Suppose Sammy Sosa hits a home run which travels 361. ft (110. m). Leaving the bat at 50 degrees above the horizontal, how high
did it travel?
1 answer:
Answer:
The horizontal distance of Sosa is 276.526 ft or 84.28 meter.
Explanation:
As shown in the figure, let point O is the starting point of Sosa. She travels 361 ft at an angle 50 degree with the horizontal.
sin 50 =
0.7660 = h / 361
h = 276.526 ft
h = 84.28 meter
The horizontal distance of Sosa is 276.526 ft or 84.28 meter.
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Answer:
The convective heat transfer coefficient of the fluid is 170.4 watts per square meter-degree Celsius.
Explanation:
The Nusselt number () is a dimensionless factor which compares the sensitivity of a fluid due to convection with those due to conduction:
(Eq. 1)
Where:
- Convective heat transfer coefficient, measured in watts per square meter-degree Celsius.
- Conductive heat transfer coefficient, measured in watts per meter-degree Celsius.
- Characteristic length, measured in meters.
In addition, the characteristic length of a cylinder is defined by the following formula:
(Eq. 2)
Where:
- Radius of the cylinder, measured in meters.
- Length of the cylinder, measured in meters.
If we know that ,
,
and
, then the convective heat coefficient is:
From (Eq. 2):
And by (Eq. 1):
The convective heat transfer coefficient of the fluid is 170.4 watts per square meter-degree Celsius.