A 0.05-kg car starts from rest at a height of 0.63 m. Assuming no friction, what is the kinetic energy of the car when it reaches the bottom of the hill? (Assume g = 9.81 m/s2.) * 1 point
0.0475 J
0.466 J
4.317 J
0.308 J

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.

it's a b and

+15-35=-20

going in opposite directions