Figure 8-36 shows an 8.00 kg stone at rest on a spring. The spring is compressed 10.0 cm by the ston

Figure 8-36 shows an 8.00 kg stone
at rest on a spring. The spring is compressed
10.0 cm by the stone. (a) What is the spring
constant? (b) The stone is pushed down an
additional 30.0 cm and released. What is the
elastic potential energy of the compressed
spring just before that release? (c) What
is the change in the gravitational potential
energy of the stone–Earth system when the
stone moves from the release point to its maximum height? (d) W