answer : D= m/v
Explanation:
all about density and mass and size of the molecules in a liquid and how close they are packed together
Answer:
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Answer:
100.71 cm H2O
Explanation:
In a fluid column barometer, the height of the fluid column is proportional to the pressure. The pressure is by definition:
, where F is a force and A is the area.
In a column barometer the force is given by the weight of the fluid:
, and the mass may be expressed as 
, where 
is the density and V is the volume.
Replacing this in the pressure definition:
In a constant cross section area column, the volume may be calculated as:
where A is the area and h the height. Replacing this in the previous equation:
Different columns may be over the same pressure, so:
Dividing each part for gravity constant:
And isolating hw:
mm
It is equal to 1007,1 cm.
Hey there!
A half-life means after a certain amount of time, half of that substance will be gone/changed after that time.
How many half-lives are in 16 days?
Multiply 16 by 24 (to get the total hours) and divide that by 2.5.
That is 153.6 half-lives.
35(0.5)^(153.6) represents the equation for this.
Simplify this and get 8.88 x 10^(-45).
There will be 2.02 x 10^(-45)g of germanium-66 sample remaining after 16 days.
Hope this helps!
