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GREYUIT [131]
3 years ago
10

When heat is added to an object, what is happening to the item at the atomic level? (Check all that apply)

Physics
2 answers:
3241004551 [841]3 years ago
6 0

Answer:

a

Explanation:

heat is energy, energy cannot be made or destroyed but transferred

Fofino [41]3 years ago
3 0

Answer:

At atomic level, the following is happening:

  • The atoms in the structure are vibrating more
  • The atoms begin to move more

Explanation:

When heat is added to an object the kinetic energy of its atoms is increased. That makes the atoms to vibrate more and to move more.

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Which of these best explains why people on Earth cannot see the entire shape of the Milky Way
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I believe the answer is A.

Since the Earth is in the Milky Way and not outside it, we cannot see the exact shape of it. Physicists have been able to track and graph the movements of the planets accurately for thousands of years, but that does not mean we know the shape of the entire solar system.<span />
5 0
3 years ago
A block of wood is floating in water; it is depressed slightly and then released to oscillate up and down. Assume that the top a
Marysya12 [62]

Explanation:

Equilibrium position in y direction:

W = Fb (Weight of the block is equal to buoyant force)

m*g = V*p*g

V under water = A*h

hence,

m = A*h*p

Using Newton 2nd Law

-m*\frac{d^2y}{dt^2} = Fb - W\\\\-m*\frac{d^2y}{dt^2} = p*g*(h+y)*A - A*h*p*g\\\\-A*h*p*\frac{d^2y}{dt^2} = y *p*A*g\\\\\frac{d^2y}{dt^2} + \frac{g}{h} * y =0

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4 0
3 years ago
The transfer of heat by the movement of a fluid is called: Think about it: Imagine a pocket of air over the land (“land air”), a
timama [110]

Answer:

The transfer of heat by the movement of fluid is called Convection Heat Transfer

Explanation:

Heat transfer by convection is the transfer of heat by fluid transport from one place to another, such that convection takes place when the heat that comes in contact of fluid containing body is moved to other parts of the container by the transporting fluid

Heat is transferred within a fluid medium mainly by convection (movement of heat by the transfer of fluid particles in the medium)

Convection heat transfer is a combination of conduction and advection heat transfer

7 0
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When the voltage is
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Explanation:

ask to nirajan shrestha

search on fb

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7 0
2 years ago
What best describes the dropping height of a ball that bounced back up to a height of 45 centimeters?
murzikaleks [220]

Answer:C:Less than 45 centimeters, as the ball transforms some of its potential energy into thermal energy and sound energy

Less than 45 centimeters, as the ball transforms some of its potential energy into thermal energy and sound energy.

Although the initial energy (potential energy is preserved), the energy of deformation as the ball strikes a surface creates energy dissipation in the form of frictional heat and audible sound energy.

Every time the ball bounces, its height will be less than its previous height.

Explanation:

6 0
3 years ago
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