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An 82.0 kg-diver stands at the edge of a light 5.00-m diving board, which is supported by two pillars 1.60 m apart, as shown in the figure above. Find the force exerted by pillar B on the board. (take g = 9.80 m/s2)
A disk with the radius 0.60 m begins at rest and is then spun up to a high speed by applying an angular acceleration of 0.25 rad/s^2 for 20 seconds. What is the final angular velocity of the disk
why is it advisable to make use of a proper restraining seat rather than hold a child on your lap.
Two particles of mass m1 = 1.1 kg and m2 = 2.8 kg are traveling with velocities v1 = 4.5 m/s, and v2 = 2.5 m/s, What is the total momentum of this system
A 554-kg satellite is in a circular orbit about Earth at a height above Earth equal to Earth's mean radius. Find the satellite's orbital speed
The work performed as a function of time for a process is given by W = at3 , where a = 2.4 J/s3. What is the instantaneous power output at t = 2.6 s
Compute the rms speed of a nitrogen molecule at 36.0°C. At what temperature will the rms speed be half that value
A Carnot engine uses a steam boiler at 100°C as the high-temperature reservoir. Determine the useful power output of the heat engine
A 150g steel ball and a 300g steel ball each hang from 1.0-m-long strings. At rest, the balls hang side by side, barely touching. To what angle does each ball rebound
Giancoli, page 30 --when they say that x-xo increases with the square of the initial speed. Why do they say square of initial speed only, what about square of final speed? And why do they ignore that the distance also decreases by a factor of 2.
A 210g , 30.0-cm-diameter turntable rotates on frictionless bearings at 61.0rpm. What is the turntable's rotation angular velocity when the block reaches the outer edge
A 0.240 kg block on a vertical spring with spring constant of 4.20 103 N/m is pushed downward, compressing the spring 0.045 m. How high does it rise above the point of release
Two masses, m1 = 2.10 kg and m2 = 9.51 kg are on a horizontal frictionless surface and they are connected together with a rope. What is the acceleration of the whole system
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