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What is an indication that a chemical reaction took place?
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The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (Ïallow)st = 200 mpa for the steel and ( Ïallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.
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What are the applications of electromagnetic waves
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Wavelength, frequency, and energy are related. what happens to a wave as itâs wavelength gets shorter?
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What is an indication that a chemical reaction took place?...
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