When a pendulum is at maximum displacement, which statement is true? the potential energy is at its greatest point. the potential energy is at its lowest point. the amplitude is at its lowest point. the frequency is at its greatest point.

How are isotopes of the same chemical element alike? how are they different?

Asample of freon gas has a volume of 2.23 liters, a pressure of 4.85 kpa, and a temperature of -1.36°c. calculate the volume at a pressure of 1.38 kpa and a temperature of 5.5°c. (show work)

#7 how does the structure of amino acids allow them to form a polypeptide? each amino acid has an amino group and a carboxyl group. each amino acid has a hydrogen atom and a carboxyl group. each amino acid has a carboxyl group and an r group. each amino acid has an r group and a hydrogen atom.