If the length of the rod is 2.65 m, and the mass of the bob and the rod are both 1.4 kg, what is the period of this pendulum
1 answer:
Answer:
T = 5.66 s
Explanation:
The system formed by the bar plus ball forms a physical pendulum
w =
the moment of inertia of a rod held at one end is
I = m L²
we substitute
w =
in this case the turning distance and the length of the rod are equal
d = L
w =
angular velocity and period are related
w = 2π / T
2π / T =
T = 2π
let's calculate
T = 2π
T = 5.66 s
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Answer:
Explanation:
The electric flux is defined as the multiple of electric field and the area that the electric field passes through, such that
When calculating the electric flux, the angle between the directions of electric field and the area becomes important, especially if the angle is changing with time.
The above formula can be rewritten as follows
where θ is the angle between the electric field and the area of the loop. Note that, the direction of the area of the loop is perpendicular to the plane of the loop.
If the loop is rotating with constant angular velocity ω, then the angle can be written as follows
At t = 0, cos(0) = 1 and the electric flux through the loop is at its maximum value.
Therefore the electric flux can be written as a function of time
Answer:
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