Which statements describe Newton and the law of universal gravitation
1 answer:
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Complete Question
A flat loop of wire consisting of a single turn of cross-sectional area 8.00 cm2 is perpendicular to a magnetic field that increases uniformly in magnitude from 0.500 T to 1.60 T in 0.99 s. What is the resulting induced current if the loop has a resistance of
Answer:
The current is
Explanation:
From the question we are told that
The area is
The initial magnetic field at is
The magnetic field at is
The resistance is
Generally the induced emf is mathematically represented as
=>
=>
Generally the current induced is mathematically represented as
=>
=>
The velocity of the ball is 12.5 m/s
Explanation:
The velocity of the ball is given by the ratio between the distance covered by the ball and the time taken:
First, we calculate the distance covered. We know that the radius of the circle is
r = 0.450 m
And the length of the circumference is
The ball makes 25.0 revolutions, so a total distance of
In a time of
t = 9.37 s
So, its velocity is
Learn more about velocity here:
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