Time to travel 0.25 m
Time to travel
0.50 m
Acceleration
# of
washers
Initial
velocity
V1
(m/s)
Final
velocity
22
(m/s)
t1
(s)
a = (v2- v1)/(t2- tı)
(m/s)
(s)
1
0.11
0.28
2.23
3.13
0.19
2
0.13 0.36
1.92
2.61
The acceleration of the car with two washers added to the string would be

i don,t know so just answer mine

i think its 100.

hope this !

as given the equation is

2al + 6 hcl > 2 alcl3 + 3 h2(g)

as per equation two moles of aluminum reacts with six moles of hcl to give two moles of alcl3 and three moles of hydrogen gas

given: three moles of al are present and 7 moles of hcl

for three moles of aluminum nine moles of hcl will be required

however as 7 moles of hcl are present so the limiting reagent is hcl

hcl is going to decide the number of moles of product formed

when six moles of hcl are present = 3 moles of h2 are formed

when one mole of hcl is present == 3/6 mole sof h2 will be formed

when 7 moles of hcl are present = 3 x 7/ 6 moles of h2 will be formed = 3.5 moles of h2