A toe sometimes appears as a unit of energy in various publications. One toe is a unit of energy defined as the amount of energy released by burning one tonne of crude oil and it equals (). How many joules are in toe?
A man sleeps hours a day on average. How many seconds on average does he sleep during the longest month of the year? Give the result in exponential notation.
Consider the information given in the table. Calculate the shortest distance between Neptune (the farthest planet from the Sun) and Mercury (the closest planet to the Sun).