Am radio waves ultraviolet light x rays visible light what is true for all of the examples of electromagnetic waves? a) they all move at the same speed in a vacuum. b) they all have the same wavelength. c) they all have the same frequency. d) they all have the same energy.

The answer is; A

All light travels in the same speed of 3.0 * 10^8m/s in vaccum. However, the light is composed of a spectrum. They differ in their energy levels. Their respective energies influence their wavelength and frequency properties. The more the energy, the higher the frequency, and the shorter the wavelength.

d.) circle motion requires a force to give it a centripetal acceleration.

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

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