Note that by the law of inertia, it's the nature of objects to continually be in motion. For something to be still, there has to be a presence of a force.
They mention "no outside forces" so you know that a kid isn't kicking the object or a train is hitting it, or anything like that. Still, there are internal forces working, and I drew it out for you :) Hope this helps!
The mass of the person would be 66 kg on both Earth and the Moon.
The distance between the two charges is ![0.3 m](https://tex.z-dn.net/?f=0.3%20m)
Explanation:
The electrostatic force between two charged objects is given by Coulomb's law:
![F=k\frac{q_1 q_2}{r^2}](https://tex.z-dn.net/?f=F%3Dk%5Cfrac%7Bq_1%20q_2%7D%7Br%5E2%7D)
where:
is the Coulomb's constant
are the charges of the two objects
r is the separation between the two charges
In this problem, we are given the following:
![q_1 = 8\cdot 10^{-5} C](https://tex.z-dn.net/?f=q_1%20%3D%208%5Ccdot%2010%5E%7B-5%7D%20C)
![q_2 = 3\cdot 10^{-5} C](https://tex.z-dn.net/?f=q_2%20%3D%203%5Ccdot%2010%5E%7B-5%7D%20C)
![F=2.4\cdot 10^2 N](https://tex.z-dn.net/?f=F%3D2.4%5Ccdot%2010%5E2%20N)
Therefore, we can rearrange the equation to solve for r, the distance between the two charges:
![r=\sqrt{\frac{kq_1 q_2}{F}}=\sqrt{\frac{(8.99\cdot 10^9)(8\cdot 10^{-5})(3\cdot 10^{-5})}{2.4\cdot 10^2}}=0.3 m](https://tex.z-dn.net/?f=r%3D%5Csqrt%7B%5Cfrac%7Bkq_1%20q_2%7D%7BF%7D%7D%3D%5Csqrt%7B%5Cfrac%7B%288.99%5Ccdot%2010%5E9%29%288%5Ccdot%2010%5E%7B-5%7D%29%283%5Ccdot%2010%5E%7B-5%7D%29%7D%7B2.4%5Ccdot%2010%5E2%7D%7D%3D0.3%20m)
Learn more about electrostatic force:
brainly.com/question/8960054
brainly.com/question/4273177
#LearnwithBrainly
Answer:
100 W
Explanation:
The power can be defined as energy change / time taken
Or
Energy used/time taken
So in this case you get,
Power = 2500/25 = 100 W
Washington defeated the Hessians on Christmas of 1776, so false. But why is this in the Physics section?