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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?
The time it takes for a signal to travel from Earth to Mars can be calculated using the equation: Time = Distance / Speed So the time it would take for the signal to travel from Earth to Mars would be: Time = 9.7 × 10^10 m / 3 × 10^8 m/s = 323.333 seconds Since there are 60 seconds in a minute, this converts to approximately 5.39 minutes. So there will be an approximate time delay of 5.39 minutes between sending the signal from Earth and receiving the signal on Mars. (Note: This assumes that Mars is at its closest point to Earth. The actual time delay can vary greatly depending on the relative positions of Earth and Mars in their orbits.)
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