Question

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1 there are 86400 second in a day. how many days long is a second? express your answer in scientific notation means standard form.

chapter name exponent

solve OK

Answer 1

We know that 1 minute = 60 seconds.

Then, 1 second = (1/60) minute.

We know that 1 hour = 60 minutes.

Then, 1 minute = (1/60) hours.

We know that 1 day = 24 hours.

Then, 1 hour = (1/24) days.

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Now,

1 second = (1/60) minutes

              = (1/60) * (1/60) hours

              = (1/3600) hours

             = (1/3600) * (1/24) of a day

             = (1/86400) of a day.

            = 0.00001157 days

            = 1.157 * (10)^-5 days

            = 1.16 * (10)^-5 days

Hope this helps!

Answer 2

There are 86400 seconds in 1 day.

86400 seconds = 1 day

1 second = (1 ÷ 86400) day = 0.0000115740740... = 1.16 × 10^(-5) day

So, in scientific notation,

1 second = 1.16 × 10^(-5) day