Aboy throws a wooden stick in the air after spotting a bug at a distance of 2m from the end he is holding. while throwing, he gives an initial velocity of (3i+4j) m/s to that end and an angular velocity of 5k rad/s to the stick. the bug was moving towards the other end of the stick with the relative velocity of 2m/s. determine the absolute velocity of the bug immediately after the stick is thrown in the air. the end of the stick that was held in hand is where the coordinate frame is shown. also determine the coriolis component of acceleration of the bug

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.

the rearrangement of particles in a physical change. hope this