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A jeweller’s lens of focal length 1.7 cm is utilized as a magnifier. With the lens held near the eye, decide the following.
a) What is the object distance giving the maximum magnification?
b) What is the angular magnification when the object is at the focal point of the lens?
c) What is the angular magnification when the image formed by the lens is at the near point of the eye (25 cm)?
A 65 kg hiker has fallen down a hole. One rescuer attaches a rope to the injured hiker and then a second rescuer pulls the injured hiker straight up out of the hole at a steady rate. How much force would the second rescuer need to exert on the rope t..
A uniform electric field of magnitude 400V/m is directed in the positive x-direction. A10 µC charge moves from the origin to the point (x, y) = (20 cm, 50 cm). What was the change in the potential energy of this charge?
The region of the solar system between Mars and Jupiter contains many asteroids that orbit the Sun. Find the period of the orbit
The potential difference between the plates of a capacitor is 247 V. Midway between the plates, a proton and an electron are released. find the initial speed of the proton
Galileo's great-great-great grandchild stands at the top of a vertical tower 53.4 m tall with a Chianti bottle, What is the velocity of the bottle as it hits the ground, if it was just dropped from the tower
Draw a plot of the voltage versus time for each of the four gates in a four-phase CCD as it reads out the collected charge in each pixel (the clocking waveforms). Be sure to label everything appropriately.
A galvanometer with a coil resistance of 14.1 is used with a shunt resistor to make a nondigital ammeter that has an equivalent resistance of 0.755. determine the full-scale current of the galvanometer
julio throws his 0.20kg football in the living room and knocksover his mothers 0.80 kg antique vase. how fast did julio throw the football
The nucleus 11-4 Be undergoes B- decay with a half-life of 13.8 sec. The atomic mass of 11-4 Be is 11.021660 u. What is the total kinetic energy of the decay products
a golfer hits a shot to a green that is elevated 2.80 m above the point where the ball is struck. the ball leaves the
a man is standing near a gate and a flag pole. The gate is 15 ft from the pole. If the pole is h=35 ft tall, how far is the man from the gate
What is the minimum thickness of the film. what is the magnitude of the average acceleration of the ball through out this time interval.
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