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Question: A seamless pipe 600 mm in diameter is to be used to manufacture a pressure vessel designed to carry steam under a pressure of 2 MN. The vessel is made up of a continuous length of pipe with end covers that are butt-welded to the pipe on transverse sections. The pipe material has an ultimate tensile strength of 900 MPa, and a safety factor (based on ultimate) of 5 is specified. The allowable stress for the butt weld is 110 MPa. What should the wall thickness of the pipe be?
a 64.0 kg person standing on a diving board dives straight down into the water. just before striking the water her
A 0.11-kg apple falls off a tree branch that is 2.5m above the grass. The apple sinks 0.063 m into the grass while stopping. Ignore air resistance. Determine the force that the grass exerts on the apple
Metal sphere 1 has a positive charge of 6 nC. Metal sphere 2, which is twice the diameter of sphere 1, is initially uncharged. Determine the final charges on each sphere
A water wave traveling in a straight line on a lake is described by the equation y(x,t)=(3.75cm)cos(0.450cm^-1 x+5.40s^-1t), How fast does a wave crest travel past the fisherman
A 200 kg cart moving 5 m/s to the right collides with a 150 kg cart moving to the left at 4 m/s. After the collision, the carts stick together. find the velocity with which the carts move off after the collision (speed and direction).
Sound enters the ear, travels through the auditory canal, and reaches the eardrum. The auditory canal is approximately a tube open at only one end. The other end is closed by the eardrum. A typical length for the auditory canal in an adult is abou..
two equally charged particles are held 3.0 10-3 m apart and then released from rest. the initial acceleration of the
Dolphins and other sea creatures can leap to great heights by swimming straight up and exiting the water at a high speed. How much time does it take for the dolphin to come to rest
Two runners start simultaneously from the same point on the circular 200 m track and run in opposite directions. One runs at a constant speed of 6.14 m/s and the other runs at a constant speed of 5.43m/s. When they first meet, for how long a time ..
A cylindrical container with a cross-sectional area of 66.2 holds a fluid of density 816 kg/m3, and bottom of the container the pressure is 118 kPa. What is the depth of fluid.
Thunder is heard 4.0 sec after the flash of lightning is observed. If the outside temperature is 15 degrees celsius, how far away was the lightning bolt
A real ammerter has non-zero resistance, and so acts like aresistor in a circuit. One ammerter has resistance 0.5Ω. Whenit is placed across a battery (with emf ε and internalresistance r), the terminal voltage of the battery is 5.0V.
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