Good job correct you are smart
The electric flow is defined as the change of the charge in relation to the constant of the vacuum permittivity constant.
That is to say that mathematically this expression could be given as
Here,
= Electric Flux
q = Charge
= Vacuum Permittivity
Replacing with our values and solving to find q, we have,
Therefore the charge is enclose within the octahedron with a charge of
Answer:
30 percent is found in ground water.
The circular motion is usually analyzed by using the polar coordinates
. The transformation between Cartesian coordinates (x,y) and polar coordinates is
where basically
corresponds to the distance between the object and the origin of the axes (0,0) while
is the angle which gives the direction.
The main advantage of the polar coordinates is that when analyzing a circular motion, the radius
is a constant, since the object is moving on a circular path, and so it is possible to describe the motion of the object by specifying only the angle
.
The mass of a radioactive element at time t is given by
where
is the mass at time zero, while
is the half-life of the element.
In our problem,
, t=121.0 s and
, so we can find the initial mass
: