6. an arc welding machine delivers 4500 w of power to the surface of two steel plates that are to be joined by a butt weld. sixty percent (60%) of the power is transferred to an area that can be represented by a circle with a diameter of 5 mm. calculate the power density in w/mm2. answers are rounded to 2 decimal places (x. xx).
a. 137.51
b. 229.18
с. 687.55
d. 550.04
e. none of the above

the correct answer is c.stops after infancy and childhood.

myelin is the substance of the central nervous system (cns) that insulates nerve cell axons to increase the speed at which nerve impulse travels. myelination is a process of myelin formation. this process occurs postnatally, begins in the embryo during the midst of early development and finishes after birth.

answer: jesus loves you

explanation:

answer:

true

explanation:

answer:

wth

explanation: