A cannonball with a mass of 8.3 kg is fired from a cannon that has a mass of 949.3 kg. The cannonball is fired with a speed of 187.9 m/s, and it takes 0.0 seconds for the cannonball to leave the cannon.

what is the recoil speed?

Which of the following statements is not true about speed? a. speed has no direction. b. speed is a vector quantity. c. speed and position are separate variables. d. speed is measured relative to another object.

A bottle rocket takes off with a = 34.5 m/s2. It fires until it reaches a height of 200 m, then shuts off, and gravity takes over. How much time does it take to reach its maximum height? (Unit = s)

Two things that electrical force depends upon?

Suppose you are an observer standing on the Moon, looking back at Earth. If the moon is in the waxingquarter phase, what phase of the Earth would you see? A. waxing quarter B. full C. new D. waning quarter E. none; the Earth doesn't have phases

Which measurement is a potential difference? A. 115J B. 115V C. 115N D. 115C

Which has the least potential energy

Why does the nucleus of an atom have a positive charge?

Why is the electromagnetic spectrum called a spectrum?

Ariana is accelerating her car at 4.6 m/s^2 it took her 10 seconds to reach this acceleration her starting lost the day was 0 meters per second what was her final velocity

The magnitude of the tidal force between the International Space Station (ISS) and a nearby astronaut on a spacewalk is approximately 2GmMa/r3. In this expression, M is the mass of the Earth, r=6.