A student drops a rock from a height of 5.00 m above the ground. What is the velocity of the rock just as it hits the ground? g=9.8m/s?
A. 9.89 m/s
B. 4.82 m/s
C. 7.25 m/s
D. 2.67 m/s
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The horizontal blue line through the middle of the lens is called the optical axis. as the lamp is moved above or below the axis, keeping the horizontal distance to the center of the lens constant, how does the horizontal distance from the lens to the image change?