According to Coulomb’s Law which of the following statements are correct? Select all that apply.
2 answers:
The correct options are:
<span>1) The force between two charged objects increases as the charge of either one of the objects is increased.
4) The force between two charged objects increases as the objects are placed closer together.
In fact, the electrostatic force is given by Coulomb's law:
</span>
<span>where k is the Coulomb's constant, q1 and q2 are the two charges, r is the separation between the two charges. As we can see from the equation, if one of the charges (q1 or q2) is increased, than the force increases as well (so statement 1) is correct), and if the two objects are placed closer together (r is decreased), the force F increases as well (so statement 4 is correct as well)</span>
<span>1) The force between two charged objects increases as the charge of either one of the objects is increased.
4) The force between two charged objects increases as the objects are placed closer together.
In fact, the electrostatic force is given by Coulomb's law:
</span>
<span>where k is the Coulomb's constant, q1 and q2 are the two charges, r is the separation between the two charges. As we can see from the equation, if one of the charges (q1 or q2) is increased, than the force increases as well (so statement 1) is correct), and if the two objects are placed closer together (r is decreased), the force F increases as well (so statement 4 is correct as well)</span>
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Answer:
the speed of the block at the given position is 21.33 m/s.
Explanation:
Given;
spring constant, k = 3500 N/m
mass of the block, m = 4 kg
extension of the spring, x = 0.2 m
initial velocity of the block, u = 0
displacement of the block, d =1.3 m
The force applied to the block by the spring is calculated as;
F = ma = kx
where;
a is the acceleration of the block
The final velocity of the block at 1.3 m is calculated as;
v² = u² + 2ad
v² = 0 + 2ad
v² = 2ad
v = √2ad
v = √(2 x 175 x 1.3)
v = 21.33 m/s
Therefore, the speed of the block at the given position is 21.33 m/s.