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A near-sighted person might correct his vision by wearing diverging lenses with focal length f = -40cm . When wearing his glasses, he looks not at actual objects but at the virtual images of those objects formed by his glasses. Suppose he looks at a 10cm -long pencil held vertically 2.0m from his glasses.
A.) Use ray tracing to determine the location of the image.
B.) Use ray tracing to determine the height of the image.
A 7.80-g bullet moving at 610 m/s penetrates a tree trunk to a depth of 5.80 cm, Use work and energy considerations to find the average frictional force that stops the bullet
Two point charges 2.4 and 6.50 are 0.10 apart. Point is midway between them; point is 8.00×10-2 from and 6.00×10-2 from . Take the electric potential to be zero at infinity. Find out the work done by the electric field on a charge of 2.50 that tra..
A student sitting on a frictionless rotating stool has rotational inertia 0.92kg?m2 about a vertical axis through her center of mass, Ignoring her arm mass, what's her new rotational velocity
An ac series circuit has an impedance of 196 ? , and the phase angle between the current and the voltage of the generator is ? = -72°. The circuit contains a resistor and either a capacitor or an inductor
A kicker's extended leg is swung for 0.4 seconds in a counterclockwise direction while accelerating at 200 deg/s2. What is the angular velocity of the leg
A proton starting from rest is accelerated in a cyclotron to a speed of 3.0•106 m/s. Find the work done on a proton by the electrical force of the cyclotron.
An airplane flies in a loop (a circular path in a vertical plane) of radius 150m . The pilot's head always points toward the center of the loop, What is the apparent weight of the pilot at this point
Two objects attract each other gravitationally with a force of 2.5 x10-10 N while they are 0.33 m apart. Their total mass is 4-kg. Find out their individual masses.
A parachutist descending at the speed of 25 m/s loses a shoe at an altitude of 50 m. (Assume the positive direction is upward.)
One fine spring afternoon, you go outside to play a rousing game of hoop-and-stick. If your hoop rolls without slipping, what is the angular speed of the hoop
explain how would you evaluate much accountability for AIS security falls on management in a large and a small accounting firm.
What phase difference between two otherwise identical travelling waves, moving in the similar direction along a stretched string.
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