michellerosas
10.02.2020 •
Physics
In the microscopic view of electrical conduction in a copper wire, electrons are accelerated by an electric field and then collide with metal atoms after traveling about 3.4×10−8m. If an electron begins from rest and is accelerated by a field of 0.070 N/C, what is its speed when it collides with a metal atom?
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Ответ:
Explanation:
1. Obtain the net force acting on the electron
The electric force equals the magnetic field times the charge of the particle:
The charge on the electron is .
2. Calculate the acceleration of the electron
Mass of an electron: 9.109 × 10⁻³¹ kg3. Calculate the speed
Uniformly accelerated motion:
Ответ:
the answer is c i need 20 characters ignore this
Explanation:
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