Why is soap solution a better cleansing agent than ordinary water?

You do 20 J of work pushing a crate up a ramp. If the output work from the inclined plane is 11 J, then what is the efficiency of the inclined plane?

Discuss the relationship between size and weight of an object

What effect does a parachute have on the frictional force acting on the parachutist?

onsider two projectiles that can be shot upward by spring guns. Object A is made of solid aluminum and has a mass of 50 grams. Object B is made of cast iron and has a mass of 200 grams.

Calculate the kinetic energy of a charging elephant if its mass is 5,000kg and it moves at 8m/s

The speed of light is now to be defined 2.99792458x10^8 m/s express the speed of light to three significant figures five significant figures seven significant figures

An element that is a very reactive gas is most likely a member of what group?

Describe the concept of orbital motion as it relates to the earth., moon and sun

Which statement about human behavior would john B. Watson support

What action happens if the moon spins on its axis like a top