Question

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

Answer 1

help please

Answer 2

Should that say
The sun produces \( 3.9 ⋅ 10^{33} \) ergs of radiant energy per second

Answer 3

yes @jayzdd

Answer 4

$$\large \sf \frac{3.9 ⋅ 10^{33} ~ergs} { second} \times 3.25 ⋅ 10^3 ~ seconds$$

Answer 5

ok is there anything else to that?

Answer 6

@jayzdd ^

Answer 7

now we get out our calculators :)

Answer 8

alright so i calculate that?

Answer 9

yes

Answer 10

alright hold on

Answer 11

i dont know if this is right but i got 1.2675 × 10^30

Answer 12

close

Answer 13

$$ 1.2675 × 10^{37}$$

Answer 14

ohhh ok is that the final answer?

Answer 15

yes and you can round it

Answer 16

ok thank you, can you help with part B also please?

Answer 17

which measurement seems more likely?

Answer 18

um 1.435 ⋅ 10^3 mm?

Answer 19

yes

Answer 20

1 mm is very small , so 10^-3 mm is extremely tiny

Answer 21

right thank you! i have one more question that i have no idea how to work on, can you help me?

Answer 22

okay

Answer 23

Find the value of the following expression:

(2^8 ⋅ 3^−5 ⋅ 6^0)^−2 ⋅ 3 to the power of negative 2 over 2 to the power of 3, whole to the power of 4 ⋅ 2^28 (5 points)

Write your answer in simplified form. Show all of your steps

Answer 24

????

Answer 25

Let's rewrite this long expression

Answer 26

ok

Answer 27

how do i re write it

Answer 28

alright so can you help me solve it

Answer 29

\[ (2^8 ⋅ 3^{-5} ⋅ 6^0)^{−2} ⋅ \frac{3^{-2}}{2^3} 4 ⋅ 2^28\]

Answer 30

alright so the one is parentheses are first correct?

Answer 31

I am not sure about the expression 'whole'

Answer 32

the 4 by the fraction is in square root

Answer 33

got it?

Answer 34

Is there any answer to the last one?