Calculate the csda range (w/in a micron) of a 4.6 mev alpha particle in water. compare this to your answer in #6 of problem set 3. how do the alpha and the proton (of the same energy) compare with respect to range?

A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.