If you were to imagine a simple lump of coal about 6 cm in diameter, what volume of carbon dioxide do you think it would produce when burned? Enough to fill a disposable water bottle? To fill a balloon? To fill a room? Based on your instinct or based on some rough calculations, make an estimate of the volume of gas produced. Include your reasons for your choice

The lift force on the airplane wing is given by the distributed load L(x) = 15(1- 0.04x) KN/m, the engine has a weight of 20 KN, and the weight of the wing is given by w(x) = (5-0.5x) KN. Determine the reaction force and moments at the root of the wing. 3 m We L(x) w(x) 25 m