PLEASE HELP IM BEGGING ITS NOT EVEN HARD I JUST DIDNT PAY ATTENTION IN CLASS 30 POINTS An electric heater connected to a power supply is operating at 200 Watts. If the current and the voltage to the heater are both doubled, how many joules per second of electrical energy will be converted to heat?

Athermometer is removed from a room where the temperature is 70° f and is taken outside, where the air temperature is 10° f. after one-half minute the thermometer reads 60° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.) ° f how long will it take for the thermometer to reach 30° f? (round your answer to two decimal places.)

Asystem containing an ideal gas at a constant pressure of 1.22×10^5 pa gains 2140 j of heat. during the process, the internal energy of the system increases by 2320 j. what is the change in volume of the gas?

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?