Physics, 28.01.2021 18:30 cheesecake1919
1.) A laser beam is reflected by a plane mirror. It is observed that the angle between the incident and reflected beams is 30.
What is the angle of reflection? Explain
2.) A ray of light strikes a plane mirror with an angle of 30 above the horizon.
What is the angle of incident?
What is the angle of reflection?
Show your work
3.) Looking at the figure on the side? (attached)
How many times will the light strike the top of the mirror?
The distance between the two parallel mirrors is 70 cm, and the length of each mirror is 100cm
thank you to anyone who will solve it <3
Answers: 3
Physics, 21.06.2019 19:00, dasiaflowers85
When the velocity of an object is doubled, by what factor is its momentum changed? by what factor is its kinetic energy changed? a) the momentum is zero. b) the momentum is not zero. c) difficult to say.
Answers: 3
Physics, 21.06.2019 23:30, southerntouch103
A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?
Answers: 3
1.) A laser beam is reflected by a plane mirror. It is observed that the angle between the incident...