Answer:
Explanation:
The objective lens gather light from the specimen, magnifies the image of the specimen and projects the magnified image into the body tube. The ocular lens magnifies the image. It contains a measuring scale called a ocular micrometer.
The force of gravity is proportional to 1/r^2, where r is the radius (distance) between the objects.
So if the force was originally

, doubling the distance between them would make the new force
Answer:
I don't know what the hell is going on with the this.
Answer:
1.75M
Explanation:
The problem deals with finding the molarity of the given compound.
The compound is:
Na₂SO₄.10H₂O
Mass of the compound = 10.5kg = 10500g
Volume of the compound = 18.6L
Molarity is the number of moles of solute in a solution;
Molarity =
Number of moles =
Molar mass of Na₂SO₄.10H₂O = 2(23) + 32 + 4(16) + 10[2(1) + 16]
= 322g/mol
Now;
Number of moles =
= 32.6mole
So;
Molarity =
= 1.75M