Aheating element has a resistance of 180 ω and draws a current of 1.60 a. what is its power?

When an object is heated it contracts. a. true b. false

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.

The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .