Combustion air in a manufacturing facility is to be preheated before entering a furnace by hot water at 90 C flowing through the tubes of a tube bank located in a duct. Air enters the duct at 15 C and 1 atm with a mean velocity of 4 m/s, and flows over the tubes in normal direction. The outer diameter of the tubes is 2 cm, and the tubes are arranged staggered with longitudinal and transverse pitches of SL=ST = 6 cm. There are eight rows in the flow direction with eight tubes in each row.

“a monarchy is indeed the most powerful of any… but then there is imminent danger of his employing that strength to improvident or oppressive purposes.”—william blackstone, commentaries on the laws of england which of the following documents addressed blackstone’s concern in this quote? the magna carta, because it limited the power of the king. common sense, because it encouraged american colonists to declare independence. the mayflower compact, because it created a government and the first written laws for plymouth settlers. the english bill of rights, because it later influenced the u. s. bill of rights.

Middle schoolhistory 5+3 pts 1. the pacific islands formed by coral reefs are called (1 point) a. volcanic. b. reefs. c. atolls. d. plates. 2. what is a reason few people have settled in the interior of australia? (1 point) a. no mineral wealth is in the area. b. land is too expensive. c. the area is too dangerous. d. the area has little water and arable land. 3. what was one effect of plate movement on the pacific region? (1 point) a. australia and new zealand became b. connected to north america. c. plate movement isolated many species. few volcanoes formed. d. the regional climate grew much colder. 4. you live on a small island in the pacific ocean. though beautiful, your island has poor soil for farming and few natural resources. you most likely live (1 point) a. on a densely populated island. b. on the south island of new zealand. c. in new guinea on a volcanic island off the coast of australia. d. on a low island. 5. which change would most likely have to take place first to encourage more human settlement in the outback? (1 point) a. the climate would need to get warmer. b. the winters would need to be milder. c. the region would need more fertile land and water d. people would need to build more cities there. 6. what would be an example of how the maori are reclaiming their culture? (1 point) a. learning english b. playing rugby and other sports c. studying maori culture in schools d. learning how to cook asian cuisine 7. what conclusion can correctly be made about british colonization of this area? (1 point) a. the british policies embraced the cultures of the original inhabitants. b. the british disregarded the cultures of the original inhabitants. c. the british had a neutral policy toward native cultures. d. none of the above plz answer these

Why would it be hard to live in a city state