Answer:
It has only 1 electron in its valence shell and if that electron is removed it will acquire noble gas configuration
Explanation:
Sodium forms an ion of charge +1 as in its ionic state it has inert gas configuration
It forms an ion of charge +1 when the valence shell electron is removed to gain the noble gas configuration and the electrons can be removed mostly from its valence shell because inner shell electrons will be tightly bounded to the nucleus of the atom and it requires high energy to remove the electron present in the inner shell when compared to the valence shell (outermost shell)
. Both can be represented by balanced equations. Both involve changes to electron arrangements in atoms. Both involve a change in energy. Both result in a change in the identities of elements.
Mechanical advantage is defined as
MA = 4
now we will have
as we need to pull up a box of weight 200 N
now by above formula we can find how much force it requires to pull up the box
so it requires 50 N force to pull the weight of 200 N
Answer:
<h3>The answer is option A</h3>
Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
f is the Force
m is the mass
From the question we have
We have the final answer as
<h3>0.617 m/s²</h3>
Hope this helps you
Answer:
Explanation:
In Coulomb's law the force between the charged objects depends on the distance between them which is inversely proportional to the force and the charge of the objects which is directly proportional to the force with proportional constant K.
Because q₂ is near to another charged object q₁, then, it will experience an electric force exerted by q₁.
F₁₂ = K |q₁| |q₂|/r²
= K (|-e|) (|+e|)/r²
= (9.0 x 10⁹ N.m²/C²) x (1.6 x 10⁻¹⁹ C) x (1.6 x 10⁻¹⁹ C)/ (0.80 x 10⁻⁹)²
= 3.6 x 10⁻¹⁰ N
Force F₁₂ = F₂₁
Because the two charged objects have different signs , then, the force between them will be an attractive force.