Suppose the date is June 21 and the Sun never sets, just touching your northern horizon at midnight. Where are you?
A) the equator
B) the Tropic of Cancer (latitude 23-1/2°N)
C) the Tropic of Capricorn (latitude 23-1/2°S)
D) the Arctic Circle (latitude 66-1/2°N)
E) the Antarctic Circle (latitude 66-1/2°S)
D) the Arctic Circle (latitude 66-1/2°N)
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The Sun crosses the celestial equator going southward at the point called the _____
A) vernal equinox B) winter solstice C) summer solstice D) autumnal equinox
A circus performer stretches a tightrope between two towers. He strikes one end of the rope and sends a wave along it toward the other tower. He notes that it takes 0.8 s for the wave to travel the 20 m to the opposite tower. If one meter of the rope has a mass of 0.35 kg, find the tension in the tightrope.
What will be an ideal response?
As a swimmer dives deeper and deeper, strictly speaking, the volume of water displaced by the swimmer actually
A) decreases. B) increases. C) remains unchanged but pressure on her increases D) none of the above
Do you think that this experiment confirms the validity of the series resistor equation used in Procedures 2(f), 3(f), and 4(f)?