Ok, so first we'll start by rearranging the formula.
Subtract log10 Xo from both sides to get
log10 Xf - log10 Xo = nlog10 0.5
Then using log properties you have
log10 (Xf/Xo) = nlog10 0.5
Using another log property we have
log10 (Xf/Xo) = log10 0.5^n
Now we can do
10 ^ (log 10 (Xf/Xo) ) = 10 ^ (log10 0.5^n)
which we evaluate to be
Xf/Xo = 0.5^n
Now we can do
log0.5 (Xf/Xo) = n
Answer:
A physical change is a change that does not change the chemical properties of the substance and is purely physical.
Explanation:
The appearance of the object of chemical may change but its chemical properties are the same.
For example:
- Ice melting
- Water boiling
- Dissolving salt in water
- Cutting paper
I would say the answer is C) because the thermal energy of the coffee going into the cup has to level out until the cup gets warmer and the coffee gets cooler, and they reach the same temperature.Meaning that the jug which has already been at the same temperature(we can assume based on the verbiage “the coffee was poured from the jug to the cup”) which would give the jug more thermal energy.
I'm pretty sure the aswer is B.
Answer:
the answer is I'm pretty that it's
Explanation:
Ur Wellcome