On the moon, each kilogram of mass is pulled down with 1.6 newtons of weight. Add a dashed line to your graph showing the results if this activity had been done on the moon. How does the slope of the moon line compare to the slope of the earth line? Is it steeper (more vertical) or shallower (more horizontal)? If the activity has been done on Jupiter, the resulting line would have had a steeper (more vertical) slope. What does this tell you about the strength of Jupiter's gravitational field as compared with Earth's?

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.)