9. In a cloud formation, water vapor turns into water droplets which get bigger
ID: 2303932 • Letter: 9
Question
9. In a cloud formation, water vapor turns into water droplets which get bigger and bigger until it which get ill cause the tempera A. get cooler. B. be completely unaffected C. get warmer D. The question cannot be answered with the given information. E. follow a Gaussian curve 10. I fire a bullet from a gun. Which receives the greatest impulse? A. The bullet and the gun receive the same impulse. B. It depends on the mass of the C. The gun receives the greatest impulse. D. It depends on the caliber of the bullet. E. The bullet receives the greatest impulse. gun compared to the mass of the bullet. II. Two vector quantities, A and B, are added to produce the vector A + B. If the vector A has a magnitude of 47 units and B has a magnitude of 21 units, which of the following ehoices is possible for the magnitude of A+ B? A. 16 B. 22 C. 84 D. 52 E. 99 12. The absolute temperature of a gas is directly proportional to which of the following properties (when taken as an average) of the molecules of that gas? A. density B. pressure C. kinetic energy D. composition E. impulse 13. The Earth moves about the sun in an elliptical orbit. As the Earth moves closer to the sun, whi the following best describes the Earth-sun system's moment of inertia? A. it is zero B. it increases C. it remains constant D. it decreases E. none of the above choices are validExplanation / Answer
9. c get warmer ( the effect causes an increase in the temperatire of air)
10. a the bullet and the gun receive the same impulse
11. d. 52 ( sqrt{(47 ^2) + (21 ^2)}
12. c kinetic energy
13. d. decreases (i= sqrt (m r^2), as earth moves closer r decreases m is constant
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