The parallel that is a great circle is the ______________
Fill in the blank(s) with correct word
equator
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The voltage supplied to an ac circuit is given by v = 120 sin(60t). What are the rms voltage and the frequency?
A. 120 V, 60 Hz B. 120 V, 380 Hz C. 170 V, 9.5 Hz D. 85 V, 9.5 Hz E. 240 V, 30 Hz
A monochromatic (single frequency, single wavelength) light ray in air (n = 1) enters a glass prism (n = 1.5). In the glass prism
A. both the frequency and the wavelength are the same as in air B. the frequency is the same, but the wavelength is greater than in air. C. the frequency is the same, but the wavelength is smaller than in air. D. the wavelength is the same, but the frequency is greater than in air. E. the wavelength is the same, but the frequency is smaller than in air.
A 10-kg rock and 20-kg rock are dropped from the same height and experience no significant air resistance. If it takes the 20-kg rock a time T to reach the ground, what time will it take the 10-kg rock to reach the ground?
A) 4T B) T/2 C) T D) 2T E) T/4
A proton is accelerated from rest through 500 V. It enters a magnetic field of 0.30 T oriented perpendicular to its direction of motion. Determine the radius of the path it follows
A) 1.1 mm B) 1.1 cm C) 11 cm D) 1.1 m E) 11 m