At 96° F the saturation density of air is 0.04 kg/m3 . If the weather report says the relative humidity is 90 % when the temperature is 96°F, the humidity is
a. 10 %
b. 0.9
c. 0.004 kg/m3
d. 0.036 kg/m3
e. 0.04 kg/m3
D
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The ____________________ of the Sun is not visible during a total solar eclipse
Fill in the blank(s) with correct word
A heavy block at rest is suspended by a vertical rope. When the block is accelerated upward by the rope, the rope tension
A) is less than its weight. B) equals its weight. C) is greater than its weight.
For a system undergoing an adiabatic process,
a. 
b. 
c. 
d. 
e. 
In 1994, fragments of Comet P/Shoemaker-Levy 9 collided with Jupiter. Assume that these fragments came from very very far away with no initial speed, and neglect the effect of the sun
What was their speed when they neared Jupiter's surface at a distance of 71.4 × 106 m from its center? Jupiter has a mass of 1.90 × 1027 kg, and G = 6.67 × 10-11 N ? m2/kg2. A) 10,400 m/s B) 11,200 m/s C) 35,500 m/s D) 42,100 m/s E) 59,600 m/s