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How far can light travel in one day and how?
There's 24 hours in a standard day. Each hour has 3600 seconds in it (60 minutes, each of 60 seconds, 60 * 60 = 3600). So, that means light travels 3600 * 24 * 300 000 km in one 24-hour day, about 25920000000 km or 16105941302.792 miles.
What is the displacement of a car traveling 15 km north 10 km east 25 km south and 10 km north.what is the distance it travels?
From the information that you provided, it is not possible to determine the displacement of the car. However, I can answer your second question. The distance is: 15+10+25+10=60 km
What is the average speed of a train that travels at 120 km per hr for 6 hours and then 100 km per hr for 5 hours?
In 6 hours @ 120 km per hour, the train travels 120*6 = 720 km. In 5 hours @ 100 km per hour, the train travels 100*5 = 500 km. So, in all the train travels 720 + 500 = 1220 km in 6 + 5 = 11 hours. Its average speed is 1220/11 =110.9090.. recurring km per hour.
How many square m in a square km?
1 km2 = 1 000 000 m2.
A train travels 495km in 4 hours What is its average speed in km per h to 2 sig fig?
The train travels at 123.7 km/h
