The water flowing through a 2.1 cm (inside diameter) pipe flows out through three 1.3 cm pipes. (a) if the flow rates in the three smaller pipes are 24, 15, and 11 l/min, what is the flow rate in the 2.1 cm pipe? (b) what is the ratio of the speed of water in the 2.1 cm pipe to that in the pipe carrying 24 l/min?

He viscosities of several liquids are being compared. all the liquids are poured down a slope with equal path lengths. the liquid with the highest viscosity will

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Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?