What’s the question so that i can help you
Answer :
Explanation:
a =vf -vi/t
a = 9.5m/s -om/s/41 s
a = 0. 23 m/s²
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°
I don't know the answer it's been awhile since I did this kind of stuff. Sorry.
Answer:
The answer is D.
Explanation:
The Law of Conservation of mass states that matter is not created nor destroyed in a chemical reaction.