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A 7.0-kg block slides down a frictionless incline making an angle of 60.0° withthe horizontal.
a) What is the total work done on the blockwhen the block slides 1.1 m (measuredalong the incline)?b) What is the speed of the block after it has slid 1.2 m if it starts from rest?c) What is its speed after 1.2 m if itstarts with an initial speed of 1.9m/s?
In 1916 Milikan used measurements of the kinetic energy of photoelectrons to detemine plancks constant
In fact, the increased normal force at these large angles makes force of friction too large to move the lawnmower at all.
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