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Problem: A ray of light in air strikes the surface of a pool of water at an angle of 30 degrees from the normal.
Part A: What is the angle (measured from the normal) of the refracted ray in the water?
I want help to obtain the angle (measured from the normal) of the refracted ray in the water.
You have just moved into a new apartment and are trying to arrange your bedroom. You would like to move your dresser of weight 3,500 \rm N across the carpet to a spot 5 \rm m away on the opposite wall. How much work do you do on the dresser
The temperature in Browning, Montana, was 44.0 °F on January 23, 1916. The next day the temperature plummeted to - 56.0 °F. What was the temperature change in Celsius degrees?
Place a sheet of paper under a medium-sized book lying on a smooth tabletop or desktop. Which objects move the least when the paper is pulled rapidly
A person is pushing a uniformly-loaded 27.60 kg wheelbarrow along a plank that makes an angle α = 26.0° with the horizontal. What is the total force the person must apply
A 45 kilogram crate is on a ramp inclined at 36o to the horizontal, and the coefficient of friction between the crate and the ramp is .26. Evaluate the force of friction
A horse canters away from its trainer in a straight line, moving 130 m away in 10.0 s. It then turns abruptly and gallops halfway back in 5.3 s. find its average velocity for the entire trip, using "away from the trainer" as the positive direction..
A pen contains a spring by a spring constant of 200 N/m. When the tip of the pen is in its retracted position, the spring is compressed 5.90 mm from its unstrained length. In order to push the tip out and lock it into its writing position, the spring..
Suppose that after a centrifuge in a medical laboratory is turned off, it continues to rotate with a constant angular deceleration for 10.40 s before coming to rest. How numerous revolutions did the centrifuge complete after being turned off.
q1. a cd has a playing time of 53.1 minutes. while the music starts the cd is rotating at an angular speed of 498
A movie camera with a (single) lens of focal length 70 mm takes a picture of a person standing 29 m away. what is the height of the image in millimeters on the film
Two runners approaching each other on a straight track haveconstant speeds of 4.50m/s and 3.50m/s, respectively, whenthey are 100m apart. How long will it take for the runners tomeet, and at what position will they meet if they maintain these speeds?
Two parallel wires of length 17 m are separated by a distance of a = 0.13 cm, What is the magnetic force on each wire
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