3
Explanation:
If the equation on the board had shown 3 atoms of carbon on the reactants side, it would need 3 atoms of carbon on the product side to balance it.
This is in accordance to the law of conservation of mass which states that "matter is neither created nor destroyed during the course of chemical reaction, they are only transformed from one form to another".
We expect the same number of atoms on both sides of the equation. For example:
Fe + S → FeS
1 iron atom combines with 1 sulfur atom to produce FeS which contains 1 iron and sulfur atoms.
Learn more:
Chemical equation brainly.com/question/2924195
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Te question is missing some information. However, I'll try to help you out with the steps.
We have the relation between velocity, wavelength and frequency expressed as follows:
c = λμ
where:
c is the speed of the wave
λ is the wavelength of the wave
μ is the frequency of the wave
Substituting in the above equation, we can get the frequency of the wave which is the number of vibrations per units of time
We can then get the periodic time which is 1/frequency
Hope this helps :)
Use equations of motion to get the correct answer!
Answer:
Explanation:
here we know that car starts from rest and continue to accelerate till it will reach to maximum speed of 20 m/s
so we will have
so car will accelerate till t = 10 then it will move with uniform speed
so the distance moved by the car till it accelerates is given as
now it will move with uniform speed for next 36 s
so we have
so total distance moved by the car is given as
