You've made the finals of the Science Olympics! As one of your tasks, you're given 4.0...
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You've made the finals of the Science Olympics! As one of your tasks, you're given 4.0 g of copper and asked to make a wire, using all the metal, with a resistance of 3.0 Ω . Copper has a density of 8900 kg/m3. Please answer Part B! I included the answer for Part A in case you need it! |
Part A Part complete What length will you choose for your wire? Express your answer with the appropriate units.
Part B What diameter will you choose for your wire? |
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You've made the finals of the Science Olympics! As one of your
tasks, you're given 4.0...
You've made the finals of the Science Olympics! As one of your tasks, you're given 7.0...
You've made the finals of the Science Olympics! As one of your tasks, you're given 7.0 g of copper and asked to make a wire, using all the metal, with a resistance of 9.0 92. Copper has a density of 8900 kg/m Part A What length will you choose for your wire? Express your answer with the appropriate units. НА L= Value Units Submit Request Answer Part B What diameter will you choose for your wire? Express your answer with...
You've made the finals of the Science Olympics! As one of your tasks, you're given 1.5...
You've made the finals of the Science Olympics! As one of your tasks, you're given 1.5 g of copper and asked to make a cylindrical wire, using all the metal, with a resistance of 1.1 Ω . What length ℓ will you choose for your wire? What diameter d will you choose for your wire?
You've made the finals of the Science Olympics! As one of your tasks, you're given 7.0...
You've made the finals of the Science Olympics! As one of your tasks, you're given 7.0 g of copper and asked to make a wire, using all the metal, with a resistance of 9.0 9. Copper has a density of 8900 kg/ml What length will you choose for your wire? Express your answer with the appropriate units. LE Value Units Submit Request Answer Part B What diameter will you choose for your wire? Express your answer with the appropriate units....
1. Part A What is the diameter of a 1.00-m length of tungsten wire whose resistance...
1. Part A What is the diameter of a 1.00-m length of tungsten wire whose resistance is 0.45 Ω ? Express your answer using two significant figures. 2. Part A What is the maximum instantaneous power dissipated by a 3.4-hp pump connected to a 240-Vrms ac power source? 1 hp = 746 W. Express your answer using two significant figures. Part B What is the maximum current passing through the pump? Express your answer to two significant figures and include...
How to do these two problems 3. -1 points OSColPhys2016 20.1.WA.008 My Notes Consider a copper...
How to do these two
problems
3. -1 points OSColPhys2016 20.1.WA.008 My Notes Consider a copper wire with a diameter of 2.51 mm. (a) What is the drift speed of the electrons in the copper wire when a current of 11.0 A flows through it? Assume that each copper atom contributes one free electron to the metal. The density of copper is 8.92 g/cm3 m/s (b) How does this drift speed compare to the random rms speed of an electron...
Now let's consider the resistance of speaker wire. Suppose you're hooking up a pair of stereo...
Now let's consider the resistance of speaker wire. Suppose you're hooking up a pair of stereo speakers, You happen to have on hand some 20-m-Jong pieces of 16 gauge copper wire (diameter 1.3 mm); you use them to connect the speakers to the amplifier. These wires are longer than needed, but you just coil up the excess length instead of cutting them. What is the resistance of one of these wires? To improve the performance of the system, you purchase...
Part A You're a consulting engineer specializing in athletic facilities, and you've been asked to help...
Part A You're a consulting engineer specializing in athletic facilities, and you've been asked to help design the Olympic ski jump pictured in figure below. Skiers will leave the jump at 27 m/s and 9.5° below the horizontal, and land 55 m horizontally from the end of the jump. Your job is to specify the slope of the ground so skiers' trajectories make an angle of only 3.0° with the ground on landing, ensuring their safety (Figure 1) What slope...
You've made the finals of the Science Olympics! As one of your tasks, you're given 7.0 g of copper and asked to make a wire, using all the metal, with a resistance of 9.0 92. Copper has a density of 8900 kg/m Part A What length will you choose for your wire? Express your answer with the appropriate units. НА L= Value Units Submit Request Answer Part B What diameter will you choose for your wire? Express your answer with...
You've made the finals of the Science Olympics! As one of your tasks, you're given 7.0 g of copper and asked to make a wire, using all the metal, with a resistance of 9.0 9. Copper has a density of 8900 kg/ml What length will you choose for your wire? Express your answer with the appropriate units. LE Value Units Submit Request Answer Part B What diameter will you choose for your wire? Express your answer with the appropriate units....
How to do these two
problems
3. -1 points OSColPhys2016 20.1.WA.008 My Notes Consider a copper wire with a diameter of 2.51 mm. (a) What is the drift speed of the electrons in the copper wire when a current of 11.0 A flows through it? Assume that each copper atom contributes one free electron to the metal. The density of copper is 8.92 g/cm3 m/s (b) How does this drift speed compare to the random rms speed of an electron...
Now let's consider the resistance of speaker wire. Suppose you're hooking up a pair of stereo speakers, You happen to have on hand some 20-m-Jong pieces of 16 gauge copper wire (diameter 1.3 mm); you use them to connect the speakers to the amplifier. These wires are longer than needed, but you just coil up the excess length instead of cutting them. What is the resistance of one of these wires? To improve the performance of the system, you purchase...
Part A You're a consulting engineer specializing in athletic facilities, and you've been asked to help design the Olympic ski jump pictured in figure below. Skiers will leave the jump at 27 m/s and 9.5° below the horizontal, and land 55 m horizontally from the end of the jump. Your job is to specify the slope of the ground so skiers' trajectories make an angle of only 3.0° with the ground on landing, ensuring their safety (Figure 1) What slope...
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