2. What is the function of myelin in nerve cells? connects nerve cells to each other
insulates nerve cells, greatly increasing the speed at which impulses travel
insulates the brain, protecting it from damage
insulates nerve cells, greatly decreasing the speed at which impulses travel

it should be -8.6 cm hope this out

ice to water 1 water to vapour 2 latent heat

the answer is b, have negligible mass

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft