Answer:
Any electrical or electronic device known as a voltage regulator keeps the voltage of a power source within allowable ranges. The voltage regulator is required to maintain voltages within the permitted range that the electrical equipment employing that voltage can tolerate. A device like this is frequently used in motor vehicles of all types to adjust the generator's output voltage to the electrical load and the battery's charging requirements. When there are too many voltage changes in electronic equipment, voltage regulators are also used.
The regulator should be connected properly as reverse polarity destroys the regulator almost instantly.
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a current of 3 a is passed through a lamp for 2 seconds using a 6 v power supply. the energy dissipated by this lamp during the two seconds is:
A lamp receives a 3 a current for 2 seconds from a 6 v power source. This lamp lost 3.6J of energy during those two seconds.
J=0.3 A
t = 2MIN = 2*60 =120sec
V=6v
E=VIT
=6*0.3*120
=216J
for 2 sec is
E=VIT
=6*0.3*2
=3.6J
Energy is characterized as having the "ability to accomplish work, which is the capacity to apply a force sufficient to move an object." Despite this unclear definition, the concept is actually quite straightforward: energy is just the force that moves objects. Potential and kinetic energy are the two different categories. An electrical charge carrier flow known as current often involves electrons or atoms lacking in electrons. Amperes are the common unit and are denoted by the letter A. Typically, the letter I is used to represent current. While current and electron flow in the same direction, they do so in opposite directions. Electrons move from a negative potential to a positive potential, and vice versa.
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What would happen if the price of an inelastic good went up?.
The total revenue, on the other hand, rises as a result of the higher price and constant quantity demanded for an inelastic good when the price is raised and the demand remains the same.
Inelastic demand is when consumer preferences do not change as much as changes in the price of a good. When the price increases by 20% while the decrease in demand is only 1%, the demand is said to be inelastic. Elastic items are usually required when appropriate substitutes are not available. The items with the most prevalent inelastic demand are utilities, prescription drugs, and tobacco products. Businesses that sell these items may be more tolerant of price changes because demand for them never ceases, regardless of price changes. The amount of a good that is purchased has no effect on price changes when the price elasticity of demand for that good is completely inelastic; rather, higher prices will always lead to higher overall income. whenever the cost of a thing or service changes, the demand for such items remains mostly stable.
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Water emerges straight down from a faucet with a 1.80-cm diameter at a speed of 0.500 m/s. (Because of the construction of the faucet, there is no variation in speed across the stream.) (a) What is the flow rate in cm3 /s ? (b) What is the diameter of the stream 0.200 m below the faucet? Neglect any effects due to surface tension.
The flow rate of the faucet is 127.23 cm²/s and diameter below the faucet is 1.88 cm.
For calculating the flow rate, we will use the formula -
Q = Ar
A = πr², were Q is flow rate, A is area and r is radius.
Also, radius = diameter/2
Radius = 1.8/2
Radius = 0.9 cm
Speed = 50 cm/s
Q = πr²v
Q = 3.14×0.9²×50
Q = 127.23 cm²/s
The diameter of stream will be calculated by the formula -
[tex] v_{f}[/tex]² - [tex] v_{i}[/tex]² = 2gy, where [tex] v_{f}[/tex] is final velocity, [tex] v_{f}[/tex] is initial velocity, g is acceleration due to gravity and y is diameter of stream.
[tex] v_{f}[/tex] = ✓50² - 2×9.8×20
[tex] v_{f}[/tex] = ✓2500 - 392
[tex] v_{f}[/tex] = ✓2108
[tex] v_{f}[/tex] = 45.9 cm/s
r = ✓Q/πv
r = ✓127.23/3.14 × 45.9
r = ✓127.23/144.2
r = ✓0.88
r = 0.93 cm
d = 2r
d = 2×0.93
d = 1.88 cm
Thus, flow rate is 127.23 cm²/s and diameter is 1.88 cm.
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Which part of cellular respiration produces the most ATP how does it work?.
The correct answer is Electron Chain Transport.
The process human cells use to generate ATP is called cellular respiration.
In cellular respiration there is a phase of electron transport chain and it produces majority of ATP.
The two ATP-producing processes can be viewed as glycolysis (the anaerobic part) followed by aerobic respiration (the oxygen-requiring part).
Aerobic reaction can be defined as biological and chemical processes that occurs in the presence of oxygen.
Hence, an aerobic reaction requires oxygen before it can take place or occur and it produces adenosine triphosphate (ATP) as one of its end product.
In aerobic respiration, there are two main processes:
Krebs cycleElectron chain transportIt is the electron chain transport, that produces maximum ATPs. This is a stage in cellular respiration.
In mitochondria, between the matrix and inner mitochondrial space, an electron gradient is produced by the function of ETS. This ETS gets electron from NADH and FADH₂. This proton motive force is utilized for ADP and ATP and this production is called oxidative phosphorylation. This is called phosphorylation and along with phosphorylation it also has oxidation. The proton gradient helps in the generation of large amount of ATP molecules through chemiosmosis.
ATP are produced by ATPase enzyme.
Therefore, the process through which majority if ATP is produced by cellular respiration through the process of Electron chain transport.
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a 1 kg object is dropped from a height of 100 meters. air resistance is negligible. at what height will it reach half the potential energy?
The 1kg object dropped from 100m would reach half its potential energy halfway through the drop.
What is potential energy?
Simply explained, potential energy is the energy that an object holds due to its position in relation to a zero point. An object has gravitational potential energy if it is positioned at a height above (or below) the zero height.
Potential energy is energy that is conserved or stored in a substance or object. The amount of stored energy depends on the arrangement, organization, and state of the object or substance.
It can be thought of as energy that has the "potential" to do work. When the object's position, configuration, or state changes, the energy will also change.
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a coil is connected in series with a 13.7 k resistor. an ideal 73.0 v battery is applied across the two devices, and the current reaches a value of 2.95 ma after 5.46 ms (a) Find the inductance of the coil. (b) How much energy is stored in the coil at this same moment?
The inductance of the inductor is 169Ω and the energy in the inductor is 1.48 x 10⁻³ J.
The resistance of the resistor is 13.7K and the ideal battery has EMF 73.0 V. So, the initial current in the circuit will be,
I = 73/13700
I = 5.3 mA.
The current reaches 2.95 mA after 5.46 mA.
(a). The inductance in the coil can be given by,
E = LΔI/Δt
L is the inductance and E is the EMF, So, Putting values,
73 = L(2.35)/5.46
L = 169Ω.
(b) The energy in the inductor when current is 2.95 mA,
E = 1/2LI²
Putting values,
E = 1/2 x 169 x 2.95 x 2.95 x 10⁻⁶
E = 1.48 x 10⁻³ J.
So, energy in the inductor is 1.48 x 10⁻³ J.
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what is the wavelength of an electromagnetic wave that travels at 3 x 10 m/s and has a frequency of 60 mhz? (1 mhz
An electromagnetic wave with a frequency of 60 MHz and a speed of 3 x 108 m/s has a wavelength of 5 m .
Explain about the wavelength of an electromagnetic?The wave number is given by the formula k = 2/, where is the wave's wavelength. The wave's frequency is given by the formula f = /2, where is the angular frequency.
The electromagnetic spectrum is a range of frequencies, wavelengths, and photon energies that includes frequencies between 1 hertz and over 1025 Hz and wavelengths between a few kilometers and a small portion of the size of an atomic nucleus in the spectrum of electromagnetic waves.
The radio waves Radio waves are those electromagnetic waves that have the lowest frequency and longest wavelengths.
The electromagnetic wave's wavelength can be determined using the following formula:
If =v/f, then
V is the speed.
The frequency is f.
given the aforementioned variables
f = 60 MHz = 60 000 000 Hz
v = 3 x 10 m/s
= 3 x 10 /6
=5
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Will an empty plate heat up in the microwave?.
No, empty plate doesn't get heated up in the microwave.
This is because the microwave oven heats the food by heating the water molecules that compose it.
This is achieved by increasing the vibration amplitude of the water molecules and their kinetic energy, therefore, increasing their temperature.
So, if the element that gets into the microwave oven does not contain water (as is the case of an empty paper plate), it will not heat up.
Therefore, this is all about the transfer of energy. This the principle on which microwave works. The transfer of heat energy from one object to the other increases the kinetic energy of the particle of the other object. But no object mean no heat energy transfer and the plate isn't heated.
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What is the optional vacuum cup mount bracket for the control head of a yaesu ftm-400dr?.
The Yaesu MMB-98 is an optional vacuum cup mount for the control head of the Yaesu FTM-400DR.
Cameras, scopes, testing tools, antennas, lights, signs, and much more can be mounted to them. Industrial strong suction cup for mounting your equipment to vehicles, bikes, boats, and other surfaces. The pump-active provides greater stability and suction power than the sure lock lever method. Yaesu Transceiver Mounting Brackets let you attach your radio and/or faceplate for better sight and operation. Secure attachment is provided by sturdy metal brackets. Some Yaesu accessory mounting brackets are sold separately or in kits that include a separation cable.
Yaesu Mobile Transceiver Mounting Brackets can assist you in remotely mounting your control head and primary mobile transceiver components. Vacuum cup mounting bracket with angle adjustment, newly created MMB-98. Yaesu's MMB-9 front panel attachment bracket was created specifically for Yaesu
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a pure 440 hz sine wave is applied to the input of a nonlinear power amplifier in order for our perfect pitch ee senior student, jacob, to hear and help his professor tune an antique piano perfectly. however, a frequency spectrum analysis also reveals that the output waveform of nonlinear power amplifer consists of 880 Hz, 1.72 kHz, 3.08 kHz, and 5.72 kHz sinusoidal components, with respective voltage levels of -7 dB, -23 dB, -12 dB and -48 dB relative to the 440 Hz sinusoidal output components which has an output level of 2.1 volts. a. determine the % THD of this nonlinear power amplifer and explain why this is happening b. which harmonic are being heard and show a rough spectrum diagram of the signal
(a) 51.72 is the % THD of this nonlinear power amplifier.
(b) 2nd, 4th, 7th and 13th harmonic are being heard and show a rough spectrum diagram of the signal.
How to find %THD ?(a). V = 2.1v
let V₂, V₄, V₇ and V₁₃ be components that is 880Hz, 1.76KHz, 3.08KHz and 5.72KHz.
Then, 20 ㏒ V₂/V₁ = -7 ⇒V₂ = 0.938 V
20 ㏒ V₄/V₁ = -23 ⇒V₄ = 0.1486 V
20 ㏒ V₇/V₁ = -12 ⇒V₇ = 0.527 V
20 ㏒ V₁₃/V₁ = -48 ⇒ V₁₃ = 8.36 V
So, % THD = (V₂² + V₄² + V₇² + V₁₃²) / V₁ × 100
⇒ √(0.938² + 0.1486² + 0.527² + 0.00836²) / 2.1 × 100
⇒ 51.72%
(b). Fundamental = 440 Hz
880Hz = 2 × 440 Hz
1.76KHz = 2 × 440 Hz
3.08KHz = 2 × 440 Hz
5.72KHz = 2 × 440 Hz
So, 2nd, 4th, 7th and 13th harmonic are there.
What is Harmonic?A harmonic is a wave or signal whose frequency is a multiple of the frequency of the same reference signal or wave by an integral (whole number). The frequency of such a signal or wave relative to the frequency of the reference signal or wave is another aspect of the harmonic series that the phrase might refer to.
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If you are lying down and stand up quickly, you can get dizzy or feel faint. This is because the blood vessels don't have time to expand to compensate for the blood pressure drop. If your brain is 0.4 m higher than your heart when you are standing, how much lower is your blood pressure at your brain than it is at your heart? The density of blood plasma is about 1025 kg/m3 and suppose your maximum (systolic) pressure of the blood at the heart is 116.4 mm of Hg (Note that 120 mm of Hg = 16 kP = 1.6 x 104 N/m2). Since most doctors still use mm of Hg, give your result in those units.
91.655 mm of Hg pressure is lower when our blood pressure at brain than it is at your heart.
pressure at brain= 121.8-30.135
pressure=91.655 mm Hg
Pressure is defined as force/area. To demonstrate the pressure from snow on a roof, divide the weight of the snow by the surface area of the roof. Gases are a typical pressure source in physics. A "vacuum" is used to describe the lack of pressure. Humans have long held the belief that vacuums are both improbably rare and unnatural since "nature abhors a vacuum." Actually, this is not the case.
The number of pressure units is ridiculous. It's common to use the torr or mmHg unit. This discussion is solely focused on the height of a mercury column. The atmosphere contains 760 torr, or mmHg. You could also look at mmH2O, which makes use of a comparable idea.
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with a small telescope, we see that the moon has regions that are relatively smooth and others that are saturated with impact craters. what does this tell us about the moon's development?
With a small telescope we can see the moon has regions that relatively smooth and others are saturated with Impact craters this tell us that the moon doesn't have much surface evolution.
When the moon is observed under a small telescope we can see that the some regions on the Moon are relatively smooth while some are saturated with impact craters. This discontinuity in the pattern of the surface of the Moon tell us that moon does not have surface evolution over its landscape.
When the surface of a planet evolves it shows distant pattern between the regions on it.
But because of the above mentioned certain characteristic of the regions we can tell about moon's development that the surface of the moon is not evolving that much.
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A 50 gram mass is hanging from a spring whose unstreached length is 10 cm and whose spring constant is 2.5 N/m. In the list below are described five situations. In some of the situations, the mass is at rest and remains at rest. In other situations, at the instant described, the mass is in the middle of an oscillation initiated by a person pulling the mass downward 5 cm from its equilibrium position and releasing it. Ignore both air resistance and internal damping in the spring. Assume the spring is a perfect Hooke's law spring for all the oscillations in this problem. As the time the oscillation occur, indicate whether the force vector requested points up (U), down (D), or has magnitude zero (0). 1. The force on the mass exerted by the spring when the mass is at its equilibrium position and is at rest. 2. The force on the mass exerted by the spring when the mass is at its equilibrium position and is moving downward. 3. The net force on the mass when the mass is at its equilibrium position and is moving upward. 4. The force on the mass exerted by the spring when it is at the top of its oscillation. 5. The net force on the mass when it is at the tap alpha its oscillation. Reconsider the last two questions if the person pulled the mass down by 25 cm and released it. 1. The force on the mass exerted by the spring when it is at the top of its oscillation. 2. The net force on the mass when it is at the top of its oscillation.
A 50 gram mass is hanging from a spring whose unstreached length is 10 cm and whose spring constant is 2.5 N/m. Base on the data above, it can describe of the following events:
1. In equilibrium state, the force given on the mass is equal to weigh force of the mass, or we can write it as [tex]F_{spring} = W_{mass}[/tex]. The reason why its the same, because the state of the system is equilibrium. That means, the spring must give the same amount of force to neutralize mass weigh force factor in opposite direction.
2. The force given by the spring to the mass when moving downward is bigger than when in equilibrium state. In equilibrium state, the force from spring only to neutralize weigh force factor from the mass. But, when the mass is moving downward because of some the force needed by spring to counter the mass force is bigger
3. The force given by the spring to the mass when moving upward is lower than when in equilibrium state. In equilibrium state, the force from spring only to neutralize weigh force factor from the mass. But, when the mass is moving upward the force is being decrease because the force that held the spring to streach to equilibrium state is getting lower.
4. The force given by the spring to the mass when moving downward is maximum. Maximum here is the force that is given by spring to mass is the highest force in its oscilation. When the mass is being strech 25cm down, the mass will oscilation up and down until it reach the equilibrium again. But it will not reach 25cm again in its oscillation because it damper force by the spring
5. The net force is the difference between force given by spring and weigh force of mass. At the top of its oscilation can be calculate by the difference of mass weight force and potensial force of spring with 25cm strecht
astronomers have concluded that the sun's activity varies in an 11-year cycle. which of the following statements about this cycle is true:
Over the period of 11 years, the amount of sunspots increases and decreases.
Who and what are astronomers?Astronomers do research on planets, stars, and some other heavenly bodies. They employ both space-based technology, such as the Space Telescope Hubble and ground-based technology, such as optical telescopes. Some astronomers investigate far-off galaxies and objects like neutron stars and black holes.
Is a job in astronomy rewarding?Astronomy experts have the capacity to carry out study and put their beliefs to the test. Others find it enjoyable to communicate their findings of the study to the public after they've concluded their work. Furthermore, astronomy jobs pay well enough to support a family.
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A 1500 kg elevator, suspended by a single cable with tension 16.0 kN, is measured to be moving upward at 1.2 m/s. Air resistance is negligible.1. We want to find the elevator’s speed after traveling upward 10.0 m. This could be solved with Newton's laws and kinematics, but we will use the energy principle. How much work does tension do on the elevator as it rises 10.0 m?2. How much work does gravity do on the elevator as it rises 10.0 m?3. What is the elevator's kinetic energy after rising 10.0 m?4. What is the elevator's speed after rising 10.0 m?
Tension in the Cable is 0.87 m/s6^2, Elevator's speed after it has moved 10m is 1.6*10^5 N, Work done by gravity is 1.47 * 10^3 N, Elevator Kinetic Energy is 13897.5J and Elevator Speed after rising to 10m is 4.312 m/s.
Tension is a pulling force that operates in one dimension along the cables' axes in the opposite direction from the direction of the applied force. The combined weight of the elevator box and the passenger riding inside it, in the case of an elevator, provides the pulling force in the cables is called Tension.
A moving object or particle's kinetic energy, which depends on both mass and speed, is one of its characteristics. The type of motion can be vibration, translation, rotation around an axis, or any combination of these. Kinetic energy is a type of energy that an item or particle possesses as a result of motion.
We know that,
Tension in the Cable
T = m(g+a) = g+a = T/m = 16 * 103 / 1500 = 10.67 m/s2
a = 10.67 - 9.8 = 0.87 m/s6^2
Elevator's speed after it has moved 10m.
U^2 = u^2 +2as
= 1.22 +2*0.87*10
=1.6*10^5 N
Work done by gravity = mg * 10 = 14700 * 10 = 1.47 * 10^3 N
Elevator Kinetic Energy = 1/2 mv^2 = 1/2*1500*18.53 = 13897.5J
Elevator Speed after rising to 10m ,
U^2 = u^2 +2as = 1.2 +2*0.87*10 = 18.6
U =(18.6)^1/2=4.312 m/s
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What are the 3 follow up steps you should take after a collision?.
Stop, assist anyone who is hurt, protect your cars from additional damage, dial 911, and exchange any necessary details with the authorities.
What exactly does it mean to collide?A forceful collision; the act of colliding; collision between two aircraft, or crash. a collision of goals; a dispute. When two particles or bodies collide, they each apply a force that causes them to lose or gain energy or momentum. This is known as a collision in physics.
In physics, what exactly is a collision?When particles, groups of particles, or solid objects travel in the same direction and get close enough to one another to contact and have an impact on one another, that is when a collision occurs in physics.
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TRUE/FALSE. the engine of an aircraft propeller delivers an amount of power 171 hphp to the propeller at a rotational velocity of 2410 rev/minrev/min.
The engine of an aircraft propeller delivers an amount of power 171 hp to the propeller at a rotational velocity of 2410 rev/min. This is a false statement.
What is power?
Power can be defined as the amount of work completed in a given amount of time. Watt (W), which is derived from joules per second (J/s), is the SI unit of power. Horsepower (hp), which is roughly equivalent to 745.7 watts, is a unit of measurement sometimes used to describe the power of motor vehicles and other devices.
With out knowing mass of the propeller, it can't be concluded about its rotational velocity - no mater how much power is applied on it.
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how large are asteroids? how does the total mass of all asteroids compare to the mass of a terrestrial world?
Vesta, the largest asteroid, has a diameter of about 329 miles (530 kilometers), but there are also bodies that are only 33 feet (10 meters) across.
All of the asteroids put together have less mass than the moon of Earth or terrestrial world.
What are asteroids ?Small, stony objects called asteroids orbit the Sun. Despite orbiting the Sun similarly to planets, asteroids are far smaller than planets.
Asteroids can be divided into three general composition classes: C-, S-, and M-types.
The majority of asteroids are C-type (chondrite) objects. They are dark in color and most likely made of silicate and clay rocks.
Nickel-iron alloys and silicate minerals make up the S-types ("stony").
Metal makes up the M-types (nickel-iron).
The Sun has never been hit by an asteroids, but that doesn't imply they don't! Asteroids typically stay in the belt between Mars and Jupiter known as the asteroid belt, but on rare occasions, something can cause them to deviate from their original orbits and crash into the inner solar system.
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the time it takes for a college student to travel between her home and her college is uniformly distributed between 40 and 90 minutes. refer to exhibit 6-2. the probability that her trip will take exactly 50 minutes is
For the continuous probability distribution probability at any constant value is 0. Because the interval width is 0 in that case. There must always be an interval to calculate the probability in case of a uniform distribution.
Continuous probability distribution: A probability distribution in which the random variable X can take on any (continuous) value. Since there are an infinite number of values that can be assumed by X, the probability that X will take a given value is zero.
For the probability distribution of continuous distributions in this problem each constant value is 0.
P[x= 50] = 0
P(the journey will take exactly 50 minutes) = 0
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given the proposed longitudinal profile of the centerline of a rural two-lane highway (one lane each direction) as follows: pvil2 stn 11 00 pvil2 elev. 100 ft g2. Calculate the required minimum design lengths (to meet the SSD requirements) of the three back-to-back vertical curves on this section of the roadway to accommodate a continuous design speed of 50 mph. (15 pt)
For producing this kind of energy wave a high current source must feed the primary of the pancake coil and load capacitor.
The inside lead of the pancake coil should be grounded in the earth and not be common with high current power source.
A magnetically quenched spark gap can be used for creating the short duration pulses needed that have zero back flow of energy.
The spark gap and magnets are setting for preventing this back flow by careful adjustment. This is the key for creating the longitudinal waves.
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(13%) problem 4: modern wind turbines generate electricity from wind power. the large, massive blades have a large moment of inertia and carry a great amount of angular momentum when rotating. a wind turbine has a total of 3 blades. each blade has a mass of m
Moment of inertia of 3 blades of a wind turbine with given values is
111 .375 x 10⁵ kg.m².
Each blade is in the form of rod with axis near one end of the rod so,
Moment of inertia of one blade
= 1/3 x m l²
where, m is mass of the blade and l is length of each blade.
∴Total moment of moment of 3 blades= 3 x (1/3) x m l²
=ml²
Given,
m = 5500 kg
l = 45 m
Putting these values in above equation we get moment of inertia of one blade
= 1/3 x 5500 x 45 x 45
= 37.125 x 10⁵ kg.m²
∴Moment of inertia of 3 blades
= 3 x 37.125 x 10⁵ kg.m²
= 111 .375 x 10⁵ kg.m²
i.e. Required moment of inertia of 3 blades of a wind turbine with given values is 111 .375 x 10⁵ kg.m².
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Radiation in the infrared (IR) range is________
in energy than visible or ultraviolet light. When a molecule absorbs IR radiation,_________ within the molecule and each____________ creates a band in the molecule's IR spectrum
Compared to visible or ultraviolet light, infrared (IR) radiation has [lower] energy.A molecule's internal bonds vibrate when it absorbs IR radiation, and each [ wavelength] produces a band in the molecule's IR spectrum.
Between visible light and X-rays on the electromagnetic spectrum is ultraviolet light.The wavelength range of UV "light" is between 10 and 400 nanometers. The wavelength of VL is about Four hundred nanometers. Hospitals use UV rays because of their potency to sterilize medical equipment. All living cells are destroyed by the high UV radiation doses. Elephants cover themselves in mud to shield themselves from the sun. Under UV light, scorpions glow. UV radiation is a type of non-ionizing radiation that is emitted by artificial sources like tanning beds and the sun. While it can produce vitamin D, which is good for people, there are also potential health risks. The sun is a natural source of UV radiation for us.
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The range of cannon ball fired horizontally from laboratory table i equal to 8/3*the hight of the table what i the direction of the velocity of the projectile a it trike the ground?(from horizontal)
The direction of the velocity of the projectile a it trike the ground is 63.43°.
What is velocity?
A body's or an object's motion's direction. Speed is fundamentally a scalar quantity. Velocity is a vector quantity in its purest form. It refers to the rate at which distance varies. It is the rate of displacement change.
What is height?
Height is a measurement of vertical distance, or how high something or someone is (how tall they are) (how "high" a point is).
The range ( X) of cannon ball is equal to height (h) of the cliff, which is initial height of cannon ball.
∴ X= h
Therefore, the angle which final velocity vector of the cannon ball makes with and below horizontal is given by
θ= tan ⁻¹ (2h/x)
tan ⁻¹ (2h/h) (∴ X= h)
= tan ⁻¹ 2
≈ 63.43°
Therefore, the direction of the velocity of the projectile a it trike the ground is 63.43°.
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which of the following is not a type of electromagnetic wave with lower energy than visible light waves? group of answer choices the waves that carry am or fm broadcasts radar waves microwaves x-rays
The waves that carry am or fm broadcasts. The signal that is going to be broadcast modulates the amplitude of a radio wave known as the "carrier" or "carrier wave."
What are FM and AM radio waves ?Amplitude modulation is a type of modulation used in electronic communication, most frequently for radio wave transmission of messages. Amplitude modulation involves varying the wave's amplitude according to the message signal, in this case an audio signal.By changing the wave's instantaneous frequency, information is encoded in a carrier wave using frequency modulation. The technique is utilised in computers, signal processing, radio transmission, and telecommunications.The carrier wave is modulated, or altered, in a different way. With AM radio, the signal's amplitude, or overall strength, is changed to include the sound data. The carrier signal's frequency can be changed when using FM.A carrier wave of a certain frequency is modulated using the sound of the programme material, which typically originates from a radio studio, before being broadcast.To learn more about radio waves refer :
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Stephen drove from manchester to oxford. He drove at an average speed of 60 miles per hour, for two and a half hours. How far did he drive?.
He drives to a distance of 30 miles
1 h = 60 min
60 mph/ 60 min = 1 mph per minute
1h/2 = 30 min (only half an hour)
30 x 1 (mph) = 30
What is average speed ?Velocity is the direction speed of an object in motion as a measure of the rate at which its position is changing as seen from a specific point of view and as measured by a specific unit of time.
The total distance travelled by the object in a specific amount of time is its average speed. A scalar quantity, average speed, exists. The magnitude serves as its representation, and it lacks direction.
Speed is a scalar quantity that describes how quickly an object travels over space. The ratio of distance to time, which is a scalar quantity, is the average speed.
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class dataanalytics { public static void main(string args[]) { // declare an object to receive the data scanner scan
Scanner scan = new Scanner(System. in); // prompt user to enter the data
System. out. println("Please enter the data: "); // read the data
String data = scan. nextLine(); // close the scanner
scan. close(); // print the data
System. out. println("The data entered is: " + data); } }
How does the code work?This code snippet is a basic example of data analytics. It initializes a Scanner object to receive user input, prompting the user to enter data and then reads it as a String.
The code then closes the Scanner and prints out the data that was entered by the user. This is a simple demonstration of how data can be read and analyzed using Java.
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What is called in the interior of the Earth can be classified as primordial and radiogenic heat?.
Primordial heat and radiogenic heat are the two main sources of the Earth's interior heat. The disintegration of radioactive materials deep below the Earth's interior produces radiogenic heat.
The Earth's mantle and core contain these elements, including uranium, thorium, and potassium. These elements produce heat when they decompose, which is energy. The heat produced by the Earth since its origin 4.5 billion years ago is known as primordial heat. The energy generated during the Earth's birth as a result of the condensation of gas and dust from the solar nebula is what causes this heat. The heat generated by this process is still present in the Earth's interior and is what causes the Earth's surface to move.
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at what distance from a 21 mwmw point source of electromagnetic waves is the electric field amplitude 0.040 v/mv/m ?
At a distance d from the source, the EM wave's intensity is represented 28.1m.
Determine the distance?When an electromagnetic wave source with power P generates waves isotropically in all directions, its intensity (I) is calculated at a distance d from the source as follows:
I = \sP \s4 \sπ \sd \s2.
Given to us are
The EM wave's source power is 21 mW.
At a distance d (to be determined) from the source, the electric field's amplitude is E o.
= \s0.040
V \s/ \sm
The EM wave's intensity (I)
I = \s1 \s2 \s× \sϵ \so \s× \sE \s2 \so \s× \sc \sI
= \s1 \s2 \s× \s8.85 \s× \s10 \s− \s12 \s× \s( \s0.040 \s)
2 \s× \s3 \s× \s10 \s8 \sI
= \s2.12 \s× \s10 \s− \s6
W \s/ \sm \s2
determining the distance d
At a distance d from the source, the EM wave's intensity is represented by the following formula:
I = \sP \s4 \sπ \sd \s2 \s2.12 \s× \s10 \s− \s6
W \s/ \sm \s2
= \s21 \s× \s10 \s− \s3
W \s4 \sπ \sd \s2 \sd
= \s28.1m .
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Using Figures A and B find the magnitude and direction of the buoyant force that is acting on the object submerged in the water. (Assume F1=25.0 N and F2=26.2 N. Enter your magnitude to at least three significant figures.) II||| F2 Figure A Figure B 1.2 N, downward 51.2 N upward 1.2 N, upward O 51.2 N downward
Using Figures A and B The magnitude and direction of buoyant force is 1.2N upward
Weight of object in water(F1 )= 25 N , Weight of object in air(F2) = 26.2 N
Direction and magnitude of buoyant force(FB)
We know that the spring balance measures the net normal force(N) acting on object.
In figure (B), the forces acting on object are,
Gravitational force acting in downward direction.
Tension acting in upward direction.
Hence the net force equation for object is,
Normal force = Gravitational force
Fg = F2 = 26.2 N ---(1)-
Therefore the weight(or gravitational force on object) of object is 26.2 N
Now in figure (A), the forces acting on object are,
Gravitational Force(Fg) acting in downward direction.
Normal force(F1) acting in upward direction.
Buoyant force (direction unknown)
Hence the net force equation for object is
Normal Force = Gravitational Force + Buoyant force
F1 = Fg + FB
FB = F1 - Fg = 25 - 26.2 = -1.2 N ----(2)--( negative sign indicates that the direction of buoyant force is opposite to the direction we considered earlier)
FB = 1.2 N (in upward direction)
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It is possible to travel faster than the speed of sound
