Any disability income that is taxable will be taxed at your ordinary marginal rate (which, for most people, is between 10% and 28%). Of course, you could owe state taxes on your disability backpay, but most states don't tax Social Security disability benefits. About a dozen states do tax benefits, however, either the same way as the feds or only if you make over a certain amount of adjusted gross income.
1 Psi = 0.0689475729 Bar. Psi is defined as 1 pound of force per square inch. It is the primary pressure unit in united states and widely used in all kinds of applications. 1 pound per square inch (psi) equals to 6 894.75729 pascals.
It is widely used in the daily life particularly in European countries, though that is a non-SI unit. 1 bar is equal to 100,000 Pascals, which is close approximately to atmospheric pressure, so it is often used to represent atmospheric pressure rather than standard atmosphere (101325 Pascals).