5) In a lab, a student is asked to roll a marble down a ramp from a height that will give it a velocity of 2.0 m/s at
ramp. From what height should the marble be released?
A)
10 cm
B)
20 cm
0
40 cm
D
The mass of the marble needs to be known to find the answer.

like poles repel so keep pushing north to north and repels funny to see this

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.

a 2,000 calorie based diet.