The aorta is approximately 25 mm in diameter. the mean pressure there is about 100 mmhg and the blood flows through the aorta at approximately 60 cm/s. suppose that at a certain point a portion of the aorta is blocked so that the cross-sectional area is reduced to 3/4 of its original area. the density of blood is 1060 kg/m3.

(a) how fast is the blood moving just as it enters the blocked portion of the aorta? (in cm/s)

(b) what is the gauge pressure (in mmhg) of the blood just as it has entered the blocked portion of the aorta? (in mmhg)

Geologists get to play with chemistry, physics, and history! and what a history you will meet as youwork your way through the course. starting at the beginning, the textbook provides the scientifically acceptedstart of the and promises that you'll get to explore some of the evidence for that scientific view, later inthe semester. meanwhile, which is more nearly correct of the scientifically accepted view? a) the earth formed when the big bang caused older materials to fall together, about 14 billion years ago. b) the earth formed from the falling together of older materials, about 4.6 billion years ago. c) the earth formed in the big bang, about 6000 years ago. d) the earth is eternal, having been here forever and promising to be here forever. e) the earth was assembled by gigantic space beavers, which gnawed down the primordial tree of life andpiled its branches together to form the planet.