31. In 1953 she accepted an offer to work for engineer drag forces , in order to improve United States planes. 32. Spin ( rotation ) has little influence on lift and drag forces but impacts a disc's stability during flight. 33. The analysis shows that, other things being equal, the drag force will be proportional to the density of the fluid. 34. Thus the moving conductor will experience a drag force from the magnet that opposes its motion, proportional to its velocity. 35. For instance, in physics of sports, the drag force is necessary to explain the performance of runners, particularly of sprinters. 36. The turbine drag forces are therefore transmitted through a bearing system linking the fixed and rotating parts of the buoy. 37. Eddy current brakes use the drag force created by eddy currents as a brake to slow or stop moving objects. 38. When the front velocity increases, this film thickness " ( d ) " will decrease due to increasing drag forces . 39. Refer to the Airfoil article for more information on how airfoils create lift and drag forces at various angles of attack. 40. The basic principle of separating the cells inside CCE is the balance between centrifugal force and the counter flow drag force .
