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In an inkjet printer, letters are built up by squirting drops of ink at the paper from a rapidly moving nozzle. The pattern on the paper is controlled by an electrostatic valve that determines at each nozzle position whether ink is squirted onto the paper or not. The ink drops have a radius of 19.0 μm and leave the nozzle and travel toward the paper at a velocity of 18.0 m/s . The drops pass through a charging unit that gives each drop a positive charge q by causing it to lose some electrons. The drops then pass between parallel deflecting plates of length 1.75 cm where there is a uniform vertical electric field with a magnitude of 8.10×104N/C If a drop is to be deflected a distance of 0.300 mm by the time it reaches the end of the deflection plate, what magnitude of charge must be given to the drop? (Assume that the density of the ink drop is 1000kg/m3). what is the Q?
a capacitor with a capacitive reactance of is connected in series with a 100 resistor across in ac source of frequency 60.0hz. what is the phase angle
a scientific instrument weighs 85.2 N in the Earth's surface and weighs 32.2 N in the surface of mercury. What is the acceleration of gravity on Mercury
An express train passes through a station. It enters with an initial velocity of 22.0 m/s and decelerates at a rate of 0.150 m/s2 as it goes through. How fast is it going when the nose leaves the station
Some bacteria are propelled by biological motors that spin hair-like flagella. How long does it take the motor to make one revolution
the center of a 1.50 diameter spherical pocket of oil is 1.00 beneath the Earth's surface.Estimate by what percentage directly above the pocket of oil would differ from the expected value of for a uniform Earth?suppose the density of oil is 8.10^2 ..
Write an expression for a R -state lightwave of angular frequency wand amplitude E0 propagating in the positive x-direction such thatat t=0 and x=0 the E-field points in the negative z-direction.
A charge of -250e is uniformly spread through the volume of a sphere of radius 2.00 cm. What is the volume charge density in that sphere
What is the term for the process that returns moisture to the air from the Earth's surface? What is the term for the process that returns water to the surface from the air? What is an aquifer? How common are aquifers in the United States?
An unmarked police car traveling a constant 95km/h is passed by a speeder traveling 145 km/h. exactly 2.5 s after the speeder passes, police officer steps on accelerator; if the police car's acceleration is 2.10m/s^2.
Run the simulation. You will use the data from the "Time" and "Position" measurement tables (red, green, and blue) to help in calculating individual electrostatic (Coulomb) forces and directions.
Water has a mass per mole of 18 g/mol,, and each water molecule has 10 electrons. what is the net charge of all these electrons
A driver in a truck applies the brakes to come to a stop at a red light. Just before braking, the truck's initial speed was 16 m/s, and it was moving in the west direction. What was the truck's average velocity during braking? Assume the accelerat..
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