If the occupants of the vehicle are not wearing a seat belt, they will continues moving forward at the same speed when brake is applied.
<h3>Newton's first law of motion</h3>
Newton's first law of motion states that an object at rest or uniform motion in a straight line will continue in that form unless it is acted upon by an external force.
The law is also called the law of inertia.
Thus, if the occupants of the vehicle are not wearing a seat belt, they will continues moving forward at the same speed when brake is applied.
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It decreases
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Given that,
Initial force, F = 12 N
First initial charge, q₁ = 3C
First new charge, q₁' = 6C
Initial distance, r = 15 cm
New distance, r' = 45 cm
To find,
The new force of attraction.
Solution,
The force between two charges is given by :
Let F' is the new force.
As q₂ is same in this case.
Dividing equation (1) and (2) :
So, the new force of attraction is 2.67 N.
Answer:
A lens
Explanation:
A lens forms images when light passes Through it bending the rays of in the process.A phenomena called refraction and the speed of light changes in the process because it enters a medium since it's wavelength is reduced.