The energy stored in the capacitor after the dielectric material is inserted is approximately 9.648 joules.
How do you calculate the stored energy?The energy stored in a capacitor is given by the formula:
E = 1/2 * C * V^2
Where E is the energy stored in the capacitor (in joules), C is the capacitance of the capacitor (in farads), and V is the voltage across the capacitor (in volts).
When a material with a dielectric constant of 7.20 is inserted between the plates of the capacitor, the capacitance of the capacitor increases by a factor of 7.20. This means that the energy stored in the capacitor also increases by a factor of 7.20.
Therefore, the energy stored in the capacitor after the dielectric material is inserted is:
E = 1.34 J * 7.20 = 9.648 J
So the energy stored in the capacitor after the dielectric material is inserted is approximately 9.648 joules.
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Stanley Milgram Shock experiment participants gave intense electric shocks to strangers if they were asked to do so by the experimenter No shocks were actually delivered but the participants believed that they were delivering the shocks and kept shocking the stranger (who was really an actor seated in another room) as punishment for responding incorrectly to a word problem
The Milgram Experiment with Shock By Saul McLeod, 2017 update One of the most well-known experiments on obedience in psychology was conducted by Yale University psychologist Stanley Milgram.
He conducted an experiment that looked at the tension between following orders and one's conscience. Stanley Milgram, a social psychologist at Yale University, conducted the Milgram experiment (or experiments) on compliance to authoritative persons. November 5, 2018 revision. Stanley Milgram, a psychologist, investigated the ideas of submission and authority in a number of research in the 1960s. His studies comprised giving study participants orders to shock an actor in a different room with shocks of increasing voltage; the actor would scream at first and then go silent as the shocks grew stronger.
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No astronomical object that produces a continuous visible spectrum of light has ever been observed. However, there are many astronomical objects that produce emission or absorption spectra. Read the following descriptions of astronomical objects, and then sort the labeled images into the appropriate bins according to the type of spectrum each object produces
Emission spectrum:
- Emission nebula
- Planetary nebula
Absorption spectrum:
- Sun
- Atmosphere on Titan
Spectroscopy is a highly valuable method of astronomical investigation. Astronomers can determine the composition, density, and temperature of celestial bodies by interpreting the light they emit or absorb.
Emission Spectra
- Emission Nebula
- Planetary Nebula
Absorption Spectra
- Titan's Atmosphere
- Sun
Astrophysics is the science that applies the methods and principles of physics and chemistry to the study of celestial bodies and phenomena. As one of the founders of astrophysics put it, astrophysics is about ``determining the nature of celestial bodies, not where they are, not their positions and movements. ”. Stars, galaxies, exoplanets, the interstellar medium, and the cosmic microwave background. Emissions from these objects are examined across all parts of the electromagnetic spectrum, and properties examined include luminosity, density, temperature, and chemical composition. Because astrophysics is such a broad subject, astrophysicists study classical mechanics, electromagnetism, statistical mechanics, thermodynamics, quantum mechanics, relativity, nuclear physics, particle physics, atomic physics, molecular It applies concepts and methods from many fields of physics, such as physics.
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How did great britian changed the science of forces
Shortage of wood and the abundance of convenient coal deposits and Commercial-minded aristocracy of the great Britain changed the science of forces.
What is the Spread of the Industrial Revolution?Britain attempted to keep its manufacturing processes a secret, but people came to learn about them and brought the knowledge home with them.
Sometimes they used rowboats to smuggle the machines to nearby nations. Belgium, Switzerland, France, and the states that would become Germany were the first nations after Britain to build factories and railroads. Industrialization proven to require the establishment of a national train network. Switzerland's railroads were built in 1847, Belgium's in 1834, France's in 1842, and Germany's in the 1850s.
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(b) What name is given to the energy needed to change the state of the liquid coolant?
Answer:
Specific Latent Heat
Explanation:
The specific latent heat of a substance is the amount of energy needed to change the state of 1 kg of the substance without changing its temperature.
electromagnetic plane wave 0 points possible (ungraded) an electromagnetic plane wave is propagating in vacuum, and has a magnetic field given by: where and are positive quantities.
Electromagnetic waves propagate not only in air and solids but also in vacuum space.
Electromagnetic waves are different from sound waves because they don't need molecules to move. This means that electromagnetic waves can penetrate air solids and even outer space. Both electric and magnetic fields are sinusoidal in-plane electromagnetic waves. As you know, a sine wave has zero mean.
These are transverse waves and do not require a medium to travel. They do not obey the laws of reflection and refraction. Magnets do not require gravity or air. Instead, their power comes from the electromagnetic fields they generate themselves. A type of magnet called an electromagnet requires electricity to function. However, if you can run an electric current in space, it will still work.
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White light (400-700 nm) incident on a 600 line/mm diffraction grating produces rainbows of diffracted light.
What is the width of the first-order rainbow on a screen 2.0 m behind the grating?
the width of the first-order rainbow on a screen 2.0 m behind the grating is Δy=0.431m
Briefly:-Finding the angle from a diffraction grating with split space d is necessary to get the fringe location ym.
dSinα=mλ
Slit spacing for a grating with N slits or lines per mm is
d=1/N
d=(1/600mm)
d=1.67×10⁻³mm
At a wavelength of 400 nm:
α=Sin⁻¹(mλ/d)
α=13.9°
The first order lowest wavelength fringe is located in the following location on the screen:
y1= Ltanα
y1=.49445m
For 700nm wavelength:
α=Sin⁻¹(mλ/d)
α=24.8°
The first order highest wavelength fringe is located in the following location on the screen:
y2= Ltanα
y2= .99255m
The first order lowest and highest wavelength fringe's difference is
Δy=(0.925595 - 0.49445)m
Δy=0.431m
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a cube of mass m sliding without frictionat speed v0. It undergoes a perfectly elastic collision with the bottom tip of a rod of length d and mass M = 2m. The rod is pivoted about a frictionless axle through its center, and initially it hangs straight down and is at rest. What is the cube's velocity - both speed and direction - after the collision?
The cube's velocity - both speed and direction - after the collision is [tex]v=\frac{v_0}{5}[/tex].
What is kinetic energy conservation?
Kinetic energy, which may be seen in the movement of an object, particle, or group of particles, is the energy of motion. Any moving item uses kinetic energy, such as a person walking, a baseball being thrown, a piece of food falling off a table, or a charged particle in an electric field.
From kinetic energy conservation:
[tex]\begin{gathered}\frac{m v_0^2}{2}=\frac{m v^2}{2}+\frac{I \omega^2}{2} \\I=\frac{M d^2}{12}=\frac{2 m d^2}{12}=\frac{m d^2}{6} \\\frac{m v_0^2}{2}=\frac{m v^2}{2}+\frac{m d^2 \omega^2}{12} \\v_0^2=v^2+\frac{d^2 \omega^2}{6} \Longrightarrow(1)\end{gathered}[/tex]
From angular momentum conservation:
[tex]\begin{gathered}\frac{m v d}{2}=I \omega \\\frac{m v_0 d}{2}=\frac{m d^2 \omega}{6} \\v_0=\frac{d \omega}{3} \\d^2 \omega^2=9 v_0^2 \Longrightarrow(2)\end{gathered}[/tex]
Substituting (2) into (1):
[tex]\begin{gathered}v^2=v_0^2-\frac{3 v_0^2}{2} \\v^2=-\frac{v_0^2}{2}\end{gathered}[/tex]
The correct answer is: [tex]v=\frac{v_0}{5}[/tex]
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match the feature on mars with the best terrestrial analogy. be sure to think broadly. the analogy can be geological, chemical, or conceptual.
The two planets are similar in size, inclination, structure, composition, and the presence of water on their surfaces. They also have many key differences.
While Earth has 23h 56m and 4 s period of rotation, Mars's period of rotation is about 24 hours and 40 minutes. Mars is inclined on its axis, similar to Earth., It is inclined at 25.19° to its orbital plane.
They are both terrestrial planets. This means that both have a dense metallic core and also an overlying mantle and crust, which is composed of less dense materials (like silicate rock).
Mars also has a surface covered by a mountain range. Ice water exists beneath much of the Martian surface. Radar data and soil samples have confirmed the presence of shallow subsurface water at the middle latitudes as well.
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for the following surface, what is the minimum number of area vectors would you need to fully describe the area?
Only 1 area type of vector is necessary as the given surface is flat and the area vector must point either +x or -x-direction only. Option(2) is correct.
According to triangle regulation of vector addition minimal 3 coplanar vectors are had to get 0 resultant. We understand that best triangle is closed determine of minimal facet, Sides of triangle constitute vector, So the minimal range of unequal vectors whose vector sum may be 0 is 3.
Two vectors may have most cost while they're in identical direction, i.e. the perspective among them is 0°. And may have minimal cost while they're simply in contrary direction, i.e. perspective among them is 180°. Polygon described as a closed aircraft determine, having 3 or greater immediately aspects. So, the minimal range of the facet in a polygon is 3. So, a polygon with a minimal range of aspects is known as triangle.
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Correct Question:
For the following surface, what is the minimum number of area vectors would you need to fully describe the area?
A galaxy with constant mass density within 20,000 light-years of its center, and zero density beyond that distance.
The Milky Way's rotation curve provides evidence for dark matter. Here's why. The correct answer is in the image
The rotation curve extends far beyond the disk of the Milky Way. Our galaxy belongs to a cluster of about 54 galaxies, the so-called local group. This map shows the distribution of about three-quarters of the galaxy.
The Milky Way and Andromeda galaxies are the largest and most massive galaxies in the Local Group of galaxies. Evidence for the existence of gravitational dark matter is evident in astronomical observations, from early observations of large movements of galaxies within clusters and of the movement of stars and gas within galaxies.
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10- A block attached to a spring oscillates in simple harmonic motion along the x axis. The
limits of its motion are x = 10cm and x = 50 cm and it goes from one of these extremes to
the other in 0.25 s. Its amplitude and frequency are:
A 40 cm. 2Hz
B. 20 cm, 4Hz
C. 40cm, 2Hz
D. 25 cm, 4Hz
E. 20 cm, 2Hz
Answer:
Choice E.
Amplitude: [tex]20\; {\rm cm}[/tex].
Frequency: [tex]2\; {\rm Hz}[/tex].
Explanation:
The amplitude of a simple harmonic motion (SHM) is the maximum displacement from equilibrium.
In this question, the equilibrium is in the center of the two extremes. With one extreme at [tex]x = 10\; {\rm cm}[/tex] and the other at [tex]x = 50\; {\rm cm}[/tex], the center will be at [tex](1/2)\, (10 + 50)\; {\rm cm} = 30\; {\rm cm}[/tex].
The maximum displacement will be [tex](50\; {\rm cm} - 30\; {\rm cm}) = 20\; {\rm cm}[/tex] (or equivalently, [tex](30\; {\rm cm} - 10\; {\rm cm}) = 20\; {\rm cm}[/tex].
Frequency measures the number of cycles completed in unit time (e.g., one second.) In one full cycle of an SHM, the oscillator will travel from one extreme to another and then back to the original extreme. In this question:
Travel from one extreme to the other: [tex]0.25\; {\rm s}[/tex].Travel from the other extreme back to the original one: [tex]0.25\; {\rm s}[/tex].In other words, one full cycle of this SHM will take [tex]0.25\; {\rm s} + 0.25\; {\rm s} = 0.50\; {\rm s}[/tex]. The period of this SHM will be [tex]0.50\; {\rm s}[/tex]. Hence, the frequency of this SHM will be:
[tex]\begin{aligned} (\text{frequency}) &= \frac{1}{(\text{period})} \\ &= \frac{1}{0.50\; {\rm s}} \\ &= 2\; {\rm Hz}\end{aligned}[/tex].
5. What is the difference in momentum between
a 50.0-kg runner moving at a speed of 3.00 m/s
and a 3.00×10³-kg truck moving at a speed of
only 1.00 m/s?
The difference in momentum between the runner and truck with different masses and velocities is 2850kgm/s.
What is momentum?Momentum in physics is the tendency of a body to maintain its inertial motion. It is the product of its mass and velocity, or the vector sum of the products of its masses and velocities.
Momentum, denoted by p, can be calculated as follows:
p = mv
According to this question, a 50.0-kg runner moving at a speed of 3.00 m/s and a 3.00×10³-kg truck moving at a speed of only 1.00 m/s.
Momentum of the runner = 50kg × 3m/s = 150kgm/sMomentum of truck = 3000kg × 1m/s = 3000kgm/schange in momentum (∆p) = 3000 - 150 = 2850kgm/s
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student uses a heavy ball attached to a rope as a pendulum in an experiment. the ball is hanging so the rope is vertical. the student pulls the ball back and releases it from rest, as shown. comparing the measured value to the expected value of the speed of the ball at the lowest point of its swing, the student finds that the ball is moving slower than expected. which of the following may account for the slower-than-expected speed?
the speed of the ball lowest point of its swing, the student finds A. The student measured the mass of the ball to be higher than it actually is. B. The student did not account for the mass of the rope. С. The angle of the swing was so high that air resistance had a significant effect. D. The ball was accidentally given a small push when it was released. E. The student did not account for the stretch of the rope caused by the weight of the ball.
Answer:-(E)
The speed of ball is slower than expected speed due to stretch in length of string. The swing rate, or frequency, of the pendulum is determined by its length. The longer the pendulum, whether it is a string, metal rod or wire, the slower the pendulum swings. Conversely the shorter the pendulum the faster the swing rate.
Mass of rope or ball does not effect speed,time period or frequency.The air resistance has no significant effect on speed of ball.
Frequency is the number of occurrences of a repeating event per unit time. For clarity, also called temporal frequency, which is different from angular frequency. Frequency is measured in hertz (Hz) and corresponds to one event per second. Duration is the reciprocal of frequency because duration is the time interval between events.
For example, if the heart beats 120 times per minute (2 hertz), the period T (the interval between repeated beats) is 0.5 seconds (60 seconds divided by 120 beats). value). Frequency is an important parameter used in science and engineering to describe the speed of vibrations and vibrational phenomena such as mechanical vibrations, audio signals (sound), radio waves, and light.
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what is the magnetic field amplitude of an electromagnetic wave whose electric field amplitude is 12 v/m ? express your answer to two significant figures and include the appropriate units.\
The magnitude of the amplitude of the ⁸magnetic field in the Electromagnetic wave is 36 x 10⁸ T.
The energy of an electromagnetic wave in terms of electric field is given by,
E = 1/2e₀E²
Where,
e₀ is the permittivity of free space,
E is the the electric field amplitude.
The energy of an electromagnetic wave in terms of magnetic field is given by,
E = B²/2u₀
Where,
u₀ is the permeability of free space,
B is the the Magnetic field amplitude.
Both these energies are equal hence,
We can write,
E/B = √e₀u₀
Putting the standard values of e₀ and u₀ and E,
B = 12 x 3 x 10⁸
B = 36 x 10⁸ T
So, the amplitude of the magnetic field is 36 x 10⁸ T.
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please help and explain
King Kong carries Fay Wray up the 321-meter high Empire State Building. At the top of the skyscraper, Fay Wray’s shoe falls from her foot.
Neglecting air resistance, how long does it take for the shoe to reach the ground?
The time taken for the shoe to reach the ground is 8.1 seconds.
What is the time of motion of the shoe?
The time taken for the shoe to reach the ground is known as the time of motion of the shoe.
The value of the time of motion of the shoe is calculate using the following kinematic equation.
h = vt + ¹/₂gt²
where;
h is the height of fall of the shoev is the initial vertical velocity of the shoeg is acceleration due to gravityt is the time taken for the shoe to hit the groundThe initial vertical velocity of the shoe = 0
The new equation becomes;
h = 0 + ¹/₂gt²
t = √(2h/g)
t = √(2 x 321 / 9.8)
t = 8.1 seconds
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calculate the larmor precession frequency of a hydrogen nucleus in a 5.30 t magnetic field. assume that the shielding coefficient is zero. give your answer in hz using 5 significant digits relative to (x.xxxx).
The larmor precession frequency is [tex]2.256 * 10^8 Hz[/tex]
What is larmor precession frequency?
The rate at which the proton's magnetic moment precesses around the external magnetic field is known as the Larmor or precessional frequency in MRI. The magnetic field's strength, Bo, and the frequency of precession are correlated.
we know
f = γB (1 - σ)
where,
f = frequency
B = applied magnetic field
γ = gyromagnetic ratio
σ = shielding coefficient
For hydrogen nucleus (1H) = 42.58MHz/T
B = 5.30T
Given σ = 0 (assume)
Substituting the values in equation:
f = 42.58 * 5.30(1 - 0)
f = 42.58 * 5.30 * 1
f = 225.674MHz
f = [tex]2.256 * 10^8 Hz[/tex]
The larmor precession frequency is [tex]2.256 * 10^8 Hz[/tex]
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estimate the number of neutron stars black holes in the cluster relative to the number of main-sequence stars in the cluster.
According to estimates, the Night Sky alone contains between ten million and one billion supermassive black holes.
The contents of black holes.The singularity, the outside and inner event horizons, and black holes all have three "layers." A black wall's event horizon is the area surrounding its mouth beyond which light cannot travel. A particle cannot depart the event horizon once it has done so.
How might a black hole affect Earth?Black holes are numerous, but there is no need to be alarmed because they will not eat the Earth or the entire universe. The possibility of Earth ever being absorbed by a black storm is utterly remote. This is because their gravitational influence is less powerful at a distance.
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a pitot tube (fig. 14-48) is used to determine the airspeed of an airplane. it consists of an outer tube with a number of small holes b (four are shown) that allow air into the tube; that tube is connected to one arm of a u-tube. the other arm of the u-tube is connected to hole a at the front end of the device, which points in the direction the plane is headed. at a the air becomes stagnant so that va = 0, At B, however, the speed of the air presumably equals the airspeed B of the plane. Use Bernoulli's equation to derive a formula giving the air speed in terms of the difference h in the liquid levels in that tube, the density rho of the liquid in the U-tube, and the density of air Pair. Suppose that the tube contains alcohol and the level difference h is 34.0 cm. What is the plane's speed relative to the air? The density of the air is 1.14 kg/m3 and that of alcohol is 810 kg/m3. Air Hole A Liquid Number Units
Air speed in terms of the difference in the liquid levels in that tube is 68.85 m/s.
The density rho of the liquid in the U-tube is 810 kg/m³.
The density of air is 1.14 kg/m³.
What is Bernoulli's equation?
The conservation of energy concept as it applies to flowing fluids is stated by the Bernoulli equation. The reduction of fluid pressure in locations where the flow velocity is increased is the qualitative characteristic that is typically referred to as the "Bernoulli effect." Although this reduction of pressure in a flow route restriction may appear contradictory, it becomes less so if you think of pressure as energy density. Kinetic energy must rise at the expense of pressure energy in the high-velocity flow through the restriction.
We know.
Bernoulli's equation = P1 + hρg + [tex]\frac{1}{2}[/tex]ρ(a) v1² = P2 + hρg + [tex]\frac{1}{2}[/tex]ρv2²
Now, P is same : v2 will be 0.
[tex]\frac{1}{2}[/tex]ρ(a)v1² = hρg
v1 = [tex]\sqrt{(2hrhog)/rho(a)}[/tex]
Given,
h = 34cm = 0.34 m
rho, ρ = 810 kg/m³
ρ (a) = 1.14 kg/m³
v1 = v = [tex]\sqrt{2 X 0.34 X 810 X 9.81/1.14}[/tex] = 68.85 m/s
Hence, v = 68.85 m/s
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in a certain 2-slit combined interference and diffraction experiment, the fifth interference maximum and the first diffraction minimum are located at the same angle relative to the center of the screen.
In a two-slit interference and diffraction experiment, the fifth interference maximum and the first diffraction minimum can occur at the same angle relative to the center of the screen under certain conditions.
In a diffraction experiment, light waves passing through the two slits can also diffract and spread out, producing a pattern of bright and dark fringes on the screen. The position of the dark fringes, also known as diffraction minima, is determined by the wavelength of the light and the size of the slits.
If the fifth interference maximum and the first diffraction minimum occur at the same angle relative to the center of the screen, it means that the path difference between the waves passing through the two slits is equal to the wavelength of the light. This can be achieved by adjusting the separation between the slits, the distance between the slits and the screen, and the wavelength of the light.
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radio frequencies (rf) can set off electronic initiating devices and some very sensitive explosives in the same manner as static electricity. electronic communication transmissions should not occur within a minimum of of suspected explosives.
Radio frequency (RF) is a unit of measurement used to describe the rate of oscillation of electromagnetic radiation spectrum, or electromagnetic radio waves, with frequencies as high as 300 gigahertz (GHz) and as low as 9 kilohertz (kHz).
What is RF in radio?The electromagnetic "spectrum" refers to all electromagnetic radiation in its collective form. Electromagnetic energy includes, for example, the radio waves and microwaves that transmitting antennas emit. "Radiofrequency" or "RF" energy or radiation is the term used to refer to all of them.The most often used frequencies are those that range from 500 MHz to 3 GHz because they provide a balanced set of benefits in terms of transmission range, capacity to handle large data rates, and antennae size. Most radar systems employ the X bands (8–12 GHz).Furthermore, you must have your radio receiver tuned to a specific frequency in order to pick up the information carried by these waves. It so happens that 2.4 GHz and 5 GHz are the WiFi frequencies. Your microwave's frequency and these waves are extremely comparable.To Learn more About Radio frequency refer To:
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1. When might an ASDS be most useful and why?
2. How do Trappist-E, -F, and -G contrast with Earth?
3. Why is the greenhouse effect significant? Explain your reasoning.
4. Do you agree that humans are contributing to greenhouse gas levels? Explain your answer.
5. When might a rover be useful and why?
ASDA is found to be very proficient at detecting swirls in a variety of synthetic data with various levels of noise, implying our subsequent scientific results are astute.
What is ASDA?Applying ASDA to photospheric observations with a pixel size of 39.2 km sampled by the Solar Optical Telescope on board Hinode suggests a total number of 1.62 × 105 swirls in the photosphere, with an average radius and rotating speed of ∼290 km and <1.0 km s−1, respectively.
Comparisons between swirls detected in Bifrost numerical MHD simulations and both ground-based and space-borne observations suggest that (1) the spatial resolution of data plays a vital role in the total number and radii of swirls detected, and (2) noise introduced by seeing effects could decrease the detection rate of swirls, but has no significant influences in determining their inferred properties.
All results have shown that there is no significant difference in the analyzed properties between counterclockwise or clockwise rotating swirls. About 70% of swirls are located in intergranular lanes.
Therefore, ASDA is found to be very proficient at detecting swirls in a variety of synthetic data with various levels of noise, implying our subsequent scientific results are astute.
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Answer:
When might an ASDS be most useful and why?
Autonomous Spaceport Drone Ships would be helpful when a spacecraft needs to land in the ocean, for example. These prevent the rocket from being damaged by the water. These are typically used when a spacecraft doesn’t have enough fuel to reach its planned landing spot.
How do Trappist-E, -F, and -G contrast with Earth?
Trappist-E, -F, and -G are the planets that orbit in the habitable zone. They all have a high possibility of having water, similar to Earth. These planets are about the same size as Earth but they have about 100 times more water.
Why is the greenhouse effect significant? Explain your reasoning.
Greenhouse gases is likely what has caused the increase of warmth on our planet (global warming). People add to these greenhouse gases and they trap heat. We don’t know exactly what will be the outcome of the rise in these gases, but so far they have largely contributed to global warming.
Do you agree that humans are contributing to greenhouse gas levels? Explain your answer.
Yes, I do agree. People add to the heat-trapping greenhouse gases, like carbon dioxide, methane, nitrous oxide, and chlorofluorocarbons. Methane, for example, is increased when landfills are made of coal is mined, both of which are human activities.
When might a rover be useful, and why?
A rover might be useful when we are exploring places that aren’t safe for people. Another time rovers might be helpful is when we are exploring places that humans literally can’t go to or conduct research on because of what the planet is made out of. Since a rover isn’t human it can’t experience feelings or get hurt (it can be damaged, but that wouldn’t lose a life) therefore, it’s safer to send a rover at least until we can find out if it’s safe or not.
Explanation:
I had to do this in class
the loop is in a magnetic field 0.40 t whose direction is perpendicular to the plane of the loop. at t=0, the loop has area A=0.285 m2
The emf induced in the loop at t = 0 is
Part a)
[tex]$$\text { EMF }=14 \times 10^{-3} \mathrm{~V}$$[/tex]
The emf induced in the loop at t = 1.00 s
Part b)
[tex]$$E M F=15.67 \times 10^{-3} \mathrm{~V}$$[/tex]
What is emf induced ?
As we know that magnetic flux through the loop is given as [tex]$\phi=B . A$[/tex]
now we have
[tex]$$\phi=B \pi r^2$$[/tex]
now rate of change in flux is given as
[tex]\frac{d \phi}{d t}=B(2 \pi r) \frac{d r}{d t}$$[/tex]
now we know that
[tex]$$\begin{aligned}& A=\pi r^2 \\& 0.285=\pi r^2 \\& r=0.30 m\end{aligned}$$[/tex]
Now plug in all data
[tex]$$\begin{aligned}& E M F=(0.20) \times 2 \pi \times(0.30) \times(0.037) \\& E M F=14 \times 10^{-3} V\end{aligned}$$[/tex]
Now the radius of the loop after [tex]$t=1 \mathrm{~s}$[/tex]
[tex]$$\begin{aligned}& r_1=r_0+\frac{d r}{d t} \\& r_1=0.30+0.037 \\& r_1=0.337 m\end{aligned}$$[/tex]
Now plug in data in above equation
[tex]$$\begin{aligned}& E M F=(0.20) \times 2 \pi \times(0.337) \times(0.037) \\& E M F=15.67 \times 10^{-3} V\end{aligned}$$[/tex]
Complete question:The loop is in a magnetic field 0.40 T whose direction is perpendicular to the plane of the loop. At t = 0, the loop has area A = 0.285 square m.Suppose the radius of the elastic loop increases at a constant rate, dr/dt = 3.70 cm/s .
A) Determine the emf induced in the loop at t = 0.
B)Determine the emf induced in the loop at t = 1.00 s .
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Differentiate Sexual and Asexual Reproduction
The reason a tennis ball and a solid steel ball will accelerate at the same rate in the absence of air resistance is because why?
The reason a tennis ball and a solid steel ball will accelerate at the same rate in the absence of air resistance is because the net force to mass ratio is the same for both objects.
What is air resistance?Air resistance is described as the forces that are in opposition to the relative motion of an object as it passes through the air.
The units for the force of air resistance are in Newtons (N).
Air resistance can be gotten by taking air density times the drag coefficient times area all over two, and then multiply by velocity squared.
So we can conclude that in the absence of air resistance, the horizontal velocity of the body is unaffected by any other external force as the only force which acts on the ball is gravity.
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in this kind of amplifier, the output is exactly in phase to input. when a ve voltage is applied to the circuit, then the o/p will be positive. the o/p is non-inverted in terms of phase.
The amplifier is non-inverting amplifier.
What is amplifier?
A circuit that enlarges a signal is called an amplifier. The idea behind an amplifier is to create an output signal that is a copy of the input signal but with a stronger magnitude.
What is non-inverting amplifier?
An operational amplifier circuit with a non-inverting amplifier has an output voltage that is in phase with the input voltage. The inverting op amp, which generates an output signal that is 180 degrees out of phase, is its complement. Its output and input signal are in phase. It just amplifies the signal without altering its phase. It does not invert the phase of the signal, as its name would imply.
The amplifier is non-inverting amplifier.
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based on what we have discussed, which one of the following waves will lose amplitude as it propagates?
The sound is perceived as louder if the amplitude increases, and softer if the amplitude decreases.
What is amplitude?
A periodic variable's amplitude is a gauge of its change over a single period. A non-periodic signal's magnitude in relation to a standard value is its amplitude. There are several definitions of amplitude, which are all functions of the size of the disparities between the variable's extreme values.
The change in pressure that a sound wave causes when it is measured at a particular location is related to the amplitude of the wave. If the amplitude rises, the sound is heard as louder; if it falls, the sound is regarded as quieter.
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shown here are four small solar system bodies. identify each and explain the differences among them.
The small bodies in the solar system include comets, asteroids, the objects in the Kuiper Belt and the Oort cloud, small planetary satellites, Triton, Pluto, Charon, and interplanetary dust. As some of these objects are believed to be minimally altered from their state in the young solar nebula from which the planets formed, they may provide insight into planet Earth and the formation and evolution of the solar system.
What are those four bodies ?
The Oort Cloud is a spherical shell of millions of icy bodies which surrounds the solar system at vast distances and is thought to be the birth place of long-period comets.The Kuiper Belt is a region extending from Neptune’s orbit out to the far and distant reaches of the solar system and possibly holds the best available record of the original interstellar materials that formed the solar nebula. This region beyond Neptune is also the most probable birthplace of the short-period comets.Comets are pristine remnants from the formation of the solar system that are comprised of minerals, rock and mostly ice, much like a dirty snowball. They travel around the sun in elliptical orbits and can be inclined to the plane of the solar system at any angle. Comets can sprout tails extending many tens of millions of miles, during their closest approach to the sun.Asteroids are rocky remnants from the formation of the solar system. They are not spherical and have differing compositions and histories. Most, although not all asteroids, reside in a region between Mars and Jupiter where numerous other small rocky worlds orbit the sunTo know more bout the four bodies, visit:
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Jan Baptista van Helmont's famous experiment incorrectly showed that the plants produce most of their mass from:
Jan Baptista van Helmont's famous experiment incorrectly showed that the plants produce most of their mass from water.
In physics, mass is used to express inertia, a property common to all matter. In essence, it is the resistance of a mass of matter to changing its course or speed in response to the application of a force. The more mass a body has, the less of a change an applied force makes. Using Planck's constant, the kilogram, the ISU's unit of mass, is equivalent to 6.62607015 1034 joule seconds (SI). One kilogram is multiplied by one square meter per second to produce one joule. Since the second and the meter have already been defined in terms of other physical constants, the kilogram is determined by precise measurements of Planck's constant.
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Wire 1 of
50 cm
in length forms a one-turn loop, and a bar magnet is dropped through. Wire 2 of
100 cm
in length forms a two-turn loop, and the same magnet is dropped through. Compare the magnitude of the induced voltages in these two cases.
v 2 =2⋅V 1
v 1 −v 2 =0
v 1 −v 2 +10
v 1 =2+v 2
Induced Voltage is an electric potential that is created by an electric field, magnetic field, or current. The induced voltage is produced as a result of electromagnetic induction.
How do you get induced voltage?
The induced voltage is produced as a product of electromagnetic induction. Electromagnetic induction is the procedure of producing emf (induced voltage) by exposing a conductor into a magnetic field. The induced voltage is described by making use of Faraday's law of induction.
How is the voltage induced measured?
the voltmeter with the wire ends connected. Connect a 6 V or 12 V AC power source to the primary coil. Add turns to the transformer's secondary side, then gauge the induced voltage.
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In searching the bottom of a pool at night, a watchman shines a narrow beam of light from his flashlight, 1.3 m above the water level, onto the surface of the water at a point d = 2.9 m from his foot at the edge of the pool Where does the spot of light hit the bottom of the h = 2.2 m deep pool? Measure from the bottom of the wall beneath his foot. Express your answer to two significant figures and include the appropriate units.
The spot of light hit the bottom of the h = 2.2 m deep pool will hit the bottom at 4.98 m away.
Here ,
height h = 2.2 m
h1 = 1.3 m
d = 2.9 m
let the distance of spot where light hit bottom from side is l
angle of incidence , i = arctan(2.9/1.3)
i = 65.9 degree
Using Snell's law
1 * sin(i) = 1.33 * sin(r)
1 * sin(65.9) = 1.33 * sin(r)
r = 43.4 degree
Now , tan(r) = (l - 2.9)/h
tan(43.4 degree) = (l - 2.9)/2.2
solving for x
l = 4.98 m
the spot Light will hit the bottom at 4.98 m away
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