Which of the following are voltage sources?

a. ohm's law

b. resistance

c. electric charge

d. batteries and wall sockets

The north pole of one magnet and thr south pole of another magnet will do what

You have just collected data and discover that the stopwatch you uesd is not working properly. which of the following is the best coures of action? a. repeat the experiment using a stopwach that functions correctly. b.

A plane is traveling at north east direction, 30° regard to the north. if not wind it could travel at 60 m/s but it results that there is wind going to the east at 20 m/s. determine the resulting speed of the plane regard to earth.

List all the planets in the solar system and their features

A car making a 111-km journey travels 41 km/h for the first 55.5 km. how fast must it go during the second 55.5 km to average 51 km/h?

For a cars speedometer what is the calculated speed over an entire trip

How does gravity influence our annual calendar?

A 0.500 kg block is sitting on a horizontal, frictionless surface. The block is connected to a horizontal spring with a force constant of 124 N/m. The other end of the horizontal spring rests against a wall. When a 100.

The velocity of waves in a ripple tank of a particular depth of water is 20 centimeters per second, and standing waves are produced with nodes spaced 2.0 centimeters apart. what is the frequency of the wave generator?

If a wave is generated in a Slinky and the wave hits a wall, the reflected wave will be