The characteristic that gives an element its distinctive properties is its number of protons because the number of protons of any element represents its atomic number.
<h3>What is the atomic number?</h3>
The total number of protons present in an atom is known as the atomic number of that atom. The atomic number has no correlation either with the number of neutrons or the number of electrons present inside an atom.
Since the number of protons in any element corresponds to its atomic number, this property provides an element with its particular features.
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Voltage (V) = 12 v
Current (I) = 0.4 A
Time (t) = 5min = 300sec
Power = Voltage x Current
= V x I
= 12 x 0.4
Power = 4.8wats = 4.8W
Power = Energy / Time
Energy = Power x Time
Energy = 4.8 x 300
Energy = 1440 joules
Final answer : 1440J
The best way to arrange the salon to best use what he has is:
- Place the bulb in the middle of the wall
- Directly face the chair and mirror in front of the bulb for proper lighting and reflection
- Place the chairs side by side of each other
- Each mirror should be facing each chai
<h3>What is Reflection?</h3>
This refers to the change in direction of a wavefront between two different media so that the wavefront returns to its originating medium.
Hence, we can see that from our knowledge of shadows and reflection, we can note that mirrors reflect and light helps to bring detail in a dark area and the chairs should be facing the mirrors directly so the customer can see his hair and how it is being cut by the barber.
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As we know that here no air resistance while ball is moving in air
So here we will say that
initial total energy = final total energy

here we know that
(as it will be on ground at initial and final position)
so we will say

since mass is always conserved
so we will say that final speed of the ball must be equal to the initial speed of the ball
so we have
