JY CHEN - Ask Anything, Learn Everything. Logo

In Physics / High School | 2025-08-20

An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

Asked by tootsabell1

Answer (3)

Calculate them all. a)16x+5(2x+8)-14=16x+10x+40-14=26+26x b)26-2(3x)=26-6x c)6x-28+10(x+4)-14=6x-28+10x+40-14=16x-2 d)26-6x There are two equivalent ones, which give no real majority...

Answered by Anonymous | 2024-06-10

d . ;

Answered by isakim25 | 2024-06-12

The expression that is not equivalent to the others is C: − 12 x + 26 because it results in a different coefficient for x compared to the other options. Options A, B, and D all simplify to the same value. Thus, C is the correct answer.
;

Answered by Anonymous | 2024-11-16

Related Questions in Physics

[Free] Which best explains what happens when an electron moves from an excited state to the ground state? A. The electron absorbs energy as it moves to a lower energy level. B. The electron absorbs energy as it moves to a higher energy level. C. The electron releases energy as it moves to a higher energy level. D. The electron releases energy as it moves to a lower energy level.

[Free] Particle A has very little mass in comparison to Particle B. Both particles are in the same atom. Which is the best conclusion about Particles A and B? A. They have the same charge. B. They are located in the nucleus together. C. Particle A has a positive charge, and Particle B is neutral. D. Particle A orbits the nucleus, and Particle B is located in the nucleus.

[Free] Light of wavelength [tex]$5 \times 10^{-7} m$[/tex] falls on a sensitive metal plate with photoelectric work function 1.90 eV. Find the kinetic energy of the photoelectrons emitted and the stopping potential. (given [tex]$h =6.62 \times 10^{-34} Js$[/tex])

[Free] Taden has found a table of the atmospheric layers of the Sun. However, he can't make out the names of the layers in the chart. [tex] \begin{tabular}{|l|l|l|l|} \hline & \multicolumn{1}{|c|}{ A } & \multicolumn{1}{c|}{ B } & \multicolumn{1}{c|}{ C } \\ \hline Position & Lowest & Middle & Outermost \\ \hline Thickness & 100 km & 2000 km & Millions of kilometers \\ \hline Temperature & 5,500 & 6,000 to 20,000 & $2,000,000$ \\ \hline \end{tabular} [/tex] What are the names of the Sun's layers described in columns A, B, and C? A. Corona; B: Photosphere; C: Chromosphere B. Core; B: Chromosphere; C: Photosphere C. Chromosphere; B: Corona; C: Core D. Photosphere; B: Chromosphere; C: Corona

[Free] Charges of +5 C and -9 C are at a distance of 1 m from each other. Which diagram represents the force between the two charges?