Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN: 9781305116399

Author: Raymond A. Serway, John W. Jewett

Publisher: Cengage Learning

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A car is traveling at a speed of 33 m/s. (a) What is its speed in kilometers per hour? (b) Is it exceeding the 90 km/h speed limit?

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After a ball rolls off the edge of a horizontal table at time t = 0, its velocity as a function of time is given by v=1.2i9.8tj where v is in meters per second and t is in seconds. The balls displacement away from the edge of the table, during the time interval of 0.380 s for which the ball is in flight, is given by r=00.3803vdt To perform the integral, you can use the calculus theorem [A+Bf(x)]dx=Adx+Bf(x)dx You can think of the units and unit vectors as constants, represented by A and B. Perform the integration to calculate the displacement of the ball from the edge of the table at 0.380 s.

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A garden snail named Archie, owned by Carl Branhorn of Pott Row, England, covered a 33-cm course in 2.0 min at the 1995 World Snail Racing Championships, held in Longhan, England (Fig. P1.13). Determine Archies average speed Sav = d/t in the appropriate SI units.

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An object's velocity as a function of time in one dimension is given by the expression; v(t) = 3.8t + 6.68 where are constants have proper SI Units. At what time is the object's velocity 61.2 m/s?

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Quinton can run 12 miles per hour. How many feet can he run per second?
A)1mile/5280
B) 1min/60sec
C)1hr/60

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2.
A car is traveling at a speed of 33 m/ssize 12{"33"" m/s"} {}. (a) What is its speed in kilometers per hour? (b) Is it exceeding the 90 km/hsize 12{"90"" km/h"} {} speed limit?
5.
Soccer fields vary in size. A large soccer field is 115 m long and 85 m wide. What are its dimensions in feet and inches? (Assume that 1 meter equals 3.281 feet.)
8.
The speed of sound is measured to be 342 m/ssize 12{"342"" m/s"} {} on a certain day. What is this in km/h?

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a) A robin flies a distance of 45 963 cm. How far has it flown in kilometres?(b) What is the speed in metres per second of a car that is travelling at 82 km/h? (c) What is the speed in kilometres per hour of a 27.78 m/s baseball pitch?(d) How many seconds are there in a calendar year, given that a calendar year has 365.24 days in it? T/I

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An object's position in the as a function of time obeys the equation;
x(t) = 14.2/t2.17 + 5.1t3
where all constants have proper SI Units.
What is the speed of the object in the x direction at t = 1.93 seconds?

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How much time t (in seconds) does it take light to travel from the Moon to the Earth, a distance D = 384,000 km? Assume the speed of light is c = 3.00x108 m/s.

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A jetliner can fly 4.8 hours on a full load of fuel. Without any wind, it flies at a speed of 2.68 x102m/s. The plane is to make a round trip by heading due west for a certain distance, turning around, and then heading due east for the return trip. During the entire flight, however, the plane encounters a 69.9 m/s wind from the jet stream, which blows from west to east. What is the maximum distance that the plane can travel due west and just be able to return home?

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An object's velocity as a function of time in one dimension is given by the expression; v(t) = 2.71t + 7.88 where are constants have proper SI Units. What is the object's velocity at t = 4.19 s?

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Science fiction often uses nautical analogies to describe space travel. If the starship U.S.S. Enterprise is traveling at warp factor 1.71, what is its speed in knots and in miles per hour'? (Warp 1.71 = 5.00 times the speed of light; speed of light = 3.00 x 108 m/s; 1 knot = 2030 yd/h.)

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