Engineering, 06.03.2020 23:33 jtroutt74
At steady-state, a porch light with a 100 W incandescent bulb produces 97.8 W of heat energy, the rest of its output being visible light. a) What is the efficiency of the light bulb? (use the definition from the class notes)b) How much energy does the bulb consume annually if it is on for an average of 8 hours per day (in kWh)?c) What is the annual cost of the energy at a rate of $0.08/kWh?
Answers: 1
Other questions on the subject: Engineering
Engineering, 03.07.2019 15:10, breannaasmith1122
Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.
Answers: 1
Engineering, 04.07.2019 18:10, danksans7011
The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false
Answers: 1
Engineering, 04.07.2019 18:10, qwertylol12345
Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.
Answers: 2
You know the right answer?
At steady-state, a porch light with a 100 W incandescent bulb produces 97.8 W of heat energy, the re...
Questions in other subjects:
Mathematics, 03.03.2020 23:40
History, 03.03.2020 23:41
