What unit is used to measure the period of a wave

What is the magnetic force acting on an electron if its speed is 3.0 * 106 meters/second and the direction is perpendicular to a magnetic field of 0.020 teslas? The value of q = - 1.6 * 10-19 coulombs.

Which form of energy does powered flashlight receive as an input?

How would a 50 percent increase in earth's albedo impact average surface temperatures?

Calculate the velocity of a 2-kg ball that has a momentum of 10kg • m/s west

27b. You're in an airplane that flies horizontally with speed 1000 km/h (280 m/s) when an engine falls off. Ignore air resistance and assume it takes 30 s for the engine to hit the ground.

Define the term volt.

A baseball player was hit by a baseball in the left eye and complains of double vision. What should you do? A. Restrict spinal movement B. Assess pupillary response C. Perform a detailed exam D. Apply ice to orbit

An approaching storm is moving at 15 km an hour what do you need to know to determine its velocity

How did astronomers precisely determine the length of an Astronomical Unit in the 1960s?

If a 1.50 kg mass revolves at the end of a string 0.50 m long, and its tangential speed is 6.0 m/s, calculate the centripetal force.