Introduce a new coordinate defined by q = q sin omega t. find the lagrangian in terms of the new coordinate and the corresponding hamiltonian. is h conserved?

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.

Immediately upon reaching its lowest point, a falling pendulum bob has its greatest amount of energy, which is the initial amount of potential energy. a. heat; less than b. heat; more than c. kinetic; less than d. kinetic; more than