Answer:
Explanation:
When an electric charge is immersed in an electric field, it experiences a force given by the equation
where
q is the charge
E is the magnitude of the electric field
In this problem, we have:
is the charge on the small piece of lint
is the force experienced by the charge
Therefore, we can find the magnitude of the electric field by re-arranging the equation and solving for E:
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No. A substance floats or sinks in another substance because of
the densities of both of them.
If the density of the substance is more than the density of the other
one, it will sink. If less than the density of the other one, it will float.
Answer:
A plane mirror is a mirror with a flat (planar) reflective surface. For light rays striking a plane mirror, the angle of reflection equals the angle of incidence. The angle of the incidence is the angle between the incident ray and the surface normal (an imaginary line perpendicular to the surface).
Answer:
Precipitation is the formation of a solid from a solution. It is necessary to centrifuge the precipitate to exert sufficient forces of gravity to bring the solid particles in the solution to come together and settle
Explanation:
When you centrifuge precipitate it enables the nucleation to form.
Centrifuging the precipitate helps in determining whether a certain element is present in a solution or not.
