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Q. Tsunamis can have wavelengths between 100 and 400 km. Since this is much greater than the average depth of the oceans (about 4.30 km ), the ocean can be considered as shallow water for these waves. In shallow water of depth (d) the speed of waves is approximately v=sqrt(g*d). Find the typical speed for a tsunami. (Note down that in the open ocean, tsunamis generally have amplitude of less than a meter, allowing them to pass ships unnoticed. As they approach shore, however, water depth decreases and the waves slow down. This can result in an increase of amplitude to so far as 37 m or more.)
The electric field in a region of space is oriented along the positive y axis. A circle of radius R is placed in xz-plane. The flux of the electric field by this circle is Φ. The same electric field passing through a second circle of radius 2R parall..
An electron librated from a hot filament cathode is attracted by an anode with a potential of 1200V positive with respect to the filament. Compute the speed of the electron when it strikes anode.
A 346-, uniform, 1.04- bar is suspended horizontally by two vertical cables at each end. Cable A can support a maximum tension of 506.0 without breaking, and cable B can support up to 436.0. You want to place a small weight on this bar. What is the h..
Sam, who's mass is 79 kg, takes off across level snow in his jet powered skis. The skis have a thrust of 204 N and a coefficient of kinetic friction on snow of 0.1. Unfortunatately the skis run out of fuel after only 13 s.
Find out the frequency of a sound wave moving through iron at 25 degrees Celsius with a wavelength of 0.601m.
Problem on elevator
What is the speed of the projectile immediately before it hits the ground if air friction does one and a half times as much work on the projectile when it is going down as it did when it was going up.
Jack is a second-grade student. He seems to have no interest in learning, frequently daydreaming in class and frequently disrupting the class by throwing objects at other students. Explain how a bio psychosocial approach may provide both an integrate..
After the ambulance passes, the observed frequency of the siren is 493 Hz. Conclude the ambulance's speeds from these observations.
What is mechanical energy
What is acceleration due to gravity
Now a peg is placed 4/5 of the way down pendulum's path so that when the mass falls to its vertical position it hits and wraps around the peg. As it wraps around the peg and attains its maximum height it ends a distance of 3/5 L below its starting po..
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