Answer:
960 Watt
Explanation:
From the question,
Electric power = Voltage squared/Resistance
P = V²/R ..................... Equation 1
Where P = power, V = Voltage, R = Resistance
Given: V = 120 volts, R = 15 ohms.
Substitute these values into equation 1
P = 120²/15
P = 14400/15
P = 960 Watt
Answer:
A. 3.4 m
Explanation:
Given the following data;
Force = 56.7N
Workdone = 195J
To find the distance
Workdone is given by the formula;
Making "distance" the subject of formula, we have;
![Distance = \frac {workdone}{force}](https://tex.z-dn.net/?f=%20Distance%20%3D%20%5Cfrac%20%7Bworkdone%7D%7Bforce%7D%20)
Substituting into the equation, we have;
![Distance = \frac {195}{56.7}](https://tex.z-dn.net/?f=%20Distance%20%3D%20%5Cfrac%20%7B195%7D%7B56.7%7D%20)
Distance = 3.4 meters.
The strongest of the natural forces is Strong Nuclear, followed by Electromagnetic, then Weak Nuclear and lastly Gravitational.
So from weakest to strongest: gravitational --> weak nuclear --> electromagnetic --> strong nuclear
Answer C)
The speed of the proton is ![9.79*10^5m/s](https://tex.z-dn.net/?f=9.79%2A10%5E5m%2Fs)
Data;
- potential difference (A) = 3500V
- potential difference (B) = -1500V
<h3>Velocity of The Proton</h3>
The work done to move through a potential velocity 'v' is q
The potential difference 'v' is the difference between A and B
![V = 3500-(-1500) = 5000v](https://tex.z-dn.net/?f=V%20%3D%203500-%28-1500%29%20%3D%205000v)
But the work is converted into kinetic energy of proton.
![q_pV = \frac{1}{2}m_pV^2\\](https://tex.z-dn.net/?f=q_pV%20%3D%20%5Cfrac%7B1%7D%7B2%7Dm_pV%5E2%5C%5C)
Let's substitute the values and solve for the velocity
![(1.6*10^-^1^9)*(5000)=\frac{1}{2}(1.67*10^-^2^7)v^2\\v^2 = \frac{2* 1.6*10^-^1^9 * 5000}{1.67*10^-^2^7}\\ v = \sqrt{9.58*10^1^1} \\v = 9.79 * 10^5m/s](https://tex.z-dn.net/?f=%281.6%2A10%5E-%5E1%5E9%29%2A%285000%29%3D%5Cfrac%7B1%7D%7B2%7D%281.67%2A10%5E-%5E2%5E7%29v%5E2%5C%5Cv%5E2%20%3D%20%5Cfrac%7B2%2A%201.6%2A10%5E-%5E1%5E9%20%2A%205000%7D%7B1.67%2A10%5E-%5E2%5E7%7D%5C%5C%20v%20%3D%20%5Csqrt%7B9.58%2A10%5E1%5E1%7D%20%5C%5Cv%20%3D%209.79%20%2A%2010%5E5m%2Fs)
The speed of the proton is ![9.79*10^5m/s](https://tex.z-dn.net/?f=9.79%2A10%5E5m%2Fs)
Learn more about work done on an electron here;
brainly.com/question/13673636
The branch of science which deals with celestial objects, space, and the physical universe as a whole.
Online definition so if you’re using it for school work I recommend re-wording!