Review: P = W/At
W =Px Δt
t = W/P
Solve: The world's tallest lighthouse is located in Japan and is 106 m tall. A winch
that provides 3.00 x 10^2 W of power is used to raise 72.0 kg of equipment to
the lighthouse top at a constant velocity. How long (in minutes) does it take the
equipment to reach the lighthouse top?*
Your answer
This is a required question

i think the answer is a, hope this is right, that would be my best guess.

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.

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.

there are no atoms