All of the above as it states that "<span>a particle attracts every other particle in the universe using a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers"</span>
All isotopes of the same element have the same number of protons
in the nucleus of their atoms, but different numbers of neutrons.
Answer:
The refractive index of the outer coating is 1.52.
Explanation:
Refractive index of interior part, n' = 1.97
critical angle, C = 50.4°
Let the refractive index of the coating is n.
Use the Snell's law,

Answer: The answer is right here and it is corrct
:)
Explanation: I think you can unblocked it but Hope this help :)
Answer: B) They all orbit the sun
Explanation: