" when striking, the pike, a predatory fish, can accelerate from rest to a speed of 4.0 m/s in 0.11 s."
1 answer:
In an uniform accelerated motion, the distance covered by the fish is given by:
where
a is the acceleration
t is the time
The acceleration is equal to the increase in speed of the fish divided by the time taken:
If substitute the acceleration into the first equation, we find the distance covered by the fish:
where
a is the acceleration
t is the time
The acceleration is equal to the increase in speed of the fish divided by the time taken:
If substitute the acceleration into the first equation, we find the distance covered by the fish:
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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