How much heat is needed to rise the temperature of 72g of water by 80^c?

Can you use a heat pump to provide the temperature difference to run a heat engine? Yes, a heat engine runs on heat. Yes, a heat pump moves heat. No, heat is not created. No, the heat supplied does not create a large enough temperature difference.

In witch situation would you see a partial lunar eclipse?

A man stands on top of a cliff and shouts. He hears the echo on the third clap when he claps his hand at the rate of two claps per second. What is the distance between man & the obstruction, if the velocity of sound is 320 m/s [IOM 98] a. 320 b.

A quantity that is related to the ability of an object to change or cause change

This is the process of retaining radiation without reflecting it.

The parts of a longitudinal wave that are closet together?

If a basketball travels a distance of 4 meters in 5 seconds, what is its average speed? A. 4 meters / second B. 0.8 meters/second C. 1.2 meters/second D. 5 meters/second

Discuss the correlation or connection between stars with a higher mass and the amount of fuel they have to work with

Which has the same relationship as circle:cylinder? Triangle:sphere, square:window, rectangle:box, pentagon:counter

Which training principle does this scenario represent?