So I am assuming that by "the following," you mean in general terms.
The shortest wavelength of the spectrum is the Gamma Ray waves, they are 400nm and are the most deadly, because of how often and frequent they are able to vibrate. Shorter the wavelength the more active.
So the list from "shortest," to "longest," is,
Gamma Ray, X-Ray, Ultraviolet, Visible, Infrared, Microwave, and Radio wavelengths.
In the spectrum, Radio has the longest and furthest traveling waves. This means that they are not harmful and that they can travel extreme distances.
Hope this helps!
Answer:
v= 17.15 m/s
Explanation:
mass of the book=0.1 Kg
height above ground, h= 15 m
Using conservation of energy
Potential energy is converted into kinetic energy
v= 17.15 m/s
Hence, the book will hit the ground at the speed of 17.15 m/s.
Answer:
4765 Km
Explanation:
The center of mass for a two point system is given by the formula:
CM= (mass earth x distance of cm to centre of earth + mass moon x distance of cm to moon ) / mass earth + mass moon
mass earth: 5.97 x 10^24 Kg
mass moon: 7.35 x 10^22 Kg
distance earth-moon = 384,400 Km : 3.84 x 10^6 m
The center of mass will be located between the line distance joining the earth moon but since we are told to calculate relative to the center of earth ,the distance from earth to the center of mass is cero making our calculations easier.
CM = (5.97 x 10 ^24 x 0 + 7.35 x 10 ^22 x 3.84 x 10 ^6 )/ (5.97 x 10^24 + 7.35 x 10^22)
CM= 7.35 x 10 ^22 x 3.84 x 10 ^6/ ( 6.04 x 10 ^24) m = 4.765 x 10 ^6 m = 4765 Km