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A sheet of plywood 1.37 cm thick is used to make a cabinet door 50.9 cm wide by 76.9 cm tall, with hinges mounted on the vertical edge. A small 191-g handle is mounted 45 cm from the lower hinge at the same height as that hinge. If the density of the plywood is 550 kg/m^3, what is the moment of inertia of the door about the hinges? Neglect the contribution of hinge components to the moment of inertia.
question an astronaut weighs 275 lbs with equipment here on the surface of the earth. if he goes to a planet where the
A 7.6 µC charge and a -4.7 µC charge are inside an uncharged sphere. What is the electric flux through the sphere
A satellites are placed in a circular orbit that is 3.84 × 108 m above the surface of the earth. What is the magnitude of the acceleration due to gravity
A mass M = 25.0 kg is suspended by a massless string from the ceiling of a van which is moving with constant acceleration a, what is the acceleration a of the van
For a typical rubber-on-concrete friction, what is the shortest time in which a car could accelerate from 0 to 50 mph? Suppose that us=1.00 uk=0.80 and ur=0.002
A particle with a mass of 3.65×10?24 kg and a charge of 6.40×10?19 C starts at rest and is accelerated for a distance of 0.104 m through a uniform electric field having strength E = 7.25×104 N/C
A 120 m long copper wire (resistivity 1.68e-8 Ohm*m) has resistance 6 Ohm. What is the diameter of the wire
On an old-fashioned rotating piano stool, a woman sits holding a pair of dumbbells at a distance of 0.555 m from the axis of rotation of the stool. What is the angular velocity of the system after the dumbbells are pulled in toward the axis
Old TV sets utilized 10 watts of power to provide "instant on" If the set was idle 16 hrs/day compute the ecological cost in kg/year of bituminous coal (30 MJ/kg) burned in a 35% efficient power plant.
Briefly and clearly explain the concept of Inertia held by; Galilio, Kepler, and Descartes. Make sure that your description clarify how these postions differ from one another
during the first stage of its launch a space shuttle goes from rest to 4973kmh while rising a vertical distance of
A soap fil (n=1.33) is 465 nm thick and lies on a glass plate (n=1.52). Sunlight, whose wavelengths (in vacuum) extend from 380 to 750 nm, travels during air and strikes the film perpendicularly.
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