You have a ball in your hand above the ground at rest which you then drop. What energy is involved in each part of this situation and how do we know that total mechanical energy has been conserved? Explain with and without air resistance present.

Gravity will have greater effect on an object with ... less force, more mass, less weight, or more change

Which force is responsible for producing a stable nucleus by opposing the electrostatic force of repulsion between protons? (1) strong (3) frictional (2) weak (4) gravitational

If a wave has a wavelength of 9 meters and a period of 0.006, what is the velocity of the wave? A. 1,285 m/s B. 1,200 m/s C. 1,800 m/s D. 1,500 m/s

Determine whether or not each of the following statement is true. If a statement is true, prove it. If the statement is false, provide a counterexample and explain how it constitutes a counterexample. Diagrams can be useful in explaining such things.

A 1.5m wire carries a 2 A current when a potential difference of 52 V is applied. What is the resistance of the wire?

What is not a factor that affects the viscosity of magma?

While driving his 600-kg ultra-compact electric car, a distracted driver starts crossing a drawbridge. Not realizing that the drawbridge is about to open, he ends up in the river below with his car.

A police officer's radar gun emits radio waves at a frequency of 10.7 GHz10.7 GHz. What is the difference in the frequencies reflected back to the radar gun by a car traveling at the 75 mph75 mph speed limit and a car travelling 9 mph9 mph faster?

Function of a battery

When an electric current runs through a wire, a magnetic field is induced ... O Around the wire O Parallel to the wire O Under the wire O Through the wire