Two girls, A and B ran an 800 m race. The figure below shows how the distance changed with time.
800
700-
600
500
istance
400
300
200
100
0
20
60
40
120
140
160
80 100
Time in s
Compare the motion of runners A and B.
Include data from the figure above.

Ahot-air balloonist, rising vertically with a constant speed of 5.00 m/s releases a sandbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. compute the velocity of the sandbag at 0.250 s after its release.

How do the kidneys affect homeostasis

Which of the following is the main energy source for the sun? a. fission of hydrogen b. fusion of hydrogen c. fusion of helium d. fission of iron