Which two types of energy does a book have as it falls to the floor? A. Kinetic energy
B. Nuclear energy
C. Light energy
D. Magnetic energy
E. Potential energy

Astudent pushes on a 20.0 kg box with a force of 50 n at an angle of 30° below the horizontal. the box accelerates at a rate of 0.5 m/s2 across a horizontal floor. what is the value of the normal force on the box? 200 n 243 n 156 n 225 n

How do you tell if someone actually cares about you? and just say they do?

Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.