Stars are primarily formed from.

A medical facility does MRIs for sports injuries. Occasionally a test yields inconclusive results and must be repeated.

Why is water not used to control fires involving electrical equipment?

How is water introduced into rivers and streams?

For a charged particle, a constant magnetic field can be used to change

A basketball player makes a jump shot. the 0.600-kg ball is released at a height of 2.09 m above the floor with a speed of 7.52 m/s. the ball goes through the net 3.10 m above the floor at a speed of 4.07 m/s.

What field (s) does a moving electron have? A. electric and gravitational fields B. magnetic and gravitational fields C. gravitational, electric, and magnetic fields D. electric field only

Copper has a specific heat of 0.385 j. A piece of copper absorbs 5000 J of energy and undergoes a temperature change from 100 Celsius to 200 degrees Celsius. What is the mass of the piece of copper?

I need to learn some interesting facts, any smart people out here?

The planet Pluto has 1/500 the mass and 1/15 the radius of Earth. What is the value of g on the surface of Pluto? (A) 0.3 m/s2 (B) 1.6 m/s2 (C) 2.4 m/s2 (D) 4.5 m/s2 (E) 7.1 m/s2

A ball is dropped from the top of a building. TEL When does the ball have the least kinetic energy? RE O just before it hits the ground - O just after it is released O half way through the fall O after it has hit the ground