How far away is the reflecting object
A sound wave traveling at 341 m/s is emitted by the foghorn of a tugboat. An echo is heard 3.20 s later.
How far away is the reflecting object?
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Two 2.0 kg plastic garbage cans are sitting 2.6 meters apart on a sticky classroom floor (coefficient of static friction μs = 0.40). They are not moving. If the first one has a charge of 10 μC, find (a) the most negative possible charge and
A piece of wood is 6.00m long, 0.250m wide and 0.080m thick. Its density is 600kg/m cubed. what volume of iron ( P iron = 7.8 x 10 cubed kg/m cubed) must be fastened underneath the wood to sink it so that the top surface of the wood is just even w
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A sound wave traveling at 341 m/s is emitted by the foghorn of a tugboat. An echo is heard 3.20 s later. How far away is the reflecting object?
A spring cannon is located at the edge of a table that is 2 m above the floor. A steel ball is launched from the cannon with speed vi at 40.0° above the horizontal. Find the horizontal position of the ball as a function of Vi at the instant it
A copper block rests 30.0 cm from the center of a steel turntable. The coefficient of static friction between the block and the surface is 0.53.The turntable starts from rest and rotates with a constant angular acceleration 0.50 radians/second sq
A 3.10 box that is several hundred meters above the surface of the earth is suspended from the end of a short vertical rope of negligible mass. A time-dependent upward force is applied to the upper end of the rope, and this results in a tension in
A boy is attempting to swim directly across a river; he is able to swim at a speed of 0.421 m/s relative to the water. The river is 2.48 m wide and the boy ends up at 4.77 m downstream from his starting point. (a) How fast is the current flowing i
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