Answer:
25120 N
Explanation:
The external load acting on each bolted joint
= P x A / N
= (8 x 10⁶) (31.4 x 10³ x 10⁻⁶) / 10
= 25120 N
Answer:
The solution is given in the attachments.
Answer:
a. 33120MJ
b. 5.6
c. 48
Explanation:
∆U= 120,000 KJ/h
Since
1 day = 24 hrs
14 days =24 x 14 hrs
14 days = 336 hrs
∆U = 120000 x 336 KJ
=40320000KJ
K = 1000
M = 1000000
∆U = 403200 MJ
Work done
W= 2000 KW.h ( 1 h = 3600 s)
W= 7200 MJ
According to the first law of thermodynamics
∆U = Q+W
Q= 40320 - 7200 MJ
1)Qa=33120 MJ
Coefficient of performance
COP = ∆U/W
COP= 40320 / 7200
2)COP = 5.6
3)COP of ideal heat pump
Th/(Th - Tl)
Th = 15°C
Tl = 9°C
Convert Celsius to Kelvin
273 + 15 = 288
288/(15-9)
288/6
48
COP= 48
Answer:
c). Very little plastic and elastic deformation
Explanation:
Brittle failure is a sudden, very rapid crack where there is no sign of any plastic deformation or ductility. The failure is not stable unlike ductile failure and the the crack propagates very fast without any further increase of any stress. In brittle failure there is very little plastic deformation and low energy is absorbed before fracture takes place.
Thus, very little plastic and elastic deformation takes place in brittle failure.
