The question "<span>In a redox reaction the substance that accepts electrons is said to be?" is a bit vague. By definition, a "redox" or "reduction" reaction is one where classified by a gain of electrons. On the other hand, if it is a loss of electrons, then it is an oxidation reaction.</span>
Answer:
The answer is 0.2 .
Explanation:
We can calculate the acceleration since we know that acceleration is change in velocity over time or:
a =Δv/t
where a = acceleration, Δv = change in velocity, t = time.
We know that Δv = v2 - v1 where, v2 = 10 m/s and v1 = 6 m/s
Therefore,
a =
Vx = 2*cos30 = 1.73m's
Other words:
D = Vo*t = 1.4 * 21 = 31.5m. @ 30 Deg.
Dy = 31.5*sin30 = 15.75 m.
<span>Let Fn = normal force
When the sled is moving on level ground then
Fn = mg (on level ground)------(1)
The crest of a hill is rounded. Therefore the child experiences downward centripetal acceleration.
Let centripetal acceleration = a
The two forces acting on the child are
1. Weight mg downward
2. Fn upward
Acceleration = a (downward)
Therefore mg - Fn = ma
Fn = mg - ma (on crest)-----------(2)
From (1) and (2),
Fn on crest is less than that on level ground. </span>