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best and most correct answer among the choices provided by the question is<span> A.
If the uncharged object is a conductor, the charged object can attract opposite
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According to the statement we can deduce that the resulting amplitude of the wave pulse is zero when there is a destructive interference of two pulses and the chain is straight. At this point the potential energy will be zero, therefore when applying the energy conservation theorem, the potential energy must be equal to the kinetic energy and be conserved. The potential energy will be totally transferred as kinetic energy and therefore that will be the only energy present in the string.
Thus, the option C is correct.
Answer:
Radius of bigger loop(R) =4.5cm
Explanation:
Consider a circular path of radius r around the wire. The magnetic field along that path is given by
;
∫B*dl = k*I where I is the current enclosed. From symmetry, ∫B*dl = 2*π*r*B
B = K*I/r, so the magnetic field varies inversely as the loop radius and directly as the current.
The smaller loop current to radius ratio is 12/2.7
The bigger loop current to radius ratio is = 20/R
12/2.7 = 20/R
R = (20 * 2.7)/12
R=54/12
R=4.5cm
40 N (Newton's third law<span> i: For every action, there is an equal and opposite reactio.)</span>
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➷ The dependent variable is the variable that is being measured.
In this case, the dependent variable is the amount of force required to stretch the spring.
<h3><u>✽</u></h3>
➶ Hope This Helps You!
➶ Good Luck (:
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