Show the sum of the positive and negative charges

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Q. Aluminum oxide, Al2O3 can be produced during space shuttle launches. Show that the sum of the positive and negative charges in a unit of Al2O3 equals zero.

Q. A coffee filter of mass 1.2 grams dropped from a height of 3 m reaches the ground with a speed of 0.7 m/s. How much kinetic energy Kair did the air molecules gain from the falling coffee filter? Start from the Energy Principle, and choose as the system the coffee filter, the Earth, and the air.

Reference no: EM1356702

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