If the motor has an efficiency of ϵ = 0.6, determine the power that must be supplied to the motor when the elevator is hoisted upward at a constant speed of ve = 4 m/s.

A busy chipmunk runs back and forth along a straight line of acorns that has been set out between its burrow and a nearby tree. At some instant, it moves with a velocity of - 1.29 m/s-1.29 m/s. Then, 2.91 s2.91 s later, it moves with a velocity of 1.

The pull of what is weaker when 2 objects are farther apart

Why do all objects above earth's surface have gravitational potential energy

Rivers 1) change the landscape through erosion 2) are large bodies of contained water 3) usually begin low-lying valleys 4) are usually found near the poles Which is the correct anwsee

What are six forms of energy

Smaller bits of rock that pass through the atmosphere and slam into Earth's surface are called a. asteroids. b. meteors. c. meteorites. d. meteoroids.

What is the conversion from 1.2 mm to m

Which sentence contains italicized words that are used as an infinitive phrase? A. Kelly went to the grocery store. B. Tom went there for some flour. C. Mark wanted to go, but not today. D. Jane parked her car behind a truck.

The difference in electric potential between a thunder cloud and the ground is 1.53 108 V. Electrons move from the ground which is at a lower potential to the cloud which is at a higher potential.

A vitamin called folic acid is very important for neural tube development, which is the development of the baby's