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Physics, 21.06.2019 16:00, george27212
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 (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.
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When an object is heated it contracts. a. true b. false
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Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is
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How does an observation about an object differ from an inference about that object
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State at least one of Newton's laws of motion and explain how it applies
to the phenomenon observed...
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