Maurice Tutor

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Teaching Since: May 2017
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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 17 Sep 2017 My Price 7.00

radius of gyration

Code the following problems in python to get the solution :
Part 1) A road roller has a total mass of 12 tonnes. The front roller has a mass of 2 tonnes, a radius of gyration of 0.4 m and a diameter of 1.2 m. The rear axle, together with its wheels, has a mass of 2.5 tonnes, a radius of gyration of 0.6 m and a diameter of 1.5 m. Calculate : 1. Kinetic energy of rotation of the wheels and axles at a speed of 9 km/h, 2. Total kinetic energy of road roller, and 3. Braking force required to bring the roller to rest from 9 km/h in 6 m on the level.
Part 2) A steam engine drop-valve is closed by a spring after the operation of a trip
gear. The stiffness of the spring is such that a force of 4 N is required per mm of compression. The
valve is lifted against the spring, and when fully open the compression is 75 mm. When closed the
compression is 30 mm. The mass of the valve is 5 kg and the resistance may be taken as constant
and equal to 70 N. Find the time taken to close the valve after the operation of the trip

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Maurice Tutor
(5)
Status NEW Posted 17 Sep 2017 06:09 AM My Price 7.00

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