The moon orbits the earth in an approximately circular path. the position of the moon as a function of time is given by x(t) = r cos(ωt) y(t) = r sin(ωt), where r = 3.84 108 m and ω = 2.46 10-6 radians/s. what is the average velocity of the moon measured over the interval from t = 0 to t = 6.5 days? find its magnitude, in m/s, and find its direction, given as an angle measured counterclockwise from the positive x-axis. magnitude how is average velocity calculated using initial and final time? given the times and functions for position, can you find initial and final positions? since average velocity is a vector quantity, how do you find its components, and from there its magnitude? make sure your calculator is in radian mode. m/s direction knowing the components of the average velocity, can you use trigonometric functions to find its direction? ° counterclockwise from the +x-axis

they are non-matter

explanation:

they are non-matter. basically, any type of energy or any abstract concept is an example of something that does not matter. other examples include dreams, magnetism, radio, and hate

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.

cancer risk hope this

continuous conducting path for current, power supply