. Two protons are released from rest when they are 0.750 nm apart. (a) What is the maximum speed they will reach

What is the magnitude of the gravitational force acting on the earth due to the sun?

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.)

The resistance of 100 w bulb is less than resistance of 40 w bulb. explain the reason.