Plllzz 20 pts part a: the sun produces 3.9 ⋅ 1033 ergs of radiant energy per second. how many ergs of radiant energy does the sun produce in 3.25 ⋅ 103 seconds? (5 points) part b: which is the more reasonable measurement of the distance between the tracks on a railroad: 1.435 ⋅ 10−3 mm or 1.435 ⋅ 103 mm? justify your answer. (5 points)

Step-by-step explanation:

(A) It is given that, the sun produces 3.9 × 10³³ ergs of radiant energy per second.  We have to find the amount of radiant energy produced by sun in 3.25 ×10³ s.

This can be done by using unitary method.

Radiant energy produced by sun in 3.25 ×10³ s will be :

So, E is the amount of energy produced by the sun.

(b) The more reasonable measurement of the distance between the tracks on a railroad is 1.435 × 10³ mm. This is equivalent to 1435 mm or 1.435 m. There must some reasonable distance between the  railroad.

If we consider 1.435 × 10⁻³ mm. This is equivalent to 0.001435 mm or 1.435 × 10⁻⁶. The value is so small.

ratio is 2 : 9

the answer is three

13.5 : 3