Question
Asked Nov 30, 2019
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11 Write the answers to the following in scientific notation:
a The speed of light in a vacuum is about 2.998 x 108 ms1
Assuming 1 year 365.25 days, determine how far light travels in:
i 1 hour
ii 1 day
iii 1 year
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11 Write the answers to the following in scientific notation: a The speed of light in a vacuum is about 2.998 x 108 ms1 Assuming 1 year 365.25 days, determine how far light travels in: i 1 hour ii 1 day iii 1 year

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Expert Answer

Step 1

The speed of light is

ms
2.998x 108
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ms 2.998x 108

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Step 2

i.

Convert one hour into seconds:

1hour 60x60 s
3600 s
Obtain the distance covered in one hour as follows
Distance speed x time
2.998 x 108 ms
x 3600 s
-10,792.8 x 108
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1hour 60x60 s 3600 s Obtain the distance covered in one hour as follows Distance speed x time 2.998 x 108 ms x 3600 s -10,792.8 x 108

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Step 3

ii.

Convert one day in...

1 day 24x 60x 60 s
86,400 s
Obtain the distance covered in one day as follows
Distance speedx time
2.998 x108 ms186,400 s
259.027.2 x 108 m
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1 day 24x 60x 60 s 86,400 s Obtain the distance covered in one day as follows Distance speedx time 2.998 x108 ms186,400 s 259.027.2 x 108 m

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