an athlete swims the length L of a pool in a time t1, and make the return trip to the starting position in a time t2. if they are swimming initially in the positive x-direction, determine their average velocities symbolically in (a) at the first half of the swim, (b) the second half of the swim and (c) the round trip. (d) what is their average speed for the round trip?

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

Ibelieve your answer is b.hope this : )