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(a) The distance to a star is approximately 4.50 x 1018 meter. If this star were to burn out today, in how many years would we see it disappear?
years
(b) Find how long does it take for sunlight to reach Mars?
minutes
(c) Find how long does it take for a microwave radar signal to travel from Earth to the Moon and back?
s
(d) Find 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?
(e) Find how long does it take for light to reach you from a lightning stroke 9.1 km away?
1. what accounts for an increase in the temperature of a gas that is kept at constant volume?energy has been removed as
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if you blow air over the top of a fairly large drinking straw you can hear a fundamental frequency due to a standing
During the "heavy bombardment" period of our solar system astroids slammed into earth with large speeds thus resluting in earth becoming warmer. What form did the energy take before it was heat
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