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You find a spool of pure copper wire while snooping through your brother's purse. The wire has a diameter of 0.3 millimeter and a length of 200 meters. A) Derive a formula for the resistance of the spool as a function of temperature. B) Estimate the resistance of the spool at 0 C and 100 C. C) if this wire is held at 25 C and stressed to 95% of its yield stress, estimate its resistance.
The stopcock between a 3.00 L bulb containing oxygen at 295 torr and 1.00 L bulb containing nitrogen at 530 torr is opened. What is the total pressure of the mixture.
A researcher working on a batch of a ceramic material tested two sets of samples for fracture strength. For one set of samples the specimens were tensile bars with a 10x10x100 mm^3 tensile gauge section
What is the internal energy of an ensemble of 1 mole of particles having two non-degenerate electronic energy levels separated by 1000cm^-1 at 1310K.
How many moles of a monoprotic acid with a Ka=4.9x10^-6 must be dissolved in 750 ml of H2O to produce a solution with pH=4.50
What percentage of the original Ag+ remains in solution when 180 mL 2.10×10-2 M AgNO3 is added to 240 mL 3.76×10-2 M K2CrO4 ?
1. what possible precipitate might form by mixing 50.0 ml of 1.010-4 m nacl with 50.0 ml of 1.010-6m agno3? will it
calculate the amount of 0.020 m kmno4 solution required to completely oxidize 37.99 ml of .100 m feso4 in an acidic
Oxalic acid (H2C2O4) is a useful primary standard for standardizing solutions such as potassium permanganate (KMnO4). In a particular standardization experiment 29.00g of oxalic acid, is titrated with 243.00mL of permangante solution
If the CO2 and O2 in the above reaction are measured at the same temperature and pressure, 1. How many milliliters of O2 are produced per minute. 2. At what rate is the Na2O2 consumed, in grams per hour
What is the probability of a 14C decay taking place in the lungs during a single breath? The atmosphere is about 0.04% CO2, and in an average breath we inhale about 0.5 l of air and exhale it about 3.5 s later.
Write the balanced equation for neutralization of sulfuric acid and sodium hydroxide. How many mL of a 0.2 M solution of sodium hydroxide would be required to neutralize
Using Lewis electron-dot symbols to depict the monatomic ions formed from each of the following reactants, predict the formula of the compound the ions produce.
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