Answer:
Water
Explanation:
Because it does not conduct much energy.
It moves relative to the stars
Answer:
<em>From the image, the force as shown in option A will exert the biggest torque on the cylinder about its central axes.</em>
Explanation:
The image is shown below.
Torque is the product of a force about the center of rotation of a body, and the radius through which the force acts. For a given case such as this, in which the cylinders are identical, and the forces are of equal magnitude, the torque at the maximum radius away from the center will exert the maximum torque. Also, the direction of the force also matters. To generate the maximum torque, the force must be directed tangentially away from the circle formed by the radius through which the force acts away from the center. Option A satisfies both condition and hence will exert the most torque on the cylinder.
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In a series circuit, the current through each of the components is the same, and the voltage across the circuit<span> is the sum of the voltages across each component.
</span>In a parallel circuit<span>, the voltage across each of the components is the same, and the total current is the sum of the currents through each component.</span>