What is the energy equivalent of an object with a mass of 25 kg?
55% 10
75% 102
3...
![subject](/tpl/images/cats/fizika.png)
Physics, 22.10.2019 17:50 cassiuspricerules
What is the energy equivalent of an object with a mass of 25 kg?
55% 10
75% 102
38% 1015
225 + 10
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 16:00
28. a stone is projected at a cliff of height h with an initial speed of 42.0 mls directed at angle θ0 = 60.0° above the horizontal. the stone strikes at a, 5.50 s after launching. find (a) the height h of the cliff, (b) the speed of the stone just before impact at a, and (c) the maximum height h reached above the grou
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 20:20
Aplanet of mass m 6.75 x 1024 kg is orbiting in a circular path a star of mass m 2.75 x 1029 kg. the radius of the orbit is r 8.05 x107 km. what is the orbital period (in earth days) of the planet tplanet?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 03:30
As part of an industrial process, air as an ideal gas at 10 bar, 400k expands at steady state through a valve to a pressure of 4 bar. the mass flow rate of air is 0.5 kg/s. the air then passes through a heat exchanger where it is cooled to a temperature of 295k with negligible change in pressure. the valve can be modeled as a throttling process, and kinetic and potential energy effects can be neglected. (a) for a control volume enclosing the valve and heat exchanger and enough of the local surroundings that the heat transfer occurs at the ambient temperature of 295 k, determine the rate of entropy production, in kw/k. (b) if the expansion valve were replaced by an adiabatic turbine operating isentropically, what would be the entropy production? compare the results of parts (a) and (b) and discuss.
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 16:10
Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)
Answers: 1
You know the right answer?
Questions
![question](/tpl/images/cats/health.png)
Health, 03.08.2020 14:01
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 03.08.2020 14:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 03.08.2020 14:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 03.08.2020 14:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 03.08.2020 14:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 03.08.2020 14:01
![question](/tpl/images/cats/mkx.png)
Arts, 03.08.2020 14:01
![question](/tpl/images/cats/es.png)
Spanish, 03.08.2020 14:01
![question](/tpl/images/cats/mat.png)
Mathematics, 03.08.2020 14:01
![question](/tpl/images/cats/mat.png)
Mathematics, 03.08.2020 14:01
![question](/tpl/images/cats/mat.png)
Mathematics, 03.08.2020 14:01