In an inelastic collision, the initial kinetic energy is less than the final kinetic energy
Indicate whether the statement is true or false
FALSE
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A horizontal 2.5-cm-OD tube is maintained at a temperature of 27°C on its outer surface. Calculate the average heat transfer coefficient if saturated steam at 12 kPa is condensing on this tube.
GIVEN
? Saturated steam condensing on a horizontal tube
? Tube outside diameter (D) = 2.5 cm = 0.025 m
? Tube outer surface temperature (Ts) = 27°C
? Steam pressure (p) = 12 kPa
FIND
? The average heat transfer coefficient (hc)
ASSUMPTIONS
? Steady state
? Film condensation occurs
SKETCH
PROPERTIES AND CONSTANTS
From Appendix 2, Table 13, for saturated water at 12 kPa
Fontography is the study of the appearance and arrangement of characters.
Answer the following statement true (T) or false (F)
What do we mean by the "geological record"?
A) rocks from earlier periods of the Earth's history B) samples of meteorites that fell to Earth early in its history C) remains of ancient organisms preserved in rocks D) an album by the Rolling Stones
Two optically flat glass plates, 16.0 cm long, are in contact at one end and separated by 0.0200 mm at the other end. The space between the plates is occupied by oil with index of refraction 1.45. The index of refraction of the glass plates is 1.55
The plates are illuminated at normal incidence with monochromatic light, and fringes are observed. If the dark fringes are spaced 2.00 mm apart, what is the wavelength of the monochromatic light? A) 425 nm B) 475 nm C) 525 nm D) 675 nm E) 725 nm