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Q. A glass paperweight with an index of refraction n rest on a desk, as shown below. An incident ray of light enters the horizontal top surface of the paperweight at an angle of 77 degrees to the vertical. Determine the least value of n for which there is total internal reflection on the vertical surface?
find the magnitude and direction of the impulse delivered to the ball by the floor.
The pilot of an aircraft wishes to fly due west in a 37.70 km/h wind blowing toward the south. The speed of the aircraft in the absence of the wind is 191 km/h.
At a distance r1 from a point charge, magnitude of the electric field created by the charge is 296 N/C. At a distance r2 from the charge, the field has a magnitude of 168 N/C. Find the ratior2/r1.
Is kinetic energy consumed in the third type of collision studies? Classify the three collision kinds as elastic, inelastic, or completely inelastic.
A portable 3.5 kw wate heater is immersed for 3 minutes in a plastic filled with 20 kg of water at 20C. what will be the final temperature of the mixture given specific heat of water at 4186 j/gkC.
A merry-go-round starts from rest and accelerates uniformly over 23.5 s to the final angular velocity of 6.55 rev/min.
The infamous chicken is dashing toward home plate with a speed of 5.80 while he decides to hit the dirt. The chicken slides for 1.1, just reaching the plate as he stops (safe, of course).
At rest, a car's horn sounds at a frequency of 385 Hz. The horn is sounded while the car is moving down the street. A bicyclist moving in the similar direction with one-third the car's speed hears a frequency of 342 Hz. What is the speed of the ca..
A car traveling at 16.00 m/s runs out of gas while traveling up a 19 degree slope. How far up the hill will it coast before starting to roll back down.
What is the maximum speed of the ball.
Approximation the force a person should exert on a string attached to a 0.130 kg ball to make the ball revolve in a horizontal circle of radius 0.600 m.
Do you agree with IBM's employment response to competition from software development contractors in India, like Wipro, that are expanding into IT consulting services? Why or why not.
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