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lisov135 [29]
3 years ago
10

Formula da força de atrito

Physics
1 answer:
pentagon [3]3 years ago
3 0

F = μN

Explanation:

Choose the normal force acting between the object and the ground. Let's assume a normal force of 250 N .

Determine the friction coefficient. ...

Multiply these values by each other: (250 N) * 0.13 = 32.5 N .

You just found the force of friction.

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In an engine, an almost ideal gas is compressed adiabatically to half its volume. In doing so, 1850 J of work is done on the gas
hammer [34]

Answer:

The value of change in internal energy of the gas = + 1850 J

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Work done on the gas (W) =  - 1850 J

Negative sign is due to work done on the system.

From the first law  we know that Q = Δ U + W ------------- (1)

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Since it is adiabatic compression of the gas so heat transfer to the gas is zero.

⇒ Q = 0

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3 years ago
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