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Liquid Sodium leaves a nuclear reactor at 800°C and is used as the energy source in a steam power plant. The condenser cooling water comes from a cooling tower at 15°C. Determine the maximum thermal efficiency of the power plant?
Two objects with masses of 3.90 kg and 6.40 kg are connected by a light string that passes over a frictionless pulley, Determine the acceleration of each object
Radium is a radioactive element whose nucleus emits an alphaparticle (a helium nucleus) that has a kinetic energy of about 6.5x 10-13 J (4.1 MeV). To what amount of mass is this energy equivalent?
a pot of hot water is boiling on your stove. the pot is in the shape of a round cylinder made of aluminum which is 10
Unpolarized light with an intensity of585W / m2 is incident on a polarizer with an unknown axis. The light then passes through a second polarizer with has an axis which makes an angle of67.0° with the vertical.
a woman at an airport is towing her 20.0-kg suitcase at constant speed by pulling on a strap at an angle icirccedil
What is the final velocity of a hoop that rolls without slipping down a 7.50 m high hill, starting from rest
question a plane is headed eastward at a speed of 156 ms. a 20.0 ms wind is blowing southward at the same time as the
A proton is confined within an atomic nucleus of diameter 4.0m. Use a one dimensional model to estimate the smallest range of speeds
a glass rod is rubbed with silk and acquires a charge of magnitude 7.50 nc. what is the change in mass of rod?also if
A block oscillating on a spring has period T = 2.0s What is the period if the block's mass is doubled? Explain. What is the period if the value of the spring constant isquadrupled?
briefly discuss the advantages and disadvantages of pushing or pulling a vacuum cleaner or lawn mower or assisting
a block of wood has specific gravity 0.79. When placed in water, what percent of the volume of the wood is under the surface. And what volume of the wood is above the surface
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