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Ksivusya [100]
3 years ago
9

Which is the geometric mean between 81 and 4

Biology
2 answers:
rusak2 [61]3 years ago
8 0
Answer : 18

Good luck !
Lesechka [4]3 years ago
5 0

Answer:

The GM of 81and4, by definition, is √81×4=18 .

exploitation:

geometric mean of a and b = square root of (axb).

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Electromagnetic radiation is energy that travels in waves. Some examples of electromagnetic radiation are visible light, radio w
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Answer:

They all travel with the speed of light.

<em>Note: No options were provided in the question.</em>

Explanation:

Electromagnetic radiation are a group of waves which are are produced by the vibrations of electromagnetic fields. Electromagnetic waves/radiation possess the ability to travel through vacuum (i.e. they do not require a material medium for their propagation) while also carrying radiant energy. Electromagnetic fields which are the sources of electromagnetic radiation, exist as a result of the combination and interaction of travelling electric and magnetic field forces.

Electromagnetic radiations consists of the following waves: radio waves, infrared waves, visible light, ultraviolet rays, X-rays, and gamma rays. These waves have differing and unique properties such as wavelength, frequencies, ionizing properties, penetrating ability, sources as well as well as uses. However, they have a common property of velocity- they travel with the speed of light, 3.0 * 10⁸ m/s.

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Phosphorus

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an animal's body works to maintain its body temperature at a constant level, even when surrounding temperature changes. what typ
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Please read explanation section.  

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