Mary passes Mike from behind while bicycling. As she passes him,
A) the two have different speeds and different velocities.
B) the two have the same speeds and the same velocities.
C) Mike turns into a hippopotamus.
D) the two have the same speeds but different velocities.
E) the two have different speeds but the same velocities.
A
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A. chemical composition B. how fast the objects are moving C. whether a gas or solid or combination, due to the type of spectrum D. All of these choices are correct.
A pickup truck moves at 25 m/s toward the east. Ahmed is standing in the back and throws a baseball in what to him is the southwest direction at 28 m/s (with respect to the truck)
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Which of the following is the correct equation for the momentum of a photon?
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Exhibit 11-1
Two birds of prey hurtling after the same mouse collide in mid-air and grab each other with their talons. Each 250-g bird is flying at 30 m/s at a 60° angle to the ground.
?
?
Use this exhibit to answer the following question(s).
Refer to . What is the magnitude of their velocity, in m/s, immediately after the collision?
a.
0
b.
13
c.
15
d.
26
e.
30