How does increasing the distance between charged objects affect the electric force between them? the electric force increases be
2 answers:
the electric force decreases because the distance has an indirect relationship to the force
Explanation:
The electric force between two objects is given by
where
k is the Coulomb's constant
q1 and q2 are the charges of the two objects
r is the distance between the two objects
As we can see from the formula, the magnitude of the force is inversely proportional to the square of the distance: so, when the distance between the object increases, the magnitude of the force decreases.
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Answer:
The answer is 41,4
Explanation:
To understand this problem we need to visualize when block is at the equilibrium position and when the displacement is x=.
According to Newton's law , if we find the force applied to the block, we can find the acceleration since we know the mass of the block.
<u>If you compress a spring by x displacement under F force, the spring's force can be found as:</u>
Therefore
And to find <u>acceleration</u>:
→
→
<u>Answer: </u>
Maximum height reached by the ball thrown up at 30m/s is 3.06 seconds and the height reached is 45.9 meters
<u>Explanation</u>:
Given:
Initial velocity
To find :
maximum height =?
time taken=?
Solution:
<em>Step 1:Finding the time taken to reach the highest point</em>:
The velocity of the ball at its highest ,final velocity v=0
Using the formula,
Where a is acceleration due to gravity.Its value is
Substituting the values:
<em>Step 2: finding the highest point </em>
Using the formula
where
s is the maximum highest.
Substituting values
Result:
Thus the maximum height reached is 45.9 meters in 3.06 seconds