Physics, 12.03.2020 20:31 katelyn0402
Select the tensile reinforcing needed for the T beams if the reinforced concrete is assumed to weigh 150 lb/ft3 and a live floor load of 140 lb/ft2 is to be supported. Assume 40-ft simple spans, fy = 60,000 psi, and f ? c = 3000 psi.
Answers: 2
Physics, 21.06.2019 14:20
Physics make-up packetname_cle14. an observer hears a sound with a frequency of 400 hz. if the speed of sound is 340 m/s,what is the wavelength of the sound? a. 0.85 mb. 1.2 mc. 2.75 m13.6 m15. as sound travels from steel into air, its speed decreases. if the frequency of the wavedoesn't change, what happens to its wavelength? a. it increases(b) it decreasesc. it remains the samed. there is not enough information given
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Physics, 22.06.2019 11:00
Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?
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Physics, 22.06.2019 15:00
What happens when a rubber rod is rubbed with a piece of fur?
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Select the tensile reinforcing needed for the T beams if the reinforced concrete is assumed to weigh...
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