The constant resistance of a resistor is 3030 ohms, independent of the temperature. The resistor is made up of an aluminum resistor with resistance R1R1 at 0C0C in series with a carbon resistor with resistance R2R2 at 0C0C. Evaluate R1R1 and R2R2, temperature coefficient for aluminum and carbon are 3.9×10−3C−13.9×10−3C−1 and −0.5 0×10−3C−1−0.50×10−3C−1.​

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.​

you go to your settings preference and in the end youll see sth that says "i want to delete my acc" click on it and u'll acc will be deleted but u have to wait.