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A thin layer of alcohol with n2 =1.2 lies on top of a thin layer of water it h n3 = 1.33 which is on top of glass surface with n4 = 1.5. A ray of light is incident from air (with n1 = 1) at angel 30 degrees. At what angle will the light emerge from the other side of the glass?
How much work should be done to bring 3 electrons from a great distance apart to within 2.55E-10 m from one another (at the corners of an equilateral triangle).
A 155 g copper bowl contains205 g of water, both at 20.0°C. Avery hot 300 g copper cylinder is dropped into the water, causingthe water to boil, with 5.40 g beingconverted to steam.
A 0.145 kg baseball pitched at 45.0 m/s is hit on a horizontal line drive straight back toward the pitcher at 52.0 m/s. calculate the average force between the ball and bat during contact
A 201 kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.860, and the log has ..
a meter stick is held vertically with one end on the floor and is then allowed to fall. find the speed of the other end
To focus a camera on objects at different distances, the converging lens is moved toward or away from the film, Over what distance must the lens be movable
two 1 microcoulomb point charges are located on the x-axis at x 2m and at x -2m. find the magnitude of the electric
an outfielder throws a 0.145kg baseball to the shortstop with a speed of 30m/s at an angle of 20 degrees above the horizontal. How far does the ball travel
A piece of Nichrome wire passes a current of 0.933 A when a potential of 1.64 Volts is applied. What is the resistance of the wire
A 5.00 kg ball, moving to the right at a velocity of +2.00 m/s on afriction less table, collides head-onwith a 7.50 kg ball moving with a velocity of -1.00 m/s. Find the final velocities of the ball if the collision is a) elastic, and b) completel..
Your roommate is working on his bicycle and has the bike upside down. He spins the 52.0 -diameter wheel, What is the pebbles acceleration
A 45-m length of wire is stretched horizontally between two vertical posts. Find the magnitude of the earth's magnetic field at the location of the wire
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