Answer:
Unclear without more information
Explanation:
This is about transfer of energy. If you assume there is no energy lost to the environment (virtually impossible) - then all of the potential energy at the beginning would be transferred to kinetic energy along the route.
So, assuming that the rollercoaster has a velocity of 0 m/s at point A, then you can calculate the potential energy using: 
At the point D, you would assume that the energy is split between some kinetic energy and some potential energy. So, we could say that the total energy is the sum of these: 
If we assume all energy is transferred (ie. no energy lost to friction/heat etc) then we can equate these two and solve:
However, this answer seems unlikely given the drawing - which implies that there is perhaps more information that is missing??
So you don't need help, if you do then lmk and i'll help
Answer:George Washington
Explanation:On April 30, 1789, George Washington, standing on the balcony of Federal Hall on Wall Street in New York, took his oath of office as the first President of the United States.
Answer:
average speed is 0.159 m/s
average velocity = 0.0011 m/s
Explanation:
given data
time = 41.6 s
total distance = 6.65 m
length = 0.0463 m
to find out
average speed and the magnitude average velocity
solution
we know average speed formula is
average speed = 
...............1
put here value
average speed = 
average speed is 0.159 m/s
and
average velocity formula is
average velocity = 
...............2
here displacement is initial point to final point and here is 0.0463 m
put here value
average velocity = 
average velocity = 0.0011 m/s
Answer:
300,000,000 and the second question is the same.
Explanation:
Edge
