The ima of a lever can be increased by decreasing the length between the applied effort and the pivot.

Discuss how the hardness or softness of the landing surface is related to the time required to stop the egg

Area around a charged object where the objects can exert a force on another charged objects is an electric

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.)