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:
Decline in immunity.
Explanation:
Immune system is the ability of a human to destroy harmful virus. It is the antibodies which are present in the human body which enables the human to fight the diseases. It helps to detect and correct the cell which upfront any virus or bacteria.
I believe that 108 settlers died within the first six months. <span />
Depend on who you're trying to persuade. Depending on the subject, the audience may be different, so the need for persuasion may have a different appeal. If it's a tragic novel, it may call for emotional and ethical persuasion. In a murder mystery, for example, it may call for logical and rational persuasion. In a fiction novel, it may call for facts and evidence, especially if evidence is needed to be cited. And most often times, persuasion includes interests and opinions, so don't worry about that one.
