Calculate the net work done by the wings of a 0.300 kg hawk as he flies in a straight line at an angle of 35° above the horizontal from a height of 10.0 m to a height of 50.0 m. his starting speed is 6.00 m/s and his final speed is 10.0 m/s. the drag force is an average of 2.5 n during the flight

Consider a small frictionless puck perched at the top of a fixed sphere of radius r. if the puck is given a tiny nudge so that it begins to slide down, through what vertical height will it descend before it leaves the surface of the sphere? [hint: use conservation of energy to find the puck's speed as a func e conservation of energy to find the puck's speed as a function of its height at what value of this normal force does the puck leave the sphere? ] here on the puck.