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A horizontal tube with length L has two positive charges +Q1 and +Q2 on the edges. A small ball can move without friction inside the tube (see figure). This small ball has a charge +Q and the same diameter as the tube. Find the static equilibrium position for the small ball. (sigma F = 0). Hint: Ignore the gravity. Express the result as a function of Q1, Q2 and L.
Charge Causes Flux A point charge causes anelectric flux of -370N·m 2 /C to pass through a spherical Gaussian surface of 15.0 cm radius centered on the charge. If the radius of the Gaussian surface weredoubled, how much flux would pass through the s..
The distance to a star is approximately 4.2e18 m. If this star were to burn out today, How long does it take for sunlight to reach Jupiter
A playground merry-go-round has a disk-shaped platform that rotateswith negligible friction about a vertical axis. The disk has a massof 200 kg and a radius of 1.9 m. A 34- kg child rides at the centerof the merry-go-round while a playmate sets it..
An alternating source drives a series RLC circuit with an emf amplitude of 6.07 V, at a phase angle of +33.3°. When the potential difference across the capacitor reaches its maximum positive value of +5.25 V, what is the potential difference across t..
A rope of mass 0.65 kg is stretched between two supports that are 30 m apart. If the tension in the rope is 120 N, how long will it take a pulse to travel from one support to the other?
a particle of charge 18 microc and mass 5.00 x 10-5 kg is released from rest in a region where there is a constant
it is found experimentally that the electric field in a certain region of earths atmosphere is directed vertically
Evaluate the momentum of an electron moving with each of the subsequent speed 0.014c
find the coefficient of kinetic friction between the slide and the child.
A 7cm pipe gradually narrows to 3cm. When freshwater density 1000kg/m3 flows through the pipe constriction the pressure drops from 32kN/m2 to 20 kN/m2. What is the volumetric flowrate in m3/s?
light traveling in air strikes a transparent material making an angle of 17.000o with respect to the interface. the
a block of mass 0.244 kg is placed on top of a light vertical spring of force constant 4 925 nm and pushed downward so
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