it is estimated that 7x10kg of water pours over the Niagra falls every second. If the falls are 50m high, and if all the enrgy of the falling water could be harnessed, what power would be available?

Water is pumped through a pipe of diameter 15.0cm from the Colorado River up to Grand Canyon Village on the rim of the canyon. The river is at 564m elevation and the village is at 2 096 in(a) At What minimum pressure must the water be pumped to arrive at the village? b) If 4500 m3 are pumped per day what is the speed of the water in the pipe? (c) What additional pressure is necessary to deliver this flow? Note you may assume the free- fall acceleration and the density of air are constant over the given range of elevations.

Strictly don't use Artificial intelligence tools.

A person in a boat floating in a small pond throws an anchor overboard. What happens to the level of the pond? (a) It rises. (b) It falls. (c) It remains the same.