To solve this problem we will apply the mathematical consideration of the electric field on an axial axis of a ring. This definition is already established mathematically and is a subordinate of the definition of the magnetic field of Coulomb's laws. It can be expressed as,
Here,
k = Coulomb's constant
Q = Charge
x = Distance on the axial line
R = Radius of the circle or ring
At x = 1 cm, we have that the total charge is 66.0 μC and the radius 0.1m, then replacing,
Therefore the electric field on the axis of the ring is 5.85MN/C
To solve this problem we must use the trigonometric relations, in this case as we have the ramp and the height the concentric trigonometric property to the 
will allow us to find the angle.
The sine of angle A, is defined as
Therefore the angle of elevation is 8.9°
Answer: here you go i have to put 20 letters in so just ignore this and look at the link.
Answer:
A massive object (like a galaxy cluster) bends the light from an object (like a quasar) that lies behind it.
Explanation:
A massive object, like a galaxy cluster, is able to deform the space-time shape as a consequence of its own gravity, so the light that it is coming from a source that is behind it in the line of sight will be bend or distorts in a way that will be magnified, making small arcs around the cluster with the image of the background object.
This technique is useful for astronomers since they make research of faraway objects (at hight redshift) that otherwise will difficult to detect with a telescope.
Weight is directly related to mass, but it also
depends on the local gravity.
Acceleration is directly related to mass, but it also
depends on the net force acting on the mass.
<span>
<span>
</span></span>Volume is directly related to mass, but it also
depends on the density of the object or sample.
Inertia is directly related to mass, and is completely determined
by the mass. It doesn't depend on anything else, so this may be
the best choice.
