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A round pipe of varying diameter carries petroleum from a wellhead to a refinery. At the wellhead the pipe\'s diameter is 58.3 cm and the flow speed of the petroleum is 11.1 m/s. At the refinery the petroleum flows at 5.35 m/s. What is the volume flow rate of the petroleum along the pipe and what is the pipe\'s diameter at the refinery?
Determine the location of the center of mass of the molecule as measured from the hydrogen atom (Chlorine is 35 times more massive than hydrogen.).
The expanding gases that leave the muzzle of a rifle also contribute to the recoil. A .30 caliber bullet has mass 7.20×10?3kg, Find the momentum of the propellant gases in a coordinate system attached to the earth as they leave the muzzle of the rifl..
Two identical, small insulating balls are suspended by separate 0.31-m threads that are attached to a common point on the ceiling. determine the tension in the threads
A rectangular container measuring 32 cm 39 cm 62 cm is filled with water. What is the mass of this volume of water in kilograms and grams
A 9.0-g piece of Styrofoam carries a net charge of -.65, What is the charge per unit area on the plastic sheet
A 20-kg uniform disk is at rest on a horizontal surface when a horizontal force of F=400N is applied at the center of the disk to the right. Determine the acceleration of the mass center
A 60 kg skier skis a distance of d=200 m down a q=15o incline starting from rest. His speed at the bottom of the hill is 5 m/s. What was the NET work done on the skier
A small ball rolls horizontally off the edge of a tabletop that is 1.24 m high. What is its speed at the instant it leaves the table
Two 1.90-cm-diameter disks spaced 2.10mmapart form a parallel-plate capacitor. The electric field between the disks is 5.10×105V/m, What was the electron's speed as it left the negative plate
The average density of the planet uranus is 1.27 x 10^3 kg/m^3. The ratio of the mass of neptune to that of Uranus is 1.19. The ratio of the radius of Neptune to that of Uranus is 0.969. Find the average density of Neptune.
A lawn mower has a flat, rod-shaped steel blade that rotates about its center. What is the rotational energy of the blade at its operating angular speed of 3480 rpm
A walkway suspended across a hotel lobby is supported at numerous points along its edges by a vertical cable above each point and a vertical column underneath. how much does the point move down
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