Engineering, 24.01.2020 20:31 shongmadi77
Felix has placed some copper wire (where the official looked up inferred absolute temperature is 234.5 celsius) 28 gauge wire in a freezer at 15.3 degrees fahrenheit. he measures the resistance of the cold wire to be 15.3 ohms. what is the length of the wire in units of feet?
Answers: 3
Engineering, 04.07.2019 18:10
Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.
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Engineering, 04.07.2019 18:10
Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2
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Engineering, 04.07.2019 18:10
Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented
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Felix has placed some copper wire (where the official looked up inferred absolute temperature is 234...
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