9. A gecko crawls vertically up and down a wall. Its motion is shown on the following graph of vertical position y vs. time t. What is the average velocity of the gecko between the times t=0 and t = 7s? 5 points Captionless Image 1.0 m/s .57 m/s -1.0 m/s -.57 m/s

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 which of the following cases is work being done on an object? question 2 options: pulling a trailer up a hill carrying a box down a corridor suspending a heavy weight with a strong chain pushing against a locked door

The two required components for a generator