Steel ball bearings of 12 mm diameter are annealed by heating them to 1150 K and then cooling them to 400 K in air at 50ºC and where the convective heat transfer coefficient is 20 W/m^2K. Estimate the time required for the ball’s centers to cool to 127ºC.
What will be an ideal response?
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Which of the following is NOT a step in analyzing?
a. Breaking down a text into its essential parts b. Judging the value of a text c. Examining the parts of a text d. Recognizing the ways the parts of a text work together
You are driving in Santiago. What traffic signs would pertain to the following?
1. You see that you are getting on the freeway. 2. You can’t park here. 3. You have to stop. 4. You have to let other cars go first. 5. There are pedestrians crossing the street.
Circle the word or phrase that best completes each sentence.
Compré estos zapatos que costaban ciento veinte dólares por treinta y cinco dólares. ¡Es una (talla / ganga / medida)!
Dina has always been a _________________ (good) businesswoman than Mildred.
Select the correct comparative or superlative form of the word in the parentheses. A) better B) more good C) best