At a carnival game, two balls, identical in mass and radius, are made of steel and of rubber. They are offered as a means of knocking over a bowling pin by throwing them at the pin. If they are thrown with the same speed and hit the same spot on the bowling pin, which is more likely to knock the pin over?
A. The steel ball
B. Without knowing more information this cannot be answered.
C. The clay ball
D. Both are equally likely since they have the same momentum
A. The steel ball
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The tidal pull of the Moon is an example of a differential force, as the near and far sides of the Earth do not experience the same gravitational pull of the Moon
Indicate whether the statement is true or false
Exhibit 18-1The figure below shows wave crests after a stone is thrown into a pond.
Use this exhibit to answer the following question(s).
Refer to Exhibit 18-1. The phase difference in radians between points A and B is
A.
B.
.C.
.D.
E.
.The slow ________ of Mercury was first determined using radar signals sent from Earth
Fill in the blank(s) with correct word
If there is no dark matter in the Milky Way Galaxy, what is the best alternative explanation for the observations?
A) We are not measuring the orbital velocities of atomic clouds and stars properly. B) We are not measuring the distances to atomic clouds and stars properly. C) We are not attributing enough mass to the visible or "bright" matter. D) We are not observing all the visible or "bright" matter in the galaxy. E) Our understanding of gravity is not correct for galaxy-size scales.