Answer:
A ) New rocks floating to the surface of the crust.
TRUST
But with (added) speed
It can't be double the speed because 2x0=0
Mass of carbon / Mass of acetone x 100% = Percentage by mass Carbon<span>.
</span>Take the formula mass of acetone, <span>and then do the calculation.</span>
Answer:
- the specific gravity of the block is 0.75
- the specific gravity of the solution is 1.5
Explanation:
Given the data in the question;
first we find the specific gravity of a block SGB
SGB = ( block vol below / total block vol ) × the specific gravity of water
we substitute
SG = ( 1.5 / (1.5 + 0.5 ) ) × 1
SG = ( 1.5 / (1.5 + 0.5 ) ) × 1
SG = (1.5 / 2) × 1
SG = 0.75
Therefore, the specific gravity of the block is 0.75
specific gravity of solution SG
SG = (total block vol / block below ) × SG
we substitute
SG = ( 2 / 1 ) × 0.75
SG = 2 × 0.75
SG = 1.5
Therefore, the specific gravity of the solution is 1.5
Intertidal zone is the shallowest part of the ocean ecosystem, where the ocean floor os covered and uncovered as the tide goes in and out