Answer:
I learnt k,l,m
Explanation:
so 1-3periods have klm and after that klmn
a. t=0.553 s
b. vox(horizontal speed) = 3.62 m/s
<h3>Further explanation</h3>
Given
h = 1.5 m
x = 2 m
Required
a. time
b. vo=initial speed
Solution
Free fall motion
a. h = 1/2 gt²(vertical motion=h=voyt+1/2gt²⇒voy = 0)

t = √2h/g
t = √2.1.5/9.8
t=0.553 s
b. x=vox.t(horizontal motion)

vox=x/t
vox=2/0.553
vox=3.62 m/s
33233728793278237876548742787874578378572098-2932-=93788784787489
Answer:
heating the reactant mix
Explanation:
Heat can result in to speed the reaction process.
hope it helps!