A thin rod of length 0.88 m rests on a fulcrum at its midpoint. A mass of 0.23 kg is placed at one end of the rod. Where must a mass of 0.43 kg be placed to balance
the rod (a = 0 rad/s)?

How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.