The Sun is rising in the east and will be on your meridian in 2 hours. What time is it?
A) 2 A.M.
B) 2 P.M.
C) 10 A.M.
D) 10 P.M.
E) noon
C
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In an RLC series circuit, which of the following statements is true?
A. The current is in phase with the voltage across the inductor. B. The current is in phase with the voltage across the resistor. C. The current is in phase with the voltage across the capacitor. D. None of the choices are true.
An underwater scuba diver sees the Sun at an apparent angle of 45.0° from the vertical. How far is the sun above the horizon? (nwater = 1.333)
a. 19.5° c. 48.2° b. 68.0° d. 41.8°
A coil of 57. turns of wire has a diameter of 9.5 cm and carries 7.2 Amperes
(a) How large is the magnetic field, in Tesla, at the center of the loop? (b) How many Gauss is that? (c) If the same length of wire made a coil with twice the original diameter, how large is the magnetic field now?
Alien astronomers are using the radial-velocity method to look for planets around our Sun. Which planet are they most likely to detect first?
A. Jupiter B. Neptune C. Mercury D. Earth