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PhysicsCollege PhysicsIn 2015, the U.S. national debt was about $18 trillion. (a) If payments were made at the rate of $1 000 per second, how many years would it take to pay off the debt, assuming that no interest were charged? (b) A dollar bill is about 15.5 cm long. If 18 trillion dollar bills were laid end to end around the Earth’s equator, how many times would they encircle the planet? Take the radius of the Earth at the equator to be 6 378 km. ( Note: Before doing any of these calculations, try to guess at the answers. You may be very surprised.)BuyFind*arrow_forward*

11th Edition

Raymond A. Serway + 1 other

Publisher: Cengage Learning

ISBN: 9781305952300

Chapter 1, Problem 78AP

Textbook Problem

In 2015, the U.S. national debt was about $18 trillion. (a) If payments were made at the rate of $1 000 per second, how many years would it take to pay off the debt, assuming that no interest were charged? (b) A dollar bill is about 15.5 cm long. If 18 trillion dollar bills were laid end to end around the Earth’s equator, how many times would they encircle the planet? Take the radius of the Earth at the equator to be 6 378 km. (*Note:* Before doing any of these calculations, try to guess at the answers. You may be very surprised.)

College Physics

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