Which of the following is a possible unit of ultimate tensile strength? Pascal per square meter (Pa/m2)

Gram per cubic centimeter (g/cm3)

Newton per square meter (N/m2)

Kilogram-meter per second (kg m/s)

No units

2 points

QUESTION 8

Select the definition that best describes the term “ultimate tensile strength.”

The stress at which a material begins necking.

A measure of the degree of plastic deformation that a material can withstand before failure.

The stress at which a material transitions from elastic to plastic deformation.

The maximum stress a material experiences before failure.

Indication of how much energy a material can absorb before failure.

Newton per square meter (N/m2)

Explanation:

Required

Unit of ultimate tensile strength

Ultimate tensile strength (U) is calculated using:

The units of force is N (Newton) and the unit of Area is m^2

So, we have:

or

Hence: (c) is correct

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.

the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only