3) A train is composed of 47 freight cars, a caboose, and an engine. The engineis 25.5 m long, the caboose is half as long as the engine, and each freight car is2.0500 x 103 cm long. How long is the train?A) 1.00175-10° mB) 1.00175+ 10° mC) 1.00 T75- 10° mD) 9.63 8 83- 10* mE) 9.638 83+ 10° mF) 9.63883- 10* mG) the correct answer is not represented here, though there is enough information to find itH) there is not enough given information to solve this problem I) Here's an equation from the course that finds the magnetic field at the centerof a solenoid: B. = al You don't yet need to know anything about it to do thecalculation except that n is a counting index, µo is a constant from the PRC (see"Syllabus" area for the course), and if you don't have a n button on yourcalculator that's also on the sheet. Values you might get in a problem are:1= 2.34 An = 20r= 2.452 + 10-2 mSubstitute these into the equation and solve it for the field, B.A) B, = 3.8 T839-104TB) B. = 3.818 394 104TC) B. = 3.818 39. 104TD) B. = 2.2658 x 10- TE) B. = 2.26 58x10 TF) B. = 2.26 58 x 10TG) the correct answer is not represented here, though there is enough information to find itH) there is not enough given information to solve this problem2) The Martha's Vineyard 20-Miler is a running race in which participants withnothing better to do in the dead of winter go run 20.000 mi on an island. Manyraces are advertised in kilometers instead of miles (though they leave off the “m"in their advertisements, much to the chagrin of scientists and and anyone tryingto teach science). How long is the race in units of km?A) 3.21869+ 10' kmB) 3. Z 1869 • 10' kmc) 3.2T869. 10' kmD) 3.218 69. 10' kmE) 3.218 69.10' kmF) 3.21869. 10' km

(3) Given: The length of the engine is 25.5 m. The length of the caboose is half the length of the…

3) A train is composed of 47 freight cars, a caboose, and an engine. The engine is 25.5 m long, the caboose is half as long as the engine, and each freight car is 2.0500 x 10° cm long. How long is the train? A) 1.00175. 10° m B) 1.00175+10° m C) 1.00 T75- 10° m D) 9.63 8 83- 10* m E) 9.638 83+ 10° m F) 9.63883- 10ʻ m G) the correct answer is not represented here, though there is enough information to find it H) there is not enough given information to solve this problem

3) A train is composed of 47 freight cars, a caboose, and an engine. The engine is 25.5 m long, the caboose is half as long as the engine, and each freight car is 2.0500 x 10° cm long. How long is the train? A) 1.00175. 10° m B) 1.00175+10° m C) 1.00 T75- 10° m D) 9.63 8 83- 10* m E) 9.638 83+ 10° m F) 9.63883- 10ʻ m G) the correct answer is not represented here, though there is enough information to find it H) there is not enough given information to solve this problem

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 87AP: Magnetic field inside a torus. Consider a torus of rectangular cross-section with inner radius a and...

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