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Two wires on a piano are the same length and are stretched to the same tension. Wire 1 vibrates at a frequency 1.5 times that of wire 2. Calculate the ratio of their masses (m1/m2).
A Doppler speed meter operating at exactly 1.02 x 10^5 Hz emits sound waves in the direction of anoncoming baseball. The meter detects the reflected sound waves and measures a beat frequency of .30
Derive the explicit form inx-y coordinates for the potential contribution due to the fourths-derivative T of the octupole strength, for octupole phase equal to zero, and factor out the fourth deriva
What is your analysis on the societal implications of using this process (atomic nuclear decay)?
Assume the home uses about 850 kWh of electricity per month, which corresponds to approximately of electrons at the voltage of a fuel cell. 2.65*104
Read the article Basic Choices and Constraints on LongTerm Energy Supplies Paul B. Weisz. Summarize the article in your own words (provide a one-page report).
Some analysts estimate that cars and trucks could be made 60% more efficient than they are currently. How long will the Alaskan oil reserves last if the annual transportation energy demand is redu
A solid disk (r=0.20 m, M=0.50 kg) is suspended from the end of an L=0.30m long rod (m=0.30kg, crosssectional area of 2.0 cm^2).This pendulum is suspended on a frictionless pivot on the rod at the e
Using reliable sources, write a summary of the concept of energy return on energy invested (EROEI). Provide some estimates of the EROEI for petroleum extraction from tar sands.
Calculate the per capita energy use for China and India. The populations of each country should be obtained from reliable sources.
Write a summary of the concept of energy return on energy invested (EROEI). Provide some estimates of the EROEI for petroleum extraction from tar sands.
How does bioremediation restore stability or clean up toxic pollutants? How does bioremediation control levels of pollution? Explain how and why the relationship between fungi and plant roots is mu
How is PCR superior to colony hybridization for identifying DNA sequences of interest? What is the natural function of bacterial restriction endonucleases? How might the presence of restriction enzym
What is the difference between saturated and unsaturated fatty acids, and which allows cells to function properly? What are the primary, secondary, tertiary, and quarternary structures of proteins? Pr
Draw expected results if powder samples of Al2O3 and SiO2 are studied using TG and DSC in the temperature range of 30 - 1500 oC.
You are interested in determining the rate of reaction with respect to I in the reaction of KI and Na2S2O3 to form I2and K2S2O8. What reagent volume(s) would you vary in time trials to get this i
Which factors influence the death of microorganisms? How? How does the activity of lysozymes protect the eyes from microorganisms?
What percentage difference in the radius of the Earth does this change in acceleration represent?
If 5.00 g of Cl2 gas is bubbled into one NaI solution, and 5.00 g of liquid bromine is added to the other, calculate the number of grams of elemental iodine is produce in each case.
Bloodhound, a 1,000 mph super-sonic car can accelerate from a standing start to 1000 mph in less than 42s. During this time it "stays on the ground at all speeds". Calculate Bloodhounds acceleration
What are the names of the four large Galilean moons of Jupiter? What information do we need to record to be able find the period and semi-major axis of the orbit for each Moon?
Fit a linear regression model and plot your estimates for β0 and β1 as N increases, together with a line indicating their true values. Supply your code.
Plot your estimates for β0 and β1 as N increases, together with a line indicating their true values. Supply your code.
Calculate the proportion of the 104 repeated experiments that contain the true success parameter, and comment. Supply your code.
Provide a scatter plot of typical output, and give the (empirical) correlation. Comment on the correlation and dependence of (X, Y ). Supply your code.