Suppose you use the Southern Cross to determine that the south celestial pole appears 40 degrees above your horizon. Then you must be located at
A) latitude 40 degrees north.
B) latitude 50 degrees south.
C) latitude 40 degrees south.
D) longitude 40 degrees.
C
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A transverse periodic wave is represented by the equation y(x, t) = 2.50 cm cos(2,500 rad/s t - 15.0
What is the frequency of the vibration of the wave?
A. 490 Hz B. 467 Hz C. 422 Hz D. 398 Hz E. 302 Hz
A young blue star moving along a circular orbit in the disk is a
A. Pop I star. B. Pop II star. C. Pop III star. D. Pop V star.
The maximum value of the electric field in an electromagnetic wave is 2.0 V/m
What is the maximum value of the magnetic field in that wave? (c = 3.0 × 108 m/s) A) 6.7 ?T B) 6.7 pT C) 6.7 mT D) 6.7 nT E) 6.7 T
Balance the following chemical equation
________ N2 + ________ H2 ? ________ NH3 A) 1, 3, 2 B) 1, 2, 3 C) 3, 2, 1 D) 2, 6, 4 E) 1/2, 3/2, 1