Answers: 1
Physics, 22.06.2019 03:00
Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?
Answers: 3
Physics, 22.06.2019 11:30
If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?
Answers: 1
Physics, 22.06.2019 12:10
Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?
Answers: 2
Physics, 22.06.2019 13:30
6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.
Answers: 3
A golf club rotates 215 degrees and has a length (radius) equal to 29 inches. The time it took to sw...
Mathematics, 22.01.2021 07:00
Geography, 22.01.2021 07:00
Biology, 22.01.2021 07:00
Mathematics, 22.01.2021 07:00
Biology, 22.01.2021 07:00
Social Studies, 22.01.2021 07:00
Social Studies, 22.01.2021 07:00
Mathematics, 22.01.2021 07:00
History, 22.01.2021 07:00
Mathematics, 22.01.2021 07:00
History, 22.01.2021 07:10
Biology, 22.01.2021 07:10