The transitional speed of the rotating is 33.8 rad/s
What is angular momentum and an illustration of it?The term "angular momentum" refers to the characteristic of any rotating object that is determined by the product of the rotating item's angular velocity and moment of inertia. It is a vector with a direction and a magnitude. The rotation and revolution of the Earth are common instances of angular momentum.
What characteristics does angular momentum have?The angular momentum of a body in classical mechanics is a vector that can have any length and any direction. Imagine a bicycle wheel spinning. The direction of its angular momentum is along its axle, and the length of it is proportional to its angular velocity (number of revolutions per unit time).
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What are the 4 pillars of design thinking?.
Asking others helps you understand; pattern-spotting helps you explore. create a physical prototype; Always iterate when evaluating.
What are the three design pillars, and why is each one significant?They are the audience, the setting, and the message. I refer to them as pillars since they should always be supporting your design. Your design won't be as structurally solid if you remove even one of these pillars. Prior to developing, think about your audience.
What do design principles entail?Design is governed by twelve fundamental principles: contrast, balance, emphasis, proportion, hierarchy, repetition, rhythm, pattern, white space, movement, diversity, and unity. Together, these principles enable designers to produce user-friendly designs that are both aesthetically pleasing and useful.
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The 70 kg student in figure p14. 43 balances a 1200 kg elephant on a hydraulic lift. What is the diameter of the piston the student is standing on?.
The piston the student is standing on has a 0.22-times larger diameter than the piston the elephant stands on.
What is mechanical advantage of a hydraulic lift?Pascal's law is shown via the hydraulic system.In doing so, we are able to use a modest force on the small piston to generate a bigger force on the huge piston.At each piston, the ratio between the force and the area must be the same.The three practical tools that make use of Pascal's law are hydraulic presses, hydraulic lifts, and hydraulic brakes.Given parameters:
Mass of the student: m = 70 kg.
Mass of the elephant: M = 1200 kg.
Let the diameters of the piston the student is standing on and the piston the elephant is standing on are respectively d and D.
Using Pascal's law , we can write,
Force applied by the student's weight ÷ area of the piston the student is standing on = Force applied by the elephant's weight ÷ area of the piston the elephant is standing on.
⇒ 70 kg × g / π d² = 1200 kg × g / π D²
⇒ 1400 d² = 70 D²
⇒ d= 0.22D.
Hence, The piston the student is standing on has a diameter that is 0.22 times larger than the piston the elephant is standing on.
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after a star like the sun fuses all the hydrogen in its core into helium, select one: a. it will become a red giant. b. it will begin fusing hydrogen
A red behemoth will develop from it. Option a&b are both what will cause it to start fusing hydrogen.
What does "core" actually mean?the heart, soul, or most fundamental component of everything. known as magnetic core as well. Electricity. the centre or inner component of an electromagnet, an induction coil, a transformer, or a device of a same kind, made of an iron piece, a bundle of iron wires, or some other ferrous substance.
What is the essence of who you are?The core convictions you have about yourself are your values. Your attitudes, choices, and deeds are influenced by them. They help people feel more motivated and valuable. They serve as a reminder of your priorities and the things you wish your life contained more of.
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Answer: B happens first, then A is the result
Explanation: it begins fusing hydrogen and becomes a massive red giant star
A 45.0 l sample of gas has a pressure of 975 torr at 35.2 c if the volume changes to 3.6 x 10^3 ml and the pressure changes to 2.61 atm what is the new temperature in ∘C?(8 points)
A 45 L sample of gas has a pressure of 975 torr at 35.2°C. The new temperature in °C is -222°C.
Given that, volume V₁ = 45 × 10³ ml
Pressure P₁ = 975 torr
Temperature T₁ = 35.2 °C = 35.2 + 273 = 308.2 K
V₂ = 3.6 × 10³ ml
P₂ = 2.61 atm = 1983.6 torr
T₂ = ?
The formula of combined gas law is P₁ V₁ / T₁ = P₂ V₂/ T₂
975*45 × 10³ / 308.2 = 1983.6*3.6 × 10³/ T₂
T₂ * 975 * 45 / 308.2 = 1983.6 * 3.6
T₂ = 1983.6 * 3.6 * 308.2 / 975 * 45 = 50.16 K - 273 = -222°C
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a plane is flying horizontally with speed 279 m/s at a height 1390 m above the ground, when a package is dropped from the plane. the acceleration of gravity is 9.8 m/s 2 . neglecting air resistance, when the package hits the ground, the plane will be
When the package hits the ground, the plane will be 4,687.2 m away.
What is the time of motion of the package?
The time taken for the package to fall from the given height is known as the time of motion of the package and the magnitude is calculated by applying the following kinematic equation.
h = vt + ¹/₂gt²
where;
v is the initial vertical velocity of the package = 0g is acceleration due to gravityt is the time of motion of the packageh = 0 + ¹/₂gt²
t = √(2h/g)
t = √ [ (2 x 1390) / ( 9.8) ]
t = 16.8 seconds
The horizontal displacement of the plane at this time;
X = ut
where;
u is the horizontal speed of the planet is the time of motion of the packageX = 279 x 16.8
X = 4,687.2 m
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Part E Consider the same balloon as in Part D. Based on what you learned in the video and your answer to Part D, if you assume that your balloon began very tiny and has been expanding at a constant rate, what can you conclude about how long your balloon has been expanding? O Your balloon has been expanding for 3 seconds. O Your balloon has been expanding for 5 hours. O Your balloon has been expanding for 1 hour. O You cannot draw a conclusion with the information given.
The thing that you can conclude about how long your balloon has been expanding is option B: Your balloon has been expanding for 5 hours.
What led to the balloon's expansion?Baking soda and vinegar combine to produce carbon dioxide gas when combined. As the gas in the bottle starts to increase, the balloon starts to swell. The balloon will expand to a larger size as more gas is produced.
Note that It is merely the expansion of air that has been trapped in the balloon and container. When heated, air expands, causing it to either spread out and fill a greater space or increase pressure in a closed space.
Hence, Cold air outside the balloon exerts force on the balloon from all sides as the hot air inside the balloon expands in all directions (higher pressure force).
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How is dark matter connected to the expansion of the universe?.
The dark matter related to the expansion of the universe Dark matter attracts galaxies.
Dark matter slows the expansion of the universe, while dark energy accelerates it. Dark matter acts like gravity a kind of cosmic glue that holds our universe together. This is because dark matter interacts with gravity but does not reflect, absorb or emit light. Dark energy does not accelerate the universe by outward pressure or antigravity.
As the universe continues to expand the energy density changes thus accelerating the universe. Dark matter played an important role in the formation of galaxies. Researchers use astronomical surveys to create maps of the location of dark matter in the universe based on how light from distant galaxies bends on its way to us.
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Two wires carrying equal currents lie in the plane of the screen with currents to the right. These horizontal wires are connected to a battery with wires that are vertical and can be ignored in this problem. The length the wires is
I=1.67 m, the distance between the wires is d=1.846×10^−3 m, and the current is i=19.20 A. In this problem, only consider field due to the horizontal parts of the wires, and assume that the field due to these wires is approximately equal to that of an infinite straight wire. What is the magnitude of the force on the top wire? Give your answer in Newtons to three significant figures.
Two wires carrying equal currents lie in the plane of the screen with currents to the right. These horizontal wires are connected to a battery with wires that are vertical and the magnitude of the force on the top wire 20.8017 × 10⁻⁴ T
How is it calculated?Given is ,
μ₀ = 4π × 10 ⁻⁷
d = 1.846 × 10⁻³ m
i = 19.20 A
The magnitude field at distance d due to bottom wire is given by,
B = μ₀ i / 2πd
B = (4π × 10 ⁻⁷× 19.20) / (2 × 3.14 × 1.846 × 10⁻³)
B = (2 × 10 ⁻⁷ × 19.20) / (1.846 × 10⁻³)
B = (38.4 × 10 ⁻⁷) / (1.846 × 10⁻³)
B = 20.80173348 × 10⁻⁴
B = 20.8017 × 10⁻⁴ T
Hence , the magnitude of the force on the top wire is 20.8017 × 10⁻⁴ T
What is the magnitude of force?Force is a vector quantity, so it has magnitude and direction. A force magnitude is a number that expresses the strength of a force.Example: Suppose the force is = 10 N towards the east."East" is the direction and "10" is the strength of the force.Quantities are basically "values" or "magnitudes" of physical quantities so it is always ar scalar quantity.Can learn more about magnitude of force from
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Cargo is tied with rope on the roof of a 4.5-foot-tall car: The car travels down road at 40 milh and hits a concrete barrier and the rope snaps, allowing the cargo to propel forward Find the time it takes for the cargo to hit the ground and the horizontal distance the cargo travels. Let y represent height in feet; let x represent horizontal distance in feet, and let t represent time in seconds Equation 1: y -l6.lt2 + 4.5 Equation 2: y 0.0047x2 + 4.5
It takes 0.58 seconds for the cargo to hit the ground and it travels 0 feet horizontally.
What is cargo?
Bulk goods transported by water, air, or land are referred to as cargo. In the language of economics, freight refers to cargo that is transported for profit at a freight rate. Originally referring to a shipload, the term "cargo" is now used to refer to all forms of freight, including that transported by rail, van, truck, or intermodal container. Because perishable inventory is always moving toward a final end-use, even when it is kept in cold storage or another similar climate-controlled facility, the term "cargo" is also used to refer to goods in the cold-chain. Freight is a term that is frequently used to refer to the flows of goods that are transported via any mode of transportation. In particular by shipping lines and logistics operators, multi-modal container units, designed even though reusable carriers to facilitate unitized handling of a goods contained, are also known as cargo.
To solve for the time it takes for the cargo to hit the ground, we need to solve for t. To do this, we'll use Equation 1 and set y = 0, since the cargo will hit the ground at y = 0.
0 - 16.1t2 + 4.5
16.1t2 = -4.5
t2 = -4.5 / 16.1
t = √(-4.5 / 16.1) ≈ 0.58 seconds
To solve for the horizontal distance the cargo travels, we'll use Equation 2, setting t = 0.58 seconds.
0.0047(x2) + 4.5
x2 = (4.5 - 4.5) / 0.0047
x2 = 0 / 0.0047
x = √(0 / 0.0047) ≈ 0 feet
Therefore, it takes 0.58 seconds for the cargo to hit the ground and it travels 0 feet horizontally.
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Find the frequency of light f radiated by an electron moving from orbit n1=2 to n2=1 inside of a he+ ion.
The frequency of light f radiated by an electron = 9.860×10¹⁵ Hz
According to the Bohr model of a hydrogen atom, the frequency of light radiated by an electron moving from an orbit n₁ to an orbit n₂ corresponds to the energy level difference between n₁ and n₂ of :
E = E₀ (1/n₁² -1/n₂²)
Where,
E₀ = mₓZ²e⁴/32π²∈₀h²
Where,
mₓ is the electron mass
Z is the atomic number
e is the magnitude of the electron charge
∈₀ is the permittivity of free space
h is Planck's constant divided by 2π.
In the case of hydrogen (Z = 1).
∈₀ = -13.6 eV
The frequency of light f radiated by an electron = 9.860×10¹⁵ Hz
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calculate the theoretical volume of water in the distillate. compare this value and the estimated volume of alkenes which you calculated in the pre-lab assignment with the values that you actually observed.
On the reaction of the methyl cyclohexanol with water as mentioned methylcyclohexane is formed.
In the reaction one mole of the reactants give one ole of the product.
The theoretical yield of the product s given as 14.164
The molar mass of 1-methyl cyclohexene is =12
7=96g/m o l
Then number if theoretical moles= 14.164/96 =0.1475 moles
the moles of the reactants taken would be same as the moles of the product that has to be formed =0.1475 moles of cyclol hexanol and water
so as w know that density of water is = 1g/ml
so for 0.1475 moles of water = 0.1475
Hexanol is a colorless liquid with a fruity smell. it's far used as a flavoring additive, as an insecticide, inside the processing of leather-based, and within the manufacture of antiseptics, perfumes, plasticizers and other chemical compounds. * n-Hexanol is on the risky Substance list because it's miles mentioned by way of DOT and NFPA.
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In a wild shot, bo flings a pool ball of mass m off a 0. 68 m high pool table, and the ball hits the floor with a speed of 6. 0 m/s. How fast was the ball moving when it left the table?.
The initial velocity of the ball when it left the table is 4.7 m/s.
What is the initial velocity of the ball?The initial velocity of the ball is calculated by applying the following kinematic equation as shown below.
vf² = vi² + 2gh
where;
vi is the initial velocity of the ball when it left the tablevf is the final velocity of the ball when it hits the groundh is the height of fall of the ballg is acceleration due to gravityvi² = vf² - 2gh
vi = √(vf² - 2gh)
vi = √(6² - (2 x 9.8 x 0.68) )
vi = 4.76 m/s
Thus, the initial velocity of the ball when it left the table is a function of the final velocity when it hits the ground and the height of fall of the ball.
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the number of molecular orbitals formed is equal to the number of atomic orbirtals that are combined. when two atomic orbitals are combined, one of the resulting mos is at a lower energy than the original atomic orbitals; this is a bonding orbital. the other mo is at higher energy than the original atomic orbitals; this is an antibonding orbital. molecular orbital (mo) theory treats a molecules as a collection of nuclei with mos delocalized over the entire structure. group of answer choices
The overall amount of atomic orbitals that go into creating a molecular orbital is equal to that number. Two H protons make up a chemical H2, which is.
What is the primary energy source?The sun is one of most significant energy sources. Almost all of the energy on earth comes from the sun, which is where it all began. Sunlight provides us with solar thermal energy and can also be used by solar (photovoltaic) cells to generate electricity.
Why is energy so crucial?Because it is a core human requirement, power plays a significant role in our daily lives. Our living thing constructions are not only heated by energy, but also cooled by it.
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Identify the conditions for an elastic collision in a closed system. check all that apply. energy is conserved. velocities may change. momentum is conserved. kinetic energy is conserved. objects stick together after the elastic collision. one object may be stationary before the elastic collision.
For all collisions in a closed gadget, momentum is conserved. In some collisions in a closed machine, kinetic electricity is conserved. when both momentum and kinetic strength are conserved, the collision is called an elastic collision.
An elastic collision is a collision wherein there's no net loss in kinetic energy inside the gadget due to the collision. each momentum and kinetic energy are conserved quantities in elastic collisions.
Kinetic energy is the energy an item has because of its movement. If we want to boost up an item, then we must practice pressure. applying a force calls for us to do paintings. After work has been accomplished, strength has been transferred to the item, and the object can be shifted with a new regular speed.
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Answer:
1234 and 6
Explanation:
100% on edge
the glass core of an optical fiber has an index of refraction 1.64. the index of refraction of the cladding is 1.49.
Consequently, an optical fiber's glass core has a 0.58° index of refraction.
What is index of refraction?The ratio of the speed of light in a vacuum (c) to the speed of light in a medium (c') is known as the index of refraction (n): The propagation vector in the new medium has a different angle with respect to the normal as a result of this difference in speed when light travels from one medium to another at an angle. The refractive index of glass is 1.5. This indicates that the speed of light in glass is not independent of light color and is 1.5 times slower than in a vacuum.
What is the thinnest index for glasses?The thinnest, flattest, and most aesthetically pleasing lens ever created is a high index 1.74 lens. These incredibly thin lenses provide you the best in both technology and aesthetics because they are 5% thinner than 1.67 high index lenses and approximately 50% thinner than plastic.
Briefing:refractive index of glass (n₁)= 1.64
refractive index of cladding,(n₂) = 1.49
To ensure that the refracted angle in the cladding is 90°, we must determine the critical angle in the core.
Using Snell's Law we have
n₁ x sin (θ₁ ) = n₂ x sin(θ₂)
θ₂ = 90°
n₁ x sin (θ₁ ) = n₂ x sin(90°)
Ɵ₁=sin⁻¹ (n₂/n₁)
Ɵ₁=sin⁻¹ (1.49/1.64)
Ɵ₁=sin⁻¹(0.908)
Ɵ₁=90.58
However, the normal is used to quantify this angle.
= 90° - 90.58°
= 0.58°
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How did you determine the distance and displacement?.
Just draw a vector from start to end and solve for the length of that line.
Distance is a measure of how much ground an object covers as it moves, and displacement refers to the distance an object is displaced. This article let us understand the difference between distance and displacement. Draw a vector from the start point to the endpoint and solve for the length of that line.
Distance traveled is defined as the actual distance moved by the object, and displacement is the linear path between the start and endpoints. Distance is defined as the magnitude or amount of displacement between two locations. Note that the distance between two points is not the same as the distance traveled between the two points.
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monochromatic light falls on two very narrow slits 0.043 mm apart. successive fringes on a screen 6.10 m away are 8.8 cm apart near the center of the pattern.
In a double-slit interference experiment, the gap y of most of order m from the middle of the observed interference sample at the display screen is y = mλD/d.
where D = 6.10 m is the space of the display screen from the slits, and d = 0.043 mm = 0.043 × 10⁻³ m is the distance between the two slits.
The fringes at the display are 8.8 m apart from each other means the primary most (m=1) is placed at y=8.8 m apart from the middle of the sample.
Therefore, from the previous components we can locate the wavelength of the light:
λ = yd/mD = (8.8m) (0.043 × 10⁻³m) / (1) (6.10m) = 62.03 × 10⁻⁷m
And from the relationship between frequency and wavelength, c = λf, we are able to find the frequency of the light:
f = c/λ = 3 × 10⁸ m per sec / 62.03 × 10⁻⁷ = 0.048× 10⁻⁷ Hz
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Two wheels are free to spin about the same axle. The moment of inertia of wheel 1 is 2.58 kg m2, and the moment of inertia of wheel 2 is 1.30 kg m2. When the axle is in its initial position, wheel 1 spins clockwise with an angular speed of 35.00 rad/s, and wheel 2 spins counterclockwise with an angular speed of 39.00 rad/s.
(a) What is the magnitude of the angular momentum of the two disk system in this initial position?
kg m2/s
(b) The axle is rotated, or tilted, by 180° to its final position. What is the magnitude of the vector quantity ?L?
kg m2/s
(c)The wheels are returned to their initial position, and wheel 2 spins clockwise at 39.00 rad/s. What is the magnitude of the angular momentum of the two disk system in this new configuration?
kg m2/s
(d)The axle is once again rotated, or tilted, by 180° to its final position. What is the magnitude of the vector quantity ?L?
kg m2/s
L = I, where L is angular momentum, I is rotational inertia, and (the Greek letter omega) is angular velocity, is the formula for angular momentum.
What is the angular momentum rule?(a) The two wheels' moments of inertia are I 1 = 2.12 kg/m2 and I 2 = 1.44 kg/m2.The same axle can be freely spun by two wheels. Wheel 1 has a moment of inertia of 2.12 kg m 2 while wheel 2 has a moment of inertia of 1.44 kg m 2.5.27 kg. #m2. = c. 1. 12. (10)(0.452) + 10(0.2252)d + c. 2.The mass moment of inertia of the wheel about an axis perpendicular to the pageThe polar opposite is true.This was how things were developing.The direction it is currently traveling is this.I decided to make this either positive or negative.A body's resistance to a change in the direction of its rotation or angular momentum is measured by its mass moment of inertia, also referred to as rotational inertia.To learn more about the angular momentum refer to:
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you would like to photograph a circular diffraction pattern whose central maximum has a 1 cm diameter. you have a helium-neon laser (wavelength of 633 nm) and a 0.12 mm diameter pinhole. how far behind the pinhole you need to place the viewing screen?
The pinhole need to be placed 0.776 m for the purpose of viewing the screen.
What is bright center ?Since the light waves will cover the same amount of ground, they will cover an equal number of wavelengths. This implies that there will always be positive interference there, causing a bright spot to always be visible in the center of the wall.
Coherent, incoherent waves, diffraction, polarization, and videos are all included in wave optics.
Given diameter is 1 cm
And the width = 0.12 mm
Having a bright center diameter maximum for a circular aperture of diameter D, width is determined by
w = [tex]\frac{2.44lamda L}{d}[/tex]
L = 0.12 × 633 × [tex]10^-^9[/tex] / 0.12 × 10^-3 × 0.01
thus L = 0.776 m
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while having a discussion technician a says that late model vehicles with two and three coat finishes are less susceptible to acid rain technician b says that it is still possible for acid rain to create a peripheral etch or ring on the clear coat of these vehicles
To provide a layer of protection, many automobile proprietors use a ceramic coating package like Armor Shield IX to offer a hard, thin, and invisible protect over clean coats, plastic, vinyl wraps, glass, even headlights, and wheels.
Doing so will now no longer defend from rock chips or put off stains, however a ceramic coating software repels water, prevents acid rain from penetrating to the substances, lowering the ability of oxidation, and thus, retaining the floor protected.
Acid rain outcomes whilst sulfur dioxide (SO2) and nitrogen oxides (NOX) are emitted into the surroundings and transported with the aid of using wind and air currents.
The SO2 and NOX react with water, oxygen and different chemical substances to shape sulfuric and nitric acids. These then blend with water and different substances earlier than falling to the ground.
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an airplane flying into a headwind travels the 1680-mile flying distance between two cities in 3 hours. on the return flight, the airplane travels this distance in 2 hours and 30 minutes. find the airspeed of the plane (in mi/h) and the speed of the wind (in mi/h), assuming that both remain constant.
Speed of plane, x = 616 mph and speed of wind, c = 56 mph
What is speed?Time rate at which an object is moving along a path is known as speed, whereas velocity is the rate and direction of the movement of object.
Let x be the speed of plane and c be the speed of wind
then x - c = speed without wind; and x + c= speed with wind
We know, distance=speed* time
2hr30min = 150 min=2.5 hr
1680 =(x-c)* 3
1680 =3x -3c --- (1)
1680 = (x+c)* 2.5
1680 =2.5x+2.5c ----(2)
Multiply equation (1) with 2.5 and equation (2) with 3
4200 = 7.5x -7.5c
5040 =7.5x + 7.5c
Adding these 2 equation to eliminate c
9240 =15 x
Speed of plane, x = 616 mph
1680 =3x -3c
3c =3x-1680
3c =3(616) -1680
3c =168
Speed of wind, c = 56 mph
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the differences between the spectra of type ia and type ib become more obvious as the supernova ages. in particular, the helium features in type ib spectra strengthen, and at late times the spectra show mostly intermediate mass elements like oxygen. this is a clear contrast to the type ia supernovae whose late-time spectra are dominated by iron and cobalt lines. this dominance of intermediate mass elements at late times indicated that type ib have a similar origin to the type ii supernovae, being massive stars that undergo core-collapse. the key difference between these three types of core-collapse supernovae is that snii are still surrounded by their shell of hydrogen gas. while type ib have lost this, only having their helium shell left. on the other hand, type ic have lost both their hydrogen and helium shells. this is reflected in the presence of hydrogen in the snii spectra, the absence of hydrogen but the presence of helium in type ib spectra, and the absence of both hydrogen and helium in the spectra of type ic. however, further evidence that the progenitors of type ib are massive stars, comes from the discovery of a limited number of supernovae which had normal type ii spectra at maximum but the spectra of type ib supernovae as late times. this transition from snii to snib is possible strongly suggests a common origin for both of these types of supernova.
A supernova is a powerful and luminous explosion of a star. It has the plural form supernovae or supernovas.
The transient astronomical event occurs during the last evolutionary stages of a massive star or when a white dwarf is triggered into runaway nuclear fusion. The original object, either collapses to a neutron star, or is completely destroyed. The peak optical luminosity of a supernova can be comparable to that of an entire galaxy before fading over several weeks or months.
The last supernova to be directly observed in the Milky Way galaxy was Kepler's Supernova in 1604, appearing not long after the also visible, but the remnants of more recent supernova have been found. Observations of supernova in other galaxies suggest they occur in the Milky Way on average about three times every century.
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when an object undergoing simple harmonic motion is farthest from it's equilibrium position which of the following is at its minimum?
When an object undergoing simple harmonic motion is farthest from it's equilibrium position kinetic energy is at its minimum.
What is simple harmonic motion?A motion in which the restoring force is directly proportional to the body's displacement from its mean position is known as a simple harmonic motion, or SHM. This restoring force always moves in the direction of the mean position.
A particle moving in simple harmonic motion accelerates as a(t) = - ω² x (t). Here, ω denotes the particle's angular velocity.
A constant exchange of kinetic and potential energy occurs in simple harmonic motion. Potential energy is at its peak and kinetic energy is zero at the distance from the equilibrium point that can be travelled the farthest. At the equilibrium point, the kinetic energy is at its peak and the potential energy is zero. The oscillating body has different values of kinetic and potential energy at other points in its motion.
Hence, when an object undergoing simple harmonic motion is farthest from it's equilibrium position kinetic energy is at its minimum.
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2. As a student holds a glass of iced tea, the temperature of the tea increases and the temperature of
his hand decreases. Will the temperature of his hand continue to change?
A. No, because all the heat will flow from his hand to the tea.
B. Yes, because the ice will cause the temperature of the tea to decrease.
C. No, because heat will continue to flow back and forth between both objects equally.
D. Yes, because heat will not stop flowing until both objects reach the same temperature.
Answer:
D. Yes, because heat will not stop flowing until both objects reach the same temperature.
An illustration of a triangle. Two arrows labeled a and b go up the two sides of the triangle to the top of the triangle labeled gas. An arrow labeled c goes across the bottom from the point labeled solid to the point labeled liquid. Which changes of state do the labels represent? a: b: c:.
the labels a: b: c represent sublimation : evaporation : melting
what is sublimation, evaporation and melting?
sublimation - Sublimation is the process by which solid substance becomes gaseous (or vapor) without going through the liquid state.
evaporation - It is the process by which a liquid becomes a gas. This is common when a puddle of water evaporates or clothing is dried after washing.
melting - The melting point is the temperature at which a solid becomes a liquid. This is 32F or 0C for water under normal atmospheric conditions. It can be influenced by pressure or impurity, so it is critical to specify the conditions.
here,
The arrow a goes up from point solid to pint gas is a process of sublimation.
The arrow b that goes up from point liquid to point gas is a process of evaporation.
The arrow c that goes across the bottom from point solid to point liquid is a process of melting.
the labels a: b: c represent sublimation : evaporation : melting
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Answer:sublimation, vaporization, melting
Explanation: right on edge
Are scientific models always accurate?.
Often they are not accurate because scientists may not have all the data.
A scientific model is a bodily and/or mathematical and/or conceptual representation of a system of ideas, occasions, or procedures. Scientists are seeking to perceive and recognize patterns in our world by drawing on their scientific understanding to offer motives that enable the styles to be anticipated.
Models are beneficial gear in studying science which may be used to enhance reasons, generate discussion, make predictions, provide visual representations of summary standards and generate intellectual models.
Benefits of modeling and simulation :
* Can be more secure and less expensive than the real international.
* Able to test a product or device that works earlier than building it.
* Can use it to discover unexpected troubles.
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What are 3 examples of implied powers?.
In physics, implied powers are important for understanding the behavior of matter and energy. Three examples of implied powers in physics include the conservation of energy, the conservation of momentum, and the law of gravity.
The conservation of energy is an example of an implied power in physics. This law states that energy can neither be created nor destroyed, but can be transformed from one form to another.
The conservation of momentum is another example of an implied power in physics. This law states that the momentum of a system is constant, and that it can only be changed by an external force.
The law of gravity is a third example of an implied power in physics. This law states that two objects will be attracted to each other with a force that is proportional to the product of their masses, and inversely proportional to the square of the distance between them.
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determine the maximum absolute values of the shear and bending moment. (round the final answer to one decimal place.)
Its maximum quantitative measurements of the bending moment and shear moments are equal at Mmax=0.8538kN.m.
What does the term "bending moment" mean?The vertical pressure or load given to a horizontal beam that causes bending is known as the bending moment. A ductility is a force that can change along a bar or beam's length and causes it to bend.
What different bending moments are there?Depending on the direction of the bending, there are two different types of bending moments: Positive or negative bending: The top fiber experiences compression, which prompts a tension (or tugging) response in the bottom fibre. Young's modulus for the beam's material is same in both tension and compression.
Briefing:
Take P = 3.5 kN
Taking moments about A,
RB×1=3.5×0.3+3.5×0.7+0.450
RB=3.95kN
Resolving the forces vertically,
RA+RB=3.5+3.5
RA+3.95=3.5+3.5
RA=3.05kN
3.05/x=3.95/(1-Xx)
x=0.436m
Mmax=3.05×0.436−3.5×0.136
Mmax=0.8538kN.m
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Consider a weathered rock or soil particle lying on a slope. How will the gravitational force pulling the particle downward along the land surface vary with the inclination of the slope?.
The gravitational force pulling a weathered rock or soil particle downward along the land surface will decrease as the slope angle is lessened.
The gravitational force acting on a body is due to the mass of the object. If an object is falling straight down, the gravitational force acting on the body is given by,
W = m g
W = Weight / Force of gravity
m = Mass
g = Acceleration due to gravity
If the object falls through a slope, its acceleration will be less than 9.8 m / s² which is the value of g when it falls straight down. the value of acceleration will decrease as the angle of slope is decreased.
Therefore, the gravitational force pulling the particle will decrease with decrease in angle of slope.
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We divide the electromagnetic spectrum into six major categories of light, listed below. Rank these forms of light from left to right in order of increasing wavelength. To rank items as equivalent, overlap them. View Available Hint(s) Reset Help ultraviolet gamma rays radio waves visible light infrared X rays Shortest wavelength Longest wavelength Part B Rank the forms of light from left to right in order of increasing frequency. To rank items as equivalent, overlap them. ► View Available Hint(s) Reset Help ultraviolet visible light X rays radio waves infrared gamma rays Lowest frequency Highest frequency M Part C Rank the forms of light from left to right in order of increasing energy. To rank items as equivalent, overlap them. View Available Hint(s) Reset Help gamma rays X rays infrared radio waves visible light ultraviolet Lowest energy Highest energy C..bonit
Increasing wavelength (L-R)- Gamma Rays< X rays< Ultraviolet< Visible light< Infrared< Radio waves. Gamma Rays have shortest wavelength around 10^-12 m and radio waves have longest wavelength around 10^3
A wide range of different electromagnetic radiations, ranging from shorter to longer wavelengths of light, are known to be contacted by the electromagnetic spectrum. Frequency is the quantity of waves passing through at a fixed rate per unit of time, or once every second. Hertz is a unit used to measure frequency. The distance between two consecutive peaks, or from one wave's crest to its next, is known as the wavelength, as are the distances between its crests and troughs. Inverse proportionality exists between wavelength and frequency. Increasing a wave's wavelength results in a reduction in frequency. The frequency and wavelength of electromagnetic waves have a direct and inverse relationship with respect to energy.
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