Answer:
Digesting food
Explanation:
I have people who think that its not true but it is
Hope this helped
Answer:
V = ω A sin ω t can be used to describe SHM
When sin ω t = 1 (the maximum value possible)
V = ω A at equilibrium sin ω t = 1
Answer:
a) 53.3o b) 26.12o
Explanation:
Using Snell's law, the critical angle can be calculated. Critical angle is the maximum angle of incidence when light travels from a denser medium to a less dense medium that produces angle of refraction of 90o
n ( refractive index of the oil) = sin i/ sin r
i (incidence angle) = 40o
r (angle of refraction) = 31o
n = sin 40 / sin 31 ) = 1.248
critical angle = sin^-1 ( nr/ni) and nr = 1 ( refractive index of air)
critical angle = sin^-1 (1/1.248) = 53.5o
b) sin i / sin r = speed of light in air (v1 m/s) / speed of light in the medium (v2 m/s)
sin^-1((sin i × v2) / v1) = r
r = sin^-1 ( (sin 37.5 × 2.17 ×10^8) / 3.0 × 10^8) = 26.12o
