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Problem: The refractive index of a transparent material can be determined by measuring the critical angle when the solid is in air. If thetaC= 41.0°.
1- What is the index of refraction of the material?
If possible just a brief explanation how you got the answer?
The escape speed from a very small asteroid is only 26 m/s. If you throw a rock away from the asteroid at a speed of 39 m/s, what will be its final speed.
Assume temperate is 20 degree C. A submarine 64m deep emits a sonar wave. How deep is the ocean at that point
You are using a grating with 1000 lines per millimeter; the angle for the first order maxima is ? = 17°. Find the angle of the second order maxima
A circuit consists of a resistor, an ideal 1.2-H inductor and an ideal 60-Hz generator, all connected in series. The rms voltage across the resistor is31 V and the rms voltage across the inductor is 37 V.
A move theater projector produces a 3.0 m wide image of a 2.5 cm wide picture on a screen that is 18 m distant. The focal length of the projection lens must be about?
An electron has a kinetic energy of 0.100 MeV. Find its speed according to classical and relativistic mechanics
A banked circular highway curve is designed for traffic moving at 67km/h. The radius of the curve is 209 m. Traffic is moving along highway at 48km/h on a rainy day.
a boy on a skateboard coasts along at 6.0 ms. he has a ball that he can throw at a speed of 10 ms.1 what is the balls
A person consumes a snack containing 14 food calories (14kcal). Find what is the power this food produces if it is to be "burned off" due to exercise in 6 hours
An electric drill starts from rest and rotates by a constant angular acceleration. After the drill has rotated through a certain angle, the magnitude of the centripetal acceleration of a point on the drill is twice the magnitude of the tangential acc..
A police radar has an effective range of 1.3 km, while a motorist's radar detector has a rangeof 1.8 km. The motorist is going160 km/h in a 60km/h zone when the radar detector beeps. At what rate must the motorist decelerate to avoid a speeding ticke..
A diver 40 m deep in 10 degree Celcius fresh water exhales a 0.50-cm-diameter bubble. What is the bubble's diameter just as it reaches the surface of the lake, where the water temperature is 20 degrees Celcius? Assume that the air bubble is always in..
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