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engineering
mechanical engineering
october 2019
08

Mechanical Engineering Questions and Answers October 08, 2019

Expert-verified solutions to help you succeed

A 7 5 - hp ( shaft output ) motor that has an efficiency of 9 1 . 0 percent is worn out and is replaced by a high - efficiency 7 5 - hp motor that has an efficiency of 9 5 . 6 percent. Determine the reduction in the heat gain of the room due to higher efficiency under full - load conditions. ( Round the final answer to three decimal places. ) The

Problem 1 ( 1 0 0 points ) The rod has a diameter of 1 0 0 mm . If it is subjected to the force system shown, a ) Show the internal loadings at A . b ) Find the stress components and determine the state of stress at point A . Moment of inertia of a full circl I = r 4 4 o r d 4 6 4 Centroid of a semi - circle: ? b a r ( y ) = 4 r 3 o r 2 d 3

Q 2 Problem 2 1 Point The red dot is an automobile driving at constant speed of 5 m s on the blue road. When Theta = 6 0 degrees, what is the magnitude of acceleration? To get the correct value of r you must use radians for Theta. Determine the magnitude of acceleration of the red dot. Solution lies in ( 4 , 1 2 )

A group at Clarkson is looking at designing a ducted propeller for use with a small UAV to be flown in air. The purpose of the duct is to reduce aerodynamic the tip losses to increase the thrust, ] , of the propeller. The propeller is characterize by the propeller diameter, D ( m ) , the exit diameter of the duct, d ( m ) , the propeller

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