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baherus [9]
3 years ago
13

Forces can...

Physics
1 answer:
dlinn [17]3 years ago
7 0

Answer:

D

Explanation:

Forces can change speed of motion, the more force that's applied when you push a ball for example, the faster the ball will go. Force can also change the shape of objects by applying pressure to them too. The inertia from force can change direction, as when you let's say hit a tennis ball, it won't go perfectly straight. So all of the above are correct

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A gas is confined to a container with a massless piston at the top. A massless wire is attached to the piston. When an external
Afina-wow [57]
 <span>Note that internal energy is a state function. That means internal energy of the gas can be expressed as function of two state variables, e.g. U = f(T;V). For an ideal gas internal function can be expressed of temperature alone. But is not necessary to make ideal gas assumption to solve this problem. 
Because internal energy is a state function, a process changing from state 1 to state 2 has always the same change change in internal energy irrespective of the process design. 
The one-step compression and the two two-step compression start at the sam state and end up in same state. the gas undergoes the same change in internal energy: 
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The work done on the gas is given by piston is given by the integral 
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For constant external pressure like in this problem this simplifies to 
W = - P_ex ∙ ∫ dV from V_initial to V_final 
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I hope my guide has come to your help. Have a nice day ahead and may God bless you always!</span>
5 0
4 years ago
Read 2 more answers
Finding spring constant given displacement of spring and distance traveled by a cart
Alborosie
 - (spring constant) (new length of spring - original length of spring) = Force applied to spring.
that is
-kx=F

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Answer:

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Explanation:

hope it helps

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3 years ago
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These stars fuse helium into carbon just like the sun.
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