A rod of length D sits at rest on a frictionless table. A ball of mass A strikes the end of the rod with a U speed v and rebounds with a speed v/2 causing the rod to rotate counterclockwise around a fixed axis at the middle. The rotational inertia of the rod is I. What angular velocity w of the rod after the conclusion?
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Trumpeter a holds a b-flat note on the trumpet for a long time. person c is running towards the trumpeter at a constant velocity. person b is running away from the trumpeter at the same rate. person d is standing still the whole time. which person hears a frequency that is lower than the b-flat?

Asample of a gaseous substance changes into a liquid

Bob camina 200 m sur, luego trota 400 m suroeste, luego camina 200 m en una dirección 30? norte del este. a. dibuje una gráfica de los movimientos de bob. use una regla y transportador. b. use método gráfico y analíitico para hallar el desplazamiento total que bob recorrió. (magnitud y dirección) c. compare los resultados obtenidos por el método gráfico y analítico. (por ciento de diferencia).