Which of the following statements about the planets is not true?

a. mercury has a greater eccentricity than venus
b. uranus has the smallest mass of the outer planets.
c. neptune has the shortest rotation period of any planet.
d. earth is the most dense planet.

Awalk up the phase change graph worksheet

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?

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.