Geography, 22.08.2019 04:20 IDONTHAVEABRAIN
The crab pulsar winds down. theoretical models indicate that the age of a pulsar is about p/(2r), where p is the pulsar’s period, and r is the rate that the pulsar slows with time. the pulsar in the crab nebula is pulsing 30 times a second (so p = 0.0333 seconds). but the time interval between pulses is actually growing longer by 4.2x10-13seconds with each passing second (so r = 4.2x10-13 seconds per second). knowing this, how old is the crab pulsar? how does your age compare to the true age of the pulsar, which was born in the supernova observed in a. d. 1054?
Answers: 2
Geography, 22.06.2019 19:00
Sandstones that form in aeolian (wind/desert) environments appear very different from other sandstones, such as those formed in a beach/ shoreline environment and in rivers on land. give three identifying properties for each of the three sandstones that would tell a geologist which depositional environment they formed in. consider things such as the relationship between transportation and grain size, shape, roundness, sorting, fossils and composition.
Answers: 2
Geography, 24.06.2019 08:30
Will give brainliest asaapppppppppppp plz im in a major hurry to finish which of these pairs of objects exerts the greatest gravitational force on each other? object 1 and object 3 object 4 and object 3 object 1 and object 4 object 4 and object 2
Answers: 2
The crab pulsar winds down. theoretical models indicate that the age of a pulsar is about p/(2r), wh...
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