On a vertical scale of altitude in kilometers and miles above sea level, compare the heights of the following. (Note: The following conversion factors may be helpful: 1 km = 0.621 mi and 1 mi = 5,280 ft.) the top of Pike's Peak—14,000 ft the top of Mt. Everest—29,000 ft commercial airline flight—35,000 ft supersonic transport flight (SST)—65,000 ft communications satellite—400 mi the E and F ion layers—110 km and 330 km respectively aurora displays—400-550 km syncom satellite—23,000 mi (satellite with period synchronous to the Earth's rotation, so it stays over one location) Rank the heights in order of decreasing altitude. (Use only ">" or "=" symbols. Do not include any parentheses around the letters or symbols.)

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Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.