3 years ago

The example of using biotechnology in heart surgery is used to illustrate which of the

Engineering

1 answer:

balandron [24]3 years ago

3 0

Answer:

There are many life-saving benefits of biotechnology.

Explanation:

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IV. An annealed copper strip 9 inches wide and 2.2 inches thick, is rolled to its maximum possible draft in one pass. The follow

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13.9357 horse power

Explanation:

Annealed copper

Given :

Width, b = 9 inches

Thickness, $h_0=2.2$ inches

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μ = 0.2, R = 14 inches, N = 150 rpm

For the maximum possible draft in one pass,

$\Delta h = H_0-h_f=\mu^2R$

$=0.2^2 \times 14 = 0.56$ inches

$h_f = 2.2 - 0.56$

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$=\sqrt{14 \times 0.56}$

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$\epsilon_T=\ln \left(\frac{2.2}{1.64}\right) = 0.2937$

Average true stress, $\overline{\gamma}=\frac{K\sum_f}{1+n}= 31305.56$ Psi

Roll force, $L \times b \times \overline{\gamma} = 2.8 \times 9 \times 31305.56$

= 788,900 lb

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Power = $\frac{2 \pi FLN}{60}$

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= 10399.81168 W

Horse power = 13.9357

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