One mole of an ideal gas has a temperature of 25°C. If the volume is held constant and the pressure is doubled, the final temperature (in °C) will be
A. 174
B. 596
C. 50
D. 323
E. 25
Answer: D
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A car is driven 1200 m north at 20.0 m/s and then driven 1600 m east at 25.0 m/s. What are the magnitude and direction of the displacement for this trip?
a. 1400 m, northeast b. 2000 m, 36.9° north of east c. 2000 m, 53.1° north of east d. 2800 m, 36.9° east of north e. 2800 m, 53.1° east of north
What is the rotational inertia of a solid iron disk of mass 41.0 kg with a thickness of 5.00 cm and radius of 30.0 cm, about an axis through the center and perpendicular to it?
A. 0.980 kg 
B. 0.761 kg
C. 1.85 kg
D. 2.29 kg
The energy transported by a wave is proportional to the amplitude of the wave
Indicate whether the statement is true or false
An unknown resistor is wired in series with an ammeter, and a voltmeter is placed in parallel across the resistor only. This network is then connected to a battery
If one computes the value of the resistance by dividing the voltmeter reading by the ammeter reading, the value obtained A) is less than the true resistance. B) is greater than the true resistance. C) is the true resistance. D) could be any of the given answers. It depends on other factors.