If you go to the beach on a hot day, you may notice that a cool breeze blows from the sea onto the land. Explain why this breeze happens.

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Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present

Calculate a pendulums frequency of oscillation (in hz) if the pendulum completes one cycle in 0.5s.