A 7.0kg ball is given an initial velocity of 14m/s and then is rolled along the floor. A friction force of 2.5N opposes its motion. For what length of time will it roll before stopping.

What type of energy transformation would be an example of using a battery to power a handheld fan? a. kinetic b. mechanical c. electrical d. potential e. thermal f. electromagnetic g. chemical h. nuclear

What is the suprising thing that happens in a superconductor

You move a 75-kg box 35 m. This requires a force of 90 N. how much work is done while moving the box?

When an object is traveling for a period of time and is neither speeding up or slowing down, the object is said to have?

Find the velocity, acceleration, and speed of a particle with the given position function. r (t = t2i 6tj 4 ln t k

Which describes the electric forces inside an atom

Why can radio telescopes be used 24 hours a day?

How do you find mass, volume and density? Any formulas?

Explain the difference between texture and composition.

Marie and Calvin dissolved 10 grams of KNO3 in 100 grams of water at 25oC. Next they added 5 grams more.