Answer:
v = 5 m/s.
Explanation:
Given that,
Mass of a student, m = 55 kg
He traveled 200 m in 40 s
We need to find the student’s average speed. Total distance divided by total time is equal to average speed. It can be written as :

So, the average speed of the student is 5 m/s.
Answer:
The Lewis and Clark expedition was successful. The expedition set out on May 14, 1804, and made it to the Pacific Ocean in November of 1805.
Explanation:
The three belmont principles are Respect for persons,<span> Beneficence and Justice. I believe among the three, In formed consent is </span>considered an application of a respect for person principle. It is i<span>ndividual autonomy of participation in research. Hope this answers the question. Have a nice day.</span>
They probably like gold as a show of status and showing of the money to be people as like a sign that they are rich