A grapefruit falls from a tree and hits the ground 0.80 s later. A. How far did the grapefruit drop?
Express your answer to two significant figures and include the appropriate units.

B. What was its speed when it hit the ground?
Express your answer to two significant figures and include the appropriate units.

The summit of chimborazo, in ecuador, which is at a distance of about 6,384 km from the earth's center. the bottom of the mariana trench, in the western pacific ocean, which is nearly 6,370 km from the center of the earth. on the surface of earth on the equator line.

Moon effect. some people believe that the moon controls their activities. if the moon moves from being directly on the opposite side of earth from you to being directly overhead, by what percentage does (a) the moon's gravitational pull on you increase and (b) your weight (as measured on a scale) decrease? assume that the earth–moon (center-to-center) distance is 3.82 × 10^8 m, earth's radius is 6.37 × 10^6 m, moon's mass is 7.36 × 10^22 kg, and earth's mass is 5.98 × 10^24 kg.

In order for the bug to fly through the air a force has to push the bug forward. identify this force. how does the bug produce