Whenever your friend Ted surfs online, he writes terribly harsh letters to strangers using a bogus email address. Ted's behavior can likely be attributed to the role of in deindividuation.

Physical Anonymity is the correct answer of this question.

Explanation:

Every time your friend Ted surf online, using a fake email address, he sends horribly harsh letters to strangers. Ted's actions can probably be due to Physical Anonymity role in deindividuation.

Physical anonymity. No identification, anonymous identity, Infants inquired their name less assuredly to violate because those left anonymous, uniforms will make group intentions more thoughtful.

only #2 represents an object at rest on a table.

in #1, there is no normal force due to the table; the object is accelerating downward.

in #3, the vertical forces are not balanced; the object is accelerating downward.

in #4, neither the vertical nor the horizontal forces are balanced. the object is accelerating upwards and to the right.