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A heat engine operates between two reservoirs at temperatures of 21.2oC and 316oC. What is the maximum efficiency possible for this engine?
A potter's wheel is rotating around a vertical axis during its center at a frequency of 1.7 rev/s. The wheel can be considered a uniform disk of mass 6.0 kg and diameter 0.40 m. The potter then throws a3.1 kg chunk of clay that is shaped like a flat ..
two very long coaxial conducting cylindrical shells have a potential difference 800 v. the inner cylinder has radius
A point charge with charge q1 is held stationary at the origin. A second point charge with charge q2 moves from the point (x1, 0) to the point (x2, y2). How much work W is done by the electrostatic force on the moving point charge.
A disk of radius 2.3 cm has a surface charge density of 6.2 µC/m2 on its upper face. What is the magnitude of the electric field produced by the disk
Two uniform infinite sheets of electric charge densities 41.0 C/m2 and -41.0 C/m2 intersect at a right angle
Estimate the size of the friction force on a baseball player sliding into second base. Assume a mass of 84 and uk = 0.42
Do you think that the commonly held goal of maximizing shareholder wealth forms the basis of identity for our capitalist systems and organizations? Explain why or explain why not?
an athlete in a competition needs to get from point a to another point b directly across from a river. he can swim in
a hospital patient has been given 131i half-life 8.04 days which decays at 4.4 times the acceptable level for exposure
To focus a camera on objects at different distances, the converging lens is moved toward or away from the film, so a sharp image always falls on the film. Obtain over what distance must the lens be movable
A coal-fired power plant, with parameters similar to those used in the text above, is to deliver 1 GW (109 watts) of power. Estimate the amount of steam (in kilograms) that must pass through the turbine(s) each second.
You are driving north on 107th Avenue at a speed of 28.7 mph. At what frequency do you year the siren
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