When a uranium nucleus breaks up into fragments, which type of nuclear reaction occurs
2 answers:
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The answer is; C
These lines that join areas of equal pressure during an air system are called isobars. The black lines in the diagram below are the isobars. They are good indicators of the strength of these systems. The innermost closed lines indicate the positions of relative maxima (high-pressure areas) and minima (low-pressure areas) in the pressure field.
Answer:
The rate of heat loss through the wall is 1700 watts.
Explanation:
The complete statement of the problem is:
<em>The wall of an industrial furnace is constructed from 0.15-m-thick, fireclay brick having a thermal conductivity of 1.7 W/m·K. Measurements made during steady state operation reveal temperatures of 1400 and 1150 K at the inner and outer sur- faces, respectively. What is the rate of heat loss through a wall that is 0.5 m by 1.2 m on a side?</em>
Given that wall of the industrial furnace is under steady conditions of heat transfer and whose configuration is a flat element, we use the equation of conductive heat transfer rate (), measured in watts:
Where:
- Thermal conductivity, measured in watts per meter-Kelvin.
- Width of the wall, measured in meters.
- Height of the wall, measured in meters.
- Thickness of the wall, measured in meters.
- Inner surface temperature, measured in Kelvin.
- Outer surface temperature, measured in Kelvin.
If we know that ,
,
,
,
and
, the steady state heat transfer is:
The rate of heat loss through the wall is 1700 watts.