Correct answer only ! i cannot retake this and i need all correct answers !

the earth has a protective magnetic field around it, that is created by

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of

Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery