Assuming all objects are moving with the same velocity, which statement describes the object with the largest inertia?

a driver continues forward after his car takes a sharp turn.
a ball rolls across a street and into a large soccer field.
a rock is thrown in space and continues in a straight line.
an avalanche of snow falls down a mountainside.

Current from a charged capacitor lights a bulb. as time goes on the brightness of the

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.)

When a metal and an bond they do not share electrons