Which waves move by replacing one particle with another

Aboxissittingonadesk. Theboxhasamassof52kg. Whatis the magnitude of the normal force acting on the box by the desk? What is the weight of the box?

A bullet moves with a velocity of 500 m/s and has a KE of 900 J Compute it's mass.

What is the difference between a bound orbit and an unbound orbit around the sun?

How much heat would be needed to completely evaporate 31.5 g of boiling water at a temperature of 100 "C? Express your answer in units of joules.

Two identical trucks have mass 5100 kg when empty, and the maximum permissible load for each is 8000 kg. the first truck, carrying 4300 kg, is at rest. the second truck plows into it at 60 km/h, and the pair moves away at 42 km/h.

You pull on a wagon resting on the sidewalk. What will happen next. A. The wagon does not move because the wagon applies more force to you than you apply to the wagon. B. The wagon moves because you apply more friction to the ground. C.

If someone travels 3000 feet in one second, how far will it travel in 18 minutes

How long did it take to reload a rifle during the 18th 19 century?

Oil flows upward in the wick of a lantern because of the liquid property called A. meniscusity. B. capillarity. C. density. D. viscosity.

A high-mass star has more "fuel" than a low-mass star. which lives longer? why?