Something to do with how the suns magnetic field interacts with the surface plasmas I think.
The correct answer is A. Installation of rigid metal conduit requires grounding and the grounding equipment used may weaken the structure.
<span>There's nothing on that list that may be damaged by increase in solar activity.
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Answer: 0.392 m/s
Explanation:
The Doppler shift equation is:

Where:
is the actual frequency of the sound wave
is the "observed" frequency
is the speed of sound
is the velocity of the observer, which is stationary
is the velocity of the source, which are the red blood cells
Isolating
:


Finally:

Its a thermometer . i hope this helps you