Homework Statement
Objects A and C are made of different materials, with different “springiness,” but they have the same mass and are initially at rest. When ball B collides with object A, the ball ends up at rest. When ball B is thrown with the same speed and collides with object C, the ball...
Yes, I tried it (f=nv/4L) with n equal to one and the online assignment page said that it was wrong and then when I used the open-open formula (f=nv/2L) with n equal to one, the website said that the answer was correct. I was assuming that it was an error with the answer, but I just wanted to...
Homework Statement
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A student uses an audio oscillator of adjustable frequency to measure the depth of a dried up well. Two successive resonances are heard at 17.0Hz and 23.8Hz. The speed of sound in air is 343 m/s. How deep is the well?Homework Equations
f=nv/4L
The Attempt at a Solution...
Aren't they created when the reflections of light interact by constructive and destructive interference? Which is caused by some light rays moving a further or lesser distance.
Homework Statement
One microscope slide is placed on top of another with their left edges in contact and a human hair under the right edge of the upper slide. As a result, a wedge of air exists between the slides. An interference pattern results when monochromatic light is incident on the...
Homework Statement
The angle of a pendulum is θ(t)=(0.270rad)cos(4.00t+1.00π), where t is in seconds.
Determine the initial angular velocity.
Homework Equations
ω=2πf
The Attempt at a Solution
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I solved for the frequency, which was 6.37E-1 Hz and subbed it into the formula above and...