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Two 0.11 gram pith balls are suspended from the equal point by threads 50 centimeter long. When the balls are given equal charges, they come to rest 22 centimeter apart. Obtain the magnitude of the charge on each ball?
An ideal transformer has 60 turns on its primary coil and 300 turns on its secondary coil. If 120 V at 2.0 A is applied to the primary, what current is present in the secondary?
The punter on a football team tries to kick a football so that it stays in the air for a long "hang time." what is the "hang time"
Determine the magnitude of the force experienced.
A plastic rod has been rubbed with a scratchy brown paper towel. You have cautiously tested the rod and found that it has a negative charge. If you place the rod on your handy dandy spinner, and then bring a magnet near it, the rod will
A disk of radius "r" and uniform surface charge density finalized_jax">\(\sigma\) spins with angular velocity %u03C9 about the y-axis
Assume, they are now crossing a snow covered field (μk = 0.030, width of the field is 75 meter) at a constant speed of 12 m/s. Calculate how much energy will be dissipated by friction
A copper wire of radius0.10mm is carrying a current at the Earth's Equator. Assuming that the magnetic field of the Earth has magnitude 0.5 G at the Equator and is parallel to the surface of the Earth and that the current in the wire flows toward the..
A window washer pulls herself upward using a pulley apparatus. If she increases the force by 15 percent, compute what will her acceleration be
It has been proposed to use the energy stored in amassive rotating flywheel to "power" asmall car. How would you orient the axis of the flywheel in the car and why
An 11 kg monkey climbs up a mass less rope that runs over a frictionless tree limb and back down to a 21 kg package on the ground. What is the magnitude of the least acceleration the monkey must have in order to lift the package off the ground? Assum..
A 0.210–A current is charging a capacitor that has circular plates 15.8 cm in radius. The plate separation is 4.00 mm. What is the time rate of increase of electric field between the plates?
Santa loses his footing and slides down a frictionless, snowy roofthat is tilted at an angle of 27°. If Santa slides8.93 m before reaching the edge, what is his speed as he leaves the roof
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