Calculate the maximum force in newtons exerted by the blood on an aneurysm, or ballooning, in a major artery, given the maximum blood pressure for this person is 150 mm Hg and the effective area of the aneurysm is 20.0 cm2 . Note that this force is great enough to cause further enlargement and subsequently greater force on the ever-thinner vessel wall.
Notes from Unit 1: Night Sky: Constellations – combinations of stars Originally used by Mesopotamians, adopted and renamed by Greeks 88 catalogued constellations Where they are in the sky changes based on the rotation and orbit of the earth, different constellations are visible at different times of year Circumpolar- stars that are always on the visible horizon (from one of the poles at least) Polaris- star at the north celestial pole Celestial sphere- imaginary sphere around the earth Meridian- circle that passes through the celestial poles Celestial equator- perpendicular the meridian, same as earth’s equator but in the celestial sphere Altitude- how high up something appears in the sky Azimuth- which compass direction something appears in the sky RA (right ascension)- east-west coordinates on the celestial sphere (like longitude) Dec (declamation)- north-south coordinates on the celestial sphere (like latitude) Ecliptic- the path of the sun (through the zodiac equations) Zodiac- 12 constellations in the part of the sky where the sun and planets can be seen, different ones are visible at different times of the year Summer solstice- June 21 , sun is in the highest point of the celestial sphere in the northern hemisphere, longest day here st Winter solstice- December 21 , sun is in the highest point in the southern hemisphere, shortest day in the northern hemisphere Seasons- caused by the earth’s tilt Autumnal Equinox- day and night are of about equal length, days moving from longer to shorter,
