Assume that a machine puts out 8000 joules of work when the user puts in 10,000 joules of work. What is the efficiency of the machine?

What is the gravitational force excerted on an object called?

Tex, an 85.0 kilogram rodeo bull rider is thrown from the bull after a short ride. The 520. kilogram bull chases after Tex at 13.0 m/s. While running away at 3.00 m/s, Tex jumps onto the back of the bull to avoid being trampled.

0.025563g should be reported as

How many electrons are there in a diatomic oxygen molecule

A slower moving car is traveling behind a faster moving bus. The velocities of the two vehicles are: vCG = velocity of the Car relative to the Ground = + 12 m/s vBG = velocity of the Bus relative to the Ground =

What is the relationship between the mass and period in a mass hanging on spring oscillation and why?

Saturn's moon Titan has a mass of 1.35 * 1023 kg. If Titan is 1.19 * 106 km from Saturn, and Saturn's mass is 5.86 * 1026 kg, what is the gravitational force between Saturn and its moon? 2.76 * 104 N 3.29 * 107 N 3.73 * 1021 N 4.43 * 1030 N

What has occured when bubbles form in a liquid that is being heated

What would happen to the supply of ATP in your cells if you did not eat enough carbohydrates?

According to a rule-of-thumb, every 5 seconds, between a lightning flash and the following thunder gives the distance to the flash in miles.