For a steel alloy it has been determined that a carburizing heat treatment of 2-h duration will raise the carbon concentration to 0.38 wt% at a point 3.6 mm from the surface. Estimate the time (in h) necessary to achieve the same concentration at a 5.7 mm position for an identical steel and at the same carburizing temperature.

1.jews

2.poles

3.russians

4.gypsies

5. african americans

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fanswer:

explanation:

f

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