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Ocean waves pass through two small openings, 21 m apart, in a breakwater. You're in a boat 76 m from the breakwater and initially midway between the openings, but the water is pretty rough. You row 40 m parallel to the breakwater and, for the second time, find yourself in relatively calm water.
What is the wavelength of the ocean waves?
The deepest point in the ocean is in the Mariana Trench, about 11 km deep, in the Pacific. The density of seawater at the surface is 1.03 X 10^3 kg/m^3. Find its density at the bottom
An indestructible bullet 1.85 cm long is fired straight through a board that is 11.10 cm thick. The bullet strikes board with a speed of 455m/s and emerges with a speed of 279m/s. (To simplify, suppose that the bullet accelerates only while the fr..
A particle rotates in a circle with a centripetal acceleration of 9.81 meters per second squared. what is the new centripetal acceleration in terms of the original value
A 16 kg steel ball is launched from a cannon at an angle of 20 degrees above the horizontal. The cannon exerted an average force of 1200 Newtons on the ball during launch. Now that ball is in the air and has almost reached its target, what is the ..
With an average mass of only 30.0 g, the ouse lemur of Madagascar is the smallest primate on the earth. What is the lemur's tangential speed at that point
at a concert you sit 12 m directly in front of one of the two speakers on the front of the stage. the other speaker is
A dedicated sports car enthusiast polishes the inside and outside surfaces of a hubcap that is a thin section of a sphere. How far is her face from the hubcap
questiona cockroach of mass m lies on the rim of a uniform disk of mass 5 m that can rotate freely about its center
The resistance of a bagel toaster is 14 ?. To prepare a bagel, the toaster is operated for one minute from a 120-V outlet. How much energy is delivered to the toaster
How much heat must you add to a 10 kg bar of steel to increase its temperature 600 degrees Celsius
A step down transformer produces a voltage of 5.3 V across the secondary coil when the voltage across the primary coil is 100V. What voltage appears across the primary coil
A gas mixture contains 2.50 mol of O2 and 3.00 mol of Ar. What is the molar specific heat at constant pressure for this mixture
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