Atoy consists of two equal masses (m) which hang from straight massless arms (length l) from an essentially massless pin. the pin (length l) and the arms are in plane. consider only motion in this plane. 1. find the potential and kinetic energies of the masses as a function of θ, the angle between the vertical and the pin, and the time derivatives of θ. (assume the toy is rocking back and forth about the pivot point.) 2. find the condition in terms of l, l, and α such that this device is stable. 3. find the period of oscillation if θ is restricted to very small values

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?

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx hurrim timed

Which lists the organs in the correct order as food passes from the mouth to anus?