Answer:
100 times brighter
Explanation:
The apparent luminosity of a star follows the inverse square law, which means that the luminosity is inversely proportional to the square of the distance:
where r is the distance.
In this problem, star A and star B have same intrinsec luminosity, but star B is 10 times farther than star A:
We can write the luminosity of star A as follows:
While the luminosity of star B will be:
Substituting :
So, star A will appear 100 times brighter than star B.
Answer:
nnnnnnnahhhh thx for the points tho!
Explanation:
The statements of both students are incorrect.
-- Electrical power, just like mechanical power, is expressed in units of watts.
-- 'Coulomb' is the unit of electrical charge.
-- '400 k ohms' means 400,000 ohms of resistance.
-- 'Volt' is the unit of electromotive force (or potential difference).
There are no 'following statements'.
All in all, a very disappointing question.
95% postive the answer for this question is D. How it allows the purchaser to listen to music anywhere
24 c 25 b 26 a 27 a 28 d 29 d i think