Question

If F is the restoring force in the spring and k is spring constant, than what is the mechanical energy stored in the spring when it is stretched by y on loading
(a) F²/2y
(b) F²/2k
(c) 2y/F²
(d) 2k/F²

Answer 1

Answer:

35. One mole of ideal gas expands isother-

mally to double its volume at 27°C. Then,

the work done by the gas is nearly