Explain why fluids travel faster near the center of pipes and tubes than at the edges

What is generally true of the lower house in a state legislative branch ?

According to ohrp, a problem is an “unanticipated problem” when it meets which of the following criteria: unexpected, related or possibly related to the research, suggests that the research does not put the subjects or others at greater riskunexpected, related or possible related to the research, suggests the research puts subjects or others at greater riskunexpected, unrelated to the research but still occurring with a subject, suggests the research puts others at greater riskexpected, related or possible related to the research, suggests the research puts others at greater risk

Why do all market economies have taxes to support armed forces police forces public schools and at least some form of public transportation?