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Two electrodes are placed in a calcium chloride solution and a potential dissimilarity is maintained between them. If 6.2*1016 Ca2+ ions and 8.5*1016 Cl ions per second move in opposite directions during an imaginary area between the electrodes, what is the current in the solution?
A daredevil on a motorcycle leaves the end of a ramp with a speed of 33.0 m/s, what is the maximum height that he reaches
Suppose an object is placed at the edge of a recordplayer. The record player has a diameter 30.0cm and rotatesat 33.3 RPM (revolutions per minute). How fast is the outside edge of the record moving
Consider a mass spectrometer used to separate the two isotopes of uranium, 238U3+ and 235U3+. Assume the ions enter the magneticfield region with a speed of 7.10*105 m/s. What value of B isrequired to give a separation of 1.2mm when the ions leave th..
A 0.420 kg ice puck, moving east with a speed of 3.12 m/s, has a head-on collision with a 0.890 kg puck initially at rest. Assuming a perfectly elastic collision, What is the speed of the heavier puck
using a simple pulleyrope system a crewman on an arctic expedition is trying to lower a 5.91kg crate to the bottom of a
A copper wire has a resistance of 0.500 ? at 20.0ºC , and an iron wire has a resistance of 0.525 ? at the same temperature
Two long, straight, parallel wires of length 4.5 m carry parallel currents of 3.1 A and 1.1A. If the wires are separated by a distance of3.4 cm, what is the magnitude of the force between the two wires?
An electric field of 300 V/m is confined to a circular area d = 11.1 cm in diameter and directed outward perpendicular to the plane of the figure. If the field is increasing at the rate of 22.0 V/m·s, what are direction and magnitude of the magnet..
A baseball is thrown from the roof of 23.5 m-tall building with an initial velocity of magnitude 10.6 m/s and directed at an angle of 52.5 degrees above the horizontal. What is the speed of the ball just before it strikes the ground
The two masses in the Atwood's machine shown in the figure have an initial speed of = 0.25 , and is moving upward. How high does rise above its initial position
Light with an initial intensity of S0 passes through a vertical-oriented polarizer, and then passes through a second polarizer oriented 12.2° from vertical. find the direction (or possible directions) of the initial polarization
Two earthquake waves of the same frequency travel through the same portion of the Earth, What is the ratio of the amplitudes of the two waves
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