Similarity : inverse square law for strength of force compared with distance.
Answer:
Tying a 4 weight pound on a string is a potential energy because it is at rest but cutting it and letting it fall experiences a kinetic energy because it will be in motion.
Answer:
it will travel 69 m long consuming. it is totally wrong
Answer:
1.41 m/s, 7.85 rad/s
Explanation:
We can start by calculating the tangential velocity, which is given by:

where
r = 18 cm = 0.18 m is the radius of the circumference
T = 0.8 s is the period
Substituting,

Now we can also calculate the angular velocity, which is given by:

where again,
T = 0.8 s is the period
Substituting,

I think you forgot to give the choices along with the question. I am answering the question based on my knowledge and research. You would increase mechanical advantage by <span>making the blade longer from the cutting edge. I hope that this is the answer that has actually come to your desired help.</span>