a) mass
if u have any doubts or more questions feel free to contact
The answer to this question would be: 1m/s
When you are walking to the north with 2m/s velocity, the stationary object(velocity=0m/s) will look like moving south at 2m/s velocity. That happens because the relative distance between you and the object is reduced by 2m/s in both conditions. In this question, the man seems like have 3m/s velocity. The real velocity should be:
3m/s - 2m/s = 1m/s
Answer:
180.04 nm
Explanation:
λ₀ = maximum wavelength for photoelectric emission in tungsten = 230 x 10⁻⁹ m
E₀ = maximum energy of ejected electron = 1.5 eV = 1.5 x 1.6 x 10⁻¹⁹ J
λ = wavelength of light used = ?
Using conservation of energy
Energy of the light used = Maximum energy required for photoelectric emission + Energy of ejected electron
![\frac{hc}{\lambda }=\frac{hc}{\lambda_{o} } + E_{o}](https://tex.z-dn.net/?f=%5Cfrac%7Bhc%7D%7B%5Clambda%20%7D%3D%5Cfrac%7Bhc%7D%7B%5Clambda_%7Bo%7D%20%7D%20%2B%20E_%7Bo%7D)
![\frac{(6.63 \times 10^{-34})(3 \times 10^{8})}{\lambda }=\frac{(6.63 \times 10^{-34})(3 \times 10^{8})}{230 \times 10^{-9} } + 1.5 \times 1.6 \times 10^{-19}](https://tex.z-dn.net/?f=%5Cfrac%7B%286.63%20%5Ctimes%2010%5E%7B-34%7D%29%283%20%5Ctimes%2010%5E%7B8%7D%29%7D%7B%5Clambda%20%7D%3D%5Cfrac%7B%286.63%20%5Ctimes%2010%5E%7B-34%7D%29%283%20%5Ctimes%2010%5E%7B8%7D%29%7D%7B230%20%5Ctimes%2010%5E%7B-9%7D%20%7D%20%2B%201.5%20%5Ctimes%201.6%20%5Ctimes%2010%5E%7B-19%7D)
λ = 180.04 x 10⁻⁹ m
λ = 180.04 nm
Let the distance form origin of the point on x-axis be x.
then ![(-k*2*q/x)+(k*q/(2R-x))=0](https://tex.z-dn.net/?f=%28-k%2A2%2Aq%2Fx%29%2B%28k%2Aq%2F%282R-x%29%29%3D0)
solving for x,
we get
.
so, the curve is a sphere with center at ![(4R/3,0,0)](https://tex.z-dn.net/?f=%284R%2F3%2C0%2C0%29)
radius
.
To learn more about charge and potential ,visit:
https://brainly.in/question/3525362?
#SPJ4
The independent variable is the time (minutes). The temperature is the dependent variable.