12. A diver takes off with a speed of 8.0m/s from a 3.0 m high diving board at 30^circ above the horizontal. How much later does she strike the water? 13. A pilot cuts loose two fuel tanks in an effort to gain altitude. At the time of release, the plane was 120 m above the ground and traveling upward at 30^circ to the horizontal, with a speed of 84 m/s For how long did the tanks fall and with what speed did they hit the ground?7. A car traveling at 100m/s comes to a stop in 200 m. How long did it take for the car to come to a stop? (2)15. Une caisse ayant une masse de 18 ,Okg repose sur une rampe de 35^circ au-dessus de l'horizon. Le coefficient de friction entre la caisse et le plancher est de 0,41 . a. Trouve la force de frottement b. Trouve l'accélération de la caisse c. Quelle force doit-on appliquer pour donner à la caisse une accélération de 1,2m/s^2 vers le haut de la rampe?7. What is the mathematical equation that was engraved on Boltzmann's gravestone and what does it mean?6. State the Second Law of Thermodynamics and write the simple mathematical equation that represents this law.PREV 495051525354555657 NEXT
