Answer:
myelin sheath
Explanation:
Myelin sheath are the protective tissue that helps in protecting the nerve cells of the human body. It plays an important role in transmitting the information from brain to the body and vice-versa. Healthy myelin sheath helps in better and quick transmission of nerve signals. It is highly resistant towards electrical resistance.
Answer: His acceleration is -18.66m/s^2
Explanation:
Ok, the initial speed is 2.8m/s. (we can define the initial direction as the positive direction).
And he wants to stop, so he must accelerate in the opposite direction as the initial movement, then we would have:
a(t) = -A.
So we have a constant, and negative acceleration.
Now, if we want to find the velocity we must integrate over time, and we will get:
v(t) = -A*t + V0
where V0 is the initial velocity, we know that it is 2.8m/s, and t is the time in seconds.
Then the velocity is:
v(t) = -A*t + 2.8m/s.
Now we know that John is brought to rest in 0.15 seconds after he starts slowing down, this means that at t = 0.15 seconds, his velocity is equal to zero.
v(0.15s) = 0m/s = -A*0.15s + 2.8m/s
2.8m/s = A*0.15s
2.8m/s/0.15s = 18.66m/s^2 = A.
So his acceleration is -A, then we have that:
His acceleration is -18.66m/s^2
Answer:
Total power generation will be 291.465 MW
Explanation:
We have given that river is flowing at rate of V =
Average speed v = 3 m/sec
Height h = 58 m
We know that total mechanical energy is given by
E = KE +PE
Energy per unit mass
Total power generation from the river is given by
So
Multicellular organisms are organisms that consist of more than one cell, in contrast to unicellular organisms.