A2-kg collar is released from rest at a and slides down the inclined fixed rod in the vertical plane. the coefficient of kinetic friction is 0.40. calculate (a) the velocity v of the collar as it strikes the spring and (b) the maximum deflection x of the spring.

Porque crees que el agua no podia subir mas de 10 m de altura con ese tipo de bomba

Three different objects, all with different masses, are initially at rest at the bottom of a set of steps. each step is of uniform height . the mass of each object is a multiple of the base mass : object 1 has mass 4..00m , object 2 has mass 1..96m , and object 3 has mass . when the objects are at the bottom of the steps, define the total gravitational potential energy of the three-object system to be zero. if the objects are then relocated as shown, what is the new total potential energy of the system? each answer requires the numerical coefficient to an algebraic expression. each algebraic expression is given using some combination of the variables , , and , where is the acceleration due to gravity. enter only the numerical coefficient. (example: if the answer is 1..23mgd , just enter 1.23)

If you place a magnet under a clear dish, and sprinkle iron fillings over it, above what part of the magnet will most of the fillings gather