A1200 kg car moving at 5.8 m/s is initially traveling north in the positive y direction. after completing a 90° right-hand turn to the positive x direction in 3.3 s, the inattentive operator drives into a tree, which stops the car in 270 ms. what is the magnitude of the impulse on the car; (a) due to the turn (b) due to the collision? what is the magnitude of the average force that acts on the car (c) during the turn and (d) during the collision? (e) what is the angle between the average force in (c) and the positive x direction?

Certain bacteria (such as aquaspirillum magnetotacticum) tend to swim toward the earth’s geographic north pole because they contain tiny particles, called magnetosomes, that are sensitive to a magnetic field. if a transmission line carrying 100 a is laid underwater, at what range of distances would the magnetic field from this line be great enough to interfere with the migration of these bacteria? (assume that a field less than 5% of the earth’s field would have little effect on the bacteria. take the earth’s field to be 5.0 * 10-5 t, and ignore the effects of the seawater.)