Suppose a tightrope walker creates a tension of 3.94 × 103 N making an angle of...
Suppose a tightrope walker creates a tension of 3.94 × 103 N making an angle of 5° below the horizontal from each supporting pole.
Calculate how much this tension stretches the steel wire if it was originally 14 m long and 0.43 cm in diameter. Assume steel has a Young's modulus of 2.10 × 1011 N/m2. Give your answer in cm.
Homework Answers
Young's Modulus 
Given that, Tension in wire 
Length of wire 
Radius of wire 
Young's modulus of steel 
Stretch in steel wire is 
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Suppose a tightrope walker creates a tension of 3.94 × 103 N
making an angle of...
(14%) Problem 7: Suppose a tightrope walker creates a tension of 3.94 x 103 N making an angle of 5° below the horizonta...
(14%) Problem 7: Suppose a tightrope walker creates a tension of 3.94 x 103 N making an angle of 5° below the horizontal from each supporting pole Calculate how much this tension stretches the steel wire if it was originally 16 m long and 0.43 cm in diameter. Assume steel has a Young's modulus of 2.10 x 101 N/m2. Give your answer in cm. Grade Summary AL = 0.31 Deductions 3% Potential 97% sin( cotan cos Submissions tan 7 НОМE...
Steel Young's Modulus (Y) 20 X 1010 N/m2 Shear Modulus (S) 8.1 X 1010 N/m2 Bulk...
Steel Young's Modulus (Y) 20 X 1010 N/m2 Shear Modulus (S) 8.1 X 1010 N/m2 Bulk Modulus (B) 16 X 1010 N/m2 The table to the above represents various properties of steel. You have steel wire 4.4 meters in length that stretches 0.12 cm when subjected to a force of 300 N. 1)What is the diameter of the wire? d1 =__________ cm 3)What would the diameter of the wire be if you wanted the wire to stretch 0.06 cm less...
8· ㅢ1 points OSC0IPhys2016 5.3.WA,049 My Notes The pole in the figure below is at a...
8· ㅢ1 points OSC0IPhys2016 5.3.WA,049 My Notes The pole in the figure below is at a 90° bend in a power line and is therefore subjected to more shear force than ones in straight parts of the line. The tension in each line is 3.00 x 104 N, at the angles shown. The pole is 15.0 m tall, has a 15.0 cm diameter, and can be considered to have half the strength of hardwood. Assume Young's modulus to be 7.5...
Steel is very stiff, and Young's modulus for steel is unusually large, 2 × 1011 N/m2....
Steel is very stiff, and Young's modulus for steel is unusually
large, 2 × 1011 N/m2. A cube of steel 17 cm
on a side supports a load of 58 kg that has the same horizontal
cross section as the steel cube.
(a) What is the magnitude of the "normal" force
that the steel cube exerts on the load?
F=
N
(b) What is the compression of the steel cube?
That is, what is the small change in height of...
(205) Problem 5: Suppose a piano tuner stretches a steel piano wire 5.5 mm. The wire...
(205) Problem 5: Suppose a piano tuner stretches a steel piano wire 5.5 mm. The wire was originally 0.775 mm in diameter, 1.29 m long, and has a Young's modulus of 2.10x10' N/m². Randomized Variables lo = 1.29 m 1=5.5 mm d=0.775 mm Calculate the force a piano tuner applies to stretch the steel piano wire in Newtons. Grade Summary Deductions Potential 100% ) 7 8 9 sin cotano cos asino t an) acos() 4 5 6 Submissions Attempts remaining:...
use UNITS for all final answers no collaboration, no talking to each other is allowed you...
use UNITS for all final answers no collaboration, no talking to each other is allowed you can use your book and your calculator, but nothing else! (1) 10 points Three identical charges (q- -4.8 pC) lie along a circle of radius 2.0 m at angles of 30°, 150°, and 270°, as shown in the figure. (a) What is the resultant electric field at the center of the circle (magnitude and orientation)? (b) What is the electric potential at the center...
(14%) Problem 7: Suppose a tightrope walker creates a tension of 3.94 x 103 N making an angle of 5° below the horizontal from each supporting pole Calculate how much this tension stretches the steel wire if it was originally 16 m long and 0.43 cm in diameter. Assume steel has a Young's modulus of 2.10 x 101 N/m2. Give your answer in cm. Grade Summary AL = 0.31 Deductions 3% Potential 97% sin( cotan cos Submissions tan 7 НОМE...
8· ㅢ1 points OSC0IPhys2016 5.3.WA,049 My Notes The pole in the figure below is at a 90° bend in a power line and is therefore subjected to more shear force than ones in straight parts of the line. The tension in each line is 3.00 x 104 N, at the angles shown. The pole is 15.0 m tall, has a 15.0 cm diameter, and can be considered to have half the strength of hardwood. Assume Young's modulus to be 7.5...
Steel is very stiff, and Young's modulus for steel is unusually
large, 2 × 1011 N/m2. A cube of steel 17 cm
on a side supports a load of 58 kg that has the same horizontal
cross section as the steel cube.
(a) What is the magnitude of the "normal" force
that the steel cube exerts on the load?
F=
N
(b) What is the compression of the steel cube?
That is, what is the small change in height of...
(205) Problem 5: Suppose a piano tuner stretches a steel piano wire 5.5 mm. The wire was originally 0.775 mm in diameter, 1.29 m long, and has a Young's modulus of 2.10x10' N/m². Randomized Variables lo = 1.29 m 1=5.5 mm d=0.775 mm Calculate the force a piano tuner applies to stretch the steel piano wire in Newtons. Grade Summary Deductions Potential 100% ) 7 8 9 sin cotano cos asino t an) acos() 4 5 6 Submissions Attempts remaining:...
use UNITS for all final answers no collaboration, no talking to each other is allowed you can use your book and your calculator, but nothing else! (1) 10 points Three identical charges (q- -4.8 pC) lie along a circle of radius 2.0 m at angles of 30°, 150°, and 270°, as shown in the figure. (a) What is the resultant electric field at the center of the circle (magnitude and orientation)? (b) What is the electric potential at the center...
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