"<span>The number of times a machine multiplies the effort force is the what of the machine"
Work Output is the answer, I believe.</span>
Answer:
Explanation:
For the first case , the expression for electrostatic force can be given by the following .
F = K x 8Q x 2Q / r² where k is a constant .
F = K 16 Q² / r²
When they touch , some charge is neutralized . Net charge remaining
= 8Q - 2 Q = 6 Q
Charge on each sphere = 6Q/2 = 3 Q .
Force between them
F₁ = k 3Q x 3 Q / r² = k 9 Q² / r²
F₁ / F = 9 / 16
F₁ = 9 F / 16 .
Jane's mechanical energy at any time is
where
is the potential energy, while
is the kinetic energy.
Initially, Jane is on the ground, so the altitude is h=0 and the potential energy is zero: U=0. She's running with speed v, so she has kinetic energy only:
Then she grabs the vine, and when she reaches the maximum height h, her speed is zero: v=0, and so the kinetic energy becomes zero: K=0. So now her mechanical energy is just potential energy:
But E must be conserved, so the initial kinetic energy must be equal to the final potential energy:
from which we can find h, the maximum height Jane can reach:
Answer:
D
Explanation:
The atmosphere is made up of constituents not chemically combined unlike the rest of the options...
The atmosphere is made up of O2, N2, etc. and they are not chemically combined, hence the atmosphere is a mixture
Answer:
My favourite university is the University of Machigan.
Explanation:
The motto boldly reads 'Artes, Scientia, Vertia' at University of Machigan which means Arts, Knowledge, and Truth in Latin. Since I was in high school, I always wanted to acquire education/college degree from a university that lived up to its motto. I had a great interest in Social Science and Humanities and always wanted to make a career out of it. The University of Machigan first came across to me while I was reading a monthly magazine at our school library. I read an article called 'Constructing the System: Government and Stakeholders' written by a college student from the University of Machigan. It had interesting developments and insights which really interested me. In fact, it included a very crucial piece of information which was similar to my own political principles.
I did some further research on papers and programs offered at University of Machigan and I felt that it was just the right university for me. I read numerous papers and articles from different departments which were all very academic oriented. Moreover, I started updating myself with the admission criteria at University of Machigan every year and is currently working really hard to achieve admissions there.
I'm still few months away from graduating high school but I can already feel the excitement to go there. I have faith in my academic records and potentials that I would make it there. I'm planning to take up 'Government and Politics' program since that is what I'm most interested at. I hope I would learn and acquire the best knowledge and opportunity from one of the best universities in US or I must say, my favourite university.