Aperson walks in the following pattern: 3.1 km north, then 2.4 km west, and finally 5.2 km south. a) sketch the vector diagram that represents this motion. b) how far and in what direction would a bird fly in a straight line from the same starting point to the same final point?

Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?

The energy released by a nuclear fusion reaction is produced when

How is the acceleration of an object in uniform circular motion constant? a - in magnitude only b - in direction only c - in both magnitude and direction d - in magnitude, direction & orientation