Iwant to know which ball will get in more times if i throw it the same way 10 meters from the basketball hoop 10 times using three different balls: basketball, volleyball, or tennis ball. what is the independent variable in this experiment? a. the type of ball b. the brand of the ball or c. the type of thrower

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.)