Mathematics, 27.03.2020 07:56 catdog5225
Robert has built a mechanical model solar system with three balls representing planets at the ends of rods attached to the center representing the sun. The planets are aligned when he turns on the motor. The innermost planet makes a revolution in 18 seconds, the middle planet makes a revolution in 30 seconds, and the outer most planet makes a revolution in 42 seconds. After how many seconds will the planets be aligned again?
Answers: 2
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Robert has built a mechanical model solar system with three balls representing planets at the ends o...
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