What is the net force acting on the motorcycle
An experiment measures the speed of a 250 kilogram motorcycle every 2 seconds. The motorcycle moves in a straight line. What is the net force acting on the motorcycle?
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.0002 kg spider is suspended from a thin strand of spider web. The greatest tension the strand can withstand without breaking is .002 n. What is the maximum acceleration with which the spider can safely ascent the strand?
A 17.0 kg loudspeaker is suspended 2.40m below the ceiling by two 3.10m long cables that angle outward at equal angles. what is the tension of each of the cables?
Calculate the time integral of activity (t = infinity) for a 50 MBq source of F-18 in an organ for the following biological half times. Express your results in mCi-hr, MBq-s, and number of disintegrations.
A maker of frozen meals claims that the average caloric content of its meals is 800 and the standard deviation is 25. A researcher tested 12 meals and found that the average number of calories was 873 with a variance of 22. Is there enough evide
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Suppose that an ideal frictionless inclined plane has an angel of inclination of 5 degrees with respect to the horizontal. What is the acceleration of an object sliding down that plane? Assume that the acceleration due to gravity is g=9.80 m/s2.
A ball of mass 522g starts at rest and slides down a frictionless track. It leaves the track horizontally, striking the ground. a) At what height above the ground does the ball start to move?
A stone has a mass of 6.0 10-3 kg and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.90.
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