Answer Happy

Posted: **Mon May 09, 2022 5:32 pm**

: A What Is The Cost Of Heating A Hot Tub Containing 1475 Kg Of Water From 10 C To 39 C Assuming 75 Efficiency To Acco 1 (49.06 KiB) Viewed 33 times

a) What is the cost of heating a hot tub containing 1475 kg of water from 10°C to 39°C, assuming 75 % efficiency to account for heat transfer to the surroundings? The cost of electricity is 9 cents/kWh. $ b) What current was used by the 230 V AC electric heater, if this took 5 h?