What allows for the investigation of a variable? can someone . a: variable b: hypothesis c: experiment

Experiment

Explanation: If you want to study a variable you should do small changes and observe how the variable changes.

This process is called an experiment, where the investigator does small changes and tries to understand how these changes affect the variable. Trying to create a model that describes the variable.

it about 600 mph from what i calculated

need to see circuit to get time constant