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Please show work so I can see all the steps. A metallic sphere initially has a net charge of +4.0 nC. A negatively-charged rod initially has a net charge of -6.0 nC. When the rod touches the sphere 8.2 x10^9 electrons are transferred to the sphere. What is the new net charge on the sphere?
Two identical masses are connected to vertical springs each with a force constant k the coordinates x1 and x2 measure the distance of each mass from its equilibrium position write newton's 2nd law for each mass.
A solenoid is wound with a single layer of copper wire of radius 0.480 cm. What is the inductance of the solenoid per unit length
What is the speed and total energy of an electron whose kinetic energy is 3 times its rest energy
The masses of the earth and moon are 5.98 × 1024 and 7.35 × 1022 kg, respectively. find the magnitude of the charge placed on each body
The fundamental frequency of an open organ pipe corresponds to the middle C (261.6 Hz on the chromatic musical scale). The third resonance of a closed organ pipe has the same frequency. (Assume that the speed of sound in air is 343 m/s.) What is the ..
You find a used battery and discover that it is no longer strong enough to power your CD player. What is the potential difference
A 66 cm long, 0.8 mm diameter steel guitar string must be tightened to a tension of 2100 N by turning the tuning screws. By how much is the string stretched
Two small objects, A and B, are fixed in place and separated by 2.97 cm in a vacuum. Object A has a charge of +2.16 microC, How many electrons must be removed from object A
A venturi is constructed of a 9.0 cm diameter pipe with a 2.0 cm diameter throat. What is the pressure in the throat
Three light bulbs each with a resistance of 50W, are connected in series to a 100 V power supply. What is the current flowing through the third light bulb.
The cylindrical space station, 200 m in diameter rotates in order to give artificial gravity of 3.0 g for the occupants. How much time does it take, in seconds, to complete one revolution.
A woman stands on a bathroom scale in a motionless elevator. When the elevator begins to move, Find the direction of the acceleration
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