The moons of Uranus have been named after ____
a. Roman gods
b. Greek goddesses
c. characters of Shakespearean plays
d. characters of Tennessee Williams' plays
e. the Romanoff family children's names
c
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An electric field perpendicular to a magnetic field is used as a velocity selector for Li+ions, selecting the velocity v1. Next, Li++ions are sent through the same velocity selector, selecting velocity v2. If neither the electric nor magnetic fields have changed between the two processes, how do v1 and v2 compare?
a. 
b. 
c. 
d. 
e. 
What is the result of 1.58 ÷ 3.793?
A) 4.1656 × 10-1 B) 4.166 × 10-1 C) 4.17 × 10-1 D) 4.2 × 10-1 E) 4 × 10-1
In cloud formation, water vapor turns into water droplets which get bigger and bigger until it rains. This will cause the temperature of the air in the clouds to
a. get warmer. b. get cooler. c. will not affect the temperature of the air in the clouds. d. There is no air in clouds.
Using a camera with a fixed focal length lens, how will increasing the f-number affect the depth of focus and the intensity of the light reaching the ccd (or film)?
a. The depth of focus will decrease but the intensity of light reaching the ccd will increase. b. The depth of focus will increase as will the intensity of light reaching the ccd. c. The depth of focus will increase but the intensity of light reaching the ccd will decrease. d. The depth of focus will decrease as will the intensity of light reaching the ccd.