A 16-pound weight is attached to a spring stretching it 1.28 feet. Assuming that a damping force equal to 5 times the instantaneous velocity acts on the system. 1. State the differential equation describing the motion of this spring/mass system.
2. Find the real-valued general solution of this DE of motion for this spring/mass system (with arbitrary constants).
3. If the weight is released 5 feet below the equilibrium position with an initial downward velocity of 2 ftsec, clearly write the initial conditions (including units).
4. Solve for the solution of the IVP, showing all work.

Three archers each fire four arrows at a target. joe’s four arrows hit at points 10 cm above, 10 cm below, 10 cm to the left, and 10 cm to the right of the center of the target. all four of moe’s arrows hit within 1 cm of a point 20 cm from the center, and flo’s four arrows hit within 1 cm of the center. the contest judge says that one of the archers is precise but not accurate, another archer is accurate but not precise, and the third archer is both accurate and precise. which description applies to which archer? explain

According to social exchange theory, altruistic behaviors benefit the individual who performs them. t/f

This problem has been solved! see the answera non-uniform fire escape ladder is 6.0m long whenextended to the icy alley below. it is held at the top by africtionless pivot, and there is neglibible frictional force fromthe icy surface at the bottom. the ladder weighs 250n, and it'scenter of gravity is 2.0m along the ladder from the bottom. amother and child of total weight 750n are on the ladder 1.5m fromthe pivot. the ladder makes an angle θ with the horizontal.find the magnitude and direction ofa) the force exerted by the icy alley on the ladderb) the force exerted by the ladder on the pivotc) do your answers in part a and b depend on the angle?