A water fountain jet shoots short spurts of water over a walkway. The water spurts reach a maximum height, then come down into a pond of water on the other side of the walkway. The height above the jet, h, of a spurt of water t seconds after leaving the jet can be found by the function h(t)equalsminus16tsquaredplus16t. Find the time it takes for the spurt of water to return to the jet's height; that is, when h(t)equals0.

The spurt of water takes 1 second to return to the jet's height.

Explanation:

The height above the jet, h, of a spurt of water t seconds after leaving the jet can be given by the function as follows :

.......(1)

We need to find the time it takes for the spurt of water to return to the jet's height i.e. when h(t) = 0

Equation (1) becomes :

So, the spurt of water takes 1 second to return to the jet's height.

explanation:

earth's surface is mainly heated by the absorption of infrared radiation from the sun.

evaporation occurs because molecules in liquid water are warmed ( usually by the sun) and vibrate quicker, becoming less dense and rise.

condensation occurs because molecules in water vapor are cooled and therefore vibrate more slowly thus becoming more dense and eventually fall to earth.

lines of equal barometric pressure on a weather map are called: isobars : lines of equal temp on a weather map are called: isotherms.​