the effect of pressure on surface tension can be attributed in part to absorption of gas at the surface of the liquid and in part to an intrinsic decrease in density of the liquid in the neighborhood of the surface.
In the case of liquids , Owing to contact forces between the edge of the surface and the vessel, the surface acquires a curvature, and if the liquid rises up at the edges where it meets the vessel, the pressure will be less in the liquid than in the air, for points just below and just above the surface. The vessel exerts an upward force on the liquid. This is simply a matter of looking at the directions of forces acting, knowing that the surface is under tension.
Answer:
a) 
, b) 
Explanation:
a) According the Archimedes' Principle, the buoyancy force is equal to the displaced weight of surrounding liquid. The mass of the coal in the barge is:
b) The submersion height is found by using the equation derived previously:
The final submersion height is:
It should tasks that you must do in order for it to be a good schedule.
Newton's principle
newton's 2nd law of motion where F=ma
Answer:
Explanation:
s = 50 t^2
Differentiate both sides with respect to t
ds/dt = 50 x 2 t
ds/dt = 100 t
Substitute t = 10 second
ds/dt = 100 x 10
ds/dt = 1000 m/s
thus, the rate of change of elevation is 1000 m/s.
