An oscillator with a mass of 530 g and a period of .80 s, Ask an Expert

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Q. A potential difference of 104mV exists between the inner and outer surfaces of a cell membrane. The inner surface is negative relative to the outer surface. How a large amount work is required to eject a positive sodium ion (Na+) from the interior of the cell?

Q. An oscillator with a mass of 530 g and a period of .80 s has amplitude that decreases by 2 percent during each complete oscillation. At what time will the energy be reduced to 33 percent of its initial value?

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