Answer:
The value of new coulomb force is 1.43 N.
Explanation:
Given;
Coulomb's force in vacuum (air), 
= 10 N
dielectric constant, K = 7
The Coulomb's force between two charges separated by a distance r in a vacuum is given as;
The Coulomb's force between two charges separated by a distance r in a medium with dielectric constant is given as
Take the ratio of the two forces;
Therefore, the value of new coulomb force is 1.43 N.
Answer:
Vector quantity
Explanation:
What is a vector quantity?
-> A vector quantity has both direction and magnitude
What is scalar quantity?
-> S scalar quantity has only magnitude
[] Based on these definitions, 9.7 x 104 km East is a vector quantity because it includes a direction, East.
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- Heather
Explanation:
The speed of an object can be found from the slope of the line which plots its distance over time. The object in motion's speed can be compared with another by the value of the slope or the steepness of the line. The steeper the slope is, the greater the speed.
The space between any two consecutive molecules of a substance is called intermolecular space.
Answer:
2m
Explanation:
The Force of a spring = Spring Constant,K × extension
Hence extension or stretch = 400/200= 2m
