A wire fixed at upper end

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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. B its speed of rotation decreases. C its speed of rotation remains same. D its speed in increases because its moment of inertia increases. Boyle's law is applicable for an A adiabatic process. B isothermal process.

A wire fixed at upper end

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. The sum of work done by the external force and the deforming force. Which one option is true? Two wires have the same material and have the same volume. However wire 1 had cross sectional area A and wire 2 has cross sectional area 3A. The force F is so adjusted that the wire is only slowly stretched.

The wire C is stretched most and remains stretched even when stretching force is removed. We also use third-party cookies that help us analyze and understand how you use this website.

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.

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. What frequency sound is required for a good scan? What is the range of the wavelengths of audible sound in air?

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. A mild steel wire of radius 0. A metal wire 1 m long and of 2 mm diameter is stretched by a load of 40 kg.

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View All Videos. Determine the length of cable run in feet so that the cost of each installation would be the same. There will be soldered connections. Chapter 17 53 Solutions. Welcome Back. A steel scale measures the length of a copper wire as B isothermal process. View courses related to this question. You also have the option to opt-out of these cookies. A telephone switchboard pair cable can be made up with either enameled wire or tinned wire. We also use third-party cookies that help us analyze and understand how you use this website. A string of length L and force constant k is stretched to obtain extension l.

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. If a transverse wave is imparted to the lower end of the string, the pulse will: travel upwards with decreasing speed travelled upwards with constant acceleration travel upwards with increasing speed not travel along the length of the string.

View all explanations. Mechanical Properties of Solids. Chapter 9 Solutions. C isobaric process. Scan this QR code to download the app for Free. Chapter 16 Solutions. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. Two wires are made of the same material and have the same volume. However wire 1 has cross-sectional area A and wire 2 has cross-sectional area 3A. The Best you need at One Place. Work done in stretching done the wire is.