A motor has the electrical energy equivalent to 400. joules of work. It can lift a 5.0 kg mass 2.0 meters. Calculate the work done by the motor.

The block exerts a force F on the dart that is proportional to the dart's velocity v and in the opposite direction, that is F = - bv, where b is a constant.

Late one night on a highway, a car speeds by you and fades into the distance. Under these conditions the pupils of your eyes have diameters of about 7.3 mm. The taillights of this car are separated by a distance of 1.

If 0.20 kg of iron at 100 C is added to 1.00 kg of water at 20.0 C what is the final temperature of the system

Explain how geographic features can cause local wind

A material that can easily flow is called a a. fluid. b. solid. c. buoyant force. d. hydraulic material.

What are factors that would change the position of the wave lengths measured? (There are more than one answer.) a) size of the tube b) tuning fork frequency c) distance between the tuning fork and tube d) room temperature e) area of the tube

This particle is found in the nucleus and adds mass to the nucleus, but changing its number does not change what the element is. This particle is the A. proton. B. photon. C. neutron. D. electron.

Projectile motion is an example of what kind of motion

What can change scientific knowledge?

6. What is ductility?