A car starts at rest and accelerates at a rate of 4 m/s^2. How far does the car travel in 5 seconds? Why?

A) 10 m
B) 20 m
C) 50 m
D) 100m

What are similarities and differences of reflection, refraction, diffraction and absorption?

Which system of units is used by only a small number of countries in the world, including the u. s.

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.)