Answer:
i can help you but go to the school Grade 4 like my pro
Explanation:
I think the answer is a although I'm not 100% sure. I think it's becuase it's natural and nothing man made has ever intervened with it
Answer: well we all orbit the sun all the planets do so the
SuN
Explanation: two words common sense
Answer:
Explanation:
Most of this water is locked up in ice, and another 20.9% is found in lakes. Rivers make up 0.49% of surface freshwater. Although rivers account for only a small amount of freshwater, this is where humans get a large portion of their water from.
Answer:
The velocity with which the mass will hit the floor is 
Explanation:
If the tension in the string is 
, for 
we have
,
and for the mass 
From these equations we solve for 
and get:
The kinematic equation
gives the final velocity 
of a particle, when its initial velocity was 
, and has traveled a distance 
while undergoing acceleration .
In our case
(the initial velocity of the particles is zero)
which gives us
which is the velocity with which the mass will hit the floor.
