The frequency of radiation from a Cesium-133 atom is 9,192,631,770 cycle/s
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cycles/s
The number of cycles of radiation in one second is
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The number of cycles during 1 mosquito wing beat,
i.e., the number of cycles in 
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×

=
×
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Answer:
humanity has a 95% probability of being extinct in 7,800,000 years
He performed an experiment that explain what occurred on primitive earth billions of years ago. He sent an electrical charge through a flask of chemical solution of methane, ammonia, hydrogen and water. This created organic compounds including amino acids
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Answer:
The bell of the stethoscope is used during auscultation to listen for low pitched sounds typical of a heart murmur.
Explanation:
Auscultation is a diagnostic test that listens to sounds from the heart, lungs, bowels, the circulatory system and other parts of the human body.
The stethoscope is an instrument that is designed for auscultation.
The diaphragm of the stethoscope listens for high pitched sounds typical of the bowels, a normal heart, and breathing.
The bell of the stethoscope listens for low pitched sounds typical of a heart murmur.