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?

How many grams of nano3 are required to saturate 100 grams of water at 90°c?

Other planets besides the earth have a lithosphere, but none of them has in their lithosphere, as earth does.

A block that is 80 degrees is places next to a 20 degree block. the warmer block heats the cooler block by the process of ... A) convection. B) conduction. C) a and b. D) neither a or b

An Arrow (0.2 kg) travels with velocity 50 m/s to the right when it pierces an apple (2.5 kg) which is initially at rest. After the collision, the arrow and the apple are stuck together.

An object falls for 7 seconds. How far does it fall?

The study of the evolution and the mind using principles of natural selection is evolution

Which choice best describes what our solar system contains besides the sun, eight classical planets, and their moons?

Ich of the following is not accurate when describing solids? A. The amount of pressure exerted by a solid is solely dependent on its mass. B. Molecules in solids are closer together than molecules in liquids. C.

Showing how a projectile motion is parabolic

In deep space, there is very little friction. Once they launch a probe into deep space, where there are no external forces acting on it, scientists shut the probe's engines off because the scientists want the probe to