Answer:
![-8.0 \times 10 ^{-19 }\ C,\ -3.2 \times 10 ^{-19 }\ C, -4.8 \times 10 ^{-19 }\ C](https://tex.z-dn.net/?f=-8.0%20%5Ctimes%2010%20%5E%7B-19%20%7D%5C%20C%2C%5C%20-3.2%20%5Ctimes%2010%20%5E%7B-19%20%7D%5C%20C%2C%20-4.8%20%5Ctimes%2010%20%5E%7B-19%20%7D%5C%20C)
Explanation:
<u>Charge of an Electron</u>
Since Robert Millikan determined the charge of a single electron is
![q_e=-1.6\cdot 10^{-19}\ C](https://tex.z-dn.net/?f=q_e%3D-1.6%5Ccdot%2010%5E%7B-19%7D%5C%20C)
Every possible charged particle must have a charge that is an exact multiple of that elemental charge. For example, if a particle has 5 electrons in excess, thus its charge is ![5\times -1.6\cdot 10^{-19}\ C=-8 \cdot 10^{-19}\ C](https://tex.z-dn.net/?f=5%5Ctimes%20-1.6%5Ccdot%2010%5E%7B-19%7D%5C%20C%3D-8%20%5Ccdot%2010%5E%7B-19%7D%5C%20C)
Let's test the possible charges listed in the question:
. We have just found it's a possible charge of a particle
. Since 3.2 is an exact multiple of 1.6, this is also a possible charge of the oil droplets
this is not a possible charge for an oil droplet since it's smaller than the charge of the electron, the smallest unit of charge
cannot be a possible charge for an oil droplet because they are not exact multiples of 1.6
Finally, the charge
is four times the charge of the electron, so it is a possible value for the charge of an oil droplet
Summarizing, the following are the possible values for the charge of an oil droplet:
![-8.0 \times 10 ^{-19 }\ C,\ -3.2 \times 10 ^{-19 }\ C, -4.8 \times 10 ^{-19 }\ C](https://tex.z-dn.net/?f=-8.0%20%5Ctimes%2010%20%5E%7B-19%20%7D%5C%20C%2C%5C%20-3.2%20%5Ctimes%2010%20%5E%7B-19%20%7D%5C%20C%2C%20-4.8%20%5Ctimes%2010%20%5E%7B-19%20%7D%5C%20C)
Answer:0kgm/s
Explanation:
Momentum before collision=momentum after collision
Since the momentum of the two blocks have positive sign, it means they are moving in thesame direction
Therefore we use the formula
Momentum (A)+momentum (B)=Momentum (A)+momentum (B)
25+35=60+momentum (B)
60=60+momentum (B)
Momentum (B)=60-60
Momentum (B)=0kgm/s
You cant skip nothing. All the lessons are important! Sorry about you free time :/
<span>When light passes through a prism it is separated into its component colors</span>
No, since their gravity is powerful enough to keep them together even while the universe expands as a whole. Space is not expanding within clusters of galaxies.
<h3>What is a galaxy?</h3>
A galaxy is a massive clump of gas, dust, and billions of stars and their solar systems bound together by gravity.
No, since their gravity is powerful enough to keep them together even while the universe expands as an entire.
Hence,space is not expanding within clusters of galaxies.
To learn more about the galaxy, refer to the link;
brainly.com/question/2905713
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