subject
Physics, 08.11.2019 11:31 chris4212

Dan confirms the authenticity of an amethyst stone by a few tests. during one of the tests, he finds the angle of the refracted ray of light coming out of the amethyst into the air as 28°. if the refractive index of amethyst is 1.55, what is the incident angle?

ansver
Answers: 3

Another question on Physics

question
Physics, 21.06.2019 19:30
Just incase you cannot read it, it says: figure one shows that the demand for electricity in a house varies during a summer day. air conditioning is used in the house and cheap electricity is available at night for washing clothes and other appliances. suggest reasons for demand at these times: 21: 00-01: 00 07: 00-9: 00 18: 00-20: 00
Answers: 2
question
Physics, 21.06.2019 20:20
Ateam of astronauts is on a mission to land on and explore a large asteroid. in addition to collecting samples and performing experiments, one of their tasks is to demonstrate the concept of the escape speed by throwing rocks straight up at various initial speeds. with what minimum initial speed vesc will the rocks need to be thrown in order for them never to "fall" back to the asteroid? assume that the asteroid is approximately spherical, with an average density p 3.84 x108 g/m3 and volume v 2.17 x 1012 m3 recall that the universal gravitational constant is g 6.67 x 10-11 n m2/kg2
Answers: 2
question
Physics, 22.06.2019 02:00
Amotorcycle is moving at a constant velocity of 15 meters/second. then it starts to acclerate and reaches a velocity of 24 meters/second in 3 seconds whats the acceleration of the motorcycle over this time
Answers: 1
question
Physics, 22.06.2019 14:10
Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:
Answers: 3
You know the right answer?
Dan confirms the authenticity of an amethyst stone by a few tests. during one of the tests, he finds...
Questions
Questions on the website: 13349730