Answer:
Explanation:
We know the total diameter of the cell (assumed spherical) is:
Then its total radius
On the other hand, we know the thickness of the cell wall is and its density is the same as water ().
Since density is the relation between the mass and the volume :
The mass is: (1)
Now if we are talking about this cell as a thin spherical shell, its volume will be:
(2)
Where
Then:
(3)
(4)
Substituting (4) in (1):
(5)
(6)
Knowing and :
Answer:
Explanation:
(A) True: It is true.
In junction law, the current entering at a junction is equal to teh current leaving at the junction.
(B) False: It is false.
The kirchhoff's junction law is based on the conservation of charge.
(C) True: It is true.
Energy is used in the circuit.
(D) True: It is true.
It is based on the conservation of charge.
Answer:
The force on a bullet that results from summing all of the forces on that bullet is known as the net force on the bullet.
Explanation:
Net force represents the overall force or the total force acting on an object.
Here, the object is bullet and the net force acting on it is the addition of all the forces acting on the bullet.
Above the core is Earth's mantle, which is made up of rock containing silicon, iron,magnesium<span>, </span>aluminum<span>, oxygen and other minerals. The rocky surface layer of Earth, called the </span>crust<span>, is made up of mostly oxygen, </span>silicon<span>, </span>aluminum<span>, iron, </span>calcium<span>, sodium, potassium and </span>magnesium<span>.</span>