Magnitude of the current density in the wire
A wire has a cross-sectional area of 5.5×10-6 m2. In a time of 3.7 s, 5.8 C of charge flows through it. What is the magnitude of the current density in the wire?
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Assuming no additional heat losses, constant pressure and negligible changes in kinetic and potential energies, find T(t) and Tfinal=Tequilibrium. Graph T(t) and comment.
The F-ratio if 5.76 for comparing 3 means based on equal sample sizes of 10 each. What is the p-value of the test? Use the function F.DIST in Excel. Note that this gives the left tail probability. Give your answer to four decimal places.
A (light) pallet has a load of cases of tomato paste each of which is a cube of length l and has identical mass. Find the center of gravity in the horizontal plane, so that the crane operator can pick up the load without tipping it. (Use the follo
For comparing three means based on equal sample sizes of 10 each, the residual sum of squares is 54. What is the estimate of the variance from this analysis? Give your answer to 1 decimal place.
An antacid tablet was dissolved in 100.00mL of 0.300M HCl. 10.00mL of this solution was titrated to endpoint with 22.16mL of 0.0914M NaOH. How much calcium carbonate was in the antacid tablet?
If a liquid is 0.83% oleic acid and there are 23 drops/mL, what is the volume of pure oleic acid in one drop of solution?
The solar wind consists of particles, including protons, that flow outward from the Sun. Near the Earth, the density of protons in the solar wind is 8.72×10-6 protons/cm3, speeding through space at 475 km/s. What is the magnitude of the curre
The cakes baked at the higher temperature were lighter by 20 on average, and the standard deviation of the differences in the density was 18. What is the p-value for a test of the appropriate hypotheses? Give your answer to 4 decimal places.
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