A 66.8 kg ice skater moving to the right with a velocity of 2.10 m/s throws a 0.119 kg snowball to the right with a velocity of 37.9 m/s relative to the ground. What is the velocity of the ice skater after throwing the snowball

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

Because they're in different places for this the temperature varies.

What kind of enegia produces the mixture of bicarbonate and vinegar  chemical producetion