Devastating floods carried many structures that ended up sub…
Devastating floods carried many structures that ended up submerged in a lake that is 8 meters deep. One structure that needs to be removed from the bottom of the lake is a rooftop. 1) What is the resultant force acting on top of each wing of the rooftop in kN? 2) How deep is the center of pressure in m? The rooftop dimensions of each wing are: 10 m x 10 m. The angle is 30º.
Read DetailsDuring a spill cleaning operation in a creek near the San An…
During a spill cleaning operation in a creek near the San Antonio River, a vacuum truck from the San Antonio River Authority pumped 30 m3 of a mixture of water and diesel. The mixture was stored in a tank on top of the vacuum truck. The tank is 3 meters high and was filled to capacity. After one hour, water and diesel separated, with one fluid sinking to the bottom and the other floating to the top. Answer the questions: 1) What is the absolute pressure in kPa at the bottom of the tank, knowing that diesel occupies 10% of the total volume of the tank? 2) Which fluid sank to the bottom? Water or Diesel? The specific weight of diesel is 8,440 N/m³.
Read DetailsMarta’s husband died in an accident, leaving her with two ch…
Marta’s husband died in an accident, leaving her with two children. Without his income, she is having a hard time making ends meet. Fortunately, her mother can help watch her children and Marta gets a part time job at the grocery store. She does not make very much, so she is eligible for government assistance for food worth $350 a month. Her boss offered her some extra shifts, which she worked. However, that extra $200 mean that she no longer qualified for the government assistance for food. What is this scenario an example of?
Read DetailsImmigrants who have entered this country without proper pape…
Immigrants who have entered this country without proper paperwork are breaking the law and are therefore criminals. Since they are criminal from the moment that they get here, they will continue to break laws and cause an increase in crime. Therefore, undocumented immigrants are very dangerous. Which concept is illustrated here?
Read Details