7. Un cordón se enreda alrededor de una polea de 20 cm de diámetro, si se cuelga del cordón un objeto con 3.1 kg de masa. ¿Cuál es el momento de torsión en el centro de la polea? (M = -6 N. m)

Ten students stand in a circle and are told to make a transverse wave. what best describes the motion of the students? each student bumps the shoulder of his or her neighbor. at the exact time, all students take a step to the right. the students skip clockwise, going in a circular motion. one at a time, each student lifts his or her hands up and then down.

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If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?