Suppose the moon were held in its orbit not by gravity but by a massless cable attached to the center of the earth. what would be the tension in the cable?

What causes the development of most clouds and precipitation in the atmosphere?

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.

What ia the energy of an object because of its potential and kinetic energies