335 Answered Questions for the topic mechanical engineering

Mechanical Engineering Algebra 1 Calculus Precalculus

06/15/20

Find the values of a and b such that the function is continuous on interval (-∞,∞).
The function is a piecewise function: acosx + 2 if x < 0{ be3x +ax2 if x ≥0
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Mechanical Engineering

06/10/20

static and dynamics
The distance between two supports of leaf spring of a truck is 150 cm. Leaf spring set is subjected to 800 kg load.( σallow for spring= 300 MPa). (Height= 1 cm and width=5 cm) Determine the... more
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Mechanical Engineering

06/10/20

strength and dynamic
The yield strength of the steel key and shaft is σY= 400 MPa. 32.5 Nm torque is applied to shaft. Determine if the loadings cause the key to fail ?(Diameter of shaft=10 mm, height of the key=5 mm,... more
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Mechanical Engineering Math Physics

06/07/20

Why is the measured and calculated value of a projectile different?
I took 5 different values from my catapult and the average distance of the projectile is 3.64 meters however, the calculated value is 3.79 meters. I understand that some deviation is inevitable but... more
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Mechanical Engineering Math Physics Projectile Motion

06/06/20

How to find the initial velocity from this setup?
Hello I'm given an assignment to build a homemade catapult which I already have, and I'm required to determine the initial velocity of a projectile.To do this, I'm told to place my phone and ensure... more
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Mechanical Engineering Physics

06/06/20

How do you measure the initial velocity of a projectile from this experimental setup?
Hello I'm given an assignment to build a homemade catapult which I already have, and I'm required to determine the initial velocity of a projectile. To do this, I'm told to place my phone and... more
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Mechanical Engineering

06/03/20

high school engineering

. The total cost of a gadget including material, labor, process, packaging and shipping comes to $3.29 perunit. How many gadgets must be sold at $4.99 in order to see a profit of $5000?
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Mechanical Engineering Chemical Engineering

05/21/20

thermodynamic Problem!!
An inventor claims to have developed a novel heat pump that can, when operating steadily, deliver 100 kW of heat to a building at 40°C whilst consuming 10 kW to drive the unit. Assuming that the... more
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Mechanical Engineering Math Calculus

05/18/20

math Problem.. Please help!!
Obtain the 3x3 transformation matrix that first scales a two-dimensional object bya factor of 2 in the x-direction and then reflects the modified object in the y-axisand finally translates the... more
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Mechanical Engineering Math Physics

05/16/20

What should I do?
A car of mass 700 kg is moving along a straight horizontal road. At the instant when the speed of the car is v m s−1, the resistance to the motion of the car is modelled as a force of magnitude... more
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Mechanical Engineering Chemistry Thermodynamics

05/08/20

Hi, I need help on part e. I don't understand how to do it
Determine the following of the complete combustion of pentane (C5H12):a) What is the balanced chemical equation?b) What is the air-fuel ratio for the equation in part a?c) What is the balanced... more
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Mechanical Engineering Physics Civil Engineering Statics

05/01/20

Maximum deflection of a beam
Imagine having a equation of a beam as follows and we have to solve this for x. Note that the [] square brackets denote terms involving Macaulay's notation.How do we solve for x when Macaulay's... more
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Mechanical Engineering

04/29/20

Mechanical engineering question
There is a plant growing at a constant mass rate (kg/s). It develops into a large tree that has radius r(t) that grows thicker over time and maintains constant vertical deflection at one end. How... more
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Mechanical Engineering Physics Civil Engineering

04/28/20

Structural Analysis/beams/deflection
Question :The cantilever beam AB of length L carries a uniformly distributed W load , which includes the weight of the beam.(Note that the left end end A is free , while right end has a fixed... more
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Mechanical Engineering Solidworks

04/16/20

yield strength compare to max stress
how does the max stress experienced compare to the yield strength of the material and what does this mean in practical terms ? is the part also fit for purpose ?the part is a carabiner max stress... more
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Mechanical Engineering Math Calculus Chemical Engineering

04/10/20

Can someone please help me with this? I have to find a solution using Wronskian and I'm having a very difficult time.

Given y1, can you find y2? Find y1y'2 - y'1y2 = W(t). Answer choices: 1. y2 = ty1 2. y2 = y1∫W(t) dt 3. y2 = y1 (c+∫(W(t)/y1^2) dt 4. y2 = y1∫(W(t)/y1) dt
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Mechanical Engineering Engineering

04/09/20

A pulley system with an IMA of 3 is being used to lift a 300 pound object. What is the Minimum amount of force that must be applied to the system to lift the object?
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Mechanical Engineering Civil Engineering Statics

03/01/20

Deflection/stress/torque in a horizontal crane
I made a google drive link to the problem (as I cannot paste images on here): https://drive.google.com/file/d/1r9vwwLlm0KNfPZJfgtfgu6KW6wBKw9Ym/view?usp=sharingHow would you set up this problem? If... more
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Mechanical Engineering Physics

02/25/20

plz help im crying
n a factory, various metal pieces are forged and then plunged into a cool liquid to quickly cool the metal. Assume you have a cadmium rod, with a specific heat of 0.231 joules per gram degrees... more
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Mechanical Engineering Math Physics Civil Engineering

02/24/20

Deflection of Beams
How do we find the relevant boundary conditions when finding deflection of beams using double integration method?
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Mechanical Engineering Materials Manufacturing

02/19/20

manufacturing using rivets

what types of materials can be processes in this way ?the characteristics of the components which are produced (Shape size dimensional tolerance) ?economics of the process ?im not sure how to... more
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Mechanical Engineering Business Marketing Project Management

02/10/20

Business Project

HI! My group and I are working on a business project and need advice. We are using NASA's patent: https://technology.nasa.gov/patent/KSC-TOPS-1 to create a coating to prevent/detect/heal corrosion.... more
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Mechanical Engineering History American History

02/09/20

Gilded Age APUSH
how did a train engineer live during the time glided age? What types of issues might they support/oppose? Could they have had any particular troubles?
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Mechanical Engineering Math Physics Civil Engineering

02/05/20

Equilibrium of forces
How do we show that a system of forces is equivalent to a wrench?
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Mechanical Engineering Math Physics Civil Engineering

02/04/20

Equilibrium of a particle

a particle whose weight W rests on a smooth inclined plane under the action of a horizontal force P. The particle can also be kept in equilibrium on the plane by applying a force Q along the plane... more
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