What is the unit analysis that shows how newtons end up being kg?

The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

Which of the following list the divisions of the geologic time scale in order from longest to shortest