Physics: When the first periodic table of the elements was published, the elements were arranged by atomic mass. although several elements seemed out of order, later discoveries showed the order to be correct. which event most likely the development of the periodic table? scientists changed the atomic masses to better fit the pattern. scientists refused to consider other ways to organize the elements. new technology was developed that modified the masses. new information changed the understanding of the

When the first periodic table of the elements was

Ответ:

GreenHerbz206

09.01.2022

"New information changed the understanding of the atom’s structure"

Whenever a scientific observation is made, it has to be verified and its interpretation over time may change due to understanding of the specific phenomenon. Scientists do not alter the observation in any way; instead, explanations are presented to fit the observations as best as possible.

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Ответ:

kana13

18.02.2023

Physics

(a) $\epsilon=0.036V+4.119*10^{-4}\frac{T}{s^4}m^{-2}t^3$

(b) I = 1.65*10^-4 A

Explanation:

(a) To find the induced emf in the coil you use the following formula:

$\epsilon=N|\frac{d\Phi_B}{dt}|$ (1)

N: turns = 560

ФB: magnetic flux = AB

A: area = π r^2 = π (0.0415m)^2 = 5.41*10^-3 m^2

you replace the expression for the magnetic flux in the equation (1). Next, you derivative the magnetic field respect to time. Finally, you replace t=5.00s:

$\epsilon=(560)|\frac{d(AB)}{dt}|=(560)(5.41*10^{-3}m^2)|\frac{dB}{dt}|\\\\B=( 1.20*10^{-2} T/s )t+( 3.40*10^{-5} T/s^4 )t^4\\\\\frac{dB}{dt}=(1.20*10^{-2}+1.36*10^{-4}T/s^4)t^3\frac{T}{s}\\\\\epsilon=(560)(5.41*10^{-3}m^2)(1.20*10^{-2}+(1.36*10^{-4}T/s^4)t^3)\\\\\epsilon=(3.029m^2)(1.20*10^{-2}\frac{T}{s}+(1.36*10^{-4}T/s^4)t^3)\\\\\epsilon=0.036V+4.119*10^{-4}\frac{T}{s^4}t^3$

(b) The current is given by:

$I=\frac{\epsilon}{R}=\frac{0.036V+4.119*10^{-4}T/s^4(5.00s)^3m^{-2}}{530\Omega}\\\\I=1.65*10^{-4}A$

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