Answer: 
= 5 m/s
Explanation: For collisions, use linear momentum, whose formula is: P = m.v and knowing the law of conservation states that momentum of a closed system is constant in time, i.e. initial momentum equals final momentum:
Suppose the referential for velocity is positive to the right:
The negative sign, in this case, indicates cart A is going to the left.
The magnitude of velocity of cart A is 5 m/s
I'm pretty sure it's true, there might be a thing or 2 they missed the first time around
<span>I would rather spend my vacation in a big city
than in a mountain cabin.</span>
Parallel structure refers to having the same
structure or parts of speech in the same sequence and function. In the sentence,
the parallel structure that needs to be paired with is “in a big city” which is
a prepositional phrase; so, the choice that has the same format is “in a
mountain cabin” which is also a prepositional phrase. “To go,” “staying,” and “being”
are obviously different for they are either an infinitive phrase or participial
phrase.
Answer:
Either the very first sentence or the very last sentence.
Explanation:
The first sentence because it is mainly talking about birds, trying to prove the point. The second sentence because it could have just been talking about the birds for an example on how people could learn a lot from animals..
