The low-pressure center of a hurricane is called the ______________
Fill in the blank(s) with correct word
eye
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Why is siltation such a pressing question for dam builders? Explain how you decided on your answer
What will be an ideal response?
Which of the following is NOT icy in composition?
A) comet nuclei B) Kuiper Belt Objects C) the polar cap of Mars D) asteroids E) most Jovian satellites
At its brightest, Venus, at magnitude -4, is 100 times brighter than a 1st magnitude star
Indicate whether the statement is true or false
Suppose the resistor is rotated so that its axis is aligned with the flow. What is the maximum permissible power dissipation?
GIVEN
• A heat generating resistor disk with its axis aligned with a cooling airflow
• Heat generation rate ( Q
G) = 2.5 W
• Disk diameter (D) = 1 cm = 0.01 m
• Disk thickness (t) = 0.6 mm = 0.0006 m
• Air temperature (T?) = 30°C
• Air velocity (U?) = 10 m/s
• Maximum surface temperature (Ts) = 90°C FIND
• The maximum permissible power dissipation ( Q G)
ASSUMPTIONS
• Heat transfer from the edges is negligible
• The heat flux is equal from both faces
SKETCH
