A 9.0-V battery moves 200 mC of charge through a circuit running from its positive terminal to its negative terminal. How much energy was delivered to the circuit?
a. 4.5 x 103 J
c. 2.2 mJ
b. 1.8 J
d. 0.18 J
Question 2
A model car is propelled by a cylinder of carbon dioxide gas. The cylinder emits gas at a rate of 4.5 g/s with an exit speed of 80.0 m/s. The car has a mass of 200 g, including the CO2 cylinder. Starting from rest, what is the car's initial acceleration?
a. 0.90 m/s2
c. 9.0 m/s2
b. 1.8 m/s2
d. 36 m/s2
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