A positron is a particle that has the same mass but opposite charge of an electron. An electron and a positron are shot directly toward each other by a particle accelerator. They start very far from each other, each with a kinetic energy of

Complete Question

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Explanation:

From the question we are told that:

Kinetic energy

Generally, the equation for Total Energy is mathematically given by

Where

Mass of an electron in MeV

And

Electron Charge

Therefore

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.​

co2reflects heat radiation back to earth buning coal and oil emits co2 globe warms