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To test the quality of a tennis ball, you drop it onto the floor from a height of 4.00 m. It rebounds to a height of 2.00 m. Suppose the ball is in contact with the floor for 12.5 ms.
What is the magnitude of its average acceleration during the contact with the floor?
An intense light source radiates uniformly in all directions. What is the total average power output of the source
A spherical mass on a rod of length L rotates rigidly about a fixed axis at the opposite end of the rod. What is the sphere's linear displacement
A steel ball is dropped onto a concrete floor. Over and over again, it rebounds to its original height. Is the motion simple harmonic motion
A flying wedge spaceship is a right triangle in side view. At rest, the base and height (which form the 90° angle) measure 8.9 m, calculate the angle of the triangular nose to be
A hollow sphere of inner radius 7.4 cm and outer radius 8.4 cm floats half-submerged in a liquid of density 800 kg/m3. Calculate the density of the material of which the sphere is made
A piece of unpainted wood barely floats in a container partly filled with water. If container is sealed and then pressurized above atmospheric pressure, does the wood rise, sink, or remain at the similar level.
If the proton is fired at a speed of 3.0×107m/s , what is its closest approach to the surface of the nucleus? Assume the nucleus remains at rest
A uniform rod of mass 3.05×10^-2?2kg and length 0.370m rotates in a horizontal plane about a fixed axis through its center, compute the angular speed of the rod after the rings leave it
A major motor company displays a die-cast model of its first automobile, made from 5.60 kg of iron. To celebrate its hundredth year in business.
A certain automobile engine is performing work at the rate of 28300 W (38 hp) with an efficiency of 23%. At what rate is heat being expelled by the engine
A bucket of mass 1.50 is whirled in a vertical circle of radius 1.20. At the lowest point of its motion the tension in the rope supporting the bucket is 25.00 N. Find out the speed of the bucket. How fast must the bucket move at the top of the circle..
An athlete starts at point and runs at a constant speed of 6.20 around a round track 250 in diameter, Find the component of this runner's average acceleration between points
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