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zhannawk [14.2K]
3 years ago
15

A small ranger vehicle has a soft, ragtop roof. When the car is at rest, the roof is flat. When the car is cruising at highway s

peeds with its windows rolled up, does the roof bow upwards, remain flat, or bow downwards
Physics
1 answer:
Nezavi [6.7K]3 years ago
5 0

Answer:

roof bow upwards

Explanation:

The top of the roof of the small ranger vehicle will bow upwards. This is as a result of gas pressure on the soft ragtop roof.

  • As air begins to fill the vehicle, pressure resonates in all direction proportionally.
  • The pressure of the air will be greater than that which the roof can withstand and this forces the roof sky up.
  • It is a common scene when we see roof of ragtop vehicles bowing upwards into the sky.
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Answer:

The change in internal energy of the system is -17746.78 J

Explanation:

Given that,

Pressure P=4.63\times10^{4}\ Pa

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Using thermodynamics first equation

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Put the value of W in equation (I)

dU=Q-PdV

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Put the value in the equation

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