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Explain why protocols are used in network communications.
AI HintThink about how people from different countries use different languages to communicate with each other. Similarly, computers on a network may use different languages (protocols) to communicate. So, protocols are needed to make sure that they can "speak the same language" and understand each other properly.
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Explain why a centripetal force is needed for the planet to be in a circular orbit.
AI FeedbackGreat effort! But let's make sure we have a clear understanding. The planet's velocity depends on both its speed and direction. The role of the centripetal force is to continuously change the direction of the planet's velocity vector and not its speed, keeping it in a circular orbit. Keep up the good work!
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