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
The revision of these two sentences that uses a relative clause is "The orchestra that was seated on stage played a difficult score".
Relative clauses are<u> clauses that start with a relative pronoun</u>. In this case, <u>the relative pronoun that has been used is "that" </u>and <u>the relative clause is "that was seated on stage"</u>. Furthermore, a relative clause is used to identify or define the noun that precedes it. In this case, <u>the noun identified by the clause is "orchestra"</u>. Therefore, the relative clause "that was seated on stage" is postmodifying the noun "orchestra".
The answer is D, he’s a cop looking for a girl named Connie. All you have to do is use key details.
He was happy and felt lonely because he had no one to show. He called the fire his friend.
