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Most of the world uses the MKS (SI) metric system for science. In this system, distance is measured in metres and time in seconds. Speed is the amount of distance covered by a moving object in a certain amount of time. If an object travels at a constant speed and goes 5 metres in 2 seconds, it has a velocity (speed) of 2.5 m/s (metres per second). For faster velocities, over 1000 m/s, the Mks system moves up a notch and quotes velocity as km/s or kilometres per second. If it moves up again over 1000 km/s, velocity would be measured in Mm/s or Megametres per second. This keeps moving up next to Tm/s or Terametres per second and so forth.

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What is the meaning of condence which is used in science?

Confidence in science refers to the degree of certainty or reliability in the results of an experiment or study. It is a measure of how confident researchers are in the accuracy and precision of their findings. Confidence levels are typically expressed as a percentage, with higher percentages indicating greater certainty in the results.


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