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If the speed of light is 3 x 10^8 m/s, what is its value in km/s? (2021)
If the speed of light is 3 x 10^8 m/s, what is its value in km/s? (2021)
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Q1
If the speed of light is 3 x 10^8 m/s, what is its value in km/s? (2021)
3 x 10^5 km/s
3 x 10^6 km/s
3 x 10^7 km/s
3 x 10^8 km/s
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To convert m/s to km/s, divide by 1000. Therefore, 3 x 10^8 m/s = 3 x 10^5 km/s.
Questions & Step-by-step Solutions
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Q
Q: If the speed of light is 3 x 10^8 m/s, what is its value in km/s? (2021)
Solution:
To convert m/s to km/s, divide by 1000. Therefore, 3 x 10^8 m/s = 3 x 10^5 km/s.
Steps: 8
Show Steps
Step 1: Understand that the speed of light is given as 3 x 10^8 meters per second (m/s).
Step 2: Know that 1 kilometer (km) is equal to 1000 meters (m).
Step 3: To convert from meters to kilometers, you need to divide the number of meters by 1000.
Step 4: Take the speed of light in m/s, which is 3 x 10^8 m/s.
Step 5: Divide 3 x 10^8 by 1000 to convert it to km/s.
Step 6: When you divide 3 x 10^8 by 1000, you can rewrite it as 3 x 10^8 / 10^3.
Step 7: This simplifies to 3 x 10^(8-3) = 3 x 10^5 km/s.
Step 8: Therefore, the speed of light in kilometers per second is 3 x 10^5 km/s.
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