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As we discussed in class, most of the refraction in your eye happens at the surface of your cornea (n = 1.376). Use this idea to explain why wearing a swimming mask or goggles helps us to see more clearly underwater. Include a diagram in your explanation.
An electromagnetic velocity filter (sometimes called a Wien filter) is used in a variety of experiments and other applications, such as electron microscopes, in which we need a beam of charged particles all going at the same speed. Generally the s..
A proton is passing through a uniform, 0.500-T magnetic field and is directed along the x axis. find the pitch of the helix
The resistance of the loop is 0.490 ohms. A magnetic field parallel to z-axis is given by B= 0.830 y^2 t, where B is in tesla, y in meters, and t in seconds. What is the size of the induced current in the loop at t = 0.470s .
When a mercury manometer is connected to a gas main, the mercury stands 48.9 cm higher in the tube that is open to the air than in the tube connected to the gas main
A 82-kg fisherman in a 114-kg boat throws a package of mass m = 15 kg horizontally toward the right with a speed of vi = 4.6 m/s, find the velocity of the boat after the package is thrown
What is the launch speed of a projectile that rises vertically above the Earth to an altitude equal to five before coming to rest momentarily.
A high-voltage transmission line with a resistance of 0.335 ?/km carries a current of 1.45 kA, What fraction of the transmitted power does this loss represent
A skier with a mass of 66kg starts from rest and skis down an icy (frictionless) slope that has th elength of 57 m at an angle of 32° with respect to the horizontal. At the bottom of the slope, path levels out and becomes horizontal, the snow beco..
A parallel- plate capcitor of capacitance 2.0X10^-10 F is oppositely charged with 3.0x10 ^-8 C charge. The distance between the plate is 0.5mm. What is the area on each plate
A ball is thrown directly downward, with an initial speed of 6.25 m/s, from a height of 34.4 m. After what interval does the ball strike the ground
Two insulated wires, each 2.50 m long, are taped together to form a two-wire unit that is 2.50 m long. One wire carries a current of 7A; the other carries a smaller current I in the opposite direction. The two wire unit is placed at an angle of 78..
An 85-kg man stands 0.70 m from the center of a large, rotating turntable with a frictionless axis. What is the turntable's moment of inertia
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