Which of the following planets has the least substantial atmosphere?
A) Venus
B) Earth
C) Mars
D) Neptune
E) Mercury
E) Mercury
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A "grand-design" galaxy contains clear spiral arms with few spurs
a. True b. False Indicate whether the statement is true or false
The circuit power factor of an RC circuit is 0.620. The rms value of the voltage applied to this signal is 120 V and the impedance is 200 ?. What is the average power of this circuit?
A) 44.6 W B) 89.2 W C) 60.0 W D) 0.620 W E) 124 W
Velma is in a train headed north past Mort at 30 m/s. Velma has a slingshot that can shoot pebbles at 40 m/s. Velma shoots a pebble toward the rear of the train. Mort observes the pebble's velocity to be
A) 70 m/s north. B) 70 m/s south. C) 40 m/s south. D) 10 m/s south. E) 10 m/s north.
A ideal gas constant volume gas thermometer has pressure 2.00 atm at the triple point of water. What is the pressure when the temperature in the thermometer is 500°C?
A) 3.66 atm B) 1.63 atm C) 5.65 atm D) 5.98 atm E) 4.23 atm