The speed of light Never goes to 0. A is wrong.
The speed of light in refraction does not remain constant. B is incorrect
Light does not repel. That term is reserved for something like magnetism. C is not using the correct vocabulary.
D is the right answer.
Answer:
Power P=246.78 KW
Explanation:
Mass of Elevator=4710 Kg
Can carry load =1910 Kg
Total Mass m to be lifted =4710 kg + 1910 Kg =6620 kg
speed = 3.80 m/s ⇒ per second distance traveled (height h) = 3.80 m and time t = 1 s
Using formula of Power P = 
P = 
P= 6620kg × 9.81 m/s² × 3.80 m / 1s
P= 246780.36 W
P=246.78 KW
Answer:
Electrons
Explanation:
Only Protons and Neutrons are found in the nucleus
You probably already took this but if anyone wanted to know the answer it's D. "A system where matter and energy cannot enter or leave the system".
(I also took the quiz for it and got it correct)
the middle part in the center of the diagram. the nucleus is always in the center.