13. If a track athlete runs an 800 m race at a constant speed of 2 m/s, how long will it take her to win the race?
Type A. 6.7 min
your
B. 16 min
answer
C. 26.7 min
D. 400 min

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.