Engineering, 23.07.2021 22:30 cseiver420
Một đội kỹ thuật phụ trách việc bảo dưỡng cho 4 cột thu phát tín hiệu viễn thông. Cho biết rằng trong 1 định kỳ (6 tháng ) xác suất để mỗi cột trên gặp phải sự cố là 0,3; 0,25: 0,4: 0.35. Tính xác suất để 1 định kỳ nào đấy xảy ra sự kiện " có ít nhất 1 cột thu phát tín hiệu gặp sự cố đồng thời cột thứ 3 không gặp sự cố ''.
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Engineering, 03.07.2019 14:10
When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point
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Engineering, 04.07.2019 18:10
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
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Engineering, 04.07.2019 18:10
Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.
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Engineering, 04.07.2019 18:20
Describe one experiment in which the glass transition temperature and melting temperature of a totally amorphous thermoplastic material can be determined. show the relevant experimental results in a diagram which should be properly annotated with the two temperatures clearly marked. what is likely to happen to the curve in the diagram if the amorphous polymer is replaced by a thermosetting type?
Answers: 2
Một đội kỹ thuật phụ trách việc bảo dưỡng cho 4 cột thu phát tín hiệu viễn thông. Cho biết rằng tron...
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