A2-kg object is dropped from a height of 1000 m. what is the force of air resistance on the object when it reaches terminal velocity

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body

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.

Lightning is an example of what phenomenon? a release of a large amount of energyan absorption of a large amount of energya natural electric circuita natural electric current