(a) Sand dunes on a desert island move as sand is swept up the windward side to settle in the leeward side. Such "walking" dunes have been known to travel 16 feet in a year and can travel as much as 120 feet per year in particularly windy times. Calculate the average speed of 16 ftly in m/s. Next, calculate the average speed of 120 ftly in m/s. 1. (b) Fingernails grow at the rate of drifting continents, about 10 mm/yr. Approximately how long did it take for North America to separate from Europe, a distance of about 3000 miles?
(a) Sand dunes on a desert island move as sand is swept up the windward side to settle in the leeward side. Such "walking" dunes have been known to travel 16 feet in a year and can travel as much as 120 feet per year in particularly windy times. Calculate the average speed of 16 ftly in m/s. Next, calculate the average speed of 120 ftly in m/s. 1. (b) Fingernails grow at the rate of drifting continents, about 10 mm/yr. Approximately how long did it take for North America to separate from Europe, a distance of about 3000 miles?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:(a) Sand dunes on a desert island move as sand is swept up the windward side to settle
in the leeward side. Such "walking" dunes have been known to travel 16 feet in a year
and can travel as much as 120 feet per year in particularly windy times. Calculate the
average speed of 16 ftly in m/s. Next, calculate the average speed of 120 ftly in m/s.
1.
(b) Fingernails grow at the rate of drifting continents, about 10 mm/yr. Approximately
how long did it take for North America to separate from Europe, a distance of about
3000 miles?
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