To turn 50 grams of boiling water to steam requires
A) 50 calories.
B) 500 calories
C) 540 calories.
D) more than 540 calories.
E) none of the above
Answer: D
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In a resonating pipe that 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) None of the above are possible.
When a beam of light, originally traveling in air, enters a piece of glass having an index of refraction of 3/2, its wavelength
A) increases by a factor of 3/2. B) is reduced to 2/3 its original value. C) is unaffected.
How much force acts on one surface of a rectangular bedroom wall that is 2.20 m by 3.20 m when atmospheric pressure is 1.00 × 105 N/m2?
A) 3.52 × 105 N B) 1.78 × 105 N C) 1.45 × 105 N D) 6.88 × 104 N E) 7.04 × 105 N
If it is 1 p.m. in Miami, Florida, what time is it in Eugene, Oregon?
What will be an ideal response?