The heat for welding can come from:

A) Friction B) Chemical reaction C) Electrical current D) All of the above


D

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What percentage of the world's population counts themselves as wireless subscribers?

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What is the role of the if statement?

What will be an ideal response?

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?The odd multiples of the third harmonic (third, ninth, fifteenth, twenty-first, etc.) are called _______________.

Fill in the blank(s) with the appropriate word(s).

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The dimensions of a rectangular duct with a lap seam are:  h = 32 cm; w = 28 cm; l = 85 cm; M = 0.9 cm.  What is the length of the stretchout in centimeters?

Fill in the blank(s) with the appropriate word(s).

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