Answer:
no se porque xD jajjakajajjajajajjaj
Answer:
T=Lnsin![\alpha](https://tex.z-dn.net/?f=%5Calpha)
Please check the attached
Explanation:
The torque can simply be calculated by multiplying the length of the rod by the perpendicular force n as shown in the attached figure.
Note that sin90=1
T=Lsin
(nsin90)
T=Lsin
xn
T=Lnsin![\alpha](https://tex.z-dn.net/?f=%5Calpha)
Answer:
you change the direction of the magnetic field.
Explanation:
Because the magnetic field created by the electric current in the wire is changing directions around the wire, it will repel both poles of the magnet by bending away from the wire.
Answer:
![1.554\times 10^{32}\ \text{kg}](https://tex.z-dn.net/?f=1.554%5Ctimes%2010%5E%7B32%7D%5C%20%5Ctext%7Bkg%7D)
Explanation:
M = Mass of each star
T = Time period = 15.5 days
v = Orbital velocity = 230 km/s
G = Gravitational constant = ![6.674\times 10^{-11}\ \text{Nm}^2/\text{kg}^2](https://tex.z-dn.net/?f=6.674%5Ctimes%2010%5E%7B-11%7D%5C%20%5Ctext%7BNm%7D%5E2%2F%5Ctext%7Bkg%7D%5E2)
Radius of orbit is given by
![R=\dfrac{vT}{2\pi}](https://tex.z-dn.net/?f=R%3D%5Cdfrac%7BvT%7D%7B2%5Cpi%7D)
We have the relation
![\dfrac{Mv^2}{R}=\dfrac{GM^2}{(2R)^2}\\\Rightarrow M=\dfrac{4Rv^2}{G}\\\Rightarrow M=\dfrac{4\dfrac{vT}{2\pi}v^2}{G}\\\Rightarrow M=\dfrac{2v^3T}{\pi G}\\\Rightarrow M=\dfrac{2\times 230000^3\times 15.5\times 24\times 60\times 60}{\pi\times 6.674\times 10^{-11}}\\\Rightarrow M=1.554\times 10^{32}\ \text{kg}](https://tex.z-dn.net/?f=%5Cdfrac%7BMv%5E2%7D%7BR%7D%3D%5Cdfrac%7BGM%5E2%7D%7B%282R%29%5E2%7D%5C%5C%5CRightarrow%20M%3D%5Cdfrac%7B4Rv%5E2%7D%7BG%7D%5C%5C%5CRightarrow%20M%3D%5Cdfrac%7B4%5Cdfrac%7BvT%7D%7B2%5Cpi%7Dv%5E2%7D%7BG%7D%5C%5C%5CRightarrow%20M%3D%5Cdfrac%7B2v%5E3T%7D%7B%5Cpi%20G%7D%5C%5C%5CRightarrow%20M%3D%5Cdfrac%7B2%5Ctimes%20230000%5E3%5Ctimes%2015.5%5Ctimes%2024%5Ctimes%2060%5Ctimes%2060%7D%7B%5Cpi%5Ctimes%206.674%5Ctimes%2010%5E%7B-11%7D%7D%5C%5C%5CRightarrow%20M%3D1.554%5Ctimes%2010%5E%7B32%7D%5C%20%5Ctext%7Bkg%7D)
The mass of each star is ![1.554\times 10^{32}\ \text{kg}](https://tex.z-dn.net/?f=1.554%5Ctimes%2010%5E%7B32%7D%5C%20%5Ctext%7Bkg%7D)
Answer:
Jesseca wanted to create a material that reflected most of the light that fell on it.
Explanation: The Graphite was the material in the passage that had reflected most of the light.