A ray of light traveling in air makes a 63.0 angle with respect to the normal of the surface of a liquid. It travels in the liquid at a 39.2 angle with respect to the normal.
Find the critical angle for total internal reflection for this interface.
Question 2
A particle physicist observes cosmic rays creating a new particle high in the atmosphere, and the speed of this particle is measured at 99.7 the speed of light.
It is unstable, and is observed to decay in an average 37.0 s. If this particle were at rest in the laboratory, what would be its average lifetime?
A) 2.9 s
B) 18 s
C) 5.3 s
D) 12 s
E) 4.3 s
The platypus is very difficult to spot even on the surface of a river.
Normal Breath Sounds
Light-Gathering Power
Microscopic image of prostate cancer. The tissue on the right is somewhat normal; the tissue on the ...
How to find the antiderivative of double-angle trigonometric functions, sin(2x), cos(2x), etc.
Dash Warning Lights: Oil (Engine) Light