A golf ball is thrown at and bounces backward from a massive bowling ball that is initially at rest. After the collision, compared to the golf ball, the bowling ball has more
A) momentum, but less kinetic energy.
B) kinetic energy, but less momentum.
C) momentum and more kinetic energy.
D) need more information
Answer: A
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Which of the fields are physically impossible and why?
A. This field violates Faraday’s law. B. This field violates Gauss’s law. C. This field violates both of the above laws. D. This field is physically possible.
What layer of the Sun are we seeing in this photo?
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A very long string is tied to a rigid wall at one end while the other end is attached to a simple harmonic oscillator. Which of the following can be changed by changing the frequency of the oscillator?
A. The speed of the waves traveling along the string. B. The tension in the string. C. The wavelength of the waves on the string. D. All of the above. E. None of the above.
A +7.00 ?C point charge and -9.00 ?C point charge are placed along the x-axis at x = 0.000 cm and x = 40.0 cm, respectively
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