In beachville, the last high tide occurred at 1: 00 p. m. the next high tide will happen around
a).1: 25 a. m.
b).1: 50 p. m.
c).7: 25 p. m.
d).7: 50 a. m.

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.