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
Answer:
The most likely reason is A - Wherever eris went, conflict followed.
Explanation:
Why? Because Eris the Greek Goddess of Discord and Strife
Answer:
He told that Jack was a lazy boy.
Explanation:
In assertive sentences connectives changes and become "told". simple present tense changes into simpal past tense.
a. Helen is frustrated by the challenges associated with learning to communicate.
This would be considered an imperative sentence.
