![subject](/tpl/images/cats/fizika.png)
Physics, 06.02.2021 21:10 madisontrosclair2
Furnace oil has a heat of combustion of 44 MJ/kg. assuming that 70% of the heat is useful, how many kilograms of oil are required to raise the temperature of 2000 kg of water from 20 degree Celsius to 99 degree celsius
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 06:20
Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.
Answers: 1
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 17:20
Select all the correct answers.which two statements are true? a moving magnetic field creates an electric field.a constant magnetic field creates an electric field.a constant electric field creates a magnetic field.a moving electric field creates a magnetic field.resetnext
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 04:31
The radioactive isotope of lead, pb-209, decays at a rate proportional to the amount present at time t and has a half-life of 3.3 hours. if 1 gram of this isotope is present initially, how long will it take for 80% of the lead to decay? (round your answer to two decimal places.)
Answers: 2
You know the right answer?
Furnace oil has a heat of combustion of 44 MJ/kg. assuming that 70% of the heat is useful, how many...
Questions
![question](/tpl/images/cats/fizika.png)
Physics, 14.12.2021 03:10
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 14.12.2021 03:10
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/ekonomika.png)
Business, 14.12.2021 03:10
![question](/tpl/images/cats/mat.png)
Mathematics, 14.12.2021 03:10
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 14.12.2021 03:10
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 14.12.2021 03:10
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 14.12.2021 03:10
![question](/tpl/images/cats/mat.png)
Mathematics, 14.12.2021 03:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 14.12.2021 03:10
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/en.png)
English, 14.12.2021 03:10