Which type of energy is stored energy?

chemical

kinetic

mechanical

potential

A man pushes an 250-N crate at constant speed a distance of 30.0 m upward along a rough slope that makes an angle of 60° with the horizontal. The work done by the force of gravity is:

A 25-N force accelerates a boy in a wheelchair at 0.5 m/s2 What is the mass of the boy and the wheelchair?

A parachutist relies on air resistance (mainly on her parachute) to decrease her downward velocity. She and her parachute have a mass of 51.1 kg and air resistance exerts a total upward force of 657 N on her and her parachute.

Why do you think that bakery items like buiscuits, cakes and pastries are kept or displayed in glass jars or glass cabinets.

What is mitochondrion?

What is the effect of food color in the amount of food fish eat

Henry Heavtweight weighs 1000 N and stands on a pair of bathroom scales so that one scale reads twice as much as the other. What is the greater scale reading? What is the lesser scale reading?

A tape dispenser is an example of which simple machine pulley lever inclined plane screw

A brick with a mass of 20 kg and a weight of 196 N is released on a frictionless plane at an angle of 30°. What is the acceleration of the brick? A. 4.9 m/s2 B. 5.6 m/s2 C. 8.5 m/s2 D. 9.8 m/s2

As light reflects off a mirror the angle between the incident ray and reflected ray of light is 50°. What is the angle of reflection?