Answer:
D add more string and water
The length of a planet's day is determined by it's
Answer: "People will say the length of a day is determined by just the rotation rate of a planet, but that isn’t entirely true. The orbit around its sun also factors in. What we define as a day is the time between when the Sun is highest in the sky until the next time the Sun is at the highest point in the sky. This isn’t just the time it takes the Earth to rotate once on its axis, though. This is because, as the Earth is rotating, it’s also moving relative to the Sun"
Why x rays have different properties from light even though both originate from orbital transition of electrons in excited atoms?
Answer:
he difference between X-rays and visible radiation is in the energy of each foton.
Explanation:
Visible light and X-rays are electromagnetism waves with the same origin betray the atomic, but the energy of transioin wings is different,
E = h (v_f - v₀)
With this equation we see that the energy is proportional to the difference between the atomic levels where the ranscion occurs, the X-rays the transition involves deep levels n = 1 or 2 for which the energy of the emitted photon is very high.
The visible radiation the transition is between levels closer so that the emitted light has a lower frequency and is in the range of the visibly
Consequently, the difference between X-rays and visible radiation is in the energy of each foton.
What does 'MET' stands for?
Answer:
MET = Metabolic equivalent of task.