A brass cube, 10 cm on a side, is raised in temperature by 150°C. The coefficient of volume expansion of brass is 57 × 10^-6/°C. By what percentage does volume increase?
a. 12%
c. 1.1%
b. 2.8%
d. 0.86%
D
Physics & Space Science
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The melting point of aluminum is 660°C, the latent heat of fusion is 4.00 × 105 J/kg, and its specific heat is 900 J/(kg K). How much heat must be added to 500 g of aluminum at 27°C to completely melt it?
A) 485 kJ B) 395 kJ C) 273 kJ D) 147 kJ E) 14 kJ
Physics & Space Science
The solar corona produces a lot more X-rays than it does visible light
Indicate whether the statement is true or false
Physics & Space Science
In the HCl molecule, the bonding electrons spend
a. equal time around both atoms. b. all their time around only one of the atoms. c. more time around the H atom. d. more time around the Cl atom.
Physics & Space Science
Explain why galaxy-galaxy interactions are far more common than star-star interactions
What will be an ideal response?
Physics & Space Science