(1 point) A conical tank has height 3 m and radius 2 m at the top. Water flows in at a rate of 0.9m/min. How fast is the water level (h) rising when h = 2.7 m? The speed of the water level rising is = 0.09 m/min (1 point) A hot air balloon rising vertically is tracked by an observer located 5 km from the lift-off point. At a certain moment, the angle between the observer’s line-of-sight and the horizontal is to , and it is changing at a rate of 0.1 rad/min. How fast is the balloon rising at this moment? km/min 5 km
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