Answer:
So the force of attraction between the two objects is 3.3365*10^-6
Explanation:
m1=10kg
m2=50kg
d=10cm=0.1m
G=6.673*10^-11Nm^2kg^2
We have to find the force of attraction between them
F=Gm1m2/d^2
F=6.673*10^-11*10*50/0.1^2
F=3.3365*10^-8/0.01
F=3.3365*10^-6
<span>So when the charged insulator is placed near the uncharged metallic thing they both attract each other because there will be a distribution of charge between the insulator and uncharged object. This migration of charges happens regardless of their charge positive or negative.</span>
Answer:
Final velocity will be equal to 0.321 m/sec
Explanation:
We have given mass of clay model of lion 
Its speed is 0.85 m/sec, so 
Mass of another clay model 
It is given that second clay is motionless
So its velocity 
Now according to conservation of momentum
Momentum before collision will be equal to momentum after collision
So
, here v is velocity after collision
So 

v = 0.321 m/sec
So final velocity will be equal to 0.321 m/sec
so it has a balanced center of gravity
hope fully this helps