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Anna71 [15]
3 years ago
13

The earth's interior heat and pressure drive a process of heat transfer in the mantle called _____.

Physics
2 answers:
Galina-37 [17]3 years ago
5 0
Convection. It is the transfer of heat by the circulation and movement of the molecules that come from liquid or gas.
almond37 [142]3 years ago
5 0
<h3><u>Answer;</u></h3>

Convection

The earth's interior heat and pressure drive a process of heat transfer in the mantle called <em><u>convection</u></em>.

<h3><u>Explanation;</u></h3>
  • <em><u>Convection is the process of heat transfer that occurs in fluid through convection current. This process may occur in a natural setting such as in the earth's mantle.</u></em>
  • <em><u>The plate tectonics in the earth surface are driven by the convection currents in the magma. The intense heat in the core of the earth causes molten rocks in the mantle to move in a pattern called convection cell that results from the cooling of the rising denser warm material which eventually sink.</u></em>
  • This transfer of the heat from the mantle to the surface of the earth by convection is similar to the hot water, which involves convection currents.
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Frequency determines the pitch we perceive. Amplitude determines the volume, and loudness perceived (see more detail below)

Explanation:

A most fundamental wave shape is the sine (or cosine). A sine wave has three parameters: (1) frequency, (2) phase, and (3) amplitude. Out of the three, two play a role in your question, as follows.

The frequency, namely the number of periods (repetitions) per second, is perceived by our ear of "the pitch." The higher the frequency, the higher the pitch. However, our ears perceive pitch as a logarithm of the physical frequency. Every doubling of the frequency causes us to hear the pitch to increase by one octave.

The volume is determined by the amplitude of the wave. The higher the amplitude (positive or negative) the higher the volume. Our ears perceive volume as "loudness" and, again, not linearly - some frequencies are perceived as louder than others, even though they have the same physical volume. Frequencies between about 200 and 2000 Hz are perceived as louder than the rest of the audible spectrum (between 20 and 20000 Hz).

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