Answer is A. Because the telescope are use in night
The answer was that Copernicus objected to Ptolemaic system where the theory states that the universe is geocentric, where celestial bodies moves around the earth instead of the solar system model where it was patterned to Copernicus' model where science have accepted that the sun is indeed the center of our solar system and not true with Ptolemy's argument.
Here is the energy that is left after the quantity of energy is transformed: 750 j of electrical energy is changed into 400 j of kinetic or mechanical energy, which is then turned into 0.32 j of efficient energy.
To run the fan, electrical energy is utilized.
Here, under the specified circumstances, 750 J of electrical energy is utilized to operate the fan, which is transformed into 400 J of kinetic energy. As a result, 350 J of energy is wasted due to various frictional and resistive losses.
Therefore, we may conclude that only 400 J of the 750 J available energy is used to power the fan, with the remaining energy being wasted as a result of friction.
Additionally, we can state that this fan's effectiveness will be
n = Useful ÷ Total
n = 400 ÷ 750
n = 8 ÷ 25
n = 0.32
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Answer:
I am not 100% sure but i think its because it has moving parts
Explanation:
pls let me know if i was wrong or right in the comments below
hope this helps