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A child places a picnic basket on the outer rim of a merry-go-round that has a radius of 4.2 m and revolves once every 33 s.
(a) What is the speed of a point on that rim?
(b) What is the lowest value of the coefficient of static friction between basket and merry-go-round that allows the basket to stay on the ride (?s)?
q. a hot wheels track has a spring loaded launcher. a 100g car is pushed into the launcher which compresses the spring
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The pressure in a traveling sound wave is given by the equation %u0394p=(1.50 Pa)sin((%u03C0/2.)*(0.90 m-1x -297.0 s-1 * t)). Find the pressure amplitude
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