Kurt owns a particle (6.0 g) that he shoots at 4.0 km/s into the xy plane, in a region with a nk uniform magnetic field given by 5.0 i mt. at one instant, he notices that when the particle's velocity is directed 37â° counterclockwise from the positive direction of the x axis, the magnetic force on the particle is 0.48 k n. k fo a. what is the particle's charge? definite your coordinate system and draw the details of the 2 right-hand rule that support your choice of positive or negative charge. the magnetic field? the directions must be clearly depicted in the diagram! particle's () radius, (i) cyclotron frequency, and (i) pitch in b. what will kurt measure for the c. draw a diagram that is a good representation of the helical trajectory of the particle.

does anyone know or what?

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.

i would say