The force required to compress the gas in a gas spring a distance x is given by where the constant is determined by the geometry of this device and k is determined by the gas used in the device. One such device has a constant of 200 lbf·in1.4 and k = 1.4. Determine the work, in Btu, required to compress this device from 2 in to 7 in.
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Ответ:
Explanation:
Given relation:
Force,![F=\frac{c}{x^k}](/tpl/images/0513/1892/8be61.png)
where:
Constant of the given device,![c=200\ lbf.in^{1.4}](/tpl/images/0513/1892/31813.png)
initial position of piston,![x_i=2\ in](/tpl/images/0513/1892/db176.png)
final position of piston,![x_i=7\ in](/tpl/images/0513/1892/48abe.png)
so the net displacement:
Substituting the values in the given relation:
Now the work done :
![W=105.061\ lbf.in](/tpl/images/0513/1892/44470.png)
∵So,
Ответ:
look it up
Explanation: