A certain atom has eight protons, eight electrons, and eight neutrons. How many nucleons does this atom have? What is the atomic number of this atom? What is the mass number of this atom?

In science and physics what is the standard unit of measure for speed?

At what time will the interfering waves have an amplitudeof zero?

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.)