yes, beacuse when you lift up the notebook it will come off the table that it is sitting on. the reason that it will fall back to the table is becasue of the force of gravity acting on it
i believe the answer you're looking for would likely 3.0 g because you don't need to add decimals which could like a singular digit. ex 3g
also applies for .2s i believe (don't quote me on that one)
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charles kuen kao is known as the father of fiber optics. fiber optics is the branch of science which is associated with the transmission of information as light pulses as information.
charles kuen kao is mostly influenced by the work of christian doppler. christian doppler is known for doppler's effect.
according to doppler's effect "the frequency of wave depends on the relative speed of source and observer".
hence, option (b) is correct.