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A wave pulse travels down a slinky. The mass of the slinky is m = 0.85 kg and is initially stretched to a length L = 6.5 m. The wave pulse has an amplitude of A = 0.26 m and takes t = 0.432 s to travel down the stretched length of the slinky. The frequency of the wave pulse is f = 0.49 Hz.
What is the speed of the wave pulse?
What is the tension in the slinky? What is the average speed of a piece of the slinky as a complete wave pulse passes? What is the wavelength of the wave pulse?
Now the slinky is stretched to twice its length (but the total mass does not change). What is the new tension in the slinky? (assume the slinky acts as a spring that obeys Hooke's Law) What is the new mass density of the slinky?
A student stands on a platform that is rotating without friction at 1.2 rev/s. His arms are outstretched and he holds a brick in each hand. what is the new angular speed of the system
If the length of the field between goal lines in the Earth frame is 85.2 m, what length is measured in the rest frame of the particle
The intensity of an earthquake wave passing through the Earth is measured to be 2.5×106 at a distance of 55 from the source. At what rate did energy pass through an area of 3.0 at 1.0
A square loop 15 cm on a side in the xy plane. Its resistance is 0.55 ohms. determine the direction of the induced current in the loop
A bug crawls outward from the center of a compact disc spinning at 160 revolutions per minute. The coefficient of static friction between bug's sticky feet and disc surface is 1.10.How far does the bug get from the center before slipping.
As a crude model for lightning, consider the ground to be one plate of a parallel-plate capacitor and the cloud to be the other plate, What is the capacitance of the system
How much energy is necessary to bring the system back
An airplane is flying with the velocity of 82.0 at an angle of 22.0 above the horizontal. When the plane is a distance 111 straight above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far from the dog..
In a circut all six resistors share the same value R. Calculate the equivalent resistance between points A & B
a 500 g ball swings in a vertical circle at the end of a 1.5-m-long string. When the ball is at the bottom of the circle the tension in the string is 15 N. What is the speed of the ball at that point?
A transformer on a utility pole operates at an Vp = 8:5 KV rms on the primary side and supplies electric power to a number of nearby houses at Vs = 120 V rms. What is the turn ratio, Np=Ns, of this step-down transformer
A small cube, s=0.25m, sits on a surface where a uniform electric field of 250.0 N/C is directed downward at a 35.00 angle to the horizontal, Find the flux through either of the two sides for which flux is maximum
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