Class Connection: Rigidity Affects Elastic Energy The stress that your body feels from moving around and jumping is the result of a constant series of energy conversions from kinetic and gravitational energy into elastic energy and back
again. With all of these energy conversions happening it is important to have shock absorbers that can handle the stress. This is especially important in your back, because so much of your
weight is supported there. In between each of your back bones (called vertebrae) are small circular pieces of cartilage called discs. These discs are responsible for distributing the impact that your body feels every time you take a step. With each step, pressure is put on these discs, compressing them and transforming kinetic energy into elastic energy. When the pressure is released, the discs decompress (return to their original shape), and their elastic energy is transformed back into kinetic energy. Do you remember the slow- motion videos you saw in class? Do you remember the ball that got compressed and then decompressed? That is what happens to your discs as you walk. What is amazing is that if you take care of your body, these discs will transform kinetic and gravitational energy into elastic energy and back for most of your life without wearing out. There are very few man- made materials that can be deformed so often without becoming less elastic, losing their ability to return back to their original shape.

Summarize this paragraph in 2-3 sentences. No links please or I will report it! And I will mark brainliest if it’s right

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.

another example of kinetic energy would be,

kinetic energy   >     moving energy

answer   >   letter choice (c),   a hammer falling off a table.

hope that !                                         : )

the answer is mosques. they are an important part of islamic culture.

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.