Beats: Two tuning forks have frequencies of 440 and 522 Hz. What is the beat frequency if both are sounding simultaneously?
A. 962 Hz
B. 481 Hz
C. 82 Hz
D. 55 Hz
E. 41 Hz
Answer: C
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Assuming the Earth's orbital angular momentum is quantized, estimate its angular momentum quantum number (l)
A) 3 × 1074 B) 3 × 1044 C) 3 × 1024 D) 3 × 10-34 E) 3 × 10-44
Convert 4.5 × 10-3 to decimal notation
A) 4.500 B) 0.4500 C) 0.0450 D) 0.0045 E) 0.00045
According to the Aristotelian view of motion, which of these would NOT work?
a. An arrow flying away from a bow. b. A stone dropping through water to the creek bed. c. An apple falling from a tree to the ground. d. A person climbing a tree. e. A rocket ship going to the moon.