What is the potential energy for and object with mass of 15 Kg and 20 m above the ground?

A 700-watt gasoline engine and a 300-watt electric motor both do 3 joules of work. which machine can do the work faster?

You have just completed a wonderful meal of pasta and crusty bread followed by a huge piece of chocolate cake. This carbohydrate-rich meal has lead to the release of large amounts of sugar into your bloodstream.

A girl is sitting in a sled sliding horizontally along some snow (there is friction present). The normal force supporting the girl and sled is 636 N. If the coefficient of static friction is 0.

Mariner 10 was the first to visit this planet in 1974. Which planet is this?

What would happen if the moon was hit by an asteroid

Which of the following is not a fundamental quantity? A. time B. weight C. mass D. length E. electric charge

A car moving at a steady 10 m/s on a level highway encounters a bump that has a circular cross-section with a radius of 30 m. The car maintains its speed over the bump. What is the normal force exerted by the seat of the car on a 60.

Determine the magnitude of the force p required to hold the 180-kg crate in equilibrium.

Match the following: 12) Site where resistance to blood flow is greatest. 13) Site where blood pressure is lowest. 14) Site where exchanges of food and gases are made. 15) Site where the blood pressure is greatest.

How many trees were sold in all during 1999 and 2000?