Answer:
(a) q = 2.357 x 10⁻⁵ C
(b) Φ = 2.66 x 10⁶ N.m²/C
Explanation:
Given;
diameter of the sphere, d = 1.1 m
radius of the sphere, r = 1.1 / 2 = 0.55 m
surface charge density, σ = 6.2 µC/m²
(a) Net charge on the sphere
q = 4πr²σ
where;
4πr² is surface area of the sphere
q is the net charge on the sphere
σ is the surface charge density
q = 4π(0.55)²(6.2 x 10⁻⁶)
q = 2.357 x 10⁻⁵ C
(b) the total electric flux leaving the surface of the sphere
Φ = q / ε
where;
Φ is the total electric flux leaving the surface of the sphere
ε is the permittivity of free space
Φ = (2.357 x 10⁻⁵) / (8.85 x 10⁻¹²)
Φ = 2.66 x 10⁶ N.m²/C
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.
1). From the frame of reference of a passenger on the airplane looking out of his window, the tree appears to be moving, at roughly 300 miles per hour toward the left of the picture.
2). The SI unit best suited to measuring the height of a building is the meter.
3). 'Displacement' is the straight-line distance and direction from the start-point to the end-point, regardless of the path that was followed to get there.
The ball started out in the child's hand, and it ended up 2 meters away from her in the direction of the wall. So the displacement of the ball from the beginning to the end of the story is: 2 meters toward the wall.
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Answer:</h3>
Input work
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Explanation:</h3>
Concept being tested: Efficiency of machines
Therefore we need to know what is the efficiency of a machine
- Efficiency of a machine is the ratio of work output of machine to the work input expressed as a percentage.
Efficiency = (Work output ÷ Work input) × 100%
- Therefore, if the work input is equal to the work output then the efficiency of the machine will be 100%.
- Most machines are not 100% efficient due to loss of energy in form of heat due to friction of the moving parts of the machine.