What are the 2 types of electricity

What is the frequency of a water wave that travels 20 m/s with a wavelength of 200 meters?

A mass m neutron has elastic collision with a mass m' stillnucleus. How much kinetic energy does the neutron lose?

The smallest particle into which an element can be divided and still have the properties of that element is called an atom.

Estimate the acceleration you subject yourself to if you walk into a brick wall at normal walking speed. Make a reasonable estimate of your speed and the time it takes you to come to a stop. Explain your answer!

A one-kilogram plate on a shelf has 19.6 J of potential energy. If the plate falls from the shelf, what will its maximum velocity be?

How would you calculate power if work is not done?

Equipotential surface A has a potential of 5650 V, while equipotential surface B has a potential of 7850 V. A particle has a mass of 5.40 10-2 kg and a charge of 5.10 10-5 C. The particle has a speed of 2.00 m/s on surface A.

Scientists develop theories to explain natural events. What causes scientists to reject even long-held theories and replace them with newer theories?

A car traveling at 40 m/s starts to decelerate steadily. It comes to a complete stop in 5 seconds. What is its acceleration? m/s2

The majority of pelagic sediments are of which type? A. Terrigenous B. Biogenous C. Hydrogenous D. Cosmogenous