A tree loses water to the air by the process of transpiration at the rate of 110 g/h. This water is replaced by the upward flow of sap through vessels in the trunk. If the trunk contains 2000 vessels, each 100 mm in diameter, what is the upward speed of the sap in each vessel? The density of tree sap is 1040 kg/m3.
Answers: 1
water loss must be replaced by 
is 
,
is the cross sectional area of the vessel.
is the velocity 
of the sap, and on right-hand-side 
; therefore,
; 
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A tree loses water to the air by the process of transpiration at the rate of 110 g/h. This water is...
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