Work occurs when an applied force results in movement of an object in the same direction as the applied force.
Work is done when a force that is applied to an object moves that object. The work is calculated by multiplying the force by the amount of movement of an object (W = F * d). A force of 10 newtons, that moves an object 3 meters, does 30 n-m of work.
The myelin sheath is the structure some neurons have that increases conduction speed.
<h3>What is a neuron?</h3>
Information is transmitted via neurons. They communicate between various brain regions and between the brain and the rest of the nervous system through electrical impulses and chemical signals.
As we know,
An insulating layer of fatty tissue called the myelin sheath surrounds the axon of a neuron and speeds up the electrical signal transmission.
Thus, the myelin sheath is the structure some neurons have that increases conduction speed.
Learn more about the neuron here:
brainly.com/question/24217914
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A constant velocity means the acceleration is zero.
Explanation:
Let's solve the problem by using conservation of momentum:
m1 u1 + m2 u2 = m1 v1 + m2 v2
where:
m1 = 3.5 g is the mass of the blue marble
m2= 1.2 g is the mass of the red marble
u1 = 15 cm/s is the initial velocity of the blue marble
u2 = 3.5 cm/s is the initial velocity of the red marble
v1 = 5.5 cm/s is the final velocity of the blue marble
We can find the final velocity of the red marble by re-arranging the equation and solving for v2 :
v2 = 1/m²(m1 u1 + m2 u2 - m1 v1)=
=1/1.2(3.5×15+1.2×3.5−3.5×5.5 )=31cm/s
