kiểm tra bền của dầm tổ hợp sau: dầm đơn giản nhịp L=10m chịu tổng tải trọng phân bố đều tiêu chuẩn qtc=45kN/m, hệ số độ tin cậy của trọng tải bằng 1.15. Dầm có tiết diện chữ I ghép từ 3 bản thép kích thước mỗi bản là -300x16mm và bản bụng là -1000x8mm. Dầm làm bằng thép CCT34, hệ số điều kiện làm việc bằng 1. Hàn tay, que hàn N46
Answers: 1
Physics, 21.06.2019 22:30, djs1671
Laboratory experiments, observational field studies, and model-building are all examples of different forms of scientific investigations. in what way do laboratory experiments primarily differ from other forms of scientific investigations? a. a laboratory experiment is the only accepted form of investigation within the scientific community. b. studies about how things behave in nature or studies involving very large objects are best answered through laboratory experiments. c. laboratory experiments involve the identification and control of variables. d. data can only be generated through laboratory experiments, not other forms of investigation.
Answers: 3
Physics, 22.06.2019 15:50, bapefer498
Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?
Answers: 2
Physics, 22.06.2019 23:30, codnernae2423
An electric power distributor charges residential customers $0.10 per kilowatt-hour (kwh). the company advertises that "green power" is available in 150 kwh blocks for an additional $4 per month. (green power is generated from solar, wind power, and methane sources.) if a certain customer uses an average of 391 kwh per month and commits to one monthly 150 kwh block of green power, what is her annual power bill
Answers: 1
kiểm tra bền của dầm tổ hợp sau: dầm đơn giản nhịp L=10m chịu tổng tải trọng phân bố đều tiêu chuẩn...
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