6. A 40.0 m long steel elevator cable has a cross-sectional area of 4.0×10^(-4) m^2 and is able to stretch 1.0cm before breaking. If the elevator itself has a mass of 1000 kg, how many 70.0 kg people can safely ride in the elevator? (Y_steel=2.0×10^11 N/m^2)    a. 14       b. 16       c. 12       d. 18       e. None of the above

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Q: In the figure below, what is the NET force on the -5.0 μC charge due to the other two charges? Note:…

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Q: 1. A +2nC charge is in a 200ON/C electric field. Find the electrostatic force on the charge. (5pts)

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Q: A 1.00 kg rock at rest is lifted a distance 5.00m above the ground for 3.00 s. What is the Power…

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Q: Explain free fall with example equation.

A: Explain free fall with example equation.

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Q: +7.45 μC 1.25 m , | 1.25 m P! 1.25 m +2.75 μC -1.72 μC

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A: Magnetic field, B = 0.125 T Velocity, v = 4.2 × 106 m/s Electric field, E = ? V/m

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Mechanical Properties of Solids

There are three types of matter- solid, liquid and gas. Out of them, solids have a rigid shaped and size. The intermolecular forces of attractions in solids are greatest. Mechanical properties are the physical properties of a material which it shows, when it is provided with certain amount of force or load. These properties are to be kept in mind for various purposes. When a force is applied to an object, the object may or may not get deformed depending upon its elastic property. But every time the object develops a restoring force against the force applied. This is commonly known as stress. If the object changes its dimensions due to the force applied it develops strain ( which is the ratio of change in dimension to the original dimension).