Answer:
so the exact time can be measured
Explanation:
if it is not used then let's say 2 athletes finish the race at the time 20 second so it won't be exact and you would not know who is first and if it is used then you even know how much or which part of the second it is, hope you understand . brainy plzz
<span>They deliver oxygen to the blood.
For the regular body activities to be carried out.
Acid-base balance or body temperature control.</span>
<h2>
Answer: approx. 1.625 m/s²</h2>
<h3>
Explanation:</h3>
The acceleration due to gravity on the surface of the Moon is approximately 1.625 m/s².
Compare that to the surface of the earth which is approximately 9.8 m/s². That makes the acceleration on the moon about 16.6% that on Earth's surface.
After x seconds, an object will fall
where a is acceleration due to gravity and t is time
so when t=3.3
the distance it will fall is
=53.361m
it will fal 53.361 meters
Gravity is affected by the mass of the objects and the distance between two objects. f= G(m1*m2)/d^2