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The figure above shows the present position on a radar [#permalink]
06 Oct 2003, 01:13
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9. 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 3.690┬░
(2) r = 40