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Q11: Answers – Paper 3 – June 2019
Q11: Answers – Paper 3 – June 2019
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In May 2019, the distance between Earth and Mars was 3.9 x 107 km.
In May 2019, a signal was sent from Earth to Mars.
Assuming that the signal sent from Earth to Mars travelled at a speed of 3 x 105 km per second,
a) how long did the signal take to get to Mars?
There is no working for part b!
Question
11)
In May 2019, the distance between Earth and Mars was 3.9 x 107 km.
In May 2019, a signal was sent from Earth to Mars.
Assuming that the signal sent from Earth to Mars travelled at a speed of 3 x 105 km per second,
a) how long did the signal take to get to Mars?
[2 marks]
The speed of the signal sent from Earth to Mars in May 2019 was actually less than 3 x 105 km per second.
b) How will this affect your answer to part (a)?
[1 mark]