The focal length of a magnifying glass is 45 cm to
The focal length of a magnifying glass is 4.5 cm.
1) To magnify an object do you place it at 3.0 cm or at 5.0from the glass?
2) If the near-point is 30 cm, find the magnification for the image at infinity
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two piers c and d are placed on a river 1610 meter apart two people must make round trips from pier c to pier d and
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the focal length of a magnifying glass is 45 cm1 to magnify an object do you place it at 30 cm or at 50from the glass2
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a 70 kilogram guy can walk up the 2109 steps to the top floor 440 meter high of the sears tower in 20 minute compute
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