The force in the magnetic sector is complicated by the velocity dependence but with the right conditions ( uniform velocity for example ) ions of different masses will separate physically in space into different beams as with the electric sector.
12.
An "'oblique spherical hypercone "'would be a sphere which expands with time, again starting its expansion from a point source, but such that the center of the expanding sphere moves with a uniform velocity.
13.
By contrast, the term associated with the changing static electric field of the particle and the magnetic term that results from the particle's uniform velocity, are both associated with the electromagnetic near-field, and do not comprise EM radiation.
14.
No precession occurs if the particle moves with uniform velocity ( constant so "'0 "'} } ), or accelerates in a straight line ( in which case and are parallel or antiparallel so their cross product is zero ).
15.
A solution of Einstein's field equations is " local " if the underlying equations are invariant ( a condition where the laws of physics are invariant-that is, the same-in all frames which are moving with uniform velocity with respect to one another ).
16.
:( To easily visualize this, imagine an object starting at point A along the border of a circle, traveling at a uniform velocity around the circle's circumference, until it returns to point A . The object has completed one cycle, and the time it took is ( by definition ) equal to the period, hence ?t = T .)
17.
In reality, there is nothing at gravitation constantly pulls objects toward its surface, while Earth is one of the objects the Sun constantly pulls towards itself, causing it to orbit the Sun; the Sun, in turn, orbits the center of the Milky Way; and so on . Two or more than two objects are said to be at rest, if its position with respect to each other is not changing or moving with uniform velocity with respect to each other.
