A ball with a mass of 2.31 kilograms is rolling down a hill. What is the weight of the ball? Write your calculation with units for all quantities. PLEASE HELP T-T

Why there is no inductive reactance in dc circuits

The movement of electrons between atoms is called an

Contrast the force of gravity between these pairs of objects: 1-kg mass and a 2-kg mass that are 1 m apart; a 1-kg mass and a 2-kg mass that are 2 m apart; and two 2=kg masses that are 1 m apart. i dont understand.