Answer:
Explanation:
Pooh Shiesty, that's my dawg
But Pooh, you know I'm really shiesty
You told all them O.T. ni ggas that you really slide
Tell the truth about your gang, they really dyin'
I got my own fire, don't need security in the club
All that woofin' on the net , I thought you was a thug
They ain't got nowhere to go, I sh0t up everywhere they was
Yeah, you know who took that - from you
Come get it back in blood
Come get it back in blood
Answer:
Power output: W=1426.9MW
Explanation:
The power output of the falls is given mainly by its change in potential energy:
![Q=-P_{tot}=-(P_{2}-P_{1})](https://tex.z-dn.net/?f=Q%3D-P_%7Btot%7D%3D-%28P_%7B2%7D-P_%7B1%7D%29)
The potential energy for any point can be calculated as:
![P=m*g*h](https://tex.z-dn.net/?f=P%3Dm%2Ag%2Ah)
If we consider the base of the falls to be the reference height, at point 2 h=0, so P2=0, and height at point 1 equals 52m:
![Q=P_{1}=m*g*h](https://tex.z-dn.net/?f=Q%3DP_%7B1%7D%3Dm%2Ag%2Ah)
If we replace m with the mass rate M we obtain the rate of change in potential energy over time, so the power generated:
![W=M*g*h=2.8*10^{3}m^{3}/s*1*10^{3}kg/m^{3}*9.8m/s^{2}*52m =1426.9MW](https://tex.z-dn.net/?f=W%3DM%2Ag%2Ah%3D2.8%2A10%5E%7B3%7Dm%5E%7B3%7D%2Fs%2A1%2A10%5E%7B3%7Dkg%2Fm%5E%7B3%7D%2A9.8m%2Fs%5E%7B2%7D%2A52m%20%3D1426.9MW)
Then the separation between the two pennies will be O.354m.
To find the correct answer, we need to know about the electrostatic force of attraction.
<h3>What is the separation between the pennies?</h3>
- We have given with the information's,
![m=3*10^{-3}kg\\n=4*10^{12}\\](https://tex.z-dn.net/?f=m%3D3%2A10%5E%7B-3%7Dkg%5C%5Cn%3D4%2A10%5E%7B12%7D%5C%5C)
- As we know that the charge of one electron is 1.6×10^-19C.Thus, the total charge on the penny will be,
![Q_1=4*10^{12}*1.6*10^{-19}=6.4*10^{-7}C.\\Q_2=-Q_1](https://tex.z-dn.net/?f=Q_1%3D4%2A10%5E%7B12%7D%2A1.6%2A10%5E%7B-19%7D%3D6.4%2A10%5E%7B-7%7DC.%5C%5CQ_2%3D-Q_1)
- We have the expression for electrostatic force of attraction as,
, here given that the electrostatic force equal to the weight of the system.
- We have to find the separation between the pennies.
![r=\sqrt{\frac{kQ_1Q_2}{mg} } =\sqrt{\frac{(6.4*10^{-7})^2}{4*3.14*8.85*10^{-12}*3*10^{-3}*9.8} }\\\\r=0.354m](https://tex.z-dn.net/?f=r%3D%5Csqrt%7B%5Cfrac%7BkQ_1Q_2%7D%7Bmg%7D%20%7D%20%3D%5Csqrt%7B%5Cfrac%7B%286.4%2A10%5E%7B-7%7D%29%5E2%7D%7B4%2A3.14%2A8.85%2A10%5E%7B-12%7D%2A3%2A10%5E%7B-3%7D%2A9.8%7D%20%7D%5C%5C%5C%5Cr%3D0.354m)
Thus, we can conclude that the separation between the pennies is 0.354m.
Learn more about the electrostatic force here:
brainly.com/question/28108740
#SPJ1
Answer:
Answer: simple h. momenta=6.0*3.5. =21.0.
Explanation:
Mac and Keena are experimenting with pulses on a rope. Mac vibrates one end up and down while Keena holds the other end. This creates a pulse which they observe moving from end to end. How does the position of a point on the rope before the start of the pulse compare to its position after the pulse passes? Explain your reasoning.