Consider three poles with circular cross sections. Their cross sectional radii (r) and masses (m) described below. Which one exerts largest pressure on the ground if poles stand on their circular edges. Which one exerts the least pressure? Pole 1: r=1 cm, m=100 kg Pole 2: r=1.5 cm, m=150 kg Pole 3: r=2 cm, m=250 kg.

A container filled with water and there are two holes, as shown in figure below. What is the ratio of x1 to x2? 20 cm 100 am 50 cmB X1 X2 13. Given frictionless flow of water at 125.6 ft'/s in a long, horizontal, conical pipe of diameter 2ft at one end and 6ft at the other. The pressure head at the smaller end is 18ft of water. Find the velocities at two ends and the pressure head at the larger end.

The plug has a diameter of 30 mm and fits within a rigid sleeve having an inner diameter of 32 mm. Both the plug and the sleeve are 50 mm long. The plug is made from a material for which E= 1 MPa, v=0.7. (Figure 1) Figure Part A Determine the axial pressure p that must be applied to the top of the plug to cause it to contact the sides of the sleeve. Express your answer to three significant figures and include appropriate units. HA P= Submit Part B Value 8 = Request Answer Also, how far must the plug be compressed downward in order to do this? Express your answer to three significant figures and include appropriate units. μÅ 3 Value Submit Provide Feedback Units Request Answer IWIC ? Units www. ?

لابد B A These four containers are filled with the same volume of water. Which has the highest pressure at the bottom? A B C