(a) Express the speed of light ( = 3 108 ) in miles () per microsecond (1 = 1609.344 ) and centimeters per nanosecond. (b) Twelve inches equals one foot (12 = 1), and one thousand millimeters equals one meter. How many cubic inches equal five cubic feet, how many cubic millimeters equal five cubic meters? (c) One millicentimeter is approximately equal to the duration of one month. Determine the exact duration of a millicentury in days. d) The SI unit of force F is the newton (1 = 1 ). Determine the SI units of the 2 constant in Newton's law of gravity: = 12 ( is the distance between the two 2 masses)

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