Explanation:
When there is no change in chemical composition of a substance then it is known as physical change.
When we say that mass is conserved during a physical change then it means that total mass of the substance or object will remain the same from beginning till the end.
For example, a metal box of mass 20 grams is beaten with hammer. Its shape will change which is a physical change and after beaten with the hammer its mass still remains 20 grams.
infiltration and evaporation
Hello there!
The formula for Force is F = MA, or
Force = Mass x Acceleration
Well, since we have a rock falling in free fall, we can use the magical number 9.8 m/s^2 (also known as gravity). We have our value for force, 147N (Newtons).
So now, we have the value of our acceleration, A, and our value of the force, F, in our formula.
147 = 9.8M
To solve for M, we need to divide 147 by 9.8.
147/9.8 = 15
This means our Mass is 15 kg (remember your units!)
I hope this helps!
<span>Negatively charged particles will go toward the positive end of the magnetic field and positively charged particles will go toward the negative end... for two reasons, because the positive is both repelled by the positive part of the field, and its also attracted by the negative end. oh, and on diagrams, the arrows of magnetic flux usually go from negative to positive.
Hope this helps(:</span>
It could be, depending on WHAT distance was graphed,
and how the student labeled the graph's axes.
Most likely, however, she probably drew the graph ...
-- with time on the x-axis increasing to the right,
-- with distance on the y-axis increasing upward,
-- to show the distance FROM the starting point
NOT the distance remaining to the destination.
If that's how she set it up, or if any two of these items are
the other way around, then the line could not slope downward.
THAT would say that the distance from the starting point is
decreasing as time goes on, or the distance remaining to the
destination is increasing as time goes on. That would be silly.