Water is good for putting out fires because it has a very high latent heat of vaporization
a. True
b. False
Indicate whether the statement is true or false
True
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A gallon container is filled with gasoline. How many gallons are lost if the temperature increases by 25°F? (The volume expansion of gasoline is 9.6 × 10^?4 (°C)?1.) (Neglect the change in volume of the container.)
a. 2.4 × 10^?2 b. 1.3 × 10^?2 c. 3.6 × 10^?2 d. 4.8 × 10^?2 e. 9.6 × 10^?2
Annie Jump Cannon became famous for
A) developing our modern system for classifying stars. B) discovering the planet Uranus. C) discovering the planet Neptune. D) building the world's largest telescope.
A heating element having a resistance (at its operating temperature) of 148 ? is connected to a battery having an emf of 523 V and unknown internal resistance
It is found that thermal energy is being generated in the resistance of the heating element at a rate of 66.0 W. What is the rate at which thermal energy is being generated in the internal resistance of the battery?
A brass wire (d 5 2.0 mm, E 5 110 GPa) is pretensioned to T 5 85 N. The coefficient of thermal expan- sion for the wire is 19.5 3 1026/°C. The temperature change at which the wire goes slack is approximately:
(A) 15.7 °C
(B) 212.6 °C
(C) 112.6 °C
(D) 218.2 °C
