Answer:
The distance will be "0.319 m".
Explanation:
The diagram of the given question is not attached with the problem. Below is the attached figure.
The given values are:


As we know,
The electric field will be equivalent as well as opposite throughout the direction, then
⇒ 
⇒ 
By putting the values, we get
⇒ 
⇒ 
⇒ 
⇒ 
⇒
Answer:
Same mass
Explanation:
5kg and 5kg are the same that's the explanation
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Thermal equilibrium is when a hot and cold object (could also be air) come in contact with each other and over time become the same temperature.
thermal equilibrium is reached when both objects are the same temperature.
Answer
D.Diffraction
Explanation
Diffraction is a property that is experienced by waves when they come across a barrier when they are in motion.
The ways tends to curve behind the barrier. This is called diffraction of waves.
Now, sound is a wave and it also experience diffraction. . So the brother will be able to hear the sound due to diffraction