A block of mass \(m\) and density \(\rho_b\) is compressed a distance \(x\) against a spring of constant \(k\) at the base of a ramp. The block is released from rest and slides up the ramp of length \(L\) inclined at an angle \(\theta\) above the horizontal, where the coefficient of kinetic friction between the block and the ramp is \(\mu\). After leaving the ramp, the block travels through the air and falls a vertical distance \(H\) before entering a pool of water of density \(\rho_w\). The block comes to rest at a depth \(d\) below the water surface. An average resistive drag force \(F_R\) acts on the block while it is in the water. Which of the following expressions correctly relates the initial energy stored in the spring to the final state of the block?