According to newton's first law of motion, what happens to a marble traveling in a straight line on a flat hardwood floor that goes on forever?

question options:

the force applied by the floor to the marble will cause it to roll backward at the same speed it was moving forward.

a force applied by the hardwood floor will oppose the motion of the marble, causing the marble to slow to a stop.

gravity will cause the marble to stop after 6ft.

the marble will continue to roll along the hardwood floor at the same speed in the same direction 20 more seconds.

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.

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