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Three identical point charges each of chargeq are located at the vertices of an equilateral triangle as in the figure shown below. The distance from the center of the triangle to each vertex isa.
(a) Show that the electric field at the center of the triangle is zero. (Submit a file with a maximum size of 1 MB.)
A child with a mass of 48 kg is riding on a merry-go-round. If the child has a speed of 3 m/s and is located 2.5 m from the center of the merry-go-round, What is the child's angular momentum
A 75-m long train begins unknown uniform acceleration from rest.The front of the train has a speed of 23 m/s when it passes arailway worker who is standing 180m from where the front of the train started. What will the speed of the last car be as i..
X-ray pulses from Cygnus X-1,a celestial x- ray source, have been recorded during high- altituderocket flights. The signals can be interpreted as originating whena blob of ion- ized matter orbits a black hole with a period of5.25 ms. I
What voltage is required to store 6.8 x 10-5C of charge on the plates of a 6.0 µF capacitor
A transparent oil with index of refraction 1.20 spills on the surface of water (index of refraction 1.33), determine the thickness of the oil slick
A dentist's drill starts from rest. After2.80s of constant angular acceleration, it turns at a rate of2.46104rev/min. Find the drill's angular acceleration
The microwave radiation left over from the Big Bang explosion of the universe has an average energy density of 3.89 × 10-14 J/m3
A solid sphere of radius R carries a volume charge density ?=?0e^r/R, Find an expression for the electric field strength at the sphere's surface
The density of aluminium is 2700 kg/m3. What is the velocity of a wave that propagates along a cylindrical aluminium wire that has a radius of 2.30 mm and is under a tension of 58.0 N?
A ball is thrown downward from building 122 m tall with initial speed 38.0 m/s What will velocity of this ball be as it reaches the ground
A spring with an unstrained length of 0.071 m and a spring constant of 2.3 N/m hangs vertically downward from the ceiling. What is the magnitude of the external electric field
In the figure below, projectile particle 1 is an alpha particle and target particle 2 is an oxygen nucleus. Find the initial speed of the alpha particle
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