At the Moment of a Total Eclipse, the Moon Lies

question 15

Short Answer

At the moment of a total eclipse, the moon lies along a line from the Earth to the sun. If your normal weight is 600 N, how much is your weight decreased by the combined pull of the sun and moon?
MSUN = 2.0 * 1030 kg,
rS-E = 1.5 *108 km
MMOON = 7.4 * 1022 kg,
rM-E = 3.8 * 105 km

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Definitions:

R Groups

The variable side chain attached to the alpha carbon of an amino acid that determines the amino acid's properties and its role in protein structure and function.

Peptide Bond

A distinctive covalent carbon-to-nitrogen bond that links amino acids in peptides and proteins.

Condensation Reaction

A chemical reaction where two molecules combine to form a single molecule, releasing a small molecule as a byproduct, such as water.

Polypeptide Chain

A linear organic polymer consisting of a large number of amino-acid residues bonded together in a chain, forming part of (or the whole of) a protein molecule.