If a boy (m = 50kg) at rest on skates is pushed by another boy who exerts a force of 200 N on him and if the first boy's final velocity is 8 m/s, what was the contact time?

Turner's treadmill starts with a velocity of -2.7 m/s and speeds up at regular intervals during a half-hour workout. After 33 min, the treadmill has a velocity of - 7.1 m/s.

Que es la luz y porque podemos ver los objetos.

Try at home mini-experiment. You will need 3 glasses-same size and shape. Fill one half-way with water, another almost full to the brim, and the other ¼ full with water. Order the glasses from least to greatest. Gently tap one glass with a spoon.

Caleb is swinging Rachel in a circle with the Centripetal force of 533N. If the radius of the circle is 0.75m and Rachel has a mass of 16.4kg, how fast is Rachel moving? Round to the nearest tenth. Answer: 4.9 m/s Why? I just took the test; )

How does changing the amplitude affect the energy of the wave

A rightward force of 302 n is applied to a 28.6 kg crate to accelerate it across the floor. thye coefficient of friction between the crate and the floor is 0.750. determine the acceleration

How the properties of sound waves change as they spread out in a spherical pattern

If legos are plastic can they be recycled?

At an accident scene on a level road, investigators measure a car's skid mark to be 93 m long. It was a rainy day and the coefficient of friction was estimated to be 0.35.

How does a shorter wavelength affect the frequency of a wave?