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A pipeline of 0.2m in diameter is flowing with water and ends in a constricted pipe of 0.1m diameter. If the velocity in the 0.2m section is 2m/sec., find the velocity and the flow rate in the constricted section.
What is decrease in kinetic energy throughout the collision.
A potter's wheel having a radius 0.450m and a moment of inertia 15 kg•m2 is rotating freely at 45 rev/min. The potter can stop the wheel in 7.50 s by pressing a wet rag against the rim and exerting a radically inward force of 68 N.
The space shuttle is in a 300km -high circular orbit. It needs to reach a 610km -high circular orbit to catch the Hubble Space Telescope for repairs, How much energy is required to boost it to the new orbit
A spherical shell of radius R = 8.0 cm has a total charge Q = - 900nC uniformly distributed on its surface, Write the net electric field at the point P in unit vector notation
What will transform in terms of the observable properties of the black hole as this process continues
What was the absorbed dose in the carbon walls? The average mass stopping powers of graphite and CO2 for the photons are, respectively, 1.648 and 1.680 MeV cm^2/g.
An ice skater is gliding horizontally across the ice with an initial velocity of +7.77 m/s. How much time elapses before her velocity is reduced to +3.00 m/s
Calculate the potential energy of a rock with a mass of 55 kg while sitting on a cliff that is 27 m high.
the coefficient of kinetic friction between the table and the block is 0.320. Sand is gradually added to the bucket until the system just begins to move. Compute acceleration of the motion.
Andy, age 16, lacks self-discipline, fails to plan ahead, and is rapidly frustrated by challenging tasks. He is nervous and overly critical of others. Make use of the psychoanalytic, humanistic and social-cognitive perspectives to give three contr..
Ball 1, with a mass of 110g and traveling at 15m/s, collides head on with ball 2, which has a mass of 300g and is initially at rest, What are the final velocities of each ball if the collision is perfectly elastic
Ignoring the heat lost along the length of the poker, find out the amount of heat conducted from one end of the poker to the other in 3.0 s.
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