A gasoline engine operates at a temperature of 270°c and exhausts at 180°c. calculate the maximum efficiency of this engine. (note that the celsius scale is used.)

Two balls move away from each other, both traveling at 7 m/s. One has a mass of 2 kg and the other has a mass of 3 kg

A space shuttle travels around the Earth at a constant speed of 28000 kilometers per hour. If it takes 90 minutes to complete one orbit, how far is its journey around Earth? 14 Sheet 1

What does the troposphere protect us from?

A man can jog 10 miles in 90 minutes. What's his speed in mph?

A force of 5 accelerates an object. The object's mass is 50 g. What is the acceleration of the object? 0.01m/s

Through which medium would EM waves travel the fastest? A. The Ocean B. The Atmosphere C. Rocks

Average mass of a toy car (small, hot wheels) ?

A cannon directed straight upward launches a ball with an initial speed v. The ball reaches a maximum height h in a time t. Then, the same cannon is used to launch a second ball straight upward at a speed 2v.

Does the sun fuse hydrogen into helium or vice versa?

Is it possible to put a distance versus time graph to be universal go mine