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Section Tests
Calculators Linear Least Squares Regression Newton's Method Equation Solver

Problem 4 SolutionOne lightyear is the distance that light travels in exactly one year. If the speed of light is 6.7 x 10^{8} mph, convert lightyears to: a. miles b. meters (a) 5.9x10^{12} mi (b) 9.4x10^{15} m Solution Steps:We need to change 6.7x10^{8} miles in one hour to ?? miles in one year and then to ?? meters in one year. We'll need some conversion equations: 1 mi = 1.61x10^{3}m Notice that the last two equations can be combined to give: 1 yr = 8760 hr Here are the two calculations:

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