Answer:
B
Explanation:
The control is something that is meant to not be changed, the control is a comparison of the experimental.
It would be 17 m/s
If we use
V2 = V1 + a*t
Sub in 5 for v1
2m/s*2 for a
And
6 for t
That should give you the answer.
Answer:
The atmospheric pressure is
.
Explanation:
Given that,
Atmospheric pressure
drop height h'= 27.1 mm
Density of mercury 
We need to calculate the height
Using formula of pressure

Put the value into the formula



We need to calculate the new height




We need to calculate the atmospheric pressure
Using formula of atmospheric pressure

Put the value into the formula


Hence, The atmospheric pressure is
.
Theories are usually backed up with a lot of evidence. If the evidence is well studied then it is useful information.
Answer: In the 5th dimension, they who claim to know, say that there is only one time, including the past and the future.