Felix connects a wire coil to an ammeter and moves a bar magnet around the outside of the coil. He wants to show that a moving magnet can cause an
electric current in a wire. Which change should Felix make so that the
ammeter will detect a current?
A. He must arrange the connecting wire in the correct direction.
B. He must rotate the magnet as it moves around the wire coil.
C. He must move the magnet along the connecting wires.
D. He must move the magnet through the inside of the wire coil.

If the spring constant k of a pogo stick is 3500 n m and the weight of the person on the pogo stick is 700 n, how much is the spring in the botom of the pogo stick compressed?

Panel bc in fig. p2.76 is semi-circular, with the 3 meter radius and horizontal straight edge through point b. compute (a) the hydrostatic force of the water on the panel, (b) its center of pressure, and (c) the moment of this force about point b. assume atmospheric pressure on the dry side of the panel

Choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. a 1.0 kg block is placed on top of a 2.0 kg block. a horizontal rope pulls the 2.0 kg block across a frictionless floor with a force of 21.0 n. the coefficient between the two blocks is 0.75. does the 1.0 kg block on top slide?