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taurus [48]
3 years ago
5

A ring-shaped seal, made from a viscoelastic material, is used to seal a joint between two rigid pipes. When incorporated in the

joint, the seal is held at a xed compressive strain of 0.2. Assuming that the seal can be treated as a Maxwell model, determine the time before the seal begins to leak under and internal uid pressure of 0.3 MPa. It can be assumed that the relaxation time 0 of the material is 300 days and the short-term (instantaneous) modulus of the material is 3 MPa.
Engineering
1 answer:
scoundrel [369]3 years ago
3 0
I’m not sure what this question is talking about. I will get back to you later on this let me rethink it. 2.22578
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When your fixing a car, what is the first thing you want to do?
Shtirlitz [24]

Answer:

Changing oil.

Explanation:

You need to regularly check and change your car’s oil to ensure smooth running of the vehicle and to prolong the lifespan of its engine.

6 0
2 years ago
Water is being heated in a closed pan on top of a range whilebeing stirred by a paddle wheel. During the process 30kJ of heat is
My name is Ann [436]

Answer:

38 kJ

Explanation:

The solution is obtained using the energy balance:  

ΔE=E_in-E_out

U_2-U_1=Q_in+W_in-Q_out

U_2=U_1+Q_in+W_in-Q_out

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4 0
3 years ago
Differnence between boat and ship​
Blababa [14]

Answer:

a ship is a large vessel intended for oceangoing or at least deep-water transport, and a boat is anything else." Basically, a ship can carry a boat, but a boat cannot carry a ship

5 0
3 years ago
Read 2 more answers
Most farm equipment that attaches to a tractor is powered by its own independent motor.
Pavlova-9 [17]

Answer:

False

Explanation:

its self explanatory. a tracter pulls the equipment, so why power the equipment? the tracter is giving it free energy.

3 0
2 years ago
The force on a cutting tool are 2600N vertically downward and 2100 horizontal. Determine the resultant force acting on the tool
kolezko [41]

Answer & Explanation:

"The force <em>on a cutting tool</em> are 2600N vertically downward" sounds a little unusual, since most of the time, the tool is above the object to be cut in such a way that the force acting "ON the tool" is upwards.  We will accept the statement as it is (downwards).

Since the two forces are acting at right angles to each other, the resultant can be found using Pythagoras theorem, namely

resultant = sqrt(2600^2+2100^2) = 3342 N (approx.)

The angle can be found using the arcTangent function, or

angle = arcTangent(2600/2100) = 51.07 degrees below the horizontal, since the 2600 N force is acting downwards.

3 0
2 years ago
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