Answer:
The speed of the animals is 1.64m/s.
Explanation:
Let us work with variables and call the mass of the two rats
and
, and the length of the rod
.
Using the law of conservation of energy, which says the potential energies of the rats must equal their kinetic energies, we know that when the rod swings to the vertical position,

,
solving for
, we get:

Putting in the values for
,
,
, and
we get:


Therefore, as the rod swings through the vertical position , the speed of the rats is 1.64 m/s.
The order the boxes would land from slowest to quickest is A,C,B which is option C.
<h3>What is a Parachute?</h3>
This is a device used to slow the motion of an object through an atmosphere by creating drag.
The size of the parachute affects the speed of falling because a larger parachute allows it to displace more air, causing it to fall more slowly. The one with three parachutes which is A will fall slowest and the one with just one will fall fastest.
Read more about Parachutes here brainly.com/question/499768
Answer:
it can contaminate the water
Explanation:
I hope this helps ;)
decomposing water does not require High activation energy
Answer:

Explanation:
The speed is by definition the distance traveled divided over the time it takes to travel that distance. In this case, this distance is the circumference of the wheel, so we have:

where we have written the circumference in terms of its radius.
For our values we then obtain the value:
