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A steel rod of 20 cm in length with Young's modulus of 180 Gpa is used for a tensile test. If the rod is elongated by 5 mm, (i) what is the magnitude of the stress built up in the specimen? and (ii) What would be the approximate value of modulus of rigidity of this sample?"
At what distance from a long, straight wire carrying a current of 8.5 A is the magnetic field due to the wire equal to the strength of Earth's field, approximately 5.4 x 10-5 T? The permeabilty of free space is 1.25664 x 10-6 T x m/A. Answer in uni..
One can not align the apparatus to eliminate entirely the effects of the Earth's magnetic field. calculate the component of the earth magnetic field perpendicular to the entering electron beam
An insect that is 5.90 mm long is placed 11.5 cm from a converging lens with a focal length of 12.0 cm. The position of the image is 276 cm from the lens and the size of the image is 141.6 mm. What is the angular magnification if the lens is close to..
A block with a mass of 1 kilogram is attached by a light weight, but strong rope to a second block with a mass of 2 kilogram. Obtain the tension in the rope between the masses
Two skaters, one with mass of 58 kg and the other with mass 41 kg, stand on an ice rink holding a pole of length 9.5m and negligible mass. Starting from the ends of the pole, the skaters pull them selves along the pole until they meet. How far doe..
The volume flow rate of the water supplied by a well is 1.53 x10-4 m3/s. The well is 31.8 m deep. Find the pressure difference the pump must maintain
hz is a discrete rational transfer function. to ensure that both hz and its inverse are stable itsa poles must be
A lawn mower has a flat, rod-shaped steel blade that rotates about its center. What is the rotational energy of the blade at its operating angular speed of 3480 rpm
A very large number (N+1) polaroids are arranged in a sandwich. Determine the output irradiance from the sandwich
A small steel sphere of mass 0.40kg is attached by a 5.0m long cord to a swivel pin set into the surface of a frictionless table top. What is the magnitude of the centripetal accerleration of the sphere
A 160 g ball on a 70.70 cm long string is swung in a vertical circle about a point 184 cm above the floor. The string all of a sudden breaks when it is parallel to the ground and the ball is moving upward. The ball reaches a height 543 cm above th..
Boiling Water at High Pressure. When water is boiled under a pressure of 2.00 atm, the heat of vaporization is 2.20 multiply.gif 106 J/kg, Compute the increase in internal energy of the water
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