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Estimate the velocity of a compressional wave in a homogeneous rock layer with a density of 2.75 g/cm3, a Young's modulus of 0.39 x 1011 N/m2, and a Poisson's ratio of 0.10.
A train has a rest length of 100 m. Traveling at a very high velocity, it goes through a tunnel of length 60 m. What is the velocity of the train expressed in units of c
questiona convex lens is a transparent device that uses refraction to twist and focus light from an object forming a
About 50000 years ago, a meteor crashed into the earth near present-day Flagstaff, Arizona. How does this energy compare to the energy produced in one day by a standard coal-fired power plant
To demonstrate the tremendous acceleration of a top fuel drag racer, you attempt to run your car into the back of a dragster that is "burning out" at red light before the start of a race. (Burning out means spinning the tires at high speed to heat..
A speed skater goes around a turn that has a radius of 27 m. The skater has a speed of 15 m/s, What is the mass of the skater
Oil is being loaded into a barge through a 150 mm diameter pipe whose exit is at an angle ? (alpha)= 60 degrees to the horizontal. Determine the force exerted by the barge on the rope
A block whose mass m is 680 kg is fastened to a spring whosespring constant k is 65 N/m. What is the maximum speed of the oscillating block
An automobile and a truck start from rest at the same instant, with the automobile initially at some distance behind the truck. What is the speed of the truck when they are abreast
A metal sphere of radius R = 30 cm carries a total charge Q = 2.0 µC. What is the magnitude of the electric field at a point 5 m away? The point is located on the positive x-axis, where the center of the sphere is located at the origin.
A glass flask whose volume is 1000.33 at 0 is completely filled with mercury at this temperature. Compute the coefficient of volume expansion of the glass
Given the mass of the rubber in the balloon is 1.70 g, what is the net vertical force on the balloon if it is let go? You can neglect the volume of the rubber
Two identical point charges are fixed to diagonally opposite corners of a square that is 0.420 m on a side. How much work is done by the electric force
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