- Hello, What is the difference b/w sale and clearance? Thanks?

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What is the temperature of 0.620 mol of gas at a pressure of 1.4 atm and a volume of 12.1 L ? T= - K? What is the percentage by volume of oxygen? A 12-V battery is connected to terminals A and B in R = 62 Ω. Find the current in 24-Ω resistor, 75-Ω resistor, and resistor R.? How do I evaluate the sum for this sigma notation?
N
∑ (2n - 1)
n = 1 Apparently it is N^2 but how do you get that answer? How does proton density, tissue type, relaxation and rf pulse sequence influence signal intenisty in MRI scans??