One of the harmonics of a string fixed at both ends has a frequency of 52.2 Hz and the next higher harmonic has a frequency of 60.9 Hz. What is the fundamental frequency of the string?

A) 26.1 Hz
B) 8.7 Hz
C) 4.35 Hz
D) 30.4 Hz
E) 17.4 Hz


B

Physics & Space Science

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The parallax of two stars is reported in a star catalog. Which star is farther?

A) The one with the larger amount of parallax B) You can't tell, since parallax has nothing to do with distance. C) The one with the smaller amount of parallax

Physics & Space Science

According to the consensus among those scientists who have studied the question, what is the scientific status of creationism today?

A) Although there is a lot of evidence against it, creationism is plausible on the basis of the principles of many scientific fields. B) Although it disagrees with the principles of many scientific fields, there is a lot of real scientific evidence for creationism. C) It disagrees with the principles of many scientific fields, and there is a lot of scientific evidence against it. D) Creationism is plausible on the basis of the principles of many scientific fields, and here is also real scientific evidence for it, which is why most scientists believe that creationism has real validity. E) Although creationism is plausible on the basis of the principles of many scientific fields, and although there is also real scientific evidence for it, most scientists still will not accept creationism because it seems too unconventional or "kooky."

Physics & Space Science

Electrons moving in a strong magnetic field emit ____________________ radiation

Fill in the blank(s) with correct word

Physics & Space Science

Energy Conservation With Conservative Forces: Two frisky otters slide down frictionless hillsides of the same height but different slopes. The slope of the hill of otter 1 is 30°, while the slope of the hill of otter 2 is 60°. If both start from rest, which otter is moving faster when she reaches the bottom of her hill?

A. Otter 1 is moving faster. B. Otter 2 is moving faster. C. The heavier otter is moving faster, no matter which hill she used. D. Both otters have the same speed at the bottom. E. The otter that took the shorter time is moving faster.

Physics & Space Science