What is the frequency of a wave traveling with a wave speed of 140 m/s and a wavelength of 6 m? (Round to the nearest tenth and remember your
units!) *
HELPP PLS

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m

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.)

If you held a stone over the mouth of a well and then let it go , what would happen to the stone? explain your answer.