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Some positively charged particles passed un-deflected through perpendicular magnetic and electric fields. If the magnetic field strength was 0.650 T and the electric field strength was 2.10x10^5 N/C, what was the speed of the particles?
a child is riding a merry go round, which has an instantaneous angular speed of 1.25 rad/s and an angular acceleration of .745 rad/s^2. what is the magnitude of the acceleration of the child
What is the net force exerted by these two charges on a third charge q3 = 49.5 nC placed between q1 and q2 at x3 = -1.195m
The Earth cools off a night more quickly when the weather is clear than when it is cloudy, why? Describe why the temperature of a gas increase when it is adiabatically compressed.
Six concentric conducting spheres, A, B, C, D, E, and F having radii R, 2R, 3R, 4R, 5R, and 6R, respectively. Spheres B and C are connected by a conducting wire, as are spheres D and E. Determine the equivalent capacitance of this system.
Three charges, each of magnitude 9 nC, are at separate corners of a square of edge length 4 cm. The two charges at opposite corners are positive, and the other charge is negative.
A device has a 100 g wooden shuttle that is pulled horizontally along a square frictionless wooden rail by an elastic band. find the magnitude of the initial acceleration of the shuttle
suppose that two balls of mass 2.5 x 10-4 kg each carry equal charges and are suspended by identical threads of length
An electron is suspended in a vacuum between two oppo- sitely charged horizontal parallel plates. What is the voltage across the plates
A skier starts down a 35? slope. After a vertical drop of 31m , the slope temporarily levels out and then drops at 18? an additional 39m vertically before leveling out again. What is the skier's speed on the lower level stretch
A rifle shoots a 4.50g bullet out of its barrel. The bullet has a muzzle velocity of 965 m/s just as it leaves the barrel. For how long a time is the bullet in the barrel
A television is tuned to a station broadcasting at a frequency of 6.60×10^7 Hz . For best reception, the rabbit-ear antenna used by the TV should be adjusted to have a tip-to-tip length equal to half a wavelength of the broadcast signal
A bowling ball weighing 70.1N is attached to the ceiling by arope of length 3.70m. What is the tension in the rope at this instant
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