Water flows over a section of Niagara Falls at a rate of 2.4 * 106 kg/s and falls 67 m. What is the power wasted by the waterfall? The acceleration due to gravity is 9.8 m/s 2. Answer in units of W.

The distance between a charge and the source of an electric field changes from 3 mm to 6 mm. As a result of the change, the electric potential energy of the charge is A. divided by 6 B. divided by 2 C. multiplied by 2 D. multiplied by 6

An old lady uses a walker and is able to cross the street. is this inertia?

What is the force that opposes motion and can be found anytime two surfaces are in contact?

As car travels 10m/s for 5 secs. Calculate how far it traveled.

How can an increased depth of a trough be constructive interference?

You are operating a powerboat at night. You see green and white lights on another boat. What should you do?

How does Newton's second law apply to an "Egg Drop" experiment?

A 4.0-n puck is traveling at 3.0 m/s. it strikes an 8.0-n puck, which is stationary. the two pucks stick together. their common final speed is:

What career has to do with one of these listed ... fossil fuels, nuclear energy, biomass, hydropower, solar energy, geothermal energy, or wind energy.

An object is suspended from the ceiling with two wires that make an angle of 40° with the ceiling. The weight of the body is 150 N. What is the tension in each wire? 41.6 newtons 82.3 newtons 150 newtons 117 newtons