A physics student records the data in the table below during a 1-D motion experiment with constant acceleration. Unfortunately he forgets to properly label the table
before emailing it to his lab partners for analysis. As a result, they have to use their
knowledge of kinematics to figure out how the table is organized and what the rows
and columns represent. Use your knowledge of kinematics to select the correct
answer below. Assume that all units are Si (meters, seconds, meters/second, etc) even
though they are not shown.
7.000 0.00 3.0
7.031 0.01 3.1
7.062 0.02 3.2
7.095 0.03 3.3
7.128 0.04 3.4
The columns represent data at three different times

A) the columns represent data at three different times
B) the initial speed value is 7.0 meters per second
C) the acceleration is 10 m/s^2
D) the initial time value is 3.0 seconds

vapour or gas assuming atmospheriv pressure

small = small current large mag large current

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

hope this ! : )

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.