Sketch a graph of velocity versus time corresponding to the graph of position versus time given in Figure 2.67. (b) Identify the time or times (ta, tb, tc, etc.) at which the instantaneous velocity is greatest. (c) At which times is it zero? (d) At which times is it negative?

the arctic is a region of the planet, north of the arctic circle, and includes the arctic ocean, greenland, baffin island, other smaller northern islands, and the far northern parts of europe, russia (siberia), alaska and canada.

b.

hope this : )

current flows in a wire

i think its c if i'm wrong