Aperson coughs when a foreign object is in the windpipe. the velocity of the cough depends on the size of the object. supppose a person has a windpipe with a 20-mm radius. if a foreign object has a radius r, in millimeters, then the velocity v, in millimeters/second, needed to remove the object by a cough is given by:

Sariah enters a room with several chirping crickets in it. upon first entering the room, sariah can hear the chirping; however, as she begins to talk to her friends, she is no longer aware of the chirping even though it is still there. the fact that sariah no longer perceives the chirping sound demonstrates sensory

What would you call a political system that is only meant to last for a short time

“obamacare”: included a provision for government-run health insurance called “the public option.” was bitterly opposed by congressional republicans because most favored a “single-payer” plan. survived two challenges to its constitutionality. was partially repealed in 2013 in order to avert a government shutdown. led to the expansion of medicaid in republican controlled states.