C is a non-metal and so is O. So the answer is CO
The formula for the rotational kinetic energy is

where I is the moment of inertia. This is just mass times the square of the perpendicular distance to the axis of rotation. In other words, the radius of the propeller or this is equivalent to the length of the rod. ω is the angular velocity. We determine I and ω first.

ω = 573 rev/min * (2π rad/rev) * (1 min/60 s) = 60 rad/s
Then,

-- If acceleration and velocity are in the same direction,
then the object is speeding up.
-- If acceleration and velocity are in opposite directions,
then the object is slowing down.
-- If acceleration is perpendicular to velocity, then the object
is moving on a circular curve at constant speed.
Answer: 172
Explanation: Because yeah
Answer:
1. Leaving trash on the ground and not picking it up.
2. Polluting the lake, if your neighborhood has one.
3. Outside people come and dump their waste to your neighborhood.
Hope this helps!