335 Answered Questions for the topic mechanical engineering

Mechanical Engineering Math Chemistry Physics

04/02/23

crystal lattice of a material

What is the crystal lattice of a material having the CFC crystal structure with a unit cell consisting of copper (Cu) and silver (Ag) atoms?how the choice of atoms that make up the crystalline... more
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Mechanical Engineering Math Algebra 1 Algebra 2

04/01/23

I have a boundary-value problem that need to be solved using laplace transform
∂^2u/∂x^2 = ∂^2u/∂t^2 + 2∂u/∂t + u , x>0 , t>0u(0,t) = sin 3t, t>0u(x,0)=0, ∂u/∂t |t=0 =0, x>0The answer is: u(x,t) = e^-x sin 3(t-x)u(t-x)
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Mechanical Engineering Math Chemistry Physics

04/01/23

How can I increase the packing factor and at the same time create more void space in a crystalline structure of a refractory material?
How can I optimize the packing factor and at the same time create more void space in a crystalline structure of a refractory material?
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Mechanical Engineering Math Physics Physical Science

03/26/23

Help-Calculate the conductivity of insulating material.
Example 3.38. An electric cable of 12 mm diameter is insulated to increase the current capacity. Due to insulation the current carrying capacity is increased by 15% without increasing cable surface... more
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Mechanical Engineering

03/08/23

How would you perform a flow test on a fuel system?
Step by step process in short
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Mechanical Engineering Physics

03/06/23

Torque and Friction
An 85 kg man is two-thirds the way up a an 8 m ladder that rests against a smooth wall (smooth means no friction) and has a mass of 25 kg and makes an angle with the ground of 50°. Find the force... more
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Mechanical Engineering Math Physics Electrical Engineering

03/05/23

How do I arrive at the wave function of a particle in a ring? Why would the answer be ψ = Ae^+-inθ and not one with sine or cosine?
How do I get to the particle wave function? . Consider a particle in a ring. For this example let the circumference line to extend from -L/2 to L2 with the end points glued together to form a... more
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Mechanical Engineering Math Physics Electrical Engineering

03/05/23

the ends x = ±L/2 are to be glued to form the circle.
We take the interval of length L to be in the range-L/2 < x < L/2The ends x = ±L/2 are to be glued to form the circle.-normalize Ψ-what is the probability that the particle in the ring has... more
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Mechanical Engineering Math Physics Electrical Engineering

03/04/23

help, Determine The de Broglie wavelength of an accelerating proton in the Large Hadron Collider
a) Determine The de Broglie wavelength of an accelerating proton in the Large Hadron Collider, where the proton has an energy of 3.5 TeV.b) using the following E2 = p2c2+m2c4 first, explain why... more
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Mechanical Engineering Physics

03/02/23

Piston P has a velocity upwards of 68.95 mm/s. Find the angular velocity of arms AB and BD when q=67deg..
https://imgur.com/a/yADcvhq
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Mechanical Engineering Physics

02/13/23

(a) What is the radius of said orbit? (b) What parameters are conserved throughout the orbit? Calculate one of them
A satellite is inserted into a circular Earth orbit with period = 8 hours. Answer to part a) r = 20,307 kmAnswer to part b) specific energy = -9.8142 km^2/s^2 & specific angular momentum = 89,... more
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Mechanical Engineering Math Algebra 2 Calculus

02/10/23

h(x)=x^2 +2x-9, g(-3)=2, g’(-3)=-6, f(x)=g(x)h(x) Find (dF)/(dX)|x=-39 F’(-3)= ????
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Mechanical Engineering Math Physics

02/02/23

Einstein Convention for Summations and Related Operations
Could someone please explain how the step marked in blue colour in image number 2(which can be found via:... more
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Mechanical Engineering

02/01/23

Two particles have a mass of 8 kg and 12 kg, respectfully. if they are 800mm apart, determine the force of gravity acting between them. compare this result with the weight of each particle.
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Mechanical Engineering

12/25/22

Can low water pressure from the city cause a water heater not to work?
Can low water pressure from the city cause a water heater not to work? Problem started Just since last night when the city starting having issues with the water pressure in the cold weather.
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Mechanical Engineering Econometrics Computer Engineering

12/08/22

Ferro Corporation, that manufactures high quality enamel products is considering investing $100,000 in two new enamels identified as X and Y...
1.     Ferro Corporation, that manufactures high quality enamel products is considering investing $100,000 in two new enamels identified as X and Y.  The investment in X is $20,000 and is expected... more
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Mechanical Engineering Econometrics Computer Engineering

12/08/22

The overall rate of return on $250,000 investment that returns 25% on the first $100,000 and 15% on the remaining $150,000 is closest to?
1.     The overall rate of return on $250,000 investment that returns 25% on the first $100,000 and 15% on the remaining $150,000 is closest to?(a)   22%           (b)... more
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Mechanical Engineering Econometrics Computer Engineering

12/08/22

The annual worth for years 1 through infinity of $75,000 now, $25,000 per year in years 1 through 15 and $40,000 per year in years 16 through infinity at a 10% interest per year is closest to
1.     The annual worth for years 1 through infinity of $75,000 now, $25,000 per year in years 1 through 15 and $40,000 per year in years 16 through infinity at a 10% interest per year is closest... more
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Mechanical Engineering Econometrics Computer Engineering

12/08/22

What is the difference between Mutually Exclusive and Independent Projects?

1.     What is the difference between Mutually Exclusive and Independent Projects?  2.     Define Rate of Return (ROR)3. Define Capitalized Costs (CC) and provide 2 real world examples that... more
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Mechanical Engineering Math Science Geography

12/06/22

The maximum effective precipitation for a basin is shown in the table below.

Determine the hydrograph. The basin has the following characteristics drainage area of 27 km2 , the length of the river is 8 km and the gradientTime (h) Precipitation (mm) 1 7 2 10 3... more
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Mechanical Engineering Math Calculus

12/01/22

Legendre Polynomial by Application of Recurrence Formula
Obtain the Legendre polynomial P6(x) by application of the recurrence formulan*(Pn(x)) = ((2n − 1)*x)*(Pn−1(x)) − (n − 1)*(Pn−2(x))assuming that P4(x) and P5(x) are known.
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Mechanical Engineering Science English Physics

11/13/22

how does torque relate to rocking chair?
how does torque relate to rocking chair?
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10/31/22

Hello, please help me with this problem
.model small .data msg1 db 10,13,"Enter first no.$" msg2 db 10,13,"Enter second no.$" msg3 db 10,13,"Result is:$" .code start: mov ax,@data mov ds,ax lea dx,msg1 mov ah,09H int... more
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Mechanical Engineering Chemical Engineering

10/23/22

How to calculate Steam Generator Pressure in this cycle if you only have one turbine inlet condition?
A simple, superheated Rankine cycle has turbine inlet temperature of 900 K and condenser pressure of 20 kPa. The turbine has efficiency of 92% and the pump has efficiency of 85%. If the overall... more
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Mechanical Engineering

10/11/22

determine the differential height of mercury between the two pipe sections.
Water flows through a horizontal pipe at a rate of 4 liter/s. The pipe consists of two sections of diameters 10 cm and 5 cm with a smooth reducing section. The pressure difference between the two... more
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