Answer:
Explanation:
You could try to say how helpful they are what they are and what they do
Answer:
A. 
B. t = 50 s
Explanation:
A. The vectorial equation of the person who is getting closer to the other person is:

r: position vector
v: speed vector = 6m/s i (if you consider the motion as a horizontal motion)
Then, you replace and obtain:

B. The time is:

d: distance to the observer = 300m
v: speed of the person on the car = 6.00 m/s

Potential Energy= 24m * 14kg * 9.8N/kg = 3292.8J
Answer:
It includes the preserved soft tissue of an organism