Question
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 lighthouse beacon. Suppose a pulsar rotates once every 1.596 806 448 872 75 4 ms, where the trailing 4 indicates the uncertainty in the last decimal place (it does not mean 4 ms).
(a) How many times does the pulsar rotate in 21.0 days?
(b) How much time does the pulsar take to rotate 3.0 106 times? (Give your answer to at least 4 decimal places.)
s
(c) What is the associated uncertainty of this time?
s
(a) How many times does the pulsar rotate in 21.0 days?
(b) How much time does the pulsar take to rotate 3.0 106 times? (Give your answer to at least 4 decimal places.)
s
(c) What is the associated uncertainty of this time?
s
Answers
I will be happy to critique your thinking.
Related Questions
I read this in a write-up of an experiment using atomic clocks:
To reveal these effects, required...
Which is the recommended way to structure financial goals?
(1 point)
Responses
based on salar...
Atomic clocks utilize the metal cesium to keep time. Cesium is a highly reactive metal that is also...
How do poets choose what structure to use for a poem?(1 point)
Responses
based on what is popula...