Answer:
false
Explanation:
Elastic collision: the collision is said to be elastic if the kinetic energy is conserved during the collision.
If the kinetic energy is not conserved, then the collision is not elastic.
So, here no information is given so we cant say about the type of collision.
So, it is False.
Average velocity =
(distance between start-point and end-point) / (time from start to end)
in the direction of
(direction from the start-point to the end-point) .
a). The average velocity for the first half is
(50m)/(20sec) = 2.5 m/s south.
b). The average velocity for the second half is
(50m)/(22sec) = 2.273 m/s north
c). Average velocity for the round trip is zero, because
the start-point and end-point are the same point.
However ...
Average SPEED = (total distance covered) / (time to cover the distance)
Average SPEED for the round trip is
(100 m) / (42 sec) = 2.381 m/s (rounded)
The energy is 3.06 electronvolts, E = 3.06eV
1eV = 1.6 * 10^-19 J
3.06 eV = 3.06* 1.6 * 10^-19 J = 4.896 * 10^-19 J
<span>17,179,8691,840</span> should be the correct answer
hope this helps
