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Two point charges are distance d = 43.5 cm apart, They have equal and opposite charge, each with magnitude Q = 8.94 oC. The negative charge is on the left, and the positive charge is on the right. An electron (mass 9.11 x 10-31 kg, charge 1.6x10-19 C) is placed half-way between the charges. What is the electrical field at this point? What is the force on this electron?
An electron moves with speed 700 m/s. Entered uniform E and B field on straight path. E points down and into page. E B and v are perpendicular
Assume this is the innermost line of interference (m = 0) and that speed of sound in air is 331 m/s, find the (linear) frequency of the sound in Hz.
Two cars drive on a straight highway. At time , car 1 passes mile marker 0 traveling due east with a speed of 17.0 . At the same time, At what time do the cars pass next to one another
The upper end of a 3.20m--long steel wire is fastened to the ceiling, and a 58.0kg- object is suspended from the lower end of the wire, What is the mass of the wire
One resistor dissipates 12 W of power when connected across a battery. how much total power will they dissipate
A student could either pull or push, at an angle of 30? from the horizontal, a 55kg crate on a horizontal surface, Calculate the minimum work required for both pulling and pushing
A candle of height 2.0 cm is placed 10.0 cm in front of a diverging (concave) lens of focal length -6.0 cm. Where is the image of the candle
The three capacitors C= 2.0E-6F in series are connected across a 30V battery. Find the potential difference across each
A satellite with a mass of 310 kg moves in a circular orbit 7.00 107 m above the Earth's surface. What is the gravitational force on the satellite
Cars have shock absorbers to damp the oscillations that would otherwise occur when the springs that attach the wheels to the car's frame are compressed or stretched. What will the period of the underdamped oscillation of this car be if the pushing-..
A concave mirror has a focal length of 33.8 cm. The distance between an object and its image is 49.7 cm. Find (a) the object and (b) the image distance assuming that the object lies beyond the center of curvature.
A cylinder of gas is at room temperature (20°C). What is the new pressure of the gas relative to its initial pressure
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