"Reflection" is the change direction of waves when blocked by obstacle
Ohm's law states that: ![V=RI](https://tex.z-dn.net/?f=V%3DRI)
Explanation:
Ohm's law states that in a conductor, the potential difference across the conductor is directly proportional to the current flowing through it. Mathematically,
![V \propto I](https://tex.z-dn.net/?f=V%20%5Cpropto%20I)
where
V is the potential difference
I is the current
The constant of proportionality is called resistance (R), and it gives a measure of "how much the conductor opposes" to the flow of current. Therefore Ohm's law can be rewritten as
![V=RI](https://tex.z-dn.net/?f=V%3DRI)
where R is the resistance. By rewriting the equation as
![I=\frac{V}{R}](https://tex.z-dn.net/?f=I%3D%5Cfrac%7BV%7D%7BR%7D)
we see that the larger the resistance, the lower the current in the conductor.
Learn more about Ohm's law:
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In March and September both of the hemispheres receive the same amount of energy from the sun. this is because neither end of the axis is tilted toward the sun.
London <span>dispersion force is the force that is directly related to the number of electrons.
</span>
Answer:
Magnitude of Force : 0.8 N
Explanation:
We know that the velocity of this particle changes from 15ms⁻¹, or in other words 15m / s, to the respective velocity 25m / s over the course of 2.5 seconds. Given this information we can determine the acceleration of the particle,
a = v₁ - v₂ / t = 25 - 15 / 2.5 = 10 / 2.5 = 4m / s²
Knowing the acceleration we can calculate the magnitude of the force using the formula f = ma - Newton's second law of motion,
f = m
a = 200g
4m / s² = 800 g
m / s²
Remember however that Newtons are in the standard units kg
m / s². Therefore we have to convert 800 g to kg to receive our solution,
800 g = 800 / 1000 kg = 0.8 kg,
Magnitude of Force = 0.8 N ; Solution = Option B