Explain how friction keeps a nail in place in a block of wood. If you try pull out the nail which way does friction act?

If an object undergoes a change in momentum of 10 kg m/s in 3 seconds what is the force?

Inside a stereo speaker, you will find two permanent magnets: one on the cone and one near the cone. True of false?

The coil in an AC generator consists of 21 turns of wire, each of area A = 0.12 m2, and the total resistance of the wire is 24 Ohms. The coil rotates in a 0.5 Tesla magnetic field at a constant frequency of 135 Hz.

When two or more waves are at the same place at the same time, which phenomenon occurs? Reflection Refraction Dispersion Interference Polarization

A 1423 kg car is traveling down the road at 105.0 km/h. while traveling at this rate of speed, what is the kinetic energy of this vehicle in kilojoules?

11. Which of the following best explains velocity? A. The direction of an object in motion B. Only the change of direction of an object in motion C. The speed and direction of an object in motion D. The speed of an object in motion

Using 6400 km as the radius of Earth, calculate how high above Earth's surface you would have to be in order to weigh 1/16th of your current weight. Show all work leading to your answer OR describe your solution using 3 - 4 complete sentences.

Which of these could occur if a switch is closed? A. A light bulb will light up. B. A hair dryer will turn off. C. A computer will shut down. D. B and C

When you throw a ball the work you do to accelerate it equals the kinetic energy the ball gains?

Old-fashioned heating systems sent steam into radiators in each room of a house. in the radiators, the steam condensed back to water. analyze this process and explain how it heated a room.