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A contact lens is made of plastic with an index of refraction 1.38. The lens has an inner radius of curvature of +2.46 cm and an outer radius of curvature of +2.08 cm. What is the focal point of the lens?
Assume that the blocks accelerate as shown with an acceleration of magnitude a= 0.550 m/s^2 and that the coefficient of kinetic friction between block 2 and the plane is μ= 0.400. Find out the mass of block 2, m2, when θ= 30.0.
An unstable particle at rest breaks up into two fragments of unequal mass. The mass of the lighter fragment is 2.00*10-28 kg, and that of the heavier fragment is 1.64*10-27 kg. If the lighter fragment has a speed of 0.893c after the breakup, what is ..
To monitor the breathing of a hospital patient, a thin belt is girded around the patient's chest, Find the average induced emf in the coil during this time. Assume the magnitude of the Earth's magnetic field is 26.9
The filament in an incandescent light bulb is made from tungsten. The light bulb is plugged into a 120 V outlet, determine how long must the wire be
As a sailboat sails 53.0 m due north, abreeze exerts a constant force F1 onthe boat's sails. This force is directed at an angle west of duenorth. A force F2 of the same magnitude directed due north would do the same amount of work on the sailboat ove..
A mass-spring system oscillates with an amplitude of 4.60 cm. If the spring constant is 240 N/m and the mass is 435 g, determine the mechanical energy of the system. Calculate the speed of the sphere's CM at the bottom of the ramp. Determine the m..
A package is dropped out of a helicopter, which is moving upward at 10m/s at a constant rate. how high above the ground was the package when it was dropped
A Van de Graaff generator has a spherical dome of radius 25 cm. Operating in dry air, where "atmospheric breakdown" is at Emax = 3.0 · 106 N/C, obtain the maximum charge that can be held on the dome
A sled is dragged along a horizontal path at a constant speed of v = 1.52 m/s by a rope that is inclined at an angle of ? = 30.3° with respect to the horizontal
A thin rod (length = 1.816 m) is oriented vertically, with its bottom end attached to the floor by means of a frictionless hinge. compute the magnitude of the angular acceleration of the rod
electrical power generation is one of the largest sources of human-caused greenhouse gas emissions. these emissions are
A 1.0 ball hangs from the ceiling of a truck by a 1.0--long string. The back of truck, where you are riding with the ball, has no windows and has been completely soundproofed. The truck travels along an exceedingly smooth test track, and you feel no ..
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