Kinetic energy is conserved in
a. an inelastic collision.
b. an elastic collision.
c. any collision where two objects rebound off each other.
d. none of the above.
b
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The amplitude of a linearly damped harmonic oscillator decreases from 60.0 cm to 40.0 cm in 10.0 s. What will be the amplitude of the harmonic oscillator after another 10.0 s passes?
A) 20.0 cm B) 16.7 cm C) 30.0 cm D) 0.00 cm E) 26.7 cm
A proton starting from rest travels through a potential of 1.0 kV and then moves into a uniform 0.040-T magnetic field. What is the radius of the proton's resulting orbit? (mproton = 1.67 × 10-27 kg, e = 1.60 × 10-19 C)
A) 0.080 m B) 0.11 m C) 0.14 m D) 0.17 m E) 0.19 m
When a 24.0-W resistor is connected across a 12.0-V battery, a current of 410 mA flows. What is the resulting terminal voltage of the battery?
a. 11.6 V c. 0.4 V b. 9.8 V d. 12.0 V
Which statement about Schwarzschild radii is true?
A) The Schwarzschild radius of a black hole can be defined only in binary systems. B) The more massive the black hole, the smaller the Schwarzschild radius. C) The Schwarzschild radius of a black hole depends only on its mass. D) The Schwarzschild radius is used to describe the size of neutron stars.