A68.2 kg base runner begins his slide into second base while moving at a speed of 4.33 m/s. he slides so that his speed is zero just as he reaches the base. the acceleration of gravity is 9.8 m/s 2 . what is the magnitude of the mechanical energy lost due to friction acting on the runner?

Explanation:

We know that:

where is the initial energy, is the final energy and is the energy lost due to friction.

so:

Where M is the mass and V is the velocity of the runner, so:

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.​