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Q. A sonar generator on a submarine produces periodic ultrasonic waves at a frequency of 2 MHz. The wavelength of the waves in seawater is 4.80 x10-4 m. While the generator is directed downward, an echo reflected from the ocean floor is received 10s later. How deep is the ocean at that point? (Assume that wavelength is constant at all depths.)
Phonology: All the data for this problem come from a conservative dialect of Vèneto, a Romance language spoken in northern Italy near the city of Padua.
What is the highest possible induced emf in the antenna as it moves through the Earth's magnetic field.
A hotel elevator ascends 140 {rm m} with a maximum speed of 4.59 {rm m/s}. Its acceleration and deceleration both have the magnitude of 1.93 {rm m/s^2}. How long does it take to make complete trip from bottom to top.
A skier with a mass of 66kg starts from rest and skis down an icy (frictionless) slope that has th elength of 57 m at an angle of 32° with respect to the horizontal. At the bottom of the slope, path levels out and becomes horizontal, the snow beco..
A loudspeaker of mass 18.00 {rm kg} is suspended a distance of h = 1.20 {rm m} below the ceiling by two cables that make equal angles with the ceiling.
What is this value? In this state, the interference pattern still appears showing that each individual electron can interfere with itself.
At what speed do a bicycle and its rider, with a combined mass of 100-kg, have the equal momentum as a 1500 kg car travelling at 5 ;{ rm m}/ {rm s}.
Four particles with masses 4 kg, 2 kg, 4 kg, and 2 kg are associated by rigid rods of negligible mass. The origin is centered on the mass in the lower left corner, and all the particles are located in Quadrant 1. The rectangle is 5 m wide and 4 m ..
A cylindrical container 1.60 {rm m} tall contains mercury to a certain depth, d. The rest of the cylinder is filled with water.
The link between portfolio level objectives with portfolio success factors that are achieved through individual projects and points out how contributes to strategic fit, use of synergies, etc.
An emf is induced in a conducting loop of wire 1.11m long as its shape is changed from square to circular.Find the average magnitude of induced emf if the change in shape occurs in 4.03s and the local 0.135-T magnetic field is perpendicular to the ..
A golfer takes two putts to get his ball into the hole once he is on green. The first putt displaces the ball into the ball 6.7 m east, and the second 2.16 m south. What displacement would have been needed to get the ball into the hole on first putt.
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