Consider the trough above the surface z=8y2 and below z=8, with −1≤x≤1. Find the moments of inertia around the x,y and z axis.

In: Mechanical Engineering

Please refer to the article titled as “Sustainable Construction Excellence for a Better Future in Malaysia, published in The Ingenieur, Vol. 69 January – March 2017 by the Board of Engineers Malaysia. Simplify and create a summary of the Article. (150 words)

In: Mechanical Engineering

Consider a shaft connected to motor at any location. Take its appropriate snaps. Assume that the shaft is failed and it has to be replaced. Measure all the required dimensions and variables required. Design and analyze a shaft considering

Static and Fatigue failure criteria, Factor of Safety, Manufacturing processes, Material properties

In: Mechanical Engineering

It is important to model spray break-up accurately. How does faster spray break-up affect vaporization rates? How does this affect non-premixed combustion? How does this affect premixed combustion?

In: Mechanical Engineering

**Why do we specify parts (fasteners, gears, bearings,
springs, and similar which are readily available
(ready-made)?**

In: Mechanical Engineering

**Are the mechanical design process “interactive” or
“iterative”? Explain by giving appropriate examples.**

In: Mechanical Engineering

You are asked to design a piping system to fill an Olympic size swimming pool. The nominal dimensions of the pool are 164 ft long, 82 ft wide and 6 ft deep, and the filling is to take place in 6 hours. The 60 F water supply is contained in a reservoir 75 ft below the nominal elevation of the pool and contains 500 feet of 6-inch diameter cast iron pipe with 4 standard 90° elbows and 1 (fully open) gate valve. The roughness of the pipe is expected to increase as e = e0 + at, where e0 is the roughness value when the pipe is new and a = 0.000168 ft/yr. What size pump (in hp) should be chosen in order for the design to last 20 years?

In: Mechanical Engineering

A rigid tank contains hydrogen and has a volume of 4.1
ft^{3}. It is initially at 87°F and 1,072 psia. Hydrogen
then leaks from the tank until it is 76°F and 158 psia. How much
heat transfer occurred into the tank, in Btu. Answer negative if
heat **left** the tank.

In: Mechanical Engineering

Consider an ideal gas-turbine cycle with two stages of compression and two stages of expansion. The pressure ratio across each stage of the compressor and turbine is 3. The air enters each stage of the compressor at 300 K and each stage of the turbine at 1200 K. Use variable specific heats. Assuming an efficiency of 86 percent for each compressor stage and an efficiency of 90 percent for each turbine stage. ( rbw=rbw= % ηth=ηth= % and ( rbw=rbw= % ηth=ηth= % |

In: Mechanical Engineering

There are 2 types of Fiber-reinforced composite
material. Continuous (aligned) and discontinuous(random or
aligned)

If we have aligned composite, how can we know it is discontinuous?
And what is difference with random discontinuous?

In: Mechanical Engineering

Why do we need to choose one configurations of strain gauges load
cells among many for an application. Discuss this in an essay. Your
answer should be supported with your conclusion based on your
acquired knowledge and supported with figures and mathematical
relations.

Please solve the question as soon as possible

In: Mechanical Engineering

Explain how Tesla, with the success of the upcoming Cybertruck, will disrupt the truck industry in terms of how trucks are manufactured and how they look.

In: Mechanical Engineering

There is an airfoil with a 3ft chord length for a small remote
controlled aircraft. The lift coefficient is C = 0.59 and the
pitching moment coefficient at a quarter chord length is
C_{m,c/4} = -0.032 for a landing spped of 45 ft/s at
sea-level std conditions

a) Calculate the lift per unit span (in lbf/ft)

b) Calculate the moment about the quarter chord position per unit span

c) Calculate the moment about the leading edge per unit span

d) If the weight of this small aircraft is 76 lb, what is the wing span required

In: Mechanical Engineering

'Dynamical Similarity of Turbulent Motion'

Topic related Fluid Mechanics

I need Data related to this topic, with proper
concepts .

Thank-you

In: Mechanical Engineering

When a sprinter is attempting to perform an all-out sprint as seen in the panel above, in order to maximize their linear velocity they will flex the knee more during the initial portion of the swing phase than the knee would naturally flex during this phase. This alters the moment of inertia of the leg in a way that ultimately leads to increased linear velocity of the foot at the instant before foot strike. Describe the steps in this process. 1) Define moment of inertia, and describe how it changes as the knee goes through exaggerated flexion during the swing phase. 2) Describe what effect this change has on the angular velocity of the leg about the hip through the swing phase. 3) How is the angular impulse altered about the hip, and what relationship does this have to the change in angular velocity?

In: Mechanical Engineering