Mech waves: travel is faster as density of matter increases
EM waves: can pass through matter, travel is slowed as density of matter increases
I think that's all, tell me if I missed anything.
The weightlessness that astronauts experience is sometimes refered to as 'zero gravity'. This statement isn't true however, because their is gravity is space, just not as much. The answer would be because the astronauts are in low gravity. :D
Answer:
third
According to Newton's Third Law, for every action there is an equal and opposite reaction. The player kicks the soccer ball, and the ball “kicks” back, but the player doesn't feel the reaction because the player's leg has more mass and force than the soccer ball.
Answer:
Postural deviations can cause poor balance, muscle pain and skeletal stress.
Explanation:
Answer: 12.5 km/s
I don't really know how to explain this, but here is your answer.
