A group of highway engineers has designed a curved section of a road. The speed limit on this road is 30.0 m/s (roughly 60 mph). The radius of the curve is designed so that the road is barely safe to drive on if µ = 1.00. If it rains or freezes and µ drops to 0.500, then what would be the maximum safe speed in those conditions?

This problem has been solved! see the answera non-uniform fire escape ladder is 6.0m long whenextended to the icy alley below. it is held at the top by africtionless pivot, and there is neglibible frictional force fromthe icy surface at the bottom. the ladder weighs 250n, and it'scenter of gravity is 2.0m along the ladder from the bottom. amother and child of total weight 750n are on the ladder 1.5m fromthe pivot. the ladder makes an angle θ with the horizontal.find the magnitude and direction ofa) the force exerted by the icy alley on the ladderb) the force exerted by the ladder on the pivotc) do your answers in part a and b depend on the angle?

(**i would really appreciate if this was answered soon** ) which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

This is the number of complete movements of a wave per second.