A lepton interacts via the strong interaction
Indicate whether the statement is true or false
F
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Rotational Kinetic Energy: To drive a typical car at 40 mph on a level road for one hour requires about 3.2 × 107 J of energy. Suppose we tried to store this much energy in a spinning, solid, uniform, cylindrical flywheel. A large flywheel cannot be spun too fast or it will fracture. If we used a flywheel of diameter 1.2 m and mass 400 kg, what angular speed would be required to store 3.2 × 107 J?
A. 1800 rad/s B. 3600 rad/s C. 940 rad/s D. 530 rad/s E. 5500 rad/s
Potential energy is energy that an object possesses because of its
A. position B. motion C. temperature D. conductivity
During the 1960s and 1970s, scientists designed a spacecraft based on nuclear propulsion, but it was never built
Indicate whether the statement is true or false
To push a piece of heavy furniture across the carpet usually takes more force to get it moving than it takes to keep is moving. This is because
A) of Newton's first law. B) of Newton's second law. C) the static coefficient of friction is larger than the kinetic coefficient. D) the kinetic coefficient of friction is larger than the static coefficient. E) of Newton's third law.