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A solid non-conducting sphere has a uniform volume charge density and a radius of 6 cm. The total charge on the sphere is 2nC.
Find the potential difference between points inside the sphere at a radius of 3 cm and points outside the sphere at a radius of 12cm (measured from the center of the sphere).
A student drops two metallic objects into a 120-g steel container holding 150 g of water at 25°C. One object is a 230-g cube of copper that is initially at 85°C, What is the mass of the aluminum chunk
A wire with mass 38.0g is stretched so that its ends are tied down at points a distance 78.0cmapart. What is the speed of propagation of transverse waves in the wire
Find the magnetic flux through a circular loop 4.6 cm in diameter oriented with the loop normal at 58 degrees to a uniform 80 mT magnetic field
During the same interval, a 34 kg greyhound can accelerate from rest to 23 m/s. Calculate (a) the change in kinetic energy and (b) the average power output for each.
a proton has a speed 4.5*10^5 m/s at a point where electrical potential is 900V. it moves through a point where the electric potential is 500V. find the kenetic energy of proton at first point
Firemen are shooting a stream of water at a burning building. A high-pressure hose shoots out the water with a speed of 23.0m/s as it leaves the hose nozzle. How high above the ground does the water strike the building
A certain thin, uniform rod has a mass of 2 kg and length 3 m. To what shorter length must you trim it (discarding the smaller part) so that the remaining length has half the original moment of inertia about its end.
A guitar string with a mass of 12 g is 80 cm long and attached to the guitar at two points separated by 65 cm. What is the frequency of its fundamental note when it is placed under a tension of 170 N? Answer A) 74 Hz B) 82 Hz C) 93 Hz D) 150 Hz E)..
An automobile and a truck start from rest at the same instant, with the automobile at first at some distance behind the truck. The truck has a constant acceleration of 2.01.
A specimen of oil having an initial volume of 600cm3 is subjected to a pressure increase of3.6×106Pa, What is the bulk modulus (in Pa) of the material
At an outdoor market, a bunch of bananas attached to the bottom of a vertical spring of force constant 16.0 N/m is set into oscillatory motion with an amplitude of 20.0 cm. What is the weight of the bananas in newtons
A circus clown weighs 900 N. The coefficient of static friction between the clown's feet and the ground is 0.4. What is the minimum pulling force that the clown must exert to yank his feet out from under himself
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