Velocity also includes a direction
the acceleration of gravity on earth is approximately 10m/s2 if you drops rock from a tall building, about how fast will it be falling after 3 seconds?
30m/s
Momentum is defined as
Mass time's velocity
suppose you live on the moon. Which of the following would be true?
Your weight would be less than your weight on Earth, but your mass would be the same as it is on Earth.
In which of the following would you feel weightless?
While falling from a roof
which of the following statements is not one of Newton's laws of motion?
What goes up most come down
what do we mean by the orbital energy of an orbiting object
Orbital energy is the sum …show more content…
What must have happened? Saturn must have lost a tiny bit of its orbital energy.
Suppose that a lone asteroid happens to be passing Jupiter on a unbound orbit ( well above Jupiter's atmosphere and far from all of Jupiter moons.) Which of the following statements would be true? The asteroid orbit around Jupiter would not change, and it would go out on the same unbound orbit that it came in on.
Which of the following best describes the origin of the ocean tides on Earth? Tides are caused but the difference in the force of gravity excreted by the Moon across the sphere of the earth
At which lunar phase(s) are tides most pronounced (for example, the highest high tides)? Both new and full
Which of the following best explains why the Moon's orbital period and rotation period are the same? The Moon once rotated faster, but tidal friction slowed the rotation period until it matched the orbital period
Suppose the Moon's orbit were unchanged, but it rotated faster ( meaning it did not have synchronous rotation). Which of the following would be true? We would no longer always see nearly the same face of the