There was a clip of super man catching Lois when falling. Questions:
Assuming Lois falls for approximately 9 seconds, what is her instantaneous speed when super man catches her, and how far did she fall?

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When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell

What is the role of the water cycle in maintaining freshwater levels in lake and rivers?

For two variables in a direct proportion, what is the result of doubling one variable?