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The drawing shows three materials, a, b, and c. A ray of light strikes the a–b interface at an angle that now barely exceeds its critical angle of 40.0°. The reflected ray then strikes the a–c interface at an angle of incidence that now barely exceeds its critical angle (which is not 40.0°). The index of refraction of material a is na = 1.71. Discover the indices of refraction for the two other materials.
a block slides up a frictionless incined plane set at an angle of 25 degrees.a if the block reaches a maximum height on
You are in the neighborhood of a star (radius of 700,000 kilometers) which has emitted so many protons ("solar wind") during its life, that it now possesses a huge net negative charge of 6 x 10^6 C, What power must the engines of the probe use in o..
An archer, about to shoot an arrow, is applying a force of +240 Nto a drawn bowstring. What is the displacement ofthe bow string
Do you need to take into account the gravitational forces of the earth and moon on the protons? Why? I was thinking yes since thegravitational force on the moon is 1/6th of the Earth's and wouldaffect the weight.
A 1.0 ball hangs from the ceiling of a truck by a 1.0--long string. The back of truck, where you are riding with the ball, has no windows and has been completely soundproofed. The truck travels along an exceedingly smooth test track, and you feel no ..
A wooden raft has a mass of 45 kg. When empty it floats in water (density 1000 kg/m3) with 68% of its volume submerged. What mass of sand could be put on the raft without it sinking.
An eastbound subway train accelerates from rest at 1.22 m/s2 along a straight track. How far apart are the trains when the eastbound subway train is traveling at the same speed as the westbound train
When subjected to a force of compression, the length of a bone (compression Young's modulus 9.4 x 10^9 N/m2, by how much does it stretch
At the tropics, the water close to the surface of the ocean is hotter than the deep water. Would the Second Law of thermodynamics be violated if a machine is been put to operate between these two water levels? Explain.
The particles in the nucleus of an atom are approximately 1.00×10?15 apart, while the electrons in an atom are about 1.00×10?10 from the nucleus. How many pounds would the force be
a 1200-turn coil of wire that is 2.3 cm in diameter is in a magnetic field that drops from 0.12 t to 0 in 9.0 ms. the
What is the speed of the wave?
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