If. Good Handwriting!! Thank You 2. The Friedmann equation 2 0 2 Cl tells us how the reduced scale factor ä changes with time. From astro- nomical observations we know we are in a flat, matter-Lemaitre universe where S2c-0, ΩΤη-0.3089. Or-5 x 10-5( 0) and Ωυ-0.6911. a) Using the 'second form' of the Friedmann equation show, for the current epoch, äo > 0. Thus, the expansion of the universe is accelerating (b) Is there any future time (any possible à > 1) in which ă - 0? In other words, will the acceleration of the universe ever cease, or will our universe continue to accelerate forever? 2. The Friedmann equation 2 0 2 Cl tells us how the reduced scale factor ä changes with time. From astro- nomical observations we know we are in a flat, matter-Lemaitre universe where S2c-0, ΩΤη-0.3089. Or-5 x 10-5( 0) and Ωυ-0.6911. a) Using the 'second form' of the Friedmann equation show, for the current epoch, äo > 0. Thus, the expansion of the universe is accelerating (b) Is there any future time (any possible à > 1) in which ă - 0? In other words, will the acceleration of the universe ever cease, or will our universe continue to accelerate forever?


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