An observer located at Earth's North Pole (90°N
latitude) would observe that all of the stars
a) move eastward across the sky.
b) rise in the east and set in the west.
c) move in concentric circles about the North Star.
d) are completely stationary in the sky.
c
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Conversion of Units: Your car gets 34.7 mi/gal on a vacation trip in the U.S. If you were figuring your mileage in Europe, how many km/L did it get? (3.79 L = 1.00 gal; 1.00 mi = 1.61 km)
A. 14.7 km/L B. 9.16 km/L C. 55.9 km/L D. 32.4 km/L
Europa may have a subsurface ocean of liquid water due to
A) the insulating properties of its icy surface B) tidal heating from Jupiter and the other Galilean moons C) internal heat left over from its formation D) tidal heating from the Sun
Astronomers have not yet been able to detect planets outside our solar system
Indicate whether the statement is true or false
A planar loop consisting of four turns of wire, each of which encloses 200 cm2, is oriented perpendicularly to a magnetic field that increases uniformly in magnitude from 10 mT to 25 mT in a time of 5.0 ms. What is the resulting induced current in the coil if the resistance of the coil is 5.0 ??
a. 60 mA b. 12 mA c. 0.24 mA d. 48 mA e. 6.0 mA