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The sound intensity level at a rock concert is 115 dB, while that at a jazz fest is 95 dB. Find the ratio of sound intensity at the rock concert to the sound intensity at the jazz fest.
From the difference in mass of a hydrogen atom (Appendix B) to the mass of a proton and an electron (Table 1.5), estimate the binding energy of the electron in the hydrogen atom. Compare this to the ionization energy of the ground state electron a..
A 0.13 m segment of wire lies along the y-axis and carries a current of 3.8 A in the negative y direction. What is the force (magnitude and direction) on the segment of wire due to the magnetic field
A solid sphere rolling without slipping on a rough horizontal surface with a linear speed 21m/s collides elastically with a fixed, smooth vertical wall. Find the speed of the solid sphere after it has started pure rolling in the backward direction. T..
An electron follows a helical path in a uniform magnetic field of magnitude 0.642 T. What is the electron's speed
four point charges have the same magnitude of 3.2 times 10-12 c and are fixed to the corners of a square that is 6.8 cm
A bat hits a moving baseball. If the bat delivers a net eastward impulse of 1.3 N-s and the ball starts with an initial horizontal velocity of 3.8 m/s to the west, what is the mass of the ball
a catcher "gives" with a baseball when catching it. if the baseball exerts a force of 463 newtons on the glove such that the glove is displaced 14.9cm, how much work is done by the ball
A block (m=.75kg) is released from the top of a frictionless inclineed plane that has a height of 1.5m, How much energy was lost in the collision
The asymptotic wavelength
A Young's interference experiment is performed with blue-green laser light. The separation between the slits is 0.500 mm, and the screen is located 3.12 m from the slits. The first bright fringe is located 3.22 mm from the center of the interferen..
A resistor is connected to a battery with negligible internal resistance. by what factor does the power dissipated in the circuit change
If a violin string transmits waves at 375 m/s and has 295 Hz as its fundamental frequency, what is the string's length.
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