Oto có khối lượng m(kg) đạt tại trọng tâm H. Khoảng cách từ H tới 2 bánh xe hai bên của a (m) và b(m) . Khoảng cách vết bánh xe AB = L(m) . Oto không bị trượt ngang a , bán kính quay vòng r(m) vận tốc v(m/s) . Tính chiều cao trọng tâm lớn nhất để xe không bị lật ngang

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.

10 kg of co2 is initially contained at 400 kpa and 300 k. the gas constant for carbon dioxide is 189 j/lkg k) and has a specific heat ratio, k, of 1.289. isentropic expansion then occurs until the pressure is 200 kpa. a) determine the initial volume of co2 in m. b) determine the final temperature in k. c) determine the work done by the system during the expansion kl.

What is the major difference between thermoplastics and thermosetting plastics from the polymerization structure point of view?