Answer:
100
Explanation:
= Resistivity of axon
r = Radius of axon
t = Thickness of the membrane
= Resistivity of the axoplasm
Speed of pulse is given by
So, radius is given by
If radius is increased by a factor of 10 new radius will be
So, The radius will increase by a factor of 100.
Answer: A. The stone thrown upward spends more time in the air.
Explanation:
The stone thrown above the horizontal has an initial vertical speed, whose direction is opposed to gravity. It means that it decelerate first before accelerating in the direction of gravity. Where the stone thrown below the horizontal has an initial vertical speed in the direction of gravity, so there is no deceleration.
In consequence, the stone thrown upward spends more time in the air. Correct answer is option A.
Just choose the direction and write down the force shown in the arrow. It's too blurry. Can't do it for u. Sorry.