A car accelerates from 10m/s to 20m/s over a distance of 80m. What is its acceleration?

If an object has a large momentum, how easy is it to stop, and why?

Why can't the efficiency of a heat engine be 100%?

A 42 Watt light bulb is connected to a 12 volt source of potential

How long will it take a car to accelerate from 15.2 to 23.5 m/s if the car has an average acceleration of 3.2 m/s?

Radium-226 is unstable. What is the process that allows the nucleus of radium-226 to become more stable? Question 14 options: A. ionic bonding B. radioactive decay C. hydrogen bonding D. covalent bonding E. nuclear fusion

If the moon did not have an atmosphere what would happen to it

a 2.0 kg mass moving to the east at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0 kg mass. how much kinetic energy is lost during

How did people years ago find out which side of a magnet was north and which was south?

Which change occurs when an atom undergoes decay?

A wave is moving toward shore with a velocity of 18.0 m/s. If its period is 4 s, what is its wavelength? Explain your answer.