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# Cosmic Communication: Unveiling the Time Delay in Interplanetary Radio Waves

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Question: On a spacecraft sent to Mars to take pictures, the camera is trigered by radio waves, which, like all electromagnetic waves, travel with the speed of light. The speed of light is 3 × 10^8 m/s and the distance to Mars is 9.7 × 10^10 m. What is the time delay between sending the signal from Earth and receiving the signal on Mars?

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The time delay, t, can be calculated through the equation t=d/v, where d is the distance, and v is the speed of the light. Given: d= 9.7 × 10^10 m v= 3 × 10^8 m/s Substitute these values into the equation: t = (9.7 × 10^10 m) / (3 × 10^8 m/s) This simplifies to approximately 323 seconds or about 5.4 minutes. Hence, the time delay between sending the signal from Earth and receiving the signal on Mars is about 5.4 minutes.

Feb. 8, 2024, 8:02 a.m.

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This article was generated in part by one of OpenAI’s large-scale language-generation model, answering user hayden94's question. Images were generated with OpenAI's AI model, DALL·E 2. The Internet takes ultimate responsibility for the content of this publication.