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You have two disks, both with a radius of 25mm, and both made of the same non-conducting material. Both disks are uniformly charged. Disk 1 has a charge of 1.5 μC and the total charge of disk 2 is unknown. You place disk 1 at Z1 = 0mm and disk 2 at Z2= 32mm. The symmetry axis of each disk coincides with the z-axis. Using a small charged ball you discover that the electric force is equal to zero at Z=88mm. What is the charge on disk 2?
nature of humans from an evolutionary perspective and provides a means of observing and understanding ourselves and our history as a species.
A 1.80 m length of wire is held in an east-west direction and moves horizontally to the north with a speed of 15.3 m/s. The vertical component of Earth's magnetic field in this region is 40.0 µT directed downward. Calculate the induced emf between th..
Water flows over a section of Niagara Falls at the rate of 1.1 x10^6 kg/s and falls 55 m. How much power is generated by the falling water.
a microscope has an objective lens with an aperture diameter of .60 cm. a monochromatic light source of wavelength 580
Two diffraction patterns are formed on the screen. What is the distance between the common center of the diffraction patterns and the first occurrence of the spot where the dark fringe from one pattern falls on top of a dark fringe from the other p..
A proton with a velocity in the positive x-direction enters a region where there is a uniform magnetic field B in the positive y-direction, The electric field should be in the...which direction
Two square, oppositely charged conducting plates measure 33 cm on each side. They are placed close together and parallel to each other. They have charges of +5.4 nC and -5.4 nC, respectively.
a square is 1.0 m on a side. charges of 4.0 uc are placed in twodiagonally opposite corners.in the other two corners
How fast in kilometres per hour, should a sound source be moving toward you to make the observed frequency 5.0% greater than the true frequency? (Suppose that the speed of sound is 340 m/s.)
An athlete training for an event does 6.53 104 J of work during a workout and gives off 6.17 105 J of heat, Determine the magnitude of the change in internal energy of the athlete
A 450 kg dragster accelerates from rest to a final speed of 120 m/s in 400 m, What is its average power output in watts and horsepower if this takes 7.30 s
The outer edge of a rotating Frisbee with a diameter of 29 centimeter has a linear speed of 3.7 m/s. Determine the angular speed of the Frisbee
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