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1) A car is clocked at 25 m/s in a 50-mi/h zone. Is it speeding? 2) Use...

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Physics

1) A car is clocked at 25 m/s in a 50-mi/h zone. Is itspeeding?

2) Use the definition of the meter to determine how far lighttravels in exactly 1 ns. Express your answer in meters to threesignificant figures.

3) Express a 85 mi/h speed limit in meters per second. Expressyour answer in meters per second.

4) GPS satellites complete approximately two full orbits eachday. Express that rate in degrees per hour. Express your answer indegrees per hour.

5) One m/s is how many km/h? Express your answer in kilometersper hour to three significant figures.

6) Add 3.13105 m and 2.23103 km . Express your answer with theappropriate units.

Answer & Explanation Solved by verified expert
3.7 Ratings (614 Votes)
1 1 mile 1609m1 hour 6060 s 3600sTherefore it is speeding since the limit is 50 mih2 Meter is defined as the distance taken by light in air orvacuum in exactly 1299792458s1ns109 sTherefore distance    See Answer
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