4 Use the following diagram to answer the next questions Three objects are arranged in a line as shown, Object B has a mass of 23 vg and charges and
C; and object C has a mass or 8 kg and here 18 as the distance between obyease and
C is 1.5 meters,
Ос
If the gravitational force from object A on object B is 1.2x10° N, in which direction is the net
gravitational force on object B?
A to the right
B the net gravitational force on object B is zero
с to the left
in mill not induce a potential difference in a coil of 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.)