Juan is comparing the brightness of two lightbulbs. Which SI unit should he use?

a. Kelvin

b. candela

c. mole

d. meter a or b

Which statement about ammeters and voltmeters is true? A. Current and voltage are the same throughout a circuit so where you place the ammeter and voltmeter doesn't matter. B.

A golf ball of mass m = 0.21 kg is dropped from a height h. It interacts with the floor for t = 0.115 s, and applies a force of F = 16.5 N to the floor when it elastically collides with it.

A block with mass ma = 14.0 kg on a smooth horizontal surface is connected by a thin cord that passes over a pulley to a second block with mass mb = 6.0 kg which hangs vertically. determine the magnitude of the acceleration of the system.

Which law can be used to calculate the number of moles of a contained gas?

Assuming that all cars have equal speeds, which car has the acceleration of the greatest magnitude, and which one has the acceleration of the least magnitude?

What does a hurricane hunter do

Why is fluorine special in terms of electronegativity?

The airbag inflates and deflates quickly so

Two conducting spheres are each given a charge Q. The radius of the larger sphere is three times greater than that of the smaller sphere.

A solenoid with a ferromagnetic core is