Answer:
The Average velocity is 750m.
Explanation:
1miles is equal to 3km and 3km is equal to 3000m so a.v = 3000/4= 750m.
Area because CM^2 is the unit used for Area
Nope, imposible. It violates the 2nd law of thermodynamics. Usually the main culprits of the machines to not work are friction and gravity. the rest I'll leave to you.
The term is Social facilitation.
Social facilitation can be defined as an improvement in performance caused by the mere presence of others, it can be further distinguished into two types:
- co-action effects which is a phenomenon where increased task performance is caused by the mere presence of others doing the same task.
- audience effect where performance is increased in the presence of a passive spectator/audience
