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A person 1.8 m tall stands 0.74 m from a reflecting globe in a garden.
A). If the diameter of the globe is 18 cm, where is the image of the person, relative to the surface of the globe?
B). How large is the person's image?
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
You have been hired as a manufacturing engineer, What is the minimum coefficient of friction between the parts and the belt to ensure none of the parts slip when they are sped up by the belt
A stationary charged particle at the origin creates an electric flux of 487 N ? m2/C through any closed surface surrounding the charge. Find the electric field it creates in the empty space around it as a function of radial distance r away from the ..
A small particle has charge -2.30\mu C and mass 3.00×10^-4kg . It moves from point A, where the electric potential is V_A = 120V , to point B, What is its speed at point B
You pull a 12 kg sled across the floor with a strap that is at an angle of 31° above the horizontal with a force 76 N. Determine the magnitude of the acceleration of the sled, given that the coefficient of kinetic friction between the suitcase an..
approximately what is the mass of an object whose weight equals the force from part "b"? can you lift such a mass.
A 29? and a 41? resistor are in series, Find the current when this series combination is connected across a 12V battery
A moon orbits a planet of unknown mass with a period of 1.8 days. If the radius of the moon's orbit is 420,000,000 meters, find the mass of the planet
You are spin coating a thin layer of polymer onto a reflective silicon wafer to create an organic solar cell device. What thickness would you determine the film to be
A typical red blood cell subtends an angle of only 1.8×10^-5 rad when viewed at a person's near-point distance of 25 cm. find the magnitude of the angle subtended by the red blood cell
rotates to provide an "artificial gravity" of 3.10 m/s2 for persons who walk around on the inner wall of the outer rim. Find out the rate of the wheel's rotation in revolutions per minute that will produce this effect.
questionrefrigerant is flowing while a frac34 inch o.d. copper tube under conditions such that its mixed temperature is
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