A spacecraft flies away from the earth with a speed of 4.60x10
6
m/s relative to the e...
A spacecraft flies away from the earth with a speed of 4.60x10
6
m/s relative to the earth and then returns at the same speed. The spacecraft carries an atomic clock that has been carefully synchronised with an identical clock that remains at rest on earth. The spacecraft returns to its starting point 365 days (1 year) later, as measured by the clock that remained on earth. What is the difference in the elapsed times on the two clocks?
Answers: 2
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What is the magnitude of the acceleration vector which causes a particle to move from velocity −5i−2j m/s to −6i+ 7j m/s in 8 seconds. answer in m/s.
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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 15:30
The radius of a sphere is increasing at a rate of 9 cm/ sec. find the radius of the sphere when the volume and the radius of the sphere are increasing at the same numerical rate.
Answers: 1
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