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A liquid (? = 1.65 g/cm3) flows through a horizontal pipe of varying cross section as in the figure below. In the first section, the cross-sectional area is 10.0 cm2, the flow speed is 262 cm/s, and the pressure is 1.20 105 Pa. In the second section, the cross-sectional area is 3.50 cm2.
Calculate the smaller section's pressure.
A ballplayer standing at homeplate hits a baseball that is caught by another player at the same height above the ground from which it was hit. How high will the ball rise
q1. two 53 rm g blocks are held 30 rm cm above a table. one of them is just touching a 50-long spring. the blocks are
Two teams of nine members each engage in a tug of war. The first team's members have average masses of 65 kg and exert average forces of 1350 N horizontally. What is the acceleration of the two teams
A small hole of a 2.6 cm diameter has developed in the hull of a ship 4.0 m below the waterline. At what rate is water flowing into the ship
The minute hand of the Official Quiz Clock points to the 12 and is functioning normally until the quiz begins, How much quiz time do the students lose
Suggest a proper answer with proof for if frequency of incident radiation is doubled, what will be the effect on maximum kinetic energy of photo electrons
A wheel is rotating freely with an angular speed of 20 rad/s on a shaft whose moment of inertia is negligible. Calculate the angular speed of the coupled wheels
A 22-turn circular coil of radius 4.20 cm and resistance 1.00 O is placed in a magnetic field directed perpendicular to the plane of the coil. Calculate the induced emf in the coil at t = 5.20 s
A proton is located at x=1.0nm, y=0.0nm and electron is located at x=0.0nm, y=4.0nm. Find the attractive Coulomb force between them
A 3.5-kg block of iron (c=0.11 kcal/kgoC) that has been brought to a temperature of 1,063oC is placed on top of a 2.5-kg block of ice (c=0.5 kcal/kgoC) that has been cooled to -50oC
After having collected samples along the shore all day long, a marine biologist walks back to her campsite, 1.69 km away. What distance did the dog run
A 3.10-m-long, 340kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction
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