Problem 1P:

(II) The age of the universe is thought to be about 14 billion years. Assuming two significant figures, write this in powers of 10 in (a) years, (b) seconds.

Given,

Age of universe Uage = 14 billion years

We know,

1 billion = 1 x 109

Therefore,

14 billion = 14 x 109

Age of universe in years:Age of universe in years (Uage, y) = 14 billion years

Uage, y = 14 x109 .years

Uage, y= 1.4 x 1010 years

(b) Age of universe in seconds:

1 year = (365 days) ( 24 hrs ) ( 60 min ) ( 60 secs )

1 day 1 hr ...