The best and most correct answer among the choices provided by the question is <span>B.sound waves</span><span>.
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<span>Particles move together or apart parallel to the direction of the sound wave.
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Explanation:
Work done by gravity is given by the formula,
            W =  ......... (1)
 ......... (1)
It is known that when levels are same then height of the liquid is as follows.
            h =  ......... (2)
 ......... (2)
Putting value of equation (2) in equation (1) the overall formula will be as follows.
        W = 
            = 
            = 0.689 J
Thus, we can conclude that the work done by the gravitational force in equalizing the levels when the two vessels are connected is 0.689 J.
 
        
             
        
        
        
Answer:
The correct answers are the proportionality of the fields concerning distance, vector fields, and forces at a distance.
Explanation:
The similarities between magnetic fields and electric fields are that electric fields are produced by two charges that can be positive and negative. Magnetic fields are associated with two magnetic poles, although they are also produced by moving charges. Both fields are inversely proportional to the square of the distance between the sources, both fields are vectorial and both act by distant forces.
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False. reaction time would be lapse of time between external stimuli and muscular movement