Tuning forks #1, #2, and #3 each have slightly different frequencies.When #1 and #2 are sounded together, a beat frequency of 3 Hz results. When #2 and #3 are sounded together, a beat frequency of 5 Hz results. If the frequency of #1 is 100 Hz, which of the following cannot be the frequency of #3?
a. 92 Hz
b. 95 Hz
c. 98 Hz
d. 102 Hz
e. 108 Hz
b
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Spring #1 has spring constant 61.0 N/m. Spring #2 has an unknown spring constant, but when connected in series with Spring #1, the connected springs have an effective spring constant of 20.0 N/m. What is the spring constant for Spring #2?
a. 41.0 N/m b. 81.0 N/m c. 15.1 N/m d. 29.8 N/m e. 71.0 N/m
Calculate an estimate of the range of a hypothetical force with the proton as the virtual exchange particle. (c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s, mproton = 1.67 × 10-27 kg)
A) 6.7 × 10-25 m B) 2.1 × 10-16 m C) 6.0 × 10-8 m D) 1.5 × 10-15 m
What are the four materials most often involved in the making of sedimentary rocks?
A charged capacitor is connected to an inductor to form an LC circuit with a frequency of oscillation f = 1.6 Hz. At time t = 0 the capacitor is fully charged
At a given instant later the charge on the capacitor is measured to be Q = 3 ?C and the current in the circuit is equal to 75 ?A. What is the maximum charge of the capacitor? A) 6 ?C B) 10 ?C C) 8 ?C D) 2 ?C E) 4 ?C