Pulling a wheel with a string? a bicycle wheel is mounted on a fixed, frictionless axle, with a light string wound around its rim. the wheel has moment of inertia i = k m r^2, where m is its mass, r is its radius, and k is a dimensionless constant between zero and one. the wheel is rotating counterclockwise with angular velocity omega_0, when

Atomic nuclei of almost all elements consist of

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?