2. A motor with a resistance of 32 is connected to a voltage source. Four amps of current

flows in the circuit. What is the voltage of the source?

What physical features form the boundaries of the United States?

Choose the situation below in which the force applied is the greatest. A) Steve put in 50 J of work moving a box 50 meters. B) Doing 400 J of work, Penny pushed her cat 80 meters.

A current of I = 3.8 A is passing through a conductor with cross sectional area A = 2.5 x 10^-4 m^2. The charge carriers in the conductor, electrons, have a number density n = 1.3 x 10^27 m^-3. (a) Express the drift velocity of electrons through 1.

When you drop a strong magnet through the center of a copper pipe, what happens to the copper piper and the magnet?

What is the build up of electrons on a surface

Protecting his nest, a 600-g peregrine falcon rams a marauding 1.5-kg raven in midair. the falcon is moving at 20.0 m/s, and the raven at 9.00 m/s at the moment of impact.

A carousel has a radius of 1.70 m and a moment of inertia of 110 kg · m2. A girl of mass 44.0 kg is standing at the edge of the carousel, which is rotating with an angular speed of 3.40 rad/s.

A 2kg marble is moving at 3 m/s when it strikes another 4kg marble moving in the opposite direction at - 3 m/s. What will be the velocity of the 4kg marble after the collision of the 2kg marble's new velocity is - 4 m/s.

How long did it take to reload a rifle during the 18th 19 century?

Hot spots in electronic and electric circuits can be detected visually with the use of A. dataloggers. B. thermocouples C. oscilloscopes D. infrared cameras.