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Heat energy required to change the temperature is given by

here we know that




now from above formula we will have


So it will remove 28255.5 J heat from the water
Answer:
The average speed of the oil is 1 m/s.
Explanation:
Given that,
Viscosity 
Radius r = 3.0 mm
Length = 1.0 m
Pressure = 200 kPa
We need to calculate the average speed of the oil
Using formula of pressure


Where, A = area
= density of oil
= viscosity
Put the value into the formula


Hence, The average speed of the oil is 1 m/s.
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