As a copper wire is heated, its length increases by 0.50%. What is the change of the temperature of the wire? (?Cu = 16.6 × 10^?6/C°)
a. 83.0°C
b. 301°C
c. 60.2°C
d. 226°C
e. 377°C
b
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Even though Titan has liquid methane on its surface, some internal heat, and plenty of carbon-containing compounds, it is not a suitable place for life because
A) Titan orbits within Saturn's radiation belt so its surface is completely sterilized by high-energy particles B) there is too much volcanic activity on the surface C) it has no ozone layer to protect the surface from harmful UV rays from the Sun D) it is far too cold, and methane is not a very good biological solvent
The specific heat of ice is 2.10 kJ/kg 
the heat of fusion for ice at 0
is 333.7 kJ/kg, the specific heat of water 4.186 kJ/kg 
and the heat of vaporization of water at 100
is 2,256 kJ/ kg. What is the final equilibrium temperature when 30.0 grams of ice at -15.0
is mixed with 8.00 grams of steam at 100
?
A. 65.6
B. 60.2
C. 56.2
D. 50.1
E. 45.2
The distance of Mars from the Sun is about 1.5 AU. How far is this in kilometers? (You do not need a calculator to answer this question. You do need to know what an AU is, within a factor of 1000.)
A) 1.5 150,000,000 km B) 1.5 150,000 km C) 150,000,000,000 / 1.5 km D) 150,000,000 / 1.5 km E) 1.5 150,000,000,000 km
A series LR circuit consists of a 2.0-H inductor with negligible internal resistance, a 100-ohm resistor, an open switch, and a 9.0-V ideal power source. After the switch is closed, what is the maximum power delivered by the power supply?
A) 8.1 W B) 0.090 W C) 0.81 W D) 81 W E) 0.40 W