Answer:
Assuming steady state condition the temperature distribution is calculated as expressed in the attached solution below
Explanation:
Given data :
thickness : L , inner surface (x) : 0, uniform flux : q"o
fraction : β
volumetric heat generation : q˙(x)=(1−β)q''oα^e−αx
determine the temperature distribution in the quartz
attached below is the detailed solution
Answer:
a) 25.54 lb
b) No change
Explanation:
m = Mass of astronaut = 150 lbm
Weight of astronaut on earth = Mass × acceleration due to gravity on earth
= 150×32.18
= 4827 lbf
Weight of astronaut on moon = Mass × acceleration due to gravity on moon
= 150×5.48
= 822 lbf
a) On earth the mass in the spring scale shows 150 lbm because it is calibrated according to the acceleration due to gravity on earth. So, the weight of the astronaut shown on moon will be
Weight of astronaut on moon/acceleration due to gravity on earth
= 25.54 lb
b) Beam scale shows weight by comparing masses so there will be no change displayed on the beam scale.
Answer: (B) 100
Explanation:
Given that;
Pstatic = 20 psig , hz = 160ft, hf = 20ft
Now total head will be;
T.h = hz + hf
T.h= 160 + 20
T.h = 180ft
Minimum pressure = Psatic + egh
we know that specific weight of water is 62.4 (lb/ft3)
so
P.min = (20 bf/in² ) + (62.4 b/ft³ × 180 fr
P.min = (20 bf/in² ) + ( 62.4 × 180 × 1 ft²/144 in²)
P.min = 20 + 78
P.min = 98 lbf/in²
Therefore the minimum pressure rating (psi) of the piping system is most nearly B) 100