a) It is absolute, so it does not change.
b) Inertial ones.
c) Inside the train the time will slow down relatively to the outside clock. So if one travel at nearly the speed if light for 2 hours on his clock, for outdoor observers it will look like 3 hours.
Answer:

Explanation:
As we know that the pressure inside the liquid level is given as

here we have

h = 10.9 km
also we know that

now we have


Hi!
1 decimeter = 100 millimeters.
Therefore 2 decimeters = 200 millimeters.
Answer:
False
Explanation:
Im pretty sure the answer is false