25 sin 8t C/G A 4 lb weight stretches a spring 1 ft in equilibrium. An external force F(t) lb is applied to the weight, which is initially displaced 4 inches above equilibrium and given a downward velocity of 1 ft/s. Find and graph its displacement for t > 0.

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Q: what is the MMC of shaft dimension 1.375 /- .030?

A: Given: The dimension of shaft  is 1375/-0.30 MMC :MMC stand for  Maximum Material Condition.

Q: Write a CNC program code to machine this part.

A: Since the part is symmetrical, thus divide the given component into half and the half part.

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A: The bow drill was used in ancient period.

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A: The missing lines of the given views are shown below.

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A: Given Data No. of teeth is 27 Outside diamtere is 10mm

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.