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A ball rolls down a 100 meter the hill is inclined at 60o. If the ball has a rotational inertia of 10kg-m2 and starts from rest, obtain what is the final rotational speed of the ball? (you must use the conservation of energy)
an elevator is moving upward at a constant speed of 2.50 ms. a bolt in the elevator ceiling 3.00 m above the elevator
A small object of radius r and mass m is released at the edge of a round bowl with radius R>>r and rolls toward the bottom. What fraction of the kinetic energy is rotational if the object is (1) a marble, (2) a coin, and (3) a point particle (i.e r=..
a certain car is capable of accelerating at a rate of 0.59 ms2. how long does it take for this car to go from a speed
A force of 83 Newtons is applied to a wire with a diameter of 0.5 mm. What is the tensile stress (in N/m2) in the wire
The owner of a van installs a rear-window lens that has a focal length of -0.340 m. When the owner looks out through the lens at an object located directly behind the van, How far from the van is the object actually located
A wave on a string has a speed of 397 m/s. If the tension in the string is 128 N and its length is 1.9 m, what is the mass of the string
A hunter is standing on flat ground between two vertical cliffs that are directly opposite one another. find the distance between the cliffs
You can hear beats when two tuning forks are sounded together. The tuning forks have labels showing them to be 242 Hz and 248 Hz frequencies
Consider the (infinite) midplane between two charges of equal magnitudes and oppoisite signs. If the charges are + and - q, what is the electric flux through the midplane
During the launch from a board, a diver's angular speed about her center of mass changes from zero to 4.50 rad/s in 220 ms. FIND the magnitudes of her average angular acceleration
When a high-power laser is used in the Earth's atmosphere, the electric field associated with the laser beam can ionize the air, What laser beam intensity will produce such a field
The overall length of a piccolo is 32.0 cm. The resonating air column vibrates as in a pipe that is open at both ends. (a) Find the frequency of the lowest note a piccolo can play. Hz (b) Opening holes in the side effectively shortens the length of t..
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