A person weighing 565 N gets on an elevator. The elevator lifts the person 4 meters in 8 seconds. How much power was used?

You rub a rod of glass with a cotton cloth, then dip the cloth into a Faraday pail like we will be using in lab. Will a charge sensor connected to the pail give a negative reading, or a positive reading or will it read essentially zero?

How can magnet be used to produce an electric current

Which of the following are factors that determine the size of the electric potential and of electric potential energy? A. Mass and charge B. Charge and density C. Charge and distance D. Mass and distance

Which of the following happens in a heat pump? a. the compressor increases the pressure and temperature pf the refrigerant b. the compressor blows cold refrigerant into the room c none of the above

Arthur reads an article describing an experiment to test the effects of caffeine on the reaction time of humans-how long it took them to respond to a particular signal.

How much kinetic energy does a moving 6 kg object have If It moves with a velocity of 3 m/s?

List the different types of electromagnetic readiation (waves) in order from shortest wavelength to longest wavelength

Which way does the Coriolis effect deflect objects in the Northern Hemisphere To the south To the right To the left To the north

Let T be a linear transformation from a vector space V with dimension 11 onto a vector space W with dimension 7. What is the dimension of the nullspace of T?

What is the fundamental unit for measuring mass in the metric system?