Ek = 1/2 mv^2
9 × 10^4 = 1/2 × 800 × v^2
9 × 10^4/400 = 400 v^2 / 400
9 × 10^4/400 = v^2
√225 = v
15 ms⁻¹ = v
That's the only way I know how to work it out
I think in this case velocity and speed would be considered the same because me
s = d/t and v=d/t
one is distance travelled and the other is displacement of a body
Answer is 1 molecule of S
<h2>Hello!</h2>
Answer:
If we are talking about an electrically neutral atom, it has 23 electrons.
<h2>Why?</h2>
An electrically neutral atom has the same number of protons (positive charge) and electrons (negative charge).
When an atom has more protons than electrons, it's called positive ion (cation), it's an ion with a positive charge.
When an atom has more electrons than protons, it's called negative ion (anion), it's an ion with a negative charge.
The new charge on 7.0 µC ball is 10.5 µC and the new charge on 14.0 µC ball is 10.5 µC.
The change in the electrostatic force after the experiment is 0.031 N.
The given parameters:
- Charge on first metal ball, q1 = 7.0 µC
- Charge on second metal ball, q2 = 14 µC
- Distance between the charges, r = 1.9 m
<h3>Charge on each ball after experiment</h3>
After the experiment the charges will be at equilibrium, and the charge on each metal ball will be equal.
The new charge on 7.0 µC ball = 10.5 µC
The new charge on 14.0 µC ball = 10.5 µC
<h3>Change in electrostatic force</h3>
Lear more about electrostatic force here: brainly.com/question/17692887
Answer:
c - Association soccer
because there is football in form of American football, hence it's soccer