Answer:
8.36e2
Explanation:
Use a scientific calculator
Upstream or upriver is a term which is used when you are travelling against the direction of the flow of the river. There are some markers or symbols which are telling us something or how we should pass.
when you are travelling at dusk and you see a buoy with number 4 and a flashing red light you should keep the buoy on the starboard side that is on the right side. buoy with number 5 or any other number will indicate something different.
I think B) would be the best answer, mainly because when clouds become congested and compact like that it typically signifies it's going to rain because of condensation. Seeing how B has a ton of clouds packed together, that would be the most likely for it to indicate a future rain storm.
Answer:
New gravitational force would be: ![4.5\,\,\,10^{-5}\,\,\,N](https://tex.z-dn.net/?f=4.5%5C%2C%5C%2C%5C%2C10%5E%7B-5%7D%5C%2C%5C%2C%5C%2CN)
Explanation:
Recall the general form of the gravitational force between two objects of masses m1 and m2 separated a distance "d":
![F_g=G\,\frac{m1\,*\, m2}{d^2}](https://tex.z-dn.net/?f=F_g%3DG%5C%2C%5Cfrac%7Bm1%5C%2C%2A%5C%2C%20m2%7D%7Bd%5E2%7D)
which for the 2000 kg trucks becomes:
![F_g=G\,\frac{m1\,*\, m2}{d^2} \\3\,\,\,10^{-5}\,N=G\,\frac{2000\,*\, 2000}{d^2}](https://tex.z-dn.net/?f=F_g%3DG%5C%2C%5Cfrac%7Bm1%5C%2C%2A%5C%2C%20m2%7D%7Bd%5E2%7D%20%5C%5C3%5C%2C%5C%2C%5C%2C10%5E%7B-5%7D%5C%2CN%3DG%5C%2C%5Cfrac%7B2000%5C%2C%2A%5C%2C%202000%7D%7Bd%5E2%7D)
when we add 1000 kg of bricks to one truck, we get the following unknown force (x) that we need to find:
![F_g=G\,\frac{m1\,*\, m2}{d^2} \\x=G\,\frac{3000\,*\, 2000}{d^2}](https://tex.z-dn.net/?f=F_g%3DG%5C%2C%5Cfrac%7Bm1%5C%2C%2A%5C%2C%20m2%7D%7Bd%5E2%7D%20%5C%5Cx%3DG%5C%2C%5Cfrac%7B3000%5C%2C%2A%5C%2C%202000%7D%7Bd%5E2%7D)
Now we divide term by term the last equation by the previous one, in order to cancel out common factors to both equation (G, d^2) and get the following equation:
![\frac{x}{3\,\,\,10^{-5}} =\frac{3000}{2000} \\x=\frac{9}{2} \,10^{-5} =4.5\,\,\,10^{-5}\,\,\,N](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B3%5C%2C%5C%2C%5C%2C10%5E%7B-5%7D%7D%20%3D%5Cfrac%7B3000%7D%7B2000%7D%20%5C%5Cx%3D%5Cfrac%7B9%7D%7B2%7D%20%5C%2C10%5E%7B-5%7D%20%3D4.5%5C%2C%5C%2C%5C%2C10%5E%7B-5%7D%5C%2C%5C%2C%5C%2CN)