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A 3-cm-diameter cylinder rotates inside a fixed 4-cm-diameter cylinder with 40-C SAE-30 oil filling the space between the 30-cm-long concentric cylinders. Write the velocity profile and calculate the torque and the power required to rotate the inner cylinder at 2000 rpm assuming a laminar flow.
To simulate the extreme accelerations during launch, astronauts train in a large centrifuge, what should be its rotation period to produce a centripetal acceleration
while walking between gates at an airport you notice a child running along a moving walkway. estimating that the child
A satellite has a mass of 92 kg and is located at 1.99 106 m above the surface of Earth. What is the magnitude of the gravitational force on the satellite
Two lenses have focal lengths of 25.0cm and -50.0cm and are separated by 20.0cm. Where is the final image formed
A 2.0 kg pendulum bob on a string 1.5m long is released with a velocity of 0.0 m/s when the support string makes an angle of 60 degrees with the vertical. What is the tension in the string at the bottom of the swing?
A swimmer is heading straight for the other shore of a river with a velocity of vs=0.6 m/s relative to the water, How far downstream does she end up
A river that is 207 m wide flows due east at a uniform speed of 1.9 m/s. What is the magnitude of the boat's velocity
A heat engine operating between energy reserviors of 119.94 oC and 462.75oC has 35.02% of the maximum possible efficiency. How much energy must this engine extract
A 5.00-g bullet is shot through a1.10-kg wood block suspended on a string2.00 m long. The center of mass of the block rises a distance of0.45 cm. Find the speed of the bullet asit emerges from the block if its initial speed is 398 m/s.
Two pucks, A and B, are on an air hockey table. Puck A is moving with an initial velocity of 5.5m/s Eastward and Puck B is at rest and East of Puck A. Find the final speed of both pucks
consider electrons accelerated to an energy of 20.0 gev in the 3.00 km long standford linear accelerator. a what is the
The coordinate system has its origin at the center of the square. A point mass, m, of 4.21·102 g is placed at one corner of the square object, and the assembly is held in equilibrium by positioning the support at position
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