Answer:
Potential difference across resistor will be 87.66 volt
Explanation:
We have given number of electrons ![n=4.1\times 10^{21}](https://tex.z-dn.net/?f=n%3D4.1%5Ctimes%2010%5E%7B21%7D)
Charge on one electron ![e=1.6\times 10^{-19}C](https://tex.z-dn.net/?f=e%3D1.6%5Ctimes%2010%5E%7B-19%7DC)
So total charge ![Q=4.1\times 10^{21}\times 1.6\times 10^{-19}=656C](https://tex.z-dn.net/?f=Q%3D4.1%5Ctimes%2010%5E%7B21%7D%5Ctimes%201.6%5Ctimes%2010%5E%7B-19%7D%3D656C)
Time is given t = 5 min
1 minute = 60 sec
So 5 minute = 5×60 = 300 sec
So current ![i=\frac{Q}{t}=\frac{656}{300}=2.1866A](https://tex.z-dn.net/?f=i%3D%5Cfrac%7BQ%7D%7Bt%7D%3D%5Cfrac%7B656%7D%7B300%7D%3D2.1866A)
Resistance is given R = 40 ohm
Sp from ohm's law potential difference across resistor v = iR = 2.1866×40 = 87.466 volt
Zero. Dipoles do not have an electric field as it is cancelled out by the dipole it's self. However, the general rule for the propagation of an electric field is the inverse square law.
k is simply a constant of the value 9.9 x
Answer: The answer is A) 49 N(Newtons).
Answer:
science is the intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.
Explanation:
Answer:
a. 900 J
b. 0.383
Explanation:
According to the question, the given data is as follows
Horizontal force = 150 N
Packing crate = 40.0 kg
Distance = 6.00 m
Based on the above information
a. The work done by the 150-N force is
![W = F x = \mu N x = \mu\ m\ g\ x](https://tex.z-dn.net/?f=W%20%3D%20F%20x%20%3D%20%5Cmu%20N%20x%20%3D%20%5Cmu%5C%20m%5C%20g%5C%20x)
![W = 150 \times 6](https://tex.z-dn.net/?f=W%20%3D%20150%20%5Ctimes%206)
= 900 J
b. Now the coefficient of kinetic friction between the crate and surface is
![\mu = \frac {F}{m\timesg}](https://tex.z-dn.net/?f=%5Cmu%20%3D%20%5Cfrac%20%7BF%7D%7Bm%5Ctimesg%7D)
![= \frac{150}{40\times 9.8}](https://tex.z-dn.net/?f=%3D%20%5Cfrac%7B150%7D%7B40%5Ctimes%209.8%7D)
= .383
We simply applied the above formulas so that each one part could calculate