A wire fixed at upper end

A uniform metallic rod rotates about its perpendicular bisector with constant angular speed. If it is heated uniformly to raise its temperature slightly, A its speed of rotation increases.

A wire fixed at the upper end stretches by length l by applying a force F. What is the work done in stretching? Facebook LinkedIn Pinterest. The elastic potential energy of a body is 1. Work done by the external force against the deforming force. Work done against the external force by the deforming force.

A wire fixed at upper end

A bob of mass 10 kg is attached to wire 0. Its breaking stress is 4. The area of cross-section of the wire is 10 -6 m 2. The maximum angular velocity with which it can be rotated in a horizontal circle is. A rubber cord 10 m long is suspended vertically. How much does it stretch under its own weight? A brass rod of cross-sectional area 1 cm 2 and length 0. The work done in stretching is. A one-metre long steel wire of cross-sectional area 1mm 2 is extended by 1 mm. A wire of diameter 1 mm breaks under a tension of N.

Check you scores at the end of the test.

Doc 17 Pages. Doc 21 Pages. Doc 7 Pages. Doc 23 Pages. Doc 26 Pages. Sign in Open App. A wire fixed at the upper end, stretches by length l by applying a force F.

Provided the amplitude is sufficiently great, the human ear can respond to longitudinal waves over a range of frequencies from about How far apart would the dots be in each set? Could you readily measure their separation with a meter stick? On December 26, , a great earthquake occurred off the coast of Sumatra and triggered immense waves tsunami that killed some , people. Satellites observing these waves from space measured km from one wave crest to the next and a period between waves of 1. Does your answer help you understand why the waves caused such devastation? Waves above this frequency can be used to penetrate the body and to produce images by reflecting from surfaces. For a good, detailed image, the wavelength should be no more than 1.

A wire fixed at upper end

Conversion Factors :. Example — A wire 2 m long and 2 mm in diameter, when stretched by weight of 8 kg has its length increased by 0. The wire is stretched by 0.

Lily labeau sharing bed

It is further stretched by another small length y. Text Solution. However wire 1 had cross sectional area A and wire 2 has cross sectional area 3A. Doc 21 Pages. Was this answer helpful? Recommended explanations on Physics Textbooks Physics. View answers on App. When stretched by a load, the net elongation is found to be 0. It is further stretched by another length y The work done in the second streaching is. Chapter 11 32 Solutions.

Use app Login. A perfectly elastic uniform string is suspended vertically with its upper end fixed to the ceiling and the lower end loaded with the weight.

Another wire, of same material as that of the first one, but of diameter 2 mm, breaks under a tension of : N N N N. Doc 7 Pages. B isothermal process. A wire of diameter 1 mm breaks under a tension of N. A one-metre long steel wire of cross-sectional area 1mm 2 is extended by 1 mm. A brass rod of cross-sectional area 1 cm 2 and length 0. The work done in stretching is A a 2Fl. Was this answer helpful? New User? Work done by A in one day is half of the work done by B in one day. A copper wire of 1mm diameter is stretched by applying a force on 10N. The ratio of work done in stretching them is. Chapter 10 URL copied to clipboard! Work done by B is half of the work done by C in one day.