Final answer:
In terms of acceleration, twice the charted rate refers to doubling the original acceleration. This is indicative of a situation where the rate of change of velocity, which defines acceleration, is increased by a factor of two.
Step-by-step explanation:
In the context of acceleration, if something is twice the charted rate, it refers to double the original rate of acceleration. Acceleration is the rate of change of velocity, as stated in option (d) of one of the queries. If we look at a scenario where acceleration is graphed as velocity squared versus twice the displacement, the slope of that graph represents acceleration (based on the equation given).
When comparing this scenario to others provided, such as the one involving two parallel plate capacitors with different distances between the plates, we can determine how various changes affect rate-related properties, such as charge on a plate (which remains the same if the capacitors are in otherwise identical circuits), or the capacitance of a capacitor (which doubles if the area of the plates is doubled).
Therefore, if the charted acceleration rate is doubled, the correct answer is (c) Double the rate.