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The windows in an office tower are coated with a film to minimize reflected light of wavelength 550 nm. If the glass has an index of refraction of 1.52 and the film coating has an index of refraction of 1.25, how thick should the film be applied?
A spring has a spring stiffness constant k of 100N/m . How much must this spring be compressed to store 35.0J of potential energy? A 69-kg trampoline artist jumps upward from the top of a platform with a vertical speed of 5.2m/s. How fast is he going..
An electric fan is turned off, and its angular velocity decreases uniformly from 540 rev/min to 240rev/min in a time interval of length 3.65s, Find the number of revolutions made by the motor
question a 10 kg block of ice has a temperature of -8degc. the pressure is one atmosphere. the block absorbs 4.20 106 j
It is observed that the size of a real image formed by a concavemirror is four times thesize of the object when the object is 32.5 cm in front of the mirror. What is the radius of curvature of this mirror?
A heater coil connected to a 220V ac line has a resistance of 42.1Ohm. What is the average power used, What is the maximum value of the instantaneous power
A wheel of moment of inertia I, mass M, and radius R is placed on a ramp tiled at an angle theta from the horizontal. The wheel is released from rest. What is the magnitude of the center-of-mass acceleration for the wheel assuming it rolls witho..
A bead of mass m slides without friction down a track and around a loop-the-loop of radius R. The initial height of the track is h = 3.5R. What is the speed of the mass after going around the loop
While on an elevator, Jaden's apparent weight is 550N, When he is on the ground, the scale reads 600N, What is Jaden's acceleration while on the elevator
What is the magnitude of the (line) integral B. ds around a square path (1.5 cm x 1.5 cm) if the path is centered on the center of the rod and lies in a plane perpendicular to the axis of the rod?
you and a close friend stand facing each other. you are as close as you can get without actually touching. if each of
A 2.00-m tall basketball player is standing on the floor 10.0 m from the basket. If he shoots the ball at a 40 degree angle from the horizontal, what is the acceleration of the ball at its maximum height? The height of the basket is 3.05 m.
A positive charge of 5.00 mC is fixed in place. From a distance of 4.50 cm a particle of mass 6.60 g and charge +3.90 mC is fired with an initial speed of 62.0 m/s directly toward the fixed charge. How close to the fixed charge does the particle ge..
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