Answer:
28.42°
Explanation:
Critical Angle:This is the incident angle at which the angle of refraction is 90° when light passes from denser to less dense medium
from Refraction,
1/n = sinc......... Equation 1
Where n = refractive index of the liquid, c = critical angle.
make c the subject of the equation
c = sin⁻¹(1/n)............. Equation 2
Given: n = 2.1
Substitute the value of n into equation 2
c = sin⁻¹(1/2.1)
c = sin⁻¹(0.476)
c = 28.42°
Hence the critical angle = 28.42°
Answer: K: 0K, C: -273.15 degrees, F: -459.67 degrees
Explanation:
The answer should be C.
Because the man filling his car with gas it expecting kind of energy conversion to happen it chemical potential energy to kinetic energy. Hope it helped you, and have a great day. "Thank you so much!"
-Charlie
A- electrical energy to kinetic energy