physics
posted by Anonymous .
Four charges are arranged at the corners of a regular tetrahedron (a pyramid with four sides that are identical equilateral triangles). The charges are 1 Coulomb each, and the sides of the tetrahedron are all 1 meter. How much energy in Joules is required to assemble this arrangement of charge?

Energy = PE = PE₁₂+PE₁₃+PE₁₄+PE₂₃+PE₂₄+PE₃₄=
=kq₁q₂/a +kq₁q₃/a+kq₁q₄/a+ kq₂q₃/a+kq₂q₄/a +kq₃q₄/a .
Since q₁=q₂=q₃=q₄=q=1C, and a=1 m
PE=6q²/a=6•1²/1= 6 J
Respond to this Question
Similar Questions

Calculus/Derivitives
A regular tetrahedron is a four sided pyramid with each side being an equilateral triangle. Let x be the length of the triangle's side. a) Prove that the surface area of a tetrahedron is V=x(cubed)(root)2/12 b) Prove that the surface … 
physics
The figure below shows four charges located at the corners of a square with sides of length a = 8.0 cm. If the charges q1, q2, q3, and q4, are all 4.0 Coulomb, then: 
physics
The figure below shows four charges located at the corners of a square with sides of length a = 8.0 cm. If the charges q1, q2, q3, and q4, are all 4.0 Coulomb, then: find the x and y components 
Chemistry
General Chemistry 111 11/28/11 Chapter 9 Extra Credit Quiz Name: _____________________________ Section #______________________ Tetrahedral geometry has a bond angle of about 109.5 °. Given that a tetrahedron is made up of 4 equilateral … 
geometry
A tetrahedron is a triangular pyramid in which each face is an equilateral triangle. Calculate the volume of a tetrahedron that has all its edges 6 cm in length. Hint: You will need to know some geometry and trigonometry. 
Physics pls anyone can help me? its urgent
Four charges are arranged at the corners of a regular tetrahedron (a pyramid with four sides that are identical equilateral triangles). The charges are 1 Coulomb each, and the sides of the tetrahedron are all 1 meter. How much energy … 
Physics Important please
Four charges are arranged at the corners of a regular tetrahedron (a pyramid with four sides that are identical equilateral triangles). The charges are 1 Coulomb each, and the sides of the tetrahedron are all 1 meter. How much energy … 
Consumer Math
A pyramid composed of four equilateral triangles, called a tetrahedron, has a oneside length of 5 meters. What is its surface area? 
maths
The sides of a tetrahedron are 4 equilateral triangles. If the base of each triangle is 8cm and its heights 6.9cm, please help me to calculate the surface are of the tetrahedron. 
Problems in three dimensions
A regular tetrahedron has sides of length s. Show that the surface area, A, of the tetrahedron can be determined using the formula A= square root of 3s^2