Calculate the electron drift speed
A small but measurable current of 1.4 10-10A exists in a copper wire whose diameter is 1.9 mm. Assume the current is uniform.
(a) Calculate the current density.
(b) Calculate the electron drift speed.
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Consider an electrochemical cell constructed from the followinghalf cells, linked by an external circuit and by a KCl salt bridge.1. an Al(s) electrode in 1.0 M Al(NO3)3solution 2. an Pb(s) electrode in 1.0MPb(NO3)2 solution.
A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 200 N and is 3.20 m long. What is the tension in each rope when the 690 N worker stands 2.20 m from one end?
Assuming that Calculus and You currently sells 5,000 copies per year and that sales will continue this pattern of decline, calculate total future sales of the text.
An 10.0 m, 300 N uniform ladder rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.55, and the ladder makes a 50.0° angle with the ground. How far up the ladder can an 710 N person climb befo
A small but measurable current of 1.4 10-10A exists in a copper wire whose diameter is 1.9 mm. Assume the current is uniform. (a) Calculate the current density. (b) Calculate the electron drift speed.
At what price is the elasticity of demand unitary (unit)? If the price increases by 3% from $100 per wigit, what is the approximate percentage change in demand?
A parallel-plate capacitor is formed from two 1.0 cm times 1.0 cm electrodes spaced 2.9 mm apart. The electric field strength inside the capacitor is 1.0 times10^{6} N/C. What is the charge (in nC) on positive electrode?
A buyer orders 3 Dogs houses and 2 Windows, 1 Side panel, and 2 Windows as spare parts. How many of each part are required to fill the order?
Calculate the mass of KI in grams required to prepare 5.00x 102 mL of a 2.80 M solution. How would you prepare 60.0 mL of 0.200 M HNO3from a stock solution of 4.00 M HNO3?
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