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How does Descartes' "quality of motion" differ from the modern
momentum?

What is magnetic flux? explain faraday's law of induction.

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.

Which component of the earth’s atmosphere is decreased due to photosynthesis?