Mechanical Prop...

For a fluid which is flowing steadily in a horizontal tube as shown in the figures, the level in the vertical tubes is best represented by.

In a hydraulic lift, the small piston has an area of $$2 cm^2$$ and the large piston has an area of $$80 cm^2$$. What is the mechanical advantage of the hydraulic lift?

A capillary tube is attached horizontally to a constant pressure head arrangement. If the radius of the capillary tube is increased by $$10$$%, then the rate of flow of the liquid shall change nearly by

A perpendicular force is applied to a certain area and produces a pressure $$P$$. If the same force is applied to a twice bigger area, the new pressure on the surface is:

A horizontally oriented tube AB of length $$l$$ rotates with a constant angular velocity $$\omega$$ about a stationary vertical axis OO' passing through the end A (fig). The tube is filled with an ideal fluid. The end A of the tube is open, the closed end B has a very small orifice. Find the velocity of the fluid relative to the tube as a function of the column 'height' $$h$$.  

The area of cross-section of the pump plunger and the press plunger of hydraulic press are $$0.03{m}^{2}$$ and $$9{m}^{2}$$ respectively. How much is the force acting on the pump plunger of the hydraulic press overcomes a load of $$900kgf$$?

The flow of blood in a large artery of an anesthetised dog is diverted through a venturi meter. The wider part of the meter has a cross-sectional area equal to that of the artery $$A=8 \ mm^2$$ .The narrower part has an area $$a=4 \ mm^2$$.The pressure drop in the artery is 24 Pa. What is the speed of blood in the artery?Density of blood is $$ 1.06\times 10^3 kg/m^3$$.

A liquid flows through two capillary tubes connected in series. Their lengths are $$L$$ and $$2L$$ and radii $$r$$ and $$2r$$ respectively. Then the pressure differences across the first and the second tube are in the ratio

What is a pressure on the smaller piston if both the pistons are at same horizontal level? (Take $$g=10m$$ $${s}^{-2}$$)

There are two round tables in the physics classroom: one with the radius of $$50\ cm$$, the other with a radius of $$150\ cm$$. What is the relationship between the two forces applied on the tabletops by the atmospheric pressure? then value of $$\dfrac{F_1 }{F_2} $$ is: