Water is pumped through a pipe of diameter 15.0 cm, from the colorado river up to grand canyon village, located on the rim of the canyon. the river is at an elevation of 564 m, and the village is at an elevation of 2096 m. what is the minimum pressure at which the water must be pumped if it is to arrive at the village?

What is the speed of an object at a given moment?

Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.

Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earth’s magnetic field, which is 0.50 g. is this value cause for worry?