A person has a gravitational force (weight) of 600 N on Earth. Suppose the mass of the Earth is double and the radius shrinks to 1/3 of what it currently is. Calculate your new weight.

Find the momentum for a 2.6-kg brick parachuting straight downward at a constant speed of 8.4 m/s .

What are the applications of electromagnetic waves

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.