Answer:
B
Explanation:
A normal heart rate is from 85-95% the other heart rate is not normal because your heart is beating more than normal
Answer:
s = 50.4 m
Hence, the point C is 50.4 m towards east from point B
Explanation:
Since, the motorcyclist travels at a constant speed in straight line towards east after point B. Therefore, we can use the following equation in this case:
s = vt
where,
s = distance covered = position of point C = ?
v = uniform speed of motorcyclist = 18 m/s
t = time interval = 2.8 s
Therefore,
s = (18 m/s)(2.8 s)
<u>s = 50.4 m</u>
<u>Hence, the point C is 50.4 m towards east from point B</u>
We can study how galaxies evolve because the farther away we look, the further back in time we see.
Answer: Option D
<u>Explanation:</u>
As the galaxies are located far away from us and also as per the broad band theory, these galaxies are spreading as the time goes. So as time passes, the galaxies are moving further light years away.
So depending upon the time taken for the light waves to reach Earth from these galaxies will state the time they have evolved. So the farther or more lately the light reaches the earth surface, the further time back we can see its evolution. Thus option d is correct choice.
The force and the air resistance depends on the mechanical enserfy.
It's vertical position in the air at time 
is
where 
is the acceleration due to gravity. After 1.00 second has passed, its position is
