During cellular respiration, cells in the human body contribute to the
generation of the weak acid, H2CO3. This reaction can lower the pH of the
blood to dangerous levels. Fortunately, this acid combines with carbonate
ions to form bicarbonate ions.
This causes a shift in the reaction to the
ort
OA) left, products
OB) left, reactants
oc) right, products
OD) right, reactants

i'm assuming that it's c.) red bank..

може ли да зареждате повече информация, моля

(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