Will two charged objects (sticky tape) create electric force fields that allow them to interact without touching?
Please answer quickly

Laboratory experiments, observational field studies, and model-building are all examples of different forms of scientific investigations.  in what way do laboratory experiments primarily differ from other forms of scientific investigations?   a.  a laboratory experiment is the only accepted form of investigation within the scientific community.  b.  studies about how things behave in nature or studies involving very large objects are best answered through laboratory experiments.  c.  laboratory experiments involve the identification and control of variables.  d.  data can only be generated through laboratory experiments, not other forms of investigation.

What is the magnitude of the resultant vector round your answer to the nearest tenth

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied