A brick is initially 15.27 cm high and an aluminum can is initially 15.28 cm high....
A brick is initially 15.27 cm high and an aluminum can is initially 15.28 cm high. By how much must their temperatures be raised in order for the brick and the can to have exactly the same height?
It is not 35.4 or -35.4
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A brick is initially 15.27 cm high and an aluminum can is
initially 15.28 cm high....
3. A large, 5-cm thick plate of pure aluminum initially at a uniform temperature of 200°C...
3. A large, 5-cm thick plate of pure aluminum initially at a uniform temperature of 200°C is suddenly exposed to a convection environment in which the fluid temperature is 50°C and the heat- transfer coefficient is 1200 W/ m K. Calculate the temperature of the plate at a depth of 1.5 cm from one of the surfaces after 3 min. How much heat is lost from the plate during this time? Ans: Tplate = plane
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A steel plate has a circular hole with a diameter of 1.001 cm. In order to drop a Pyrex glass marble 1.004 cm in diameter through the hole in the plate, how much must the temperature of the system be raised? (Assume the plate and the marble are always at the same temperature.)
If the density of aluminum and gold are 2.70 E3 and 193 E3 kg/m^3 respectively. How...
If the density of aluminum and gold are 2.70 E3 and 193 E3 kg/m^3 respectively. How much aluminium by volume would you need in order to have the same weight as a 4.20 kg piece of gold? Number Units If this piece of gold were a cube it would have sides measuring 6.01 cm, What would the sides of the aluminum be if it were also a cube? Number Units
The theoretical failure strength of high-purity and fully-dense aluminum oxide (Al2O3, alumina) can be up to...
The theoretical failure strength of high-purity and fully-dense aluminum oxide (Al2O3, alumina) can be up to 4 GPa ! In other words, a pristine alumina sample is expected to support this stress, even in tension, since no stress magnifying flaws would be present. Think about that for a second ... most metals yield (bend permanently) at stress levels on the order of 0.1 - 0.5 GPa ... and this is considered their upper limit for structural use. Ceramics like alumina...
Part 1 Before we can consider the effects it might have, we must consider the high...
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Question 4 (1 point) A can of tuna has a diameter of 8 cm and height...
Question 4 (1 point) A can of tuna has a diameter of 8 cm and height of 4 cm. Tuna cans are packaged in rectangular boxes with 27 cans in each case. If the cans are arranged in the box 3 cans wide by 3 cans long by 3 cans high, approximately how much empty space is leftover inside the box? O 5427 cm3 986 cm3 0 1485 cm3 O 6912 cm
5. A 2.0 cm high object is placed 10 cm in front of a lens. An...
5. A 2.0 cm high object is placed 10 cm in front of a lens. An upright image is formed by the lens and is located 20 cm from the lens. (a) (2 pts.) Is the image real or virtual? Explain. (b) (2 pts.) Calculate the focal length of the lens. (c) (2 pts.) Is the lens a converging or diverging lens, explain. (d) (2 pts.) Calculate the magnification of the image. (e) (2 pts.) Calculate the height of the...
Question 13 (1 point) A can of tuna has a diameter of 8 cm and height...
Question 13 (1 point) A can of tuna has a diameter of 8 cm and height of 4 cm. Tuna cans are packaged in rectangular boxes with 27 cans in each case. How much paper would be needed to make a label for one of the cans? *cans don't have a label on the top or bottom O 32.9 cm? 100.5 cm2 O 16.7 cm 300.2 cm
Two sheets of aluminum foil have the same area, a separation of 1mm, a capacitance of...
Two sheets of aluminum foil have the same area, a separation of 1mm, a capacitance of 10pF, and are charged to 12V. Thereafter, the source is being disconnected. (a) The separation is now decreased by 0.1mm with the charge held constant. What is the new capacitance? (b) By how much does the potential difference between the plates change as a result? (c) How might you build a microphone based on this principle? (d) What is the amount of work you...
4) A cylindrical can (radius 10 millimeters) is used to measure rainfall in Stormville. The can is initially empty a...
4) A cylindrical can (radius 10 millimeters) is used to measure rainfall in Stormville. The can is initially empty and rain enters the can during a 60-day period. The height of water in the can is modeled by the function S, where S(t) is measured in millimeters and t is measured in days for 0sts 60. The rate at which the height of water is rising in the can is given by S'(t) = 2 sin(0.03t) of the 60-day period?...
3. A large, 5-cm thick plate of pure aluminum initially at a uniform temperature of 200°C is suddenly exposed to a convection environment in which the fluid temperature is 50°C and the heat- transfer coefficient is 1200 W/ m K. Calculate the temperature of the plate at a depth of 1.5 cm from one of the surfaces after 3 min. How much heat is lost from the plate during this time? Ans: Tplate = plane
If the density of aluminum and gold are 2.70 E3 and 193 E3 kg/m^3 respectively. How much aluminium by volume would you need in order to have the same weight as a 4.20 kg piece of gold? Number Units If this piece of gold were a cube it would have sides measuring 6.01 cm, What would the sides of the aluminum be if it were also a cube? Number Units
Question 4 (1 point) A can of tuna has a diameter of 8 cm and height of 4 cm. Tuna cans are packaged in rectangular boxes with 27 cans in each case. If the cans are arranged in the box 3 cans wide by 3 cans long by 3 cans high, approximately how much empty space is leftover inside the box? O 5427 cm3 986 cm3 0 1485 cm3 O 6912 cm
5. A 2.0 cm high object is placed 10 cm in front of a lens. An upright image is formed by the lens and is located 20 cm from the lens. (a) (2 pts.) Is the image real or virtual? Explain. (b) (2 pts.) Calculate the focal length of the lens. (c) (2 pts.) Is the lens a converging or diverging lens, explain. (d) (2 pts.) Calculate the magnification of the image. (e) (2 pts.) Calculate the height of the...
Question 13 (1 point) A can of tuna has a diameter of 8 cm and height of 4 cm. Tuna cans are packaged in rectangular boxes with 27 cans in each case. How much paper would be needed to make a label for one of the cans? *cans don't have a label on the top or bottom O 32.9 cm? 100.5 cm2 O 16.7 cm 300.2 cm
4) A cylindrical can (radius 10 millimeters) is used to measure rainfall in Stormville. The can is initially empty and rain enters the can during a 60-day period. The height of water in the can is modeled by the function S, where S(t) is measured in millimeters and t is measured in days for 0sts 60. The rate at which the height of water is rising in the can is given by S'(t) = 2 sin(0.03t) of the 60-day period?...
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