Ravi applies the same force to
three different
machines. The
output force of
each of these
machines is
shown here. List
the three machines in order of highest to
lowest mechanical advantage.

99 points which of the following selections is least useful for supporting the claim that states intentionally built unequal school systems to separate the races? question 1 options: a. the supreme court ruling in plessy v. ferguson (1896) declared segregation of schools to be unconstitutional. b. it was very clear by the mid-1900s that southern states had expertly built separate educational systems. these schools, however, were never equal. c. states with laws keeping schools segregated never gave equal amounts of money t o their black and white schools. d. ten years after brown, fewer than 10 percent of southern public schools had integrated. some areas did not comply at all.