Answer:
Explanation:
Given

angular velocity 
Combined moment of inertia of stool,student and bricks 
Now student pull off his hands so as to increase its speed to suppose
rev/s
After Pulling off hands so final moment of inertia is

Conserving angular momentum as no external torque is applied




Max: 152 million km
min 146 million km
Answer:
it Give only one of them a positive or negative charge
Its when the animal repeats what it is taught similar to a child you never really teach them to lie it just happens because they have seen other people do it