Answer:
E=7453.99 V/m
Explanation:
The electric field on the charged is given by
E= Kqx/(r^2 +x^2)^3/2
Where;
K= constant of Coulomb's law
q= magnitude of charge= 30.0×10^-9 C
r= radius of the rings= 5 cm or 0.05m
x= distance between the rings = 18cm = 0.18 m
Substituting values;
E= 9.0×10^9 × 30.0×10^-9 × 0.18 / [(0.05^2 + (0.18)^2]^3/2
E= 48.6/(2.5×10^-3 + 0.0324)^3/2
E= 48.6/(0.0025 + 0.0324)^3/2
E= 48.6/6.52×10^-3
E=7453.99 V/m
Metals, Metalloids, and Nonmetals These elements can be classified as metals, nonmetals but metalloids ,Metals are good conductors of heat and electricity, and are malleable they can be hammered into sheets and (ductile- they can be drawn into wire.)
Answer:
Explanation:
Increases. The force of gravity is distance dependent. Therefore, a smaller 'r' value will result in a larger force. Net force is proportional to the acceleration, so the planet will increase its speed.
Considering the unknown resistence as R and using the Ohm's First Law, we have:
The equivalent resistence is given by the resistor series with the lamp resistence.
![R_{eq}=R+10 \\ R_{eq}=14+10 \\ \boxed {R_{eq}=24-Ohm}](https://tex.z-dn.net/?f=R_%7Beq%7D%3DR%2B10%20%5C%5C%20R_%7Beq%7D%3D14%2B10%20%5C%5C%20%5Cboxed%20%7BR_%7Beq%7D%3D24-Ohm%7D)
If you notice any mistake in my english, please let me know, because i am not native.
Answer:
0.434 m
Explanation:
We are given that
Mass per unit length=![\mu=\frac{m}{l}=2.4 g/m=2.4\times 10^{-3} kg/m](https://tex.z-dn.net/?f=%5Cmu%3D%5Cfrac%7Bm%7D%7Bl%7D%3D2.4%20g%2Fm%3D2.4%5Ctimes%2010%5E%7B-3%7D%20kg%2Fm)
1 kg=1000 g
Tension=350 N
Fundamental frequency=f=440 Hz
We have to find the length you should make it.
We know that
![l=\frac{1}{2f}\sqrt{\frac{T}{\mu}}](https://tex.z-dn.net/?f=l%3D%5Cfrac%7B1%7D%7B2f%7D%5Csqrt%7B%5Cfrac%7BT%7D%7B%5Cmu%7D%7D)
Using the formula
![l=\frac{1}{2\times 440}\times\sqrt{\frac{350}{2.4\times 10^{-3}}}](https://tex.z-dn.net/?f=l%3D%5Cfrac%7B1%7D%7B2%5Ctimes%20440%7D%5Ctimes%5Csqrt%7B%5Cfrac%7B350%7D%7B2.4%5Ctimes%2010%5E%7B-3%7D%7D%7D)
l=0.434 m
Hence, you should make it 0.434 m long.