Arrange the sequence of reactions that occur in the conversion of pyruvate to acetyl-CoA in the correct order: The anion of the hydroxyethyl group attacks one sulfur of the disulfide in lipoic acid, and the resulting intermediate is oxidized to an acetyl thioester. FAD is reduced to FADH2, while the two thiols of reduced lipoic acid are oxidized back to a disulfide. FADH2 is oxidized by NAD producing NADH. Nucleophilic addition of thiamine pyrophosphate to pyruvate to yield hydroxyethyl-TPP and CO2. The acyl thioester derived from lipoic acid

the correct answer would be d. hope this !

the answer is true. hope it .

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied