Physics, 14.02.2020 19:32 jailynleffel8
A homeowner is considering these heating systems for heating his house: Electric resistance heating with $0.12/kWh and 1 kWh = 3600 kJ, gas heating with $1.34/therm and 1 therm = 105,500 kJ, and oil heating with $2.3/gal and 1 gal of oil = 138,500 kJ. Assuming efficiencies of 100 percent for the electric furnace and 87 percent for the gas and oil furnaces, determine the heating system with the lowest energy cost.
Answers: 3
Physics, 21.06.2019 23:30
Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?
Answers: 3
Physics, 22.06.2019 10:00
Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.
Answers: 2
Physics, 22.06.2019 11:00
Which of the following are guidelines to follow for obtaining accurate observations
Answers: 2
A homeowner is considering these heating systems for heating his house: Electric resistance heating...
Mathematics, 01.12.2021 17:30
Mathematics, 01.12.2021 17:30
English, 01.12.2021 17:30
Mathematics, 01.12.2021 17:30
Physics, 01.12.2021 17:30
Mathematics, 01.12.2021 17:30
Mathematics, 01.12.2021 17:30
Business, 01.12.2021 17:30
History, 01.12.2021 17:30
Chemistry, 01.12.2021 17:30
Spanish, 01.12.2021 17:30
Chemistry, 01.12.2021 17:30