The free-fall acceleration at the surface of planet Alpha is 30 m/s2. What is the free- fall acceleration on planet Beta if it has twice the mass and twice the radius of planet
Alpha?

The horse latitudes-high-pressure zones about 30 degrees north and 30 degrees south of the equator.-warm air traveling away from the equator cools and sinks-weather tends to be clear and drythe doldrums-low-pressure near equator-air rises and spreads out toward the poles-rising moist air produces clouds and heavy rainthe westerlies-blow from the west-move from the horse latitudes toward the poles.-bring storms across much of the united statesthe tradewinds-blow from the east-move from the horse latitudes toward the equator  -strong, steady winds

The answer is b.the gaseous state is electrically positive, while the plasma state is electrically negative. 

Ithink the answer is c but then again i'm probably wrong