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The speed of a wave on a string is 30 m/s. The string is 3.0 meter long and fixed at both ends. Find the lowest resonant frequency for this system?
(Hz)
If the mass of the string is 60 gram, find what is the tension in the string?
(N)
Find the average force if the car is stopped in a collision that brings the driver's seat to rest in 0.100 s, assuming the driver is restrained by a seat belt
Suppose that a small incandescent light bulb (R=2.88 kilo ohms) is connected to a standard European household AC electrical socket (240.-V rms voltage and 50.0 Hz frequency). find the average power dissipated by the light bulb
A spring-loaded gun, fired vertically, shoots a marble 6.4 m straight up in the air. What is the marble's range
A 3.00 kg block is released from rest at the elevated end A of a frictionless track that slopes down to a point B and continues horizontally to a point D, Find the work done on the block by the normal force exerted by the track
A particle undergoes a displacement Δr of magnitude 57 m in a direction 25° below the x axis. Express Δr in terms of the unit vectors x and y.
the trummelbach waterfall in switzerland has a height of approximately 400 m. assuming that all of the available
The electron beam inside a television picture tube is 0.4 mm in diameter and carries a current of 55 µA. What is the power delivered to the screen by the electron beam
A tortoise can run with a speed of 14.0 cm/s, and a hare can run 20 times as fast. What is the length of the race
You are approaching a stationary sound of 1000Hz at 35m/s. What is the change in frequency of the sound as you approach
A 1.00 kg object is attached to a horizontal spring. The spring is initially stretched by 0.200 m, What is the maximum speed of the object
Create a formula to get the time constant of the liquid level system shown in the below figure. When the avg. operating level is h0. The resistance R is linear.
a 100 MeV particle decays into two particles. one of these two particles has a mass of 10 MeV and a speed of 3/5. a) what are the mass and speed (in the initial particle rest frame) of the second particle
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