Answer:
The new force becomes 3 times of the initial force.
Explanation:
Let q₁ and q₂ are two charged particles. The force between them is given by :
If
and
Also, r' = r/2
New force,
Putting all the above values,
So, the new force becomes 3 times of the initial force.
"Electrostatic forces are attractive or repulsive forces between particles that are caused by their electric charges."
Explanation:
part A
series. combination of resistance
R=R1+R2
given R1=25 and R2=15
R=25+15
R=40
partB
parallel combination of resistance
given R1=220 and R2=430
R=1/R1 +1/R2
R=1/220+1/430
R=13/1892
Answer:
If there is any sheets or padded material in this room you can cover the window, you could turn off all the lights if there is a light switch in the room, you could try to bring a bright flashlight in and shine it into the other room(try to annoy the person watching you so they leave), act really boring and hopefully make the other person lose interest.
Explanation:
(hint) If you actually get in a situation like this place your fingernail against the mirror or glass you think could possibly be a one-way mirror. If there's a gap between your nail and the mirror, it's most likely a genuine mirror :)
Here the maximum angular displacement of the sign board is given 25 degree
mass of the sign is 2.40 kg and its vertical side is 55 cm
Now the moment of inertia of the board about the hinge point is given as
now by energy conservation
so angular speed just before the impact is 2.24 rad/s
Part b)
now a mass of 450 g travels in opposite direction and hit at the lower end
so here we will use angular momentum conservation
Part c)
Again we can use energy conservation