Explain how to rotate axes to eliminate xy term for equation
Jose and Aparna were trying to rotate axes to eliminate xy term for equation x^2+2xy+3y^2-4x+5y-30. Jose used a=-pi/8 and Aparna a=3pi/8 used. Students got different equations in x' and y', but both were right. Describe how this is possible.
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You have agreed to make payments of $250 per month plus the additional 1% interest on unpaid balance of loan. Determine total amount of interest paid over term of loan.
Explain at what mass of this substance must evaporate to freeze the 200 g of water initially at 15 C. Heat of fusion of water is 334 and specific heat 4.18. Heat of vaporization 289, and the Compound like CCL2F2.
The correlation coefficient between high school GPA and college GPA is 0.560. For a student with a high school GPA that is 2.5 standard deviations above the mean, we would expect that student to have a college GPA that is how far above the mean?
The heat capacity of a bomb calorimeter was calculated by burning 6.79 g of methane where the energy of combustion =-802 kJ/mol CH4 in the bomb and the temperature changed by 10.1°C.
Jose used a=-pi/8 and Aparna a=3pi/8 used. Students got different equations in x' and y', but both were right. Describe how this is possible.
When the ice melts than what volume of liquid water will form? And after the ice melts how much water could you add to the container? If you have a 250-mL container wholly filled with ice.
An ideal gas primarily at 345 K undergoes an isobaric expansion at 2.50 kPa. The volume rises from 1.00 m3 to 3.00 m3 and 13.2 kJ is transferred to the gas by heat. (i) Determine the change in internal energy of the gas?
A sample of helium gas of 2.60 mol initially at 300 K, and 0.400 atm is compressed isothermally to 1.00 atm. Note that the helium behaves as the ideal gas. (i) Determine the final volume of the gas.
Clothing consists of a static coefficient of friction against steel in the range .6 to 1.0 and a kinetic coefficient in the range of .4 to .7. Determine the minimum rotational frequency in rpm, for which the ride is secure?
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