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A 500kg pig is standing at the top of a muddy hill on a rainy day. The hill is 100.0m long with a vertical drop of 30.0 m. The pigslips and begins to slide down the hill. What is the pig's speed at the bttom of the hill? Use the law of conservation enrgy.
A duck is swimming down a river and passes a slow moving log. If the log had a mass of 35.2 kg, and the duck was swimming at 3.00 m/s, what is the log\'s kinetic energy
A scuba diver releases a 3.50 cmdiameter (spherical) bubble of air from a depth of 10.0 m in alake. How large is the bubble when it reachesthe surface
A uniform 2.95- kg spinning disk with a radius of 0.263 m is brought to rest by a brake-pad pressed against the side 0.205 m from the rotation axis. What frictional force was applied by the brake pad
An infinite line of charge has linear charge density 5.50x 10-12 C/m. A proton (mass 1.67x 10-27 kg, charge +1.60 10-19 C) is 18.0 cm from line and moving directly toward the line at 1.20 x10^3 m/s. How close does the proton get to the line of char..
A car travels at 90.0km/h for a distance of 500m. find the tangential speed of the perimeter of each tire
A 6.00?kg ball is dropped from a height of 13.0m above one end of a uniform bar that pivots at its center. The bar has mass 7.50kg and is 6.80m in length. How high will the other ball go after the collision
A 36.4 kg child starting from rest slides down a water slide with the vertical height of 20.7 m. (Neglect friction.) What is the child's speed three-quarters of the way down.
The position of an object connected to a spring varies with time according to the expression x = (5.7 cm) sin(6.8?t). Find the period of this motion
An unstable particle at rest breaks up into two fragments of unequal mass. what is the speed of the heavier fragment
A mass of 9.30 kg is suspended from a 1.45 m long string. It revolves in a horizontal circle, Calculate the angle between the string and the vertical
An 18-year-old runner can complete a 10.0-km course with an average speed of 4.80 m/s. How much later (in seconds) should the younger runner start in order to finish the course at the same time as the older runner
A 54 kg woman is prepared to do a push-up. Her center of gravity lies directly above a point on the floor which is 0.9 m from her feet, Find the force exerted by the floor on her hands
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