An observer moving toward earth with a speed of 0.84 c notices that it takes 5.1 min for a person to fill her car with gas. suppose, instead, that the observer had been moving away from earth with a speed of 0.90 c.
how much time would the observer have measured for the car to be filled in this case?
Answers: 1
Physics, 22.06.2019 06:30, haha81
Which of these statements is true? a. quarks pair with leptons to form protons and neutrons. b. quarks pair with bosons to form photons. c. quarks pair with photons to form protons and neutrons. d. quarks pair with other quarks to form protons and neutrons. e. quarks pair with electrons to form protons.
Answers: 1
Physics, 22.06.2019 14:30, sross8799
Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?
Answers: 2
An observer moving toward earth with a speed of 0.84 c notices that it takes 5.1 min for a person to...
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