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1.7 kilograms of water are changed from liquid water at 100?C into steam at 100?C. determine the change in mass of the water.
On an old-fashioned rotating piano stool, a woman sits holding a pair of dumbbells at a distance of 0.555m from the axis of rotation of the stool. Compute the kinetic energy of the system before the dumbbells are pulled in
If you double a blackbody's temperature, by what factor does its radiated power increase
A bird stands on an electric transmission line carrying 3100 A. of current. The line has 4.0E-05 ohm resistance per meter, What voltage does the bird feel
Given that the radius of the Moon is roughly one-quarter that of the Earth, find the mass of the Moon in terms of the mass of the Earth
A 65 diver stands at the end of a 27 springboard. What is the magnitude of the vertical force exerted by the hinge on the board
A 50 newton horizontal force pushes a 10kg mass sitting on a horizontal surface. What is the acceleration of the mass
a river with a water temperature T(L)=20 degree C is to be used as the low temperature reservoir of a large power plant, what is the largest electrical output that the plant can deliver to its customers
A brick is thrown upward from the top of a building at an angle of 20° to the horizontal and with an initial speed of 10 m/s. how tall is the building
To help you think about how illuminance varies with distance, suppose a small light source is placed at the center of two transparent spheres. how much of the light passes through the first sphere
A ball is dropped from a boat so that it striks the surface of a lake iwth a speed of 16.5 ft/s. Ball experiences aceeleration a = 10 - .8v, Determin the depth of the lake
Three identical train cars, coupled together, are rolling east at 1.2 m/s. What is the speed of the five-car train
How much energy would be required to break a helium nucleus into its constituents, two protons and two neutrons? The rest masses of a proton
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