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Talja [164]
3 years ago
5

The image shows water passing through a barrier.

Physics
2 answers:
Aloiza [94]3 years ago
8 0
C is the answer for this question
zloy xaker [14]3 years ago
3 0

It is diffraction

Explanation:

The opening is the aperture

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620 J of heat is added to the cylinder of an engine, which causes the gas inside to expand. As a result, the piston of the engin
Maru [420]

Answer:

<u>400</u> J work is done BY the engine.

The internal energy of the gas is <u>620</u> J

Explanation:

The given information are;

The heat added to the cylinder = 620 J

The force applied by the piston of the engine = 8.0 kN = 8,000 N

The distance over which the force moves (the piston) = 5.0 cm = 0.05 m

The work done (by the engine) = Force × Distance = 8,000 N × 0.05 m = 400 J

The internal energy is the sum of the kinetic and potential energy of the system

Therefore, given that the internal energy, U, is the sum total of the energy in the system

∴ U = The heat supplied to the system = 620 J

Which gives;

<u>400</u> J work is done BY the engine.

The internal energy of the gas is <u>620</u> J.

6 0
3 years ago
What type of energy does the box have after it is done being pulled?
Ksivusya [100]
Assuming that the box is moving when it is being pulled, Work is done on the box.

So work is the Force times the distance

W=Fd

But what is work actually ? When something moves due to force over some change in distance, it have energy.

But where does this energy come from ? Does it magically appear ? The energy comes from the applied force onto the box.

So the energy have been transferred. And it’s like that throughout the universe

Now to save time, I’ll just tell you the answer: kinetic energy

:)
3 0
3 years ago
If a planet's orbital speed is 20 km/s when it's at its average distance from the sun which is most likely orbital speed when it
Alona [7]

Answer:25km/s

Explanation:

8 0
3 years ago
The kinetic energy <br> as the roller coaster goes downhil
Step2247 [10]

Answer:

Increases

Explanation:

The kinetic energy _____ (Increses)

as the roller coaster goes downhill

4 0
2 years ago
Read 2 more answers
Select the correct answer.
satela [25.4K]

Answer:

all of the above

Explanation:

muscular endurance is the ability to be able to do muscular activities for a long period of time. The longer you do it, the better you can handle it and for longer.

7 0
3 years ago
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