Answer:
The current flowing through the outer coils is
Explanation:
From the question we are told that
The number of turn of inner coil is 
The radius of inner coil is 
The current flowing through the inner coil is 
The number of turn of outer coil is 
The radius of outer coil is 
For net magnetic field at the common center of the two coils to be zero the current flowing in the outer coil must be opposite to current flowing inner coil
The magnetic field due to inner coils is mathematically represented as
The magnetic field due to inner coils is mathematically represented as
Now for magnetic field at center to be zero
So
=> 
Answer:
Asteroids:
Explanation:
Asteroids are rocky, airless worlds that orbit our sun, but are too small to be called planets. Tens of thousands of these minor planets are gathered in the main asteroid belt, a vast doughnut-shaped ring between the orbits of Mars and Jupiter. Asteroids that pass close to Earth are called near-earth objects.
Answer:
C)It would require more energy to change solid water into liquid water because there are more molecules in this larger piece of ice.
I think there is only one.
<span>
</span>Both are conserved<span>.</span>
Answer:
23 m/s downward
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<em>Taking the downward direction as positive</em>
<u>We are given:</u>
Initial velocity of the marble (u) = 0 m/s
Time interval (t) = 2.3 seconds
Final velocity (v) = x m/s
<u>Solving for the Final velocity:</u>
<u>Acceleration of the Marble:</u>
We know that gravity will make the marble accelerate at a constant acceleration of 10 m/s
<u>Final velocity:</u>
v = u + at [First equation of motion]
x = 0 + (10)(2.3) [replacing the given values]
x = 23 m/s
Hence, after 2.3 seconds, the marble will move at a velocity of 23 m/s in the downward direction
