The sap in trees , which consists mainly of water in summer , rises in a system of capillaries of radius r=2.5xx10^(-5)m .The surface tension ofsap is T=7.28xx10^(-2)Nm^(-1)and the angle of contact is 0^(@) .Does surface tension alone account for the supply of water to the top of all trees ?

The sap in trees , which consists mainly of water in summer , rises in

1.	The sap in trees , which consists mainly of water in summer , rises in a system of capillaries of radius r=2.5xx10^(-5)m .The surface tension ofsap is T=7.28xx10^(-2)Nm^(-1)and the angle of contact is 0^(@) .Does surface tension alone account for the supply of water to the top of all trees ?
Answer» SOLUTION :Radius `(R )=2.5xx10^(-5)m` Surface TENSION `(S)=7.28xx10^(-2)N//m` Angle of contact `theta=0^(@)` Height h `=(2Scostheta)/(rrhog)` `=(2xx7.28xx10^(-2)xxcos0^(@))/((2.5xx10^(-5))(10^(-3))(9.8))` `=0.6`m