3 years ago

Why did fprtmiu78t7ty87uhyu

Engineering

1 answer:

alekssr [168]3 years ago

6 0

Yea why did fprtmiu78t7ty87uhyu

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Based on your reading of the following, how does a triple save a fire department in time?

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3 years ago

Select three types of lines that engineers use to help represent the shape of a design in a sketch.

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2 years ago

Consider tests of an unswept wing that spans the wind tunnel and whose airfoil section is NACA 23012. Since the wing model spans

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3 years ago

The following is a list of metals and alloys:

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3 years ago

Let A→=(150iˆ+270jˆ) mm , B→=(300iˆ−450jˆ) mm , and C→=(−100iˆ−250jˆ) mm . Find scalars r and s, if possible, such that R→=rA→+s

ioda

Answer: r = 0.8081; s = -0.07071

Explanation:

A = (150i + 270j) mm

B = (300i - 450j) mm

C = (-100i - 250j) mm

R = rA + sB + C = 0i + 0j

R = r(150i + 270j) + s(300i - 450j) + (-100i - 250j) = 0i + 0j

R = (150r + 300s - 100)i + (270r - 450s - 250)j = 0i + 0j

Equating the i and j components;

150r + 300s - 100 = 0

270r - 450s - 250 = 0

150r + 300s = 100

270r - 450s = 250

solving simultaneously,

r = 0.8081 and s = -0.07071

QED!

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3 years ago