Will give brainliest!
aldis is swinging a ball tied to the end of a string over his head. suddenly, the string breaks and the ball flies away.

arrow _ best represents the path the ball follows after the string breaks.

Arrow B

Explanation:

Arrow B best best represents the path the ball follows after the string breaks.

This is because the described situation is related to uniform circular motion, in which the tangential velocity is the linear velocity vector that is always tangent to the trajectory and is the distance traveled by the ball in its circular motion in a period of time.

Hence, if this circular motion suddenly stops, the ball will fly in a direction that is tangent to that circle.

the answer is b ) square root of 5

scattering of light by tiny particles in air to produce the colors we see on sky, is dependent on the following factors:

(i) wavelength of light

(ii) size of the scattering particle  

(iii) distance traveled by light through the atmosphere.

according to rayleigh's law of scattering, the amount of scattering is inversely proportional to the fourth power of its wavelength. shorter the wavelength, greater is its scattering. hence violet/blue light is scattered more than red.

sun's light is a composite light ( visible light) with wavelengths in the range 400 nm (violet) to 700 nm (red). as sunlight passes through our atmosphere, the molecules of air scatter light according to their wavelengths. during sunrise and sunset, the sun's position is below the horizon. hence light from the sun travels a greater distance in the atmosphere when compared to its position a noon.

as sunlight enters the earth's atmosphere, blue light is scattered away and at the end of its journey in the sky, only red and orange wavelengths remain in the beam.

hence at sunrise and sunset, the sky appears reddish orange.