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# The figure above shows the present position on a radar

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Manager
Joined: 14 Jun 2005
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The figure above shows the present position on a radar [#permalink]

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06 Mar 2006, 10:56
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The figure above shows the present position on a radar screen of a sweeping beam that is rotating at a constant rate in a clockwise direction. In which of the four quadrants will the beam lie 30 seconds from now ?
(1) In each 30-second period, the beam sweeps through 3.690Â°
(2) r = 40
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Manager
Joined: 04 Jan 2006
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06 Mar 2006, 11:56
Is the ans C?

We need to know r and the rate of rotation to determine the quadrant after 30s
Manager
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09 Mar 2006, 10:40
OA is A.

I choose C because we do not know if r was drawn to scale.
09 Mar 2006, 10:40
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# The figure above shows the present position on a radar

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