One result of the "dust bowl" was that:

1.california became the most populous state in the union
2.mexican-americans and african-americans took advantage of the opportunity to settle abandoned land
3.big, industrial agricultural cooperatives broke up into smaller units
4.several million people living in the great plains abandoned their farms and moved west

Suppose that a cylindrical tank 6 meters high with a radius of 2 meters is filled to the rim with water. the tank is buried so that the top of the tank is 1 meter below ground level. the space above the tank is not filled with water. calculate how much work needs to be done by a pump to pump the water out of the tank up to ground level. (the water weighs 9,800 newtons per cubic meter.)