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Two identical small spheres of mass 2.0g are fastened to the ends of an insulating thread of length 0.60m. The spheresare suspended by a hook in the ceiling from the centre of the thread. The spheres are given identical electric charges and hang in static equilibrium, with an angle of 30.0 degrees between the string halves. Calculate the magnitude of the charge on each sphere.
Presume electrons move through a copper wire at speed v. Call the linear charge densities in the Earth reference frame Ep for the fixed positive ions in the wire and En for the (negative) electrons.
A significant gust of wind displaces the wrecking ball by a small amount, and then the gust is nearly gone. What is the kinetic energy of the ball at the bottom of the swing if the ball is displaced to a maximum of about 0.5o due to the single gus..
What is the object's displacement at time t = 0 s?
Jack wants to build a radio to tune to a station at 520 MHz. He has available 0.25 micro hertz inductor, What value of capacitance should be used
Suppose unpolarized light of intensity 150 W/m^2 falls on the polarizer and the angle is 30 degrees. What is the light intensity reaching the photocell?
What is the mass of a cube of gold in kg if each edge is 2 feet long and the density of gold is 19300 kg/m3
1. a merry-go-round spins without friction. the merry-go-round is a circular disk of mass m and radius r and that it is
How To Find The Mass Of A Particle In A Spectrometer In Which Two Particles Having The Same Charge And Velocity
A spring with a spring constant of 85 N/m is compressed a distance of 0.35 m from its relaxed position. By how much does the spring\'s potential energy change
Calculate the ground state energy and corresponding speed of a particle of mass 1.0 g in a box of length L=10.0 cm assuming the particle in a box model. Compare these quantities with those of an electron in a box of length 1.0 ..
Two blocks are connected by a rope that stretches over a pulley. While the rope is massless,the pulley is not. The blocks have masses of m1=3 kg, m2=2kg, and the pulley is a solid disk with a mass of mp=1. 5 kg and radius of 10 cm. Block m2 r..
In the circuit shown in the figure, the capacitors are all initially uncharged and the battery has no appreciable internal resistance. find the maximum potential difference across each capacitor
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