A glass optical fiber in a communications system has a diameter of 9.0 μm. a. What maximum force could this fiber support without breaking?

An amusement park ride consists of airplane-shaped cars attached to steel rods. Each rod has a length of 15 m and a cross-sectional area of 8.00 cm?. Take Young's modulus for steel to be Y = 2.0 x 1011 Pa. a. How much is the rod stretched (change in AL)when the ride is at rest? Assume that each car with two people seated in it has a total weight of 1900 N. b. When the ride is operating, it has a maximum angular speed of w = 8.0 rev/min. How much is the rod stretched then?

A rod 120 cm long and of a diameter 3.0 cm is stretched by a force of 18 kN. What is its stress? a. 20. 70 N/mm^2 b. 25.47 N/mm^2 c. 245 N/mm^2 d. 2,470 N/mm^2

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A fishing rope of length (74+ 50) m has the diameter (74 + 5) mm. When a weight of (74 +200) N is hung on the rope, the extension is (74 + 50) mm. Calculate,i. cross-sectional area of the fishing ropeii. strain

A 2.3-m-long, 1.0-mm-diameter steel string is pulled by a 4.8 × 103 N tension force. By how much is the string stretched, in mm? The Young's modulus for steel is 20 × 1010 N/m2. Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

You set up a Halloween prank by attaching a small board to a hinge above your front door. The far end of the board is held up by a cable that can be released by remote control. You place a spooky spider on the board that is dropped on unsuspecting trick-or-treaters when you release the cable. The drawing below shows the set-up. cable 40° Hinge 60 ст You use a board that is 60 cm long and the cable makes an angle of 40 degrees with the board when the board is held horizontally. You place the spider a distance of r = 37 cm from the hinge. The board has a mass of 2.2 kg and the spider has a mass of 1.6 kg. The hinge applies both a horizontal force and a vertical force. You will be asked to determine the direction of both of these forces (left, right, up, down). What is the magnitude of the tension in the cable in Newtons? T = What is the magnitude and direction of the horizontal force from the hinge? Enter a positive number for the magnitude. Fh = Direction ---Select--- What is the…

A 1.5-m-long, 1.0-mm-diameter steel string is pulled by a 3.1 × 10³ N tension force. By how much is the string stretched, in mm? The Young's modulus for steel is 20 × 10¹0 N/m². Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

A force stretches a wire by 1.0 mm.a. A second wire of the same material has the same cross section and twice the length. How far will it be stretched by the same force?b. A third wire of the same material has the same length and twice the diameter as the first. How far will it be stretched by the same force?

Hello, I need some help with this problem.