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Two converging lenses, each of focal length 16.5 cm, are placed 39.8 cm apart, and an object is placed 30.0 cm infront of the first lens. Where is the final image formed? (hint:final image will be formed in front of the secondlense)
What is the magnification of the system?
An airplane needs to reach a velocity of 487 km/h to take off. On a 2000 m runway, what is the least acceleration necessary for the plane to take flight.
The electric field of an electromagnetic wave in a vacuum isEy = (17.0 V/m)cos((6.28 ×108)x??t), where x is in m and t is in s. What is the wave's magnetic field amplitude
A solenoid 300 turns having a length of 25.0 cm and a diameter of 10.0 cm has a current of 0.290 A.
consider a merry-go-round in the shape of a uniform disc of mass 400 kg and radius 3 m. two children each of mass 20 kg
The picture below shows a model of a human leg with a heavy weight on the ankle. It represents a person lying on his back doing leg-lifts to exercise the quadriceps. What is the magnitude of the gravitational torque
A particular guitar string is supposed to vibrate at 206 Hz, but itis measured to actually vibrate at 210 Hz. By what percent should the tension in the string be changed to get the frequency to the correct value?
q1. a dockworker applies a constant horizontal force of 79.0 to a block of ice on a smooth horizontal floor. the
a dog in an open field runs 10.0m east and then 27.0m in a direction 55.0 degrees west of north. please show steps in
a train travels due south at 30 ms relative to the ground in a rain that is blown toward the south by the wind. the
The force stretching the D string on a certain guitar is 156 N. What is the speed of the waves on the string
A spring has a spring constant = 40 N/m. It is compressed by a distance 10 cm. calculate Distance along the track to which the cart travels
A tennis player receives a shot with the ball ( 0.0600kg) traveling horizontally at 50.0 m/s, what is the impulse delivered to the ball by the racket
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