Physics, 14.05.2021 19:20 tiwaribianca475
In order for someone to shape steel into a sword’s blade, it is necessary to heat and cool the steel. This is often done using a large container of water. Assume a container of water is initially at room temperature (23°C) and the 7500 g steel blade of the sword is at 210°C. After the blade is placed into the water it comes to a final temperature of 25 °C. What is the approximate mass of the water?
Answers: 1
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Physics, 22.06.2019 07:40
Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents
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The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)
Answers: 3
In order for someone to shape steel into a sword’s blade, it is necessary to heat and cool the steel...
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