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Assume you could mount a sphere (I = (2/5)MR^2) on top of the horizontal disk. Determine the moment of inertia of the disk and sphere together. Assume they have the same mass and the same radius.
A power station uses 100 kV to deliver power to a building. The building has a total resistance of 12.5kV. How much power is delivered to the building
An antiaircraft shell is fired vertically upward with an initial velocity of 200m/s. compute the maximum height of the shell
A shell is shot with an initial velocity of 29 m/s, at an angle of ?0 = 62° with the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass (see the figure). One fragment, whose speed immediately after the explo..
A 4.5 kg mass is fastened to a light spring, with the intervening cord passing over a pulley, find the change in gravitational potential energy of the of the mass
The edge of a cube consist of equal resistors of resistance R, that are joined at the orners, let a battery be connected to two opposite corners of a face of cube. what is the efective resistance.
A small steel ball bearing with a mass of 17g is on a short compressed spring. When aimed vertically and suddenly free, spring sends the bearing to a height of 1.33 m. compute the horizontal distance ball would travel if the same spring were aimed..
An engine has a maximum theoretical efficiency of 45%. If the temperature difference between the input, what is the exhaust temperature
A glass windowpane in a home is 0.62cm thick and has dimensions of 0.9m multiplied by 1.6 m. On a certain day, the indoor temperature is 20 °C and the outdoor temperature is 0 °C.
A ball of mass 0.60 kg is fired with velocity 200 m/s into the barrel of a spring gun of mass 2.0 kg initially at rest on a frictionless surface. What fraction of the ball's initial kinetic energy is stored in the spring
An electron is 2cm away from a line whose charge density is 3pC/cm. It is moving away perpendicularly at 1000 km/s. How far will it travel before reversing direction
A rock is thrown vertically upward with a speed of 15.0m/s from the roof of a building that is 40.0m above the ground, What is the speed of the rock just before it strikes the ground
A solution has a hydronium-ion concentration of 1.0 x 10^-3 mol per liter. What is the hydroxide-ion concentration of this solution
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