The forces on the runner and on the road are equal. Why does the runner move forward, yet the ground apparently does not move backwards?

The intensity, or loudness, of a sound can be measured in decibels (db), according to the equation , where i is the intensity of a given sound and is the threshold of hearing intensity. what is the intensity, in decibels, [i(db)], when ? use a calculator. round to the nearest whole number. 8 9 19 80

Which type of microscope would allow the viewer to see ribosomes inside a cell?

Which articulations allow for greatest range of motion?