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
C
You might also like to view...
Free Fall: To determine the height of a bridge above the water, a person drops a stone and measures the time it takes for it to hit the water. If the time is 2.3 s, what is the height of the bridge? Neglect air resistance.
A. 10 m B. 14 m C. 26 m D. 32 m E. 52 m
Which two processes can generate energy to help a star or gas cloud maintain its internal thermal pressure?
A) nuclear fusion and gravitational contraction B) nuclear fusion and nuclear fission C) nuclear fusion and supernova D) nuclear fission and supernova
Why is an umbrella in danger of being turned inside out on a windy day?
What will be an ideal response?
A nichrome wire and an aluminum wire, each with the same initial resistance, have the same change in resistance when heated separately. (?Al = 2.82 × 10^?8 ? / m; ?Al = 3.9 × 10^?3 / °C; ?nichrome = 1.50 × 10^?6 ? / m; ?nichrome = 0.40 × 10^?3 / °C.) The ratio of the temperature change of the nichrome wire to the temperature change of the aluminum wire is
a. 0.019. b. 0.10. c. 0.18. d. 9.8. e. 53.