Answer:
55.6 nC
Explanation:
The electric field at the surface of a charged sphere has the same expression of the electric field produced by a single point charge located at the centre of the sphere and having the same charge of the sphere, so it is given by
where
is the Coulomb's constant
Q is the charge on the sphere
r is the radius of the sphere
In this problem we know
E = 890 N/C is the magnitude of the electric field on the sphere
r = 0.750 m is the radius of the sphere
So by re-arranging the equation we can find the net charge on the sphere:
Answer / Explanation:
acceleration is essentially increasing in velocity. [acceleration is literally velocity over time]
So, we can see acceleration on this velocity/time graph (the y-axis is representative of velocity).
Meaning that...
When we increase in velocity, that is acceleration. [A]
When we stay at the same velocity, that is zero acceleration. [B]
<em>> (we are not increasing {acceleration} or decreasing {deceleration} in velocity/ acceleration over time)</em>
When we decrease in velocity, that is deceleration. [C]
When we have <em>no</em> velocity (velocity = 0), that is zero velocity. [D]
So, this curve is already in order of A-B-C-D.
(origin/0 to A = acceleration)
(A to B = zero acceleration)
(B to C = deceleration)
(C to S = zero velocity)
hope this helps!!
The dark spots on the moon are the craters and there light spots are made up of the moon dust technically called regolith
