Computers regularly use polygon meshes to model three-dimensional objects. most polygon meshes are a
collection of triangles that approximate the shape of a three-dimensional object. if we define a face of a polygon
mesh to be a triangle connecting three vertices of the shape, how many faces at minimum do the following shapes
require?
a. a cube
b. a pyramid with a square base
c. a tetrahedron
d. a rectangular prism
e. a triangular prism

answer: when you burn wood, the carbon reacts with the oxygen in the air to create ash and smoke. that is a permanent change you cannot undo that.

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we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v

a

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answer: i think one of the answer is $150 and $300?

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