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A wedge of glass increases in thickness with an angle of 2 mrad. Green light (wavelength 530 nm) illuminates the upper surface of the wedge at normal incidence. Approximately how far from the edge of the wedge (where it tapers to zero thickness) does the first maximum in the reflected light occur? Assume that the wedge is surrounded by air, and that the index of refraction of the glass is n=1.5.
A solid sphere of radius 40.0 cm has a total positive charge of 30.0 µC uniformly distributed throughout its volume. Calculate the magnitude of the electric field
A 48 kg cart is moving across a frictionless floor at 1.5 m/s. A 68 kg boy, riding in the cart, jumps off the cart so that he hits the floor with zero velocity. What is the velocity of the cart after the boy jumped
Two wires are identical, except that one is aluminium and one is gold. The aluminium wire has a resistance of 0.18. What is resistance of the gold wire.
Light in a vacuum is incident on a transparent glass slab. The angle of incidence is 38.8°. What is the index of refraction of the liquid
Your dog is running around the grass in your back yard. He undergoes successive displacements 3.37 m south, 8.45 m northeast, and 13.3 m west. What is the resultant displacement?
A 3.4 x 105 kg airplane is flying horizontally at a height of 6.0 km with constant velocity. What is the amount of lifting force created by the plane's wings
When a ceiling fan rotating with an angular speed of 5.6 rad/s is turned off, What is the moment of inertia of the fan
Light of wavelength 5.30 102 nm passes through a slit of width 0.210 mm. Determine the width of the first-order bright fringe
A 75g bungee cord has an equilibrium length of 1.2 m. The cord is stretched to a length of 1.8m, then vibrated at 20 Hz. What is the spring constant of the bungee cord
The jumping squirrel. A squirrel wants to jump from a point A on a branch of a tree to a point B on another branch. at what angle to the horizontal should he jump
What is the coefficient of kinetic friction between the crate and the floor. what height will the stream of water strike.
A helicopter is lifting two crates simultaneously. One crate with a mass of 160 kg is attached to the helicopter by cable A. The second crate with a mass of 73 kg is hanging below the first crate and attached to the first crate by cable B. As the hel..
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