For a population with u=80 and σ=20, the distribution of sample means based on n=16 will have an expected value of and a standard error of .

At time t=0, a particle is located at the point (3,6,9). it travels in a straight line to the point (5,2,7), has speed 8 at (3,6,9) and constant acceleration 2i−4j−2k. find an equation for the position vector of the particle.

This is the number of complete movements of a wave per second.

The radius of an atom is closest in size to a