An electron has a kinetic energy that is twice its rest energy. Determine its speed.
A. 0.76c
B. 0.81c
C. 0.94c
D. 0.54c
E. 0.87c
Answer: C
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Torque: A 95-N force exerted at the end of a 0.32-m long torque wrench produces a torque of 15 N ? m. What is the angle (less than 90°) between the wrench handle and the direction of the applied force?
A. 30° B. 24° C. 36° D. 42°
Galaxies sometimes have recession speeds that deviate somewhat from the exact speed predicted by Hubble's law. What do these so-called peculiar velocities reveal?
A) velocities due to the gravitational tugs of nearby galaxies or clusters of galaxies B) deviations in the rate at which the universe has been expanding at different times in the past C) These velocities indicate serious discrepancies with Hubble's law and with our view of an expanding universe. D) These velocities indicate that the expansion rate differs for different directions in space.
The acceleration of an object as a function of time is given by a(t) = (3.00 m/s3)t. If the object is at rest at time t = 0.00 s, what is the velocity of the object at time t = 5.00 s?
A) 15.0 m/s B) 37.5 m/s C) 0.00 m/s D) 12.0 m/s E) 75.0 m/s
A 40.0 liter gas tank is filled to the brim with gasoline when the temperature is 5.00
Gasoline has a coefficient of volume expansion of 
If the gas tank is moved into the sun of a hot summer day, the temperature of the gas tank is increased to 60.0 
What is the volume of gasoline that overflows the tank (ignore the expansion of the gas tank)?
A. 3.95 liters B. 3.11 liters C. 2.67 liters D. 2.09 liters E. 1.55 liters