(a) how much heat transfer is required to raise the temperature of a 0.750-kg aluminum pot containing 2.50 kg of water from 30.0ºc to the boiling point and then boil away 0.750 kg of water? (b) how long does this take if the rate of heat transfer is 500 w 1 watt = 1 joule/second (1 w = 1 j/s)?

Heat required to raise the temperature is given by formula

here

now here first temperature of water and aluminium container raised to 100 degree C then water is boiled away.

heat is calculated by formula

PART b)

If power supplied is 500 W

then time taken to give such amount of heat is

weather forecasts are done by collecting data about the current state of the atmosphere mainly the temperature, humidity and wind and using meteorology, to determine the atmosphere that evolves over time. the h and l mean the high and low pressure. the red strip is a warm front. the blue strip is a cold front. the blue and red strip is a stationary front. the purple strip is a occluded front.

explanation:

i would think it's food chain