Answer:
Students in an introductory physics lab are performing an experiment with a parallel-plate capacitor made of two circular alumin
1 answer:
Answer:
0.92 μC
Explanation:
In a parallel-plate capacitor, the electric field formed is equal to the charge density divited by the vacuum permisivity e0, as there are no dielectric between the plates. e0 is equal to 8.85*10^-12 C^2/Nm^2. The charge density is the total charge of each individual plate divided by its area. Then, the maximum charge allowed will be equal to:
or 0.92 μC
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the correct answer is D- Acceleration depends indirectly on the mass.
According to Newton's second law, the force F, the mass m and the acceleration a are related as follows:
Therefore,
The acceleration <em>a₁ </em>of the mass<em> m₁ =1 kg</em> is given by,
The acceleration <em>a₂ </em>of the mass <em>m₂=10 kg</em> is given by,
The smaller mass has greater acceleration.
Thus, when the force applied on two bodies of different masses remains constant, then,
Acceleration is inversely proportional to the mass of the body.
Explanation:
If an object has a moment of inertia I₀ about an axis, then the moment of inertia about a different, parallel axis is I = I₀ + md², where d is the distance between the axes.
For example, consider a horizontal thin rod rotating about a vertical axis passing through its center. It has mass m and length L. Its moment of inertia is known to be I = 1/12 mL².
Now consider the same rod, but this time we move the axis of rotation L/2 to the end of the rod. We can use parallel axis theorem to find the new moment of inertia:
I = I₀ + md²
I = 1/12 mL² + m (L/2)²
I = 1/12 mL² + 1/4 mL²
I = 1/3 mL²
