In a displacement versus time graph, what does the slope of a line at any point indicate?
O acceleration
O
maximum displacement
minimum displacement
O velocity
The answer is velocity b/c the slope Indicates a velocity because it represents the change in position with respect to time

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.

it is reliable if two scientists recorded it