Calculus with Analytic Geometry I

1. About how many minutes will it take a pulse of light to travel from the sun to the earth? The speed of light is 299,792,458 m/s, which is 299,792.458 km/s. So this is the distance in km that light travels in a second. To find how many of these distances make up the distance to the sun, which is 149,597,870.7 km, take 149,597,870.7 / 299,792.458 = 499 number of these distances. So it takes 499 times the distance that light can travel in one second to make the distance from earth to...