1.Consider the lifetime health risk of drinking water containing 0.02mg/L of DDT for a 70-kg adult. The slope factor for DDT asestimated by EPA is 3.4 x 10-1 (kg-day/mg). Estimate the annual number of additional cancers per year one might expect in apopulation of 150,000
2.Estimate the number of persons who would die annually from smokinga pack of cigarettes daily in a city of 200,000 people. Assume therisk of smoking a pack of cigarettes each day is 3.6 x10-3. Calculate the risk of dying per year fromcigarette smoking if a person lives 70 years.
3.If the length of each meridional boundary of a certain township is greater than 6 miles and the length of each latituudinal boundary of the township is less than 6 miles the fractional sections in the township should be located?
4.Why don't we assume that there is an unknown moment about B? It the solution it only shows a horizontal force at B. And is there a reason why the horizontal force at B is labeled By?