Answer:
B
Explanation:
the river is caused by weathering and erosion is the breaking down of rocks
number of protons in a nucleus
<span>The electrical potential inside a parallel-plate capacitor will increase linearly from the negative to the positive plate. If the charge is moving in the direction is naturally would move, the electric potential energy is said to decrease; if it moves in the opposite direction, it is said to increase. This is akin to lifting an object further away from the surface of the earth. As it is lifted higher, the electrical potential energy increases.</span>
Answer:
a. ≈ 1.22449s
b. ≈ 14.69387m
c. ≈ 0.532415s
Explanation:
Because we are trying to find when it is at it's highest point we can safely say that it's velocity at that point is 0m/s,
therefore we can use the equation:
and do some algebra to get:
Now we plug in our values (note that this is assumed to be on Earth and that because it says that upwards is positive, we set g to be negative to say that it is pointing down):
To find the final height we can use:
and plug in our values to get:
To find the time we can use the time dependent position equation:
This here can be made into a quadratic equation like so (xi is set up to be 0m, so the equation wont have it):
Here we can use the quadratic formula:
And now it would be best if we put in our values (xf = 5m because that is our question):
Finally we have simplified enough to be worth solving for:
We get:
and
Because time is always positive we want to choose the plus answer.