A ball is tossed vertically upward with a speed of 18 m/s from the ground. (a) How long does it take the ball to reach the top of its trajectory?

(b) What was the height of the ball at the top of its trajectory?

How many neutrons does plutonium -196 with an atomic number of 78.

Using gravity, an elephant can pull a mouse towards it from the ground. true or false explain why. will give brainliest if answered fast and the best explanation

The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .