Engineering, 17.02.2020 23:04, bobtothemaxthe1st
Assume that a single plate of cockpit window glass had a width of 300 mm at 20 °C and that at that temperature there was a clearance all around the glass of 0.5 mm. The lowest temperature in which the airplane needed to be able to survive was –30 °C (very extreme winter conditions at JFK airport). The highest temperature was 153 °C (temperature at the absolute maximum speed of Concorde, Mach 2.2).
i. Find the maximum and minimum sizes of the glass–aluminum gap that would occur in use.
ii. Assume that the sealant was silicone rubber (thermal coefficient of Silicone Rubber = 250x10^-6/K) and that it was under zero stress at 20 °C. What would be the maximum tensile and compressive stresses experienced by the sealant in operation?
Answers: 1
Engineering, 04.07.2019 18:10, ashleybaber4966
If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79
Answers: 1
Engineering, 04.07.2019 18:10, wyattlb97
Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?
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Engineering, 04.07.2019 19:10, phantomlizz3233
In general, how do thermosetting plastics compare to thermoplastics in mechanical and physical properties?
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Engineering, 04.07.2019 19:20, holaadios222lol
Apiping systems consists of 6 m of 6-std type k and 12 m of 4-std type k, both drawn copper tubing. the system conveys ethylene glycol at a rate of 0.013 m3/s. the pressure drop across the system is to be calculated. there are two 90° elbows in the 6-in pipe, a reduction from the 6-in pipe to the 4-in pipe and four 90° elbows in the 4-in pipe. all fittings are soldered (same as flanged) and regular. the inlet and outlet of the system are at the same height.
Answers: 1
Assume that a single plate of cockpit window glass had a width of 300 mm at 20 °C and that at that t...
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