They are called fixed and movable pulleys
Answer:
The Reynolds number determines what type of regime is laminar or turbulent in a flow pattern.
Explanation:
The Reynolds number determines what type of regime is laminar or turbulent in a flow pattern.
In the laminar regime R_D <2300 the flow is ordered and has an envelope predicted by the expressions
In the turbulent regime R_D> 2900 the flow has vortices and is extremely irregular
in the intermediate values it is in a transition regime
Answer:
The total kinetic energy of both particles is ![2.43\times10^{-13}](https://tex.z-dn.net/?f=2.43%5Ctimes10%5E%7B-13%7D)
Explanation:
Given that,
Kinetic energy of nucleus![K.E= 1.24\times10^{-13}\ J](https://tex.z-dn.net/?f=K.E%3D%201.24%5Ctimes10%5E%7B-13%7D%5C%20J)
Kinetic energy of proton ![K.E= 2.47\times10^{-13}\ J](https://tex.z-dn.net/?f=K.E%3D%202.47%5Ctimes10%5E%7B-13%7D%5C%20J)
Radius of proton ![r= 0.9\times10^{-15}\ m](https://tex.z-dn.net/?f=r%3D%200.9%5Ctimes10%5E%7B-15%7D%5C%20m)
We need to calculate the final potential energy
Using formula of final potential energy
![U=\dfrac{kq^2}{r}](https://tex.z-dn.net/?f=U%3D%5Cdfrac%7Bkq%5E2%7D%7Br%7D)
Put the value into the formula
![U_{f}=\dfrac{9\times10^{9}\times(1.6\times10^{-19})^2}{2\times0.9\times10^{-15}}](https://tex.z-dn.net/?f=U_%7Bf%7D%3D%5Cdfrac%7B9%5Ctimes10%5E%7B9%7D%5Ctimes%281.6%5Ctimes10%5E%7B-19%7D%29%5E2%7D%7B2%5Ctimes0.9%5Ctimes10%5E%7B-15%7D%7D)
![U_{f}=1.28\times10^{-13}\ J](https://tex.z-dn.net/?f=U_%7Bf%7D%3D1.28%5Ctimes10%5E%7B-13%7D%5C%20J)
We need to calculate the initial energy of both the particles
Using formula of energy
![E_{i}=(K.E_{n}+K.E_{p})+U_{i}](https://tex.z-dn.net/?f=E_%7Bi%7D%3D%28K.E_%7Bn%7D%2BK.E_%7Bp%7D%29%2BU_%7Bi%7D)
![E_{i}=1.24\times10^{-13}+2.47\times10^{-13}+0](https://tex.z-dn.net/?f=E_%7Bi%7D%3D1.24%5Ctimes10%5E%7B-13%7D%2B2.47%5Ctimes10%5E%7B-13%7D%2B0)
![E_{i}=3.71\times10^{-13}\ J](https://tex.z-dn.net/?f=E_%7Bi%7D%3D3.71%5Ctimes10%5E%7B-13%7D%5C%20J)
We need to calculate the total kinetic energy of both particles
Using conservation of energy
![E_{i}=E_{f}](https://tex.z-dn.net/?f=%20E_%7Bi%7D%3DE_%7Bf%7D)
![E_{i}=K.E_{f}+U_{f}](https://tex.z-dn.net/?f=E_%7Bi%7D%3DK.E_%7Bf%7D%2BU_%7Bf%7D)
![3.71\times10^{-13}=K.E_{f}+1.28\times10^{-13}](https://tex.z-dn.net/?f=3.71%5Ctimes10%5E%7B-13%7D%3DK.E_%7Bf%7D%2B1.28%5Ctimes10%5E%7B-13%7D)
![K.E_{f}=3.71\times10^{-13}-1.28\times10^{-13}](https://tex.z-dn.net/?f=K.E_%7Bf%7D%3D3.71%5Ctimes10%5E%7B-13%7D-1.28%5Ctimes10%5E%7B-13%7D)
![K.E_{f}=2.43\times10^{-13}](https://tex.z-dn.net/?f=K.E_%7Bf%7D%3D2.43%5Ctimes10%5E%7B-13%7D)
Hence, The total kinetic energy of both particles is ![2.43\times10^{-13}](https://tex.z-dn.net/?f=2.43%5Ctimes10%5E%7B-13%7D)
<span>TRUE
The force that opposes the movement of an object through water is called drag. This is a type of frictional force. This force normally depends on the density and the viscosity of the fluid in question. The liquid which has more density and more viscosity or stickiness will produce a greater amount of drag force on an object than a fluid that is less dense and less viscous in nature. River water normally has less drag than that of sea water. </span><span> <span>
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