How many constellations encompass the complete celestial sphere?
a. 88
b. 360
c. 180
d. 100
a
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A device that makes use of a bimetallic strip is
a. a thermometer. b. a thermostat. c. a choke control in an old automobile. d. all of the above. e. none of the above.
The air in an automobile engine at 20°C is compressed from an initial pressure of 1.0 atm and a volume of 200 cm3 to a volume of 20 cm3 . Find the temperature if the air behaves like an ideal gas (g = 1.4) and the compression is adiabatic
a. 730°C b. 460°C c. 25°C d. 50°C e. 20°C
If the current drawn from a 12 volt car battery is 100 amperes when it is short circuited with a wire, the resistance of the wire is 0.12 ohms
Indicate whether the statement is true or false
What is the orbital radius of the excited state in the Bohr model of the hydrogen atom? The ground-state radius of the hydrogen atom is 0.529 × 10-10 m
A) 0.477 nm B) 0.159 nm C) 0.382 nm D) 0.549 nm