how can you tell the difference between a positively charged and a negatively charged object by using a electroscope

Ashley: Please include the subject in your questions: Science, or Electricity would have been appropriate here.

You can only determine the type of charge by comparing it to a known charge, usually by the process of induction.

Creativity is most often measured by one's ability to think?
a algorithmically
b heurisically
c convergently
d divergently

Creativity is most often measured by one's ability to think?
a algorithmically
b heurisically
c convergently
d divergently

Define phychology and phychology of personal effectiveness.

define it for me...

can you pls what tha meaning of phychology