Engine oil at 100ºF passes through a 1/8 inch ID tube at 50 ft/min. Estimate the heat transfer to the oil per unit area of the tube if the inside surface temperature of the tube is 150ºF.
What will be an ideal response?
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Process of Science: In the discovery of quasars, the radio source 3C273 was found to have strong emission lines at wavelengths that did not correspond to any known element on Earth
Suppose a scientist postulated that they had discovered a new element that only existed in these powerful radio sources. How would you test this?
The ________ of a star is a measure of the total energy radiated by the star in one second
a. color b. apparent visual magnitude c. luminosity class d. spectral type e. luminosity
A 3.00-kg copper rod is 45.0 cm long at 24.8°C. If 45 000 J are transferred to the rod by heat, what is its change in length? ccopper = 387 J/kg/°C and ?copper = 17.0 × 10^?6/°C
a. 34.4 cm b. 0.0297 cm c. 0.133 cm d. 0.0445 cm e. More information is needed.
A body on the surface of the Earth weighs 400 lb. The radius of the Earth is about 4,000 miles. If this same body were placed on a 4,000-mile-high tower, its weight would be
a. 100 lbs. b. 200 lbs. c. 400 lbs. d. 800 lbs. e. 16,000 lbs.