The Concorde traveled 8,000 km between two places in North America and Europe at an average speed of 425 m/s. What is the total difference in time (in ns) between two similar atomic clocks, one on the airplane and one at rest on Earth, during a one-way trip

snell's law

refractve index = sin incidence / sin refraction

the journeys of marquette, joliet and la salle a) new france expand.

all three of these explorers explored the midwest and the area around the great lakes, which they subsequently claimed for france.

this was a big portion of territory and expanded new france which before then only consisted of quebec province in northeastern canada

the moving of the box is a result of centripetal force. think of that  as a car or a truck in this case creates a turn, the force of friction performing upon the turned wheels of the car runs centripetal force obligatory for circular motion for the things inside it.