A 95.0kg weightlifter pushes on a 800,000 kg wall for 400s but it does not move. How much work does he do on the wall?

Sandra's target heart rate zone is 135bpm-172bpm. Marissa's target heart rate zone is 143bpm-176bpm. They stop playing basketball and take their pulse, and both count the heart rate at 144bpm.

The product of voltage across a device and the charge passing through it is: field strength work force inductance

Electron guns are used in X-ray tubes. The electrons are accelerated through a relatively large voltage and directed onto a metal target, producing X-rays. (a) How many electrons per second strike the target if the current is 0.

Joan purchased a large, tough cut of beef. To make the meat more tender what should she do

when an object applies a force on another object, the second object applies a force of the same on the first object

A worker pushes horizontally on a large crate with force of 298 N and the crate is moved 4.3 m. How much work was done?

What would happen to the volume of a ballon left on a sunny window sill and which gas law pridict this result

An open-topped freight car with mass 24,000 kg is coasting without friction along a level track. It is raining very hard, and the rain is falling vertically downward. Originally, the car is empty and moving with a speed of 4.00 m/s.

Photons travel outward from a light bulb in

The critical angle for a beam of light passing from water into air is 48.8°. this means that all light rays with an angle of incidence in the water that is greater than 48.8° will be