Water flows at a constant speed of 16 m/s through a narrow section of a pipe. What is the speed of water in the section of the pipe where its radius is twice the initial radius

Arod of some material 0.20 m long elongates 0.20 mm on heating from 21 to 120°c. determine the value of the linear coefficient of thermal expansion [in (degrees c)^-1] for this material.

The slope of a velocity time graph over any interval of time gives the during that interval

This is the substance(s) formed in a chemical reaction.