Answer:
figure c
Explanation:
a neutral body has the same number of charge that's the negatives and positive charges are equal.
Answer:
w = 0.808 rad / s
Explanation:
As indicated by the moment of inertia t the angular velocity of the disks we use the concept of conservation of the angular momentum, for this we define the system as formed by the two discs, therefore the torque during the crash is internal and the angular momentum is conserved
Let's write in angular momentum
Initial. Before impact
L₀ = I₁ w₁ + I₂ w₂
Final. After the rock has stuck
= (I₁ + I₂) w
The two discs are rotating in opposite directions, we consider the rotation of the first positive disc, so the angular velocity of the second is negative
L₀ =
I₁ w₁ - I₂ w₂ = (I₁ + I₂) w
w = (I₁ w₁ - I₂ w₂) / (I₁ + I₂)
Let's calculate
w = (0.47 2.0 - 0.31 1.0) / (0.47+ 0.31)
w = 0.63 / 0.78
w = 0.808 rad / s
in the direction of disc rotation 1
The answer is differentiation. Differentiation is worried about things like rates and increasing velocities, slants and bends ect. Differentiation finds the immediate rate of progress of a capacity as for an autonomous variable. It is utilized when an amount demonstrates non-Linear variety. You can discover the speed of a molecule at a specific time by knowing the separation as an element of time.