It takes 56.5 kilojoules of energy to raise the temperature of 150 milliliters of water from 5°c to 95°c. if you
use an electric water heater that is 60% efficient, how many kilojoules of electrical energy will the heater
actually use by the time the water reaches its final temperature?
Answers: 1
Another question on Physics
Physics, 22.06.2019 08:00
Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.
Answers: 3
Physics, 23.06.2019 02:40
An air standard cycle with variable specific heats is executed in a closed system and is composed of the following four processes. 1-2 isentropic compression 100 kpa and 22°c to 600 kpa 2-3 v=constant heat addition to 1500 k 3-4 isentropic expansion to 100 kpa 4-1 p=constant heat rejection to initial state (a) show the cycle on p-v and t-s s (b) calculate the net work output per unit mass (409 kj/kg) (c) determine the thermal efficiency (47.9%)
Answers: 1
You know the right answer?
It takes 56.5 kilojoules of energy to raise the temperature of 150 milliliters of water from 5°c to...
Questions
Mathematics, 15.12.2020 20:20
Mathematics, 15.12.2020 20:20
Mathematics, 15.12.2020 20:20
Mathematics, 15.12.2020 20:20
Computers and Technology, 15.12.2020 20:20
Computers and Technology, 15.12.2020 20:20
Biology, 15.12.2020 20:20
History, 15.12.2020 20:20
Mathematics, 15.12.2020 20:20
Chemistry, 15.12.2020 20:20
