Question

Express the number of seconds in a day and in a year in order of magnitude ?

Answer 1

= number of seconds in a minute X number of minutes in an hour X number of hours in a day

= 60 x 60 x 24 seconds

or

it will be

1 day = 86400 seconds

in terms of order of magnitude

1 day = 8.64 x 104 secs ~ 105 secs

[here 8.65 ~ 10]

Answer 2

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