Reflected shock waves allowed temperatures from 1230 to 1800 K and pressures from 7.3 to 9.5. atm to be obtained. These measurements have shown that cyclopentane is much less reactive than. cyclohexane, as for a given temperature the observed autoignition delay times were about ten times. higher for the C5 compound compared to the C6. Detailed mechanisms for the combustion of cyclohexane and cyclopentane have been proposed to.
Your Tax Dollars at Work. The average income in 2011 was $41,560. With this salary and a single filing status, you could expect to pay around $5,153 (12.4 percent of your earnings) in federal taxes, in addition to $2,577 (6.2 percent) toward Social Security and $603 (1.5 percent) toward Medicare.
If you're self-employed, you're responsible for both parts, making your effective Social Security tax rate 12.4%. For Medicare, the tax rate is just 1.45%. However, there's no limit on the amount of earned income upon which you have to pay the tax. Again, employers match the tax on their employees' behalf, and self-employed individuals have to pay both portions for a total Medicare tax liability of 2.9%.