Awheeled cart is free to move along the x-axis. the cart has a mass of 4.00 kg and an initial velocity of 4.00 m/s in the +xdirection when it is at x = 0 m. if the cart is between x = –1 m and x = +2 m, the net force is 1.00 n in the positive xdirection. if the cart is between x = +2 m and x = +7 m, the net force is 4.00 n in the negative x-direction. if the cart is between x = +7 m and x = +8 m, the net force is 2.00 n in the positive x-direction. the net force is zero at all other locations.

Patricia is trying to compare the average rainfall of new york to that of arizona. a comparison between these two states for the months of july through september would best be measured in

A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?

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.)