A0.20 kg particle moves along the x axis under the influence of a stationary object. the potential energy is given by u(x) = 8x2 + 2x4, where u is in joules and x is in meters. if the particle has a speed of 5.0 m/s when it is at x = 1.0 m, its speed when it is at the origin is:

Protons and neutrons are found within the nucleus of an atom

Assume this car is driven off a cliff . how many arrows of force need to be drawn in the free body diagram? assume no air resistance -five -one -three -four

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.