A cylinder is fitted with a piston, beneath which is a spring, as in the drawing. The cylinder is open to the air at the top. Friction is absent. The spring constant of the spring is 4100 N/m. The piston has a negligible mass and a radius of 0.016 m. (a) When the air beneath the piston is completely pumped out, how much does the atmospheric pressure cause the spring to compress? (b) How much work does the atmospheric pressure do in compressing the spring?

Question

surry99 · Answer

if you post the drawing I can help you with this

anonymous · Answer

http://i57.tinypic.com/19twl5.jpg

surry99 · Answer

ok what have you tried so far?

anonymous · Answer

got it right, thanks tho 

A) Pressure=Force/Area 
101,300=F/pi(.016)^2 
Solve for f, then plug F into 
F=kx. 
k=4100 
solve for X 

B)work=change in enegy, 
measure SPE (spring potential energy) 
SPE=.5Kx^2

surry99 · Answer

great