Students create a pendulum by measuring out a 4.0m length of string and attaching a jeweler's calibration mass of 1.5 kg. The pendulum is then set in motion. At the lowest point of the pendulum's swing, it has a speed of 3.0 m/s. What is the largest angle to the vertical that the mass can reach? Students, in normal times, will sometimes relax by heading to Landis Green, where there's ample space outside to give pets a place to run, or to throw back and forth a frisbee. An 96.51g frisbee is thrown from a height of 1.15 m above the ground at a speed of 10.69 m/s. When the frisbee reaches a height of 1.47m, it has a speed of 8.8 m/s. How much of the frisbee's mechanical energy was dissipated by air resistance (in Joules)