1)A horizontal pipe of diameter 7.8 cm has water flowing in it at a speed 3.8 m/s at a pressure 4.7 x 105 N/m2. At some

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1)A horizontal pipe of diameter 7.8 cm has water flowing in it
at a speed 3.8 m/s at a pressure 4.7 x
105 N/m2. At some location, the
pipe diameter reduces to 3 cm. Calculate the speed of water in the
smaller diameter section. Write your answer in terms of m/s.
2)
A horizontal pipe of diameter 6.2 cm has water flowing in it at
a speed 2.4 m/s at a pressure 7.9 x
105 N/m2. At some location, the
pipe diameter reduces to 5.3 cm. Calculate the pressure of water in
the smaller diameter section. Density of water = 1000
kg/m3. Write your answer in terms of
x105 N/m2 (i.e. if your answer is
2.34 x 105 N/m2, write only 2.34)