Find the required angular speed of an ultracentrifuge
Find the required angular speed of an ultracentrifuge for the radial acceleration of a point 2.40 from the axis to equal 5.00×105 g (where g is the acceleration due to gravity).
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The electrons enter through a small hole in the negative plate, accelerate, then exit through a small hole in the positive plate. Assume that the holes are small enough not to affect the electric field or potential. What is the electric field stre
A steel ball of mass 0.50 Kg is fastened to a cord 70 cm long and is released when the cord is horizontal. At the bottom of its path the ball strikes a 2.5 Kg steel block initially at rest on a frictionless surface. The collision is elastic. Find
A 24.0 L cylinder containing helium gas at a pressure of 46.5 atm is used to fill a weather balloon in order to lift equipment into the stratosphere. What is the final pressure (in atm) in the cylinder after a 396 L balloon is filled to a pressure
Finally sphere W is touched to sphere C (with an initial charge of +60e), and then they are separated. The final charge on sphere W is +23e. If the initial charge on sphere A was ce, what is the value of c?
In a period of 6.00 s, 6.00 × 1023 oxygen molecules strike a wall with an area of 2.00 cm2. If the molecules move with a speed of 400.0 m/s and strike the wall head-on in elastic collisions, what is the pressure exerted on the wall?
• Review the job listings at a multinational organization. You may choose from the organizations from Week Two. Outline the recruitment strategies the organization uses. Explain how the organization classifies their job opportunities an
A playground merry go round of a diameter 6.00 m and mass 240 kg is rotating at 12.0 rev/min about a frctionless vertical axle. Facing the axle, a 30.0 kg child hops on to the merry go round and manages to sit down on its ledge. What is the new a
What will the attractive force be if the vacuum is replaced with water at 20o C? The permittivity of water at this temperature is 7.07x10-10 C2/N-m2.
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Identify and discuss three ethical guidelines that are important to consider when designing an 8-week group for adolescents who are referred
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Suppose that a group of researchers would like to explore how we perceive objects in the real world, rather than just in a laboratory
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