Which of the following is true about galaxies?
a. Galaxies are moving away from each other.
...
Physics, 27.08.2021 08:50 trinity0929
Which of the following is true about galaxies?
a. Galaxies are moving away from each other.
b. Galaxies are moving toward each other.
c. Galaxies move in a random pattern.
d. Galaxies are stationary.
Answers: 2
Physics, 22.06.2019 11:00
If a simple machine reduces the strength of a force, what must be increased?
Answers: 3
Physics, 22.06.2019 13:30
6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.
Answers: 2
Physics, 22.06.2019 13:50
9.98 kg of r-134a at 300 kpa fills a rigid container whose volume is 14 l. determine the temperature and total enthalpy in the container. the container is now heated until the pressure is 600 kpa. determine the temperature and total enthalpy when the heating is completed. use data from the steam tables.
Answers: 1
Physics, 22.06.2019 14:30
Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.
Answers: 2
Biology, 28.03.2021 03:40
Geography, 28.03.2021 03:40
Mathematics, 28.03.2021 03:40
Mathematics, 28.03.2021 03:40
Social Studies, 28.03.2021 03:40
Mathematics, 28.03.2021 03:40
Mathematics, 28.03.2021 03:40
Social Studies, 28.03.2021 03:40
Social Studies, 28.03.2021 03:40
Social Studies, 28.03.2021 03:40