Answer:
The following statements are true:
A. For flows over a flat plate, in the laminar region, the heat transfer coefficient is decreasing in the flow direction
C. For flows over a flat plate, the transition from laminar to turbulence flow only happens for rough surface
E. In general, turbulence flows have a larger heat transfer coefficient compared to laminar flows 6.
Select ALL statements that are TRUE
B. In the hydrodynamic fully developed region, the mean velocity of the flow becomes constant
D. For internal flows, if Pr>1, the flows become hydrodynamically fully developed before becoming thermally fully developed
Explanation:
Answer:
%Reduction in area = 73.41%
%Reduction in elongation = 42.20%
Explanation:
Given
Original diameter = 12.8 mm
Gauge length = 50.80mm
Diameter at the point of fracture = 6.60 mm (0.260 in.)
Fractured gauge length = 72.14 mm.
%Reduction in Area is given as:
((do/2)² - (d1/2)²)/(do/2)²
Calculating percent reduction in area
do = 12.8mm, d1 = 6.6mm
So,
%RA = ((12.8/2)² - 6.6/2)²)/(12.8/2)²
%RA = 0.734130859375
%RA = 73.41%
Calculating percent reduction in elongation
%Reduction in elongation is given as:
((do) - (d1))/(d1)
do = 72.14mm, d1 = 50.80mm
So,
%RA = ((72.24) - (50.80))/(50.80)
%RA = 0.422047244094488
%RA = 42.20%
57.5 m/s
I did 2.3/0.04
I’m not sure if it’s correct though
Answer:
Production Function : TFSq = f { ingredient 1 ...... ing. i }
Increasing/ Constant/ Increasing Returns to Scale :
Output change > / = / < Input change respectively
Explanation:
Production Function is the relationship between production inputs & outputs, given technology. It denotes the maximum output that can be generated with given inputs.
Tutti Frutti Smoothie [TFS] quantity = Function of {Ingredient1.....ingredient i}
Returns to Scale represents change in output when all inputs change in same proportion.
- Constant Returns to Scale [CRS] : Output Change = All inputs change
- Increasing Returns to Scale [IRS] : Output Change > All inputs change
- Negative Returns to Scale [NRS] : Output Change < All inputs change
When all inputs (ingredients) change by same proportion i.e get twice 2X :- If output of Tutti Frutti Smoothie increases by > 2X i.e 3X - IRS. If it increases equal ie 2X - CRS. If it increases lesser i.e 1.5X - CRS.
