A 1 kg. mass is suspended from a vertical spring. Before coming to rest, the spring is stretched 1.6333... m. The system has a resistive force which is measured at 5 N. when the velocity is 1 m/sec. In addition, there is an external force which given by 13 sin 2t N. If the mass is released from equilibrium with a downward velocity of 2 m/sec., find the position at any time t. (Use g

Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.