I do not know where to even start with this question. I thought if you changed m

Question

I do not know where to even start with this question. I thought if you changed milliseconds to days and mulitpied it by 6, the answer would be correct; however it doesn't seem to be right.

Time standards are now based on atomic clocks. A promising second standard is based on pulsars, which are rotating neutron stars (highly compact stars consisting only of neutrons). Some rotate at a rate that is highly stable, sending out a radio beacon that sweeps briefly across Earth once with each rotation, like a light-house beacon. Pulsar PSR 1937 + 21 is an example, it rotates once every 1.55780644887275 ± 3 ms, where the trailing ±3 indicates the uncertainty in the last decimal place (it does not mean ±3 ms). How many times does it rotate in 6.00 days?

Explanation / Answer

6days * 24hrs/1day * 60mins/1hr * 60s/1min * 1000ms/1min

=5.184*10^8 ms

# of roatiions = this number above divided by time to rotate

5.184*10^8 ms / 1.5580ms = 3.328*10^8 rotations in six days

Adjust the sig figs as your teacher prefers.

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