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vekshin1
3 years ago
6

PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!

Mathematics
1 answer:
ryzh [129]3 years ago
5 0

Answer:

A

Step-by-step explanation:

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Which of the following statements correctly uses the distributive property?
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D is the answer I think ?
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Electrons execute 1.4*10^6 revolutions per sec in a magnetic field of flux density
seropon [69]

The charge of the electrons is 8.02 \times 10^{-19} \ C.

The given parameters:

  • <em>Number of revolution of the electron, N = 1.4 x 10⁶ rev per sec</em>
  • <em>Flux density, B = 10⁻⁵ T</em>
  • <em>Mass of electron, m = 9.11 x 10⁻³¹ kg</em>

<em />

The angular speed of the electron is calculated as follows;

\omega = 2\pi N\\\\\omega = 2\pi \ \frac{rad}{1 \ rev} \times 1.4 \times 10^6 \ rev/s\\\\\omega = 8.798 \times 10^6 \ rad/s

The charge of the electrons is calculated as follows;

F_c= m\omega ^2 r\\\\F_{B}= qvB = q\omega r B \\\\F_c = F_B\\\\m\omega ^2 r =  q\omega r B \\\\q = \frac{m\omega ^2 r}{\omega r B} \\\\q = \frac{m \omega }{B} \\\\q = \frac{9.11 \times 10^{-31} \times 8.798 \times 10^6}{10^{-5}} \\\\q = 8.02 \times 10^{-19} \ C

The charge of the electrons is 8.02 \times 10^{-19} \ C.

The complete question here:

Electrons execute 1.4*10^6 revolutions per sec in a magnetic field of flux density 10⁻⁵ T. What will be the value of charge of the electron?

Learn more about magnetic force of electrons here: brainly.com/question/3990732

8 0
2 years ago
Shawn sells 36 vehicles in 4 weeks. Brett sells 56 vehicles in 7 weeks. Who sells more vehicles per week?
azamat

Answer:

shawn

Step-by-step explanation:

hope this helps

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Suma numerelor de forma a4b cu produsul cifrelor 24 este egala cu
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Answer:

Raspuns corect: b)

Step-by-step explanation:

a4b=24, a×4×b=24⇒a×b=6

perechile de numere cu produsul 6 sunt: {1,6}  si {2,3}

a4b in baza 10=100a+40+b

100×1+40+6=146

100×6+40+1=641

100 ×2+40+3=243

100×3+40+2=342

146+641+243+342=1372

Raspuns corect: b)

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3 years ago
Which choices are equivalent to the expression below? Check all that apply.<br> 3sqrt8
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It is C, D and F

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