How to find the volumetric flow rate?

Connor Anderson
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With a given 2kW pump
That pumps a liquid with a density of 820kg/m³ from one tank to another that's 30m higher.
With a calculated change in pressure to be 241.3kpa.
Find the volumetric flow rate.
I feel like there are not enough given variables for this problem. What do you think?
 
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What additional information do you think you need? What formula would try to use?
 
Welcome to PF:
Just thinking about the height for now...
How much work to lift a mass m of water up a height h?
 

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