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subject categories
engineering
mechanical engineering
march 2020
16

Mechanical Engineering Questions and Answers March 16, 2020

Expert-verified solutions to help you succeed

Define the multinomial coefficient (your answer must include the definition of factorial). State a result relating the number of trees on n vertices with specified degree sequence and multinomial coefficients. How many trees on 4 vertices have degree sequence (2, 2, 1, 1)? How many with (2, 2, 2, 1)?

A fire truck supplies 150 galmin of water to the third story of a building at B. If the friction loss through the 60 ftlong, 2.5in.diameter hose is 12 ft for every 100 ft of hose, determine the required pressure developed at the outlet A of the pump located within the truck close to the ground. Also, what is the average velocity of the water as it

Due to drought, the water level of a 10-acre pond is five feet below normal. If you wanted to fill the pond to normal capacity by using a hose connected to your kitchen faucet, how long would it take to fill the pond? Select an appropriate unit of time to report your answer.

A lumped model of a machine-tool drive system is shown in Fig. 3. The system parameters are: Jm=15 Nmshad, Bm-2 Nms/rad, m=4kg, k=2N/m, R=0.10m. The stiffness of the shaft is represented by a linear spring constant ks = 0.2 Nmhad. You can assume the friction force between the ground and the block to be equivalent to viscous damping with a

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