A una distancia de 12.0 m dsde una fuente puntual, el nivel de intensidad es de 70dB. A que distancia desde la fuente el nivel de intensidad sera de 40dB.

An artificial satellite circles the earth in a circular orbit at a location where the acceleration due to gravity is 6.03 m/s^2. determine the orbital period of the satellite.

Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.

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