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3 years ago

Question 10 of 10

Physics

2 answers:

Alex787 [66]3 years ago

5 0

Answer:

It allows only a reduced number of electrons to flow through it

Explanation:

No B is the best answer

Alinara [238K]3 years ago

4 0

it allows only a reduced number of electrons to flow through it.

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Another name for Newton’s 2nd law

monitta

According to Newton’s second law of motion, also know as the law of force and Accelerate , a force upon an object causes it to accelerate according to the formula net force = mass x acceleration

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2 years ago

Three +3.0-μC point charges are at the three corners of a square of side 0.50 m. The last corner is occupied by a −3.0-μC charge

kramer

Answer:

E = 440816.32 N/C

Explanation:

Given data:

Three point charge of charge equal to +3.0 micro coulomb

fourth point charge = - 3.0 micro coulomb

side of square = 0.50 m

$K =1/4 \pi \epsilon_0 = 8.99 \times 10^9$ N.m^2/c^2

Due to having equal charge on center of square, 2 charge produce equal electric field at center and other two also produce electric field at center of same value

So we have

$E_1 + E_3 = 0$

$E =E_2 + E_4$

$E = 2 E_2$

[ $E_2 =\frac{2\times k \times q}{r^2}$

[ $r= \frac{(0.5^2 + 0.5^2)^2}{2} = 0.35 m$ ]

plugging all value

$E = 2 E_2$

$E = 2 E_2 =\frac{2\times k \times q}{r^2}$

$E = \frac{2 \times 8.99 \times 10^93\times 10^{-6}}{0.35^2}$

E = 440816.32 N/C

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2 years ago

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you push a coin across a table the coin stops how does this motion relate to balanced and unbalanced forces

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When you exert a force on the coin, it will accelerate. If you push the coin and it moves at a constant velocity, the friction force must be equal to the force that you are exerting. This is an example of a balanced force. When the net force is greater than 0 N, the is an unbalanced force.

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3 years ago

In beta decay, what is emitted?

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An electron is emitted in both positive and negative beta decay, although the positive one is called positron emission.

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Answer:

v = 4.18 m/s