Write the governing equation and the necessary boundary conditions for the problem of a heat exchanger tube as shown in Figure 2-54.
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What would happen if the fusion rate in the core increased but the core could not expand?
A) The Sun's core would heat and the rate of fusion would increase further. B) The Sun's core would reach a new equilibrium, but at a higher temperature. C) The Sun's core would reach a new equilibrium, but at a cooler temperature. D) The Sun's core would cool and the rate of fusion would decrease.
Two 10¢ coins (dimes) carrying identical charges are lying 2.5 m apart on a table. If an electrostatic force of magnitude 2.0 N is exerted on each coin by the other coin,
how large is the charge on each coin? (k = 1/4??0 = 9.0 × 109 N ? m2/C2 ) A) 2.6 ?C B) 26 ?C C) 6.7 ?C D) 5.2 ?C E) 52 ?C
Specific heat capacity of ice = 2,000 J/kg-°C latent heat of fusion of water = 334,000 J/kg specific heat capacity of water = 4,000 J/kg-°C After the 1 kg block of ice melts, the amount of heat required to raise its temperature to 10°C is __________
Fill in the blank(s) with correct word
Newton's Second Law in 1 Dimension: On its own, a tow truck has a maximum acceleration of 3.0 m/s2. What will be its maximum acceleration when the truck is using a light horizontal chain to tow a bus of twice its own mass?
A. 2.5 m/s2 B. 2.0 m/s2 C. 1.5 m/s2 D. 1.0 m/s2