A spring with k = 15.3 N/cm is initially stretched 1.81 cm from its equilibrium length. a) How much more energy is needed to further stretch the spring to 5.79 cm beyond its equilibrium length?

2.31J

Explanation:

the energy for a spring system is given by:

where is the spring constant: and is the distance stretched from the equilibrium position.

In the first case

so the energy to stretch the spring 1.81cm is:

and for the second case,  the energy to stretch the spring 5.79cm:

so to answer a) we must find the difference between these energies:

explanation:

considering the bohr theory, the type of connection that requires the transfer the answer conuldn't be right