A train takes 2h to reach station B from station A and 3h to return back to A. The distance between the station is 200km, then its average speed would be

Is momentum conserved in the collision?

A tennis player hits a 58.0 {/rm g} tennis ball so that it goes straight up and reaches a maximum height of 7.35 {/rm m}. How much work does gravity do on the ball on the way up?

A grapefruit falls from a tree and hits the ground 0.72 s later. How far did the grapefruit drop?

We have an object moving at 5 m/s with mass 5 kg. It undergoes a quick collision with some other object and now moves at 1 m/s. What was the change in the objects momentum

What is a atom and a molecue

How many pounds are in 427.06 g? 1 gram = 2.20 * 10-3 lb A. 194,118 lb B. 194.12 lb C. 939 lb D. 0.939 lb

Identify the possible source of earth's magnetic field

A nurse applies a horizontal force of 147 N on a bed that has a mass of 152 kg, The magnitude of the normal force acting on the bed is .967 N 5.00 N 1440 N 1490 N

What do scientists use to look at cells, tissues, and small organisms to see how their biological processes differ in space? vibration flybys airlock microgravity

Which of the following is a product of respiration resulting from the breaking of carbon-carbon bonds