An alien on the moon is flashing Morse code with a laser pointer towards Earth. How long would it take each flash to reach Earth if the distance to the Moon is 384,000 km? ______ seconds round your answer to the nearest hundredth of a second.
Please provide an explanation to support your answer.
Please provide an explanation to support your answer.
Add an Answer
More Questions From This User See All
Answers & Comments
Physics
An alien on the moon is flashing Morse code with a laser pointer towards Earth. How long would it take each flash to reach Earth if the distance to the Moon is 384,000 km? ______ seconds round your answer to the nearest hundredth of a second.
What is the formula for time?
What is the speed of light?
Solution:
Convert 384, 000 kilometers to meters by multiplying by 1000:
Express 384000000 in scientific notation:
Substitute the values to the formula for time:
Cancel and divide:
Answer:
The time it would it take the laser to reach the Earth from the Moon is 1.28 seconds.
#CarryOnLearning