a satellite orbits the earth in a circle with constant speed. which of the follo

Question

a satellite orbits the earth in a circle with constant speed. which of the following is tru 7 8 9 10 11 12 13 14 15 16 17 18 20 21 22 23 24 25 26 Two marbles are released to roll down two frictionless ramps. One marble rolls down a short, steep ramp and the other marble rolls down a long, flat ramp. If they are released from the same heights, how will the speeds at the bottom of the ramps compare? A. The marble rolling down the short, steep ramp will have the greatest speed. B. The marble rolling down the long, flat ramp will have the greatest speed. C. They will have the same speed at the bottom of the ramps. D. There is not enough information to tell. 2011 Loudcloud Systems Privacy Policy I Tech support Feedback Iver: 2 B.18 -03 Dec 2015 16.27 AM MST Total Questio Answered Que Unanswered Q Submit Quiz My Links

Explanation / Answer

A satellite orbits the earth in a circle with constant speed. Which of the following is true

C is true

Only C is true

a..the satellite moves at constant speed but NOT constant velocity since it is continuously changing direction. Since velocity is changing the satellite is accelerating.

b. The net force on the satelliteis directed forward in the direction of travel is not true

d . If the satellite had an acceleration away from then earth then it would be moving away from the earth and it is not since it is in a ciruclar orbit.

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