3 years ago

I. Draw the velocity diagram for the instant shown and determine the velocity of

Engineering

1 answer:

trapecia [35]3 years ago

3 0

Answer:

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3 years ago

Consider an open loop 1-degree-of-freedom mass-spring damper system. The system has mass 4.2 kg, and spring stiffness of 85.9 N/

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Answer:

Damping ratio $\zeta =0.0342$

Explanation:

Given that

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4 years ago

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3 years ago

A rectangular plate casting has dimensions 200mm x 100mm x 20mm. The riser for this sand casting mold is in the shape of a spher

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Answer:

Diameter of riser =6.02 mm

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Given that

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Volume of rectangle V= 200 x 100 x 20 $mm^3$

Surface area of rectangle A

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So V/A=7.69

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$t=K\left(\dfrac{V}{A}\right)^2$ -----1

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Time for solidification of rectangle is 3.5 min then time for solidificartion of riser is 4.2 min.

Lets take $\dfrac{V}{A}=M$

$\dfrac{M_{rac}}{M_{riser}}=\dfrac{7.69}{\dfrac{d}{6}}$

Now from equation 1

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So by solving this d=6.02 mm

So the diameter of riser is 6.02 mm.

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3 years ago