subject
Physics, 04.12.2020 16:30 angeline2004

Визначте ККД двигуна трактора (у відсотках), яким для виконання роботи 1,89∙106 Дж знадобилося 1,5 кг палива з питомою теплотою згоряння 4,2∙106 Дж/кг.

ansver
Answers: 3

Another question on Physics

question
Physics, 21.06.2019 23:30
If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)
Answers: 1
question
Physics, 22.06.2019 02:50
Steam is generated in a boiler of a cogeneration plant at 10 mpa and 450°c at a steady rate of 5 kg/s. in normal operation, steam expands in a turbine to a pressure of 0.5 mpa and is then routed to the process heater, where it supplies the process heat. steam leaves the process heater as a saturated liquid and is pumped to the boiler pressure. in this mode, no steam passes through a condenser, which operates at 20 kpa. (a) determine the power produced in the turbine and the rate at which process heat is supplied in this mode. (b) determine the power produced in the turbine and the rate of process heat supplied if only 60 percent of the steam is routed to the process heater and the remainder is expanded to the condenser pressure. (3.32 mw; 9.69 mw; 4.25 mw; 5.82 mw)
Answers: 3
question
Physics, 22.06.2019 04:50
The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.
Answers: 2
question
Physics, 22.06.2019 06:30
How much force was applied to an object if was moved 2 meters and the work done on the object was 8 joules? a. 0.25 n b. 4 n c. 6 n d. 16 n
Answers: 1
You know the right answer?
Визначте ККД двигуна трактора (у відсотках), яким для виконання роботи 1,89∙106 Дж знадобилося 1,5 к...
Questions
question
English, 12.01.2021 04:10
question
English, 12.01.2021 04:10
question
Mathematics, 12.01.2021 04:10
question
Mathematics, 12.01.2021 04:10
question
Arts, 12.01.2021 04:10