dinadenoirefan

22.11.2019 • 

Engineering

_11. if you applied a force of 150 lb to push a car 30' in 2 minutes, how much
horsepower would have been used?
xr) or (f=t/r)
_ 12. you have a lug nut that needs 80 ft-lb of torque. you have a 14" ratchet. how
much force would it require?
_ 13. is it better to use an 8" ratchet or a 14" ratchet to tighten the lug nut? why?
_ 14. you have a system with two gears. the driver gear has 48 teeth and the driven
gear has 12. what is the gear ratio?
loy
inc. may not be reproduced or posted to a publicly accessible

Ответ:

rosemary909

22.03.2023

Engineering

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Explanation:

Given:

initial pressure,

initial volume,

After isothermal expansion:

final volume,

a)

We have the work done in isothermal process as:

is the work by the gas in moving the external force

b)

When the force on piston is suddenly reduced to half the initial value then the process becomes near to adiabatic.

Now, using the formula for work done in adiabatic process:

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