2. Wheel and axle
3.fulcrum
6.wheel and axle (I think) hope this helps!
Range is highest -lowest
56-7
49
The range is 49
Hope that helps :)
Solution :
The electric field between two plates is given by
![$E = \frac{q}{\varepsilon_0 A}$](https://tex.z-dn.net/?f=%24E%20%3D%20%5Cfrac%7Bq%7D%7B%5Cvarepsilon_0%20A%7D%24)
where
permitivity of free space
q = charge
A = surface area
It is given that :
the radius of the circular plates , r = 30 mm
the current, I = 0.43 mA
Therefore, Magnetic field can be found by
![$B \times 2 \pi r = \mu_0 I_{(enclosed)}$](https://tex.z-dn.net/?f=%24B%20%5Ctimes%202%20%5Cpi%20r%20%3D%20%5Cmu_0%20I_%7B%28enclosed%29%7D%24)
![$\Rightarrow B = \frac{\mu_0}{2 \pi r} \times (0.43 \ mA) \times \left(\frac{13 \ mm}{30 \ mm}\right)^2$](https://tex.z-dn.net/?f=%24%5CRightarrow%20B%20%3D%20%5Cfrac%7B%5Cmu_0%7D%7B2%20%5Cpi%20r%7D%20%5Ctimes%20%280.43%20%5C%20mA%29%20%5Ctimes%20%5Cleft%28%5Cfrac%7B13%20%5C%20mm%7D%7B30%20%5C%20mm%7D%5Cright%29%5E2%24)
![$\Rightarrow B = \frac{2 \times 10^{-7}}{13 \times 10^{-3}} \times 0.43 \times 10^{-3} \times \left(\frac{13 }{30 }\right)^2$](https://tex.z-dn.net/?f=%24%5CRightarrow%20B%20%3D%20%5Cfrac%7B2%20%5Ctimes%2010%5E%7B-7%7D%7D%7B13%20%5Ctimes%2010%5E%7B-3%7D%7D%20%5Ctimes%200.43%20%5Ctimes%2010%5E%7B-3%7D%20%5Ctimes%20%5Cleft%28%5Cfrac%7B13%20%7D%7B30%20%7D%5Cright%29%5E2%24)
![$\Rightarrow B = 1.2 \times 10^{-9} \ T$](https://tex.z-dn.net/?f=%24%5CRightarrow%20B%20%3D%201.2%20%5Ctimes%2010%5E%7B-9%7D%20%5C%20T%24)
Answer: The mean value <u>= 9.85m/s².</u>
Explanation:
Mean = ![\dfrac{\text{Sum of n observations}}{n}](https://tex.z-dn.net/?f=%5Cdfrac%7B%5Ctext%7BSum%20of%20n%20observations%7D%7D%7Bn%7D)
The given measurements the acceleration of gravity (units of m/s²): 10.1, 9.87, 9.76, 9.91, 9.75, 9.88, 9.69, 9.83, and 9.90.
Number of measurements =9
Sum of measurements = 88.69
Mean = ![\dfrac{88.69}{9}=9.85444444\approx9.85](https://tex.z-dn.net/?f=%5Cdfrac%7B88.69%7D%7B9%7D%3D9.85444444%5Capprox9.85)
Hence, the mean value<u> = 9.85m/s².</u>
Answer:
its 10
Explanation:
if you search it up you will see