What can exist in the same place at the same time?

A) two large boulders
B) two tiny boulders
C) two waves
D) all of the above
E) none of the above


Answer: C

Physics & Space Science

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When throwing a ball straight up, which of the following is true about its velocity and acceleration at the highest point in its path?

A. both v = 0 and a = 0 B. v ? 0, a = 0 C. v = 0, a ? 0 D. v ? 0, a ? 0 E. not really sure

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A smooth distribution of radiation across a broad range of wavelengths is referred to as

A) an emission line spectrum B) an absorption line spectrum C) a continuous spectrum D) a broad spectrum

Physics & Space Science

The altimeter in an aircraft is an aneroid barometer

a. True b. False Indicate whether the statement is true or false

Physics & Space Science

A 1000-kg automobile moving with a speed of 24 m/s collides with a 500-kg car initially at rest. If the two stick together, what is the velocity (in m/s) of the two cars after the collision relative to an automobile moving in the same direction at 15 m/s?

a. 14 b. 16 c. 24 d. 48 e. 1.0

Physics & Space Science