Long

Calculate the cell potential of a cell operating with the following reaction at 25°C, in which [Cr2O72‾ ] = 0.030 M, [I ‾ ] = 0.020, M, [Cr3+ ] = 0.20 M, and [H+ ] = 0.60 M. Cr2O72-(aq) + 6 I ‾(aq) + 14 H+(aq) → 2Cr3+(aq) + 3 I2(s) + 7 H2O(l)

Consider a car starting at rest at the beginning of a 250 m street. At time t = 2.0 s it is 20 m along the street. At time t = 4.0 s it is 80 m along the street. Find its average velocity in the: (a) First 2.0 s (b) First 4.0 s (c) Last 2.0 s My work: I h...

C. 0.00294 rad/s^2

C. 100.8 1m*100cm/m /5.6 cm/s = 1800s (7.1-2.4)rad/s/1800s =.00261 rad/s^2

b= sqrt(2gh)