Most workers in nanotechnology are actively monitored for excess static charge buildup. The human body acts like an insulator as one walks across a carpet, collecting -50 nC per step. What charge buildup will a worker in a manufacturing plant accumulate if she walks 33 steps? charge buildup from 33 steps: nC How many electrons are present in that amount of charge? electrons present: electrons If a delicate manufacturing process can be damaged by an electrical discharge greater than 10^{12} electrons, what is the maximum number of complete steps that any worker should be allowed to take before touching the components? maximum number of steps: steps
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Given that each step collects -50 nC of charge, the total charge buildup from 33 steps is: -50 nC/step * 33 steps = -1650 nC Show more…
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Most workers in nanotechnology are actively monitored for excess static charge buildup. The human body acts like an insulator as one walks across a carpet, collecting -50 nC per step. What charge buildup will a worker in a manufacturing plant accumulate if she walks 33 steps? Number -1650 nC How many electrons are present in that amount of charge? Number 1 x 10^13 electrons If a delicate manufacturing process can be damaged by an electrical discharge greater than 10^12 electrons, what is the maximum number of steps that any worker should be allowed to take before touching the components? Number steps
Penny R.
Most workers in nanotechnology are actively monitored for excess static charge buildup. The human body acts like an insulator as one walks across a carpet, collecting -50 nC per step. What charge buildup will a worker in a manufacturing plant accumulate if she walks 29 steps? charge buildup from 29 steps: -1450 nC How many electrons are present in that amount of charge? electrons present: 719 x 10^10 electrons If a delicate manufacturing process can be damaged by an electrical discharge greater than 10^12 electrons, what is the maximum number of complete steps that any worker should be allowed to take before touching the components? maximum number of steps: 3 steps
Timothy J.
Nanotechnology has become an important field, with applications ranging from high-density data storage to the design of "nano machines." One common building block of nanostructured architectures is manganese oxide nanoparticles. The particles can be formed from manganese oxalate nanorods, the formation of which can be described as follows: $$\begin{aligned} &\mathrm{Mn}^{2+}(a q)+\mathrm{C}_{2} \mathrm{O}_{4}^{2-}(a q) \rightleftharpoons \mathrm{MnC}_{2} \mathrm{O}_{4}(a q)\\ &K_{1}=7.9 \times 10^{3} \end{aligned}$$ $$\begin{aligned} &\mathrm{MnC}_{2} \mathrm{O}_{4}(a q)+\mathrm{C}_{2} \mathrm{O}_{4}^{2-}(a q) \rightleftharpoons \mathrm{Mn}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{2}^{2-}(a q)\\ &K_{2}=7.9 \times 10^{1} \end{aligned}$$ Calculate the value for the overall formation constant for $\mathrm{Mn}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{2}^{2-}$ $$ K=\frac{\left[\mathrm{Mn}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{2}^{2-}\right]}{\left[\mathrm{Mn}^{2+}\right]\left[\mathrm{C}_{2} \mathrm{O}_{4}^{2-}\right]^{2}} $$
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