If you are measuring the length of a room, the most appropriate SI unit is the

A) kilometer.
B) meter.
C) centimeter.
D) millimeter.
E) micrometer.


B

Physics & Space Science

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Meanders

A) migrate downstream. B) shorten the stream. C) migrate upstream. D) remain in one place.

Physics & Space Science

In the Compton effect, as the scattering angle increases, the frequency of the X-rays scattered at that angle

A) increases. B) decreases. C) does not change. D) varies randomly.

Physics & Space Science

In a resonating pipe which is open at both ends, there

A) are displacement nodes at each end. B) are displacement antinodes at each end. C) is a displacement node at one end and a displacement antinode at the other end. D) all of the above are possible E) none of the above

Physics & Space Science

By how many newtons does the weight of a 100-kg person change when he goes from sea level to an altitude of 5000 m? (The mean radius of the Earth is 6.38 × 106 m.)

A) 0.6 N B) 1.6 N C) 2.6 N D) 3.6 N E) 5.2 N

Physics & Space Science