light travel with a velocity1.5 x 10^8 m/s in a medium on the
second medium is velocity becomes 0.75x10^8 m/s
What is refractive inder of the second medium with
respect to the first medium
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In equation form, Newton's second law of motion is a=Fnetm a = F net m . ... The weight w of an object is defined as the force of gravity acting on an object of mass m. The object experiences an acceleration due to gravity g: w = mg. If the only force acting on an object is due to gravity, the object is in free fall.
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