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Hi:

Outdoor pool motor enclosed in a waterproof wood box, one ventilation vent with fixed louvers on each wall of the box. Temperature exceeds 250 degrees F with the box fully closed and at some point thermal protection breaker shuts down the motor until temperature drops. Installed 18V (0.3A) solar powered PC fan on each wall (20W solar panel for each).. Scientific American thermometer is used to record temperature inside the enclosure. Question: trying to maximize removal of the heat generated by pump motor. Should each PC fan face outward (exhaust the heat)? One fan face outward, and the other face inward (one fan draws cooler air into the box, the other continues to exhaust the heat?) Flooding conditions in Florida required me to design a waterproof enclosure but the heat that builds is enough to trip the thermal breaker. Could not raise the pool motor concrete pad so had to design an enclosure.

Thank you.
How many heartbeats in a typical human lifetime?
When constructing a dam, the bottom of the dam is thicker than the top of the dam. The necessity of having a thick bottom is a result of
1 : the volume of the water behind the dam.
2 : the altitude of the body of water behind the dam.
3 : the depth of the water behind the dam.
4 : the community surrounding the dam
Archimedes' principle states
1 : the volume of an object placed in a liquid is equal to the weight of the liquid that is displaced.
2 : the volume of an object placed in a liquid is equal to the volume of the liquid that is displaced.
3 : an object placed in the fluid loses weight equal to the weight of the liquid that is displaced
4 : the weight of an object placed in a liquid is equal to the weight of the liquid that is displaced
The pressure on a submerged object acts
1 : only on the top surface of the object
2 : perpendicularly on every section of the submerged object
3 : only on the bottom surface of the object.
4 : on the top and the sides of the submerged object
Find the total force on the side of a water-filled tube 2.34 cm high with a radius of 0.300 cm.
1 : 0.506 N
2 : 0.0506 N
3 : 3.41 N
4 : 1.03 N
you can ride your bicycle at 30 kph (km per hour) over a 30 km race comprising two 15 km laps. However, when you finish the first lap, your coach tells you that your average speed so far is only 15 kph. How fast must you ride to bring your average speed up to 30 kph.?
A man challenges a former minor league baseball player to a snowball fight. The fight ends quickly, the man gets hit in the head by a snowball. Prior to collision, the mans head (5.5kg) was travelling at a rate of 5.0m/s [N]. The snowball (0.250kg) was travelling South 60 degrees of North at the speed of 35 m/s. The snowball sticks to the mans face after collision?
The orbital speed of electron orbiting around the nucleus in a circular orbit of radius 50Pm is 2.2x 106 m/s, the magnetic dipole moment of an electron is
A rigid rod is moving along in between the two incline planes as shown in figure. At this moment the velocity of the point A is v, velocity of point B will be