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Consider a simple model of the zoom lens with a converging and diverging lens. The converging lens has focal length f1=12cm, and the diverging lens has focal length f2=-12cm. The lenses are separated by 4 cm. For a distant object, where is the image of the converging lens? The image of the converging lens serves as the object for the diverging lens. What is the object distance for the diverging lens?
Two large, parallel, conducting plates are 26cm apart and have charges of equal magnitude and opposite sign on their facing surfaces. An electrostatic force of 2.8 x10-15 N acts on an electron placed anywhere between two plates.
In the overhead view of the figure, a 425 g ball with a speed v of 8.0 m/s strikes a wall at an angle of 30 A hat degree and then rebounds with the same speed and angle. It is in contact with the wall for 12.5ms. What is the impulse on the ball (t..
You are a meteorologist. While taking present weather observations, you note that the sky is full of wispy cirrus clouds estimated to be about 6 kilometer overhead. find how long will it take before it passes your area
Assuming that the upper surface of the ice sheet is at -13?C and the bottom surface is at 0 ?C, calculate the time it will take to form an ice sheet 25cm thick
A man driving a car toward a large vertical wall sounds his horn. The car is traveling at 92 km/h. What is the frequency of the car horn
A helium nucleus (charge = 2e, mass = 6.63 x 10-27 kg) traveling at 6.20 x 105 m/s enters an electric field, What is its speed at point circled
What is electric field above the sheet at the point the proton is at (magnitude and direction)? What is the surface current density of the sheet?
it takes the elevator in a skyscraper 4.3s to reach its cruising speed of 13ms . a 67kg passenger gets aboard on the
A basketball player jumps straight up for a ball. To do this, he lowers his body 0.300 m and then accelerates through this distance by forcefully straightening his legs. This player leaves the floor with a vertical velocity sufficient to carry him..
A 1000 kg cannon is pointed at 30 degrees to the horizontal. Its muzzle speed is 300 m/s. It fires a ball, mass 5 kg. At what angle and speed will the ball fly out
2 positive charges each is 4 micro C located at the positions (0,0) and (20,0) and all coordinates are in cm, calculate the electric field due to the two charges
A cardinal (Richmondena cardinalis) of mass 4.00×10?2 and a baseball of mass 0.141 have the same kinetic energy. What is the ratio of the cardinal's magnitude of momentum to the magnitude of the baseball's momentum?
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