Answer:
it cannot be considered a physical change because it occur from the chemical reaction.
Explanation:
because physical change is the change of the size,volume, density,flexibility. in other words its a change in the outer appearance or change in which we can see or feel without using a tool or a machine
hope it help just my opinion
Answer:
The power consumed by the air filter is 9.936 watts
Explanation:
It is given that, the secondary coil of a step-up transformer provides the voltage that operates an electrostatic air filter.
Turn ratio of the transformer, 
Voltage of primary coil, 
Current in the secondary coil, 
The power consumed by the air filter is :
...........(1)
For a transformer, 
So, 
So, the power consumed by the air filter is 9.936 watts. Hence, this is the required solution.
<span>This is the quantum mechanical model of the atom. In this model, electrons are represented by the probability that it lies somewhere in different energy level outside the nucleus. The foundation of quantum mechanics is the Schrodinger equation.</span>
<span>Mosses are plants with no roots and leaves, that may grow on the tree stratum and on shrubs in forests. It is important to be noted that mosses grow in shady places. So they retain humidity and water and are ecoloogically important, because they are shelter for many insects.</span>
