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An electric current of one (1) ampere will deposit 0.0011180 g of silver each second from a water solution of silver nitrate. How many grams of silver will be deposited if the current is 1 * 10^-1 amperes and the time is one (1) hour and 20 minutes?
The speed of radio waves is 297,600 km per second. How much time is needed for the radio impulse to travel from a station to a radio if the distance between them is 1,280 km?
The D line or yellow line of the metal sodium has a wavelength of 5.89 * 10^-7 meter. If one (1) millimicron equals 1*10^-9 meter, express the wavelength of the D line in micromillions.
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