(a) The distance to a star is approximately 8.30 x 1018 m. If this star were to burn out today, in how many years would we see it disappear? 877 years (b) How long does it take for sunlight to reach Pluto? 330 minutes (c) How long does it take for a microwave radar signal to travel from Earth to the Moon and back? X Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. s (d) How long does it take for a radio wave to travel once around the Earth in a great circle, close to the planet's surface? S (e) How long does it take for light to reach you from a lightning stroke 9.3 km away? S

(a) The distance to a star is approximately 8.30 x 1018 m. If this star were to burn out today, in how many years would we see it disappear? 877 years (b) How long does it take for sunlight to reach Pluto? 330 minutes (c) How long does it take for a microwave radar signal to travel from Earth to the Moon and back? X Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. s (d) How long does it take for a radio wave to travel once around the Earth in a great circle, close to the planet's surface? S (e) How long does it take for light to reach you from a lightning stroke 9.3 km away? S

Astronomy

1st Edition

ISBN:9781938168284

Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff

Publisher:Andrew Fraknoi; David Morrison; Sidney C. Wolff

Chapter17: Analyzing Starlight

Section: Chapter Questions

Problem 38E: Do the previous problem again, this time using the information that the Sun is 150,000,000 km away....

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