Answer:

Explanation:
Given
charge on the fixed particle, 
mass of the second charge, 
distance between the fixed charge and the floating charge on the top, 
- According to the question the second charge is floating just above the fixed positive charge despite of gravity this means that the floating charge is also positive in nature and hence feels the repulsion from the fixed charge which is equal in magnitude to the gravitational force on the charge.
where:
permittivity of free space
g = acceleration due to gravity


Answer:
The drum drill is just one option in stride frequency development. Most of the time, the drum drill can be seen as just a rhythm drill that allows an athlete to relax and experiment with the right range of motion and bounce. A solid background in floating drills and developing reactivity should help athletes mold their stride into a balanced motion that maximizes their speed.
I have used frequency drills for years and now understand the nature of stride development mainly from shaping the stride parameters we all have known about for a long time. The drum drill is a special exercise that can make a great change in athletes who are receptive to improving and with a coach who is worth their salt in instruction. The drum drill is just one option for improving an athlete, and it’s more than fine to use any method you see fit that helps improve stride frequency.
Explanation:
Answer:
F = 3 fo
Explanation:
The electric force is given by Coulomb's law
F = k q₁ q₂ / r²
where k is the Coulomb constant and is equal to 8.99 109
with the initial charge the force is
Fo = k q₁ q₂ / r²
Fo =k q₁ q₂ / r²
In this case it is indicated that charge 1 is changed by the lithium atom a = 3 P
we substitute
F = k 3p p / r²
F = 3 (k p² / r²)
F = 3 fo
we see that the charge increases by three orders of magnitude
Answer:
question 1: force
question 2: velocity or inertia
question 3: 0