Answer:
The potential for r > rb is equal to zero.
Explanation:
For r > rb, the potential is:

Then, the net potential is:



Answer:
270 Kg e 130 kg
Explanation:
how many times is the number put together
Answer:

Explanation:
We are going to use the accelerated motion formula
on the vertical component taking the upwards direction as positive.
Since <em>at maximum height the speed will be
</em>, the formula can be written as
, which for our values is:

Written to three decimal places.