Answer:
Value of
Explanation:
We have given
In first case resistance is and current is 1.8 A
Let the potential difference is v
So ----eqn 1
In second case resistance is and current is 1.6 A and potential difference will be as it is a series connection
So ----eqn 2
From eqn 1 and eqn 2
Its actually A. I did the same question and A was the correct answer.
The strength of the electric and magnetic fields there is no physical "distance" of oscillation here. nothing is actually moving up and down if you draw light as a sinusoidal wave, the up and down motion is the strength of the EM fields cheers
Answer:
(a)
(b)
(c)
Explanation:
(a) The total mechanical energy of the system is conserved.
(b) The conservation of energy states
(c) As explained in part (a) the total mechanical energy of the system is equal to the initial kinetic energy, since the potential energy of the system at that point is zero.
Answer:
Explanation:
Using Hooke's law,
F = -kx
Where,
F = force of the mass
k = spring constant/stiffness
x = length of the spring
Given:
F1 = m1*a
= 4.1 * 9.81
= 40.221 N
F2 = m2*a
= 1.5 * 9.81
= 14.715 N
x1 = 2.9 cm
F1/x1 = F2/x2
Therefore,
x2 = (14.715 * 2.9)/40.221
= 1.06 cm.