A 50 kg student climbs 3m to the top of a set of stairs. Calculate the change in the student's gravitational potential energy from the bottom to the top of the stairs.

What are the adaptions of the tundra

Which planet takes 84 Earth years to orbit the sun just once? 1. Uranus 2. Jupiter 3. Mars 4. Venus

A 5-kg brick sliding on an ice covered pond has a kinetic energy of 16 Joules. a box of identical mass but half the speed is sliding on the same ice. How many Joules of kinetic energy does the brick have?

Particle of the nucleus that has no electrical charge

Matter behaving like a wave rather than like a particle is best illustrated by which phenomenon?

The part of a longitudinal wave that is least dense is called a (n) rarefaction refraction contraction compression

if 100 grams is equal to 1 newton of force, and the water displaced by an object would have a mass of 40 grams, what is its buoyant force on that object?

A charge if 2 nC is placed 10cm to the right of a conducting sphere with a diameter of 2 cm. A charge of 5 nC is placed 10 nC to the left of the same sphere. determine the charge at the center of the sphere.

1) How is chemical energy transformed into potential energy?

A double-paned window has two glass panes separated by a layer of air. Why is air, rather than glass, used to fill this space?