Answer:
Speed, v = 5 m/s
Explanation:
The length of the football field, l = 100 m
the person takes 20 seconds to run its length
v=
t
d
v=
20 s
100 m
v=5 m/s
It is clean and is blue when you take away air hope i helped.
Answer:
the percentage composition of mass of nitrogen in NH OH is 42.86 %
It’s sulfur because it shows little reactivity.
