in some states, the highway patrol uses planes carrying radar devices to monitor traffic. As the plane flies over traffic, the r
adar device can tell the officers how fast each car is moving at that moment in time. The radar device determines the car's (2 points) average velocity. instantaneous speed. acceleration. average speed.
In Cox v. Louisiana, 1965, the Supreme Court upheld
limitations on <span>parades near courthouses. Protesters against racial
discrimination gathered outside a Louisiana courthouse building and
were then instructed by the police to move across the street. Some moments
after, they were disbanded by the police with the use of "tear
gas". </span>