Magnifying Glass With the Image at Infinity: What is the angular magnification of a magnifying glass of focal length 4.0 cm if the image is to be viewed by a relaxed eye having a near point of 25 cm?
A. 2.0
B. 3.0
C. 3.6
D. 4.0
E. 6.3
Answer: E
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The figure shows a graph of the velocity as a function of time for a basketball player traveling up and down the court in a straight-line path. For the 10 s shown on the graph, find (a) the net displacement of the player. (b) the total distance run by the
What will be an ideal response?
Two long, parallel wires carry currents of different magnitudes. If the amount of current in each wire is doubled, what happens to the magnitude of the force between the wires?
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