1. The speed of the sound is always the same no matter if its creator is moving
or not.
2. Down a mineshaft, the gravitational effect would be less because some of the earth's mass is above
you. That mass pulls you up, so it cancels the effect of some of the mass below your feet thatpulls you
down.
3. According to Einstein's General Relativity, time is slower in a
larger gravitational field. In the mountains, you are farther
from the center of the earth than normal, so gravity is less.
Therefore, your clock should run a bit faster, but probably not
detectable to human observation.
4. The bullets hit the groud at the same time. The rate at which
the moving bullet falls is determined by the force of gravity.
This force is verticle and entirely independent of the horizontal
velocity of the projectile. Its verticle descent is the same regardless of any horizontal velcity it may
have.
5. The fluctuations result from the up-and -down movement of your blood's center of gravity
as your heart pumps.
6. If you are from the 2009, how can you make a underwater base that does
not sink nor float.
7. The ball will reach the bottom first. Because it has less mass on the outside.
8. Smaller one is stronger
9. Water solid crystal has a special formation when there movement decreases.
This formation pushes each molecule outwards making the ice expand.
10. Since there is no gravity to compare to, 0.
11. Yes, but not likely to give much effect on you.
