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1 year ago

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What is the magnitude of a the vertical electric field that will balance the weight of a plastic sphere of mass 2. 1 g that has

been charged to -3. 0 nc? (k = 1/4πε0 = 9. 0 × 109 n ∙ m2/c2)

1 answer:

sladkih [1.3K]1 year ago

5 0

The magnitude of a vertical electric field that will balance the weight of a plastic sphere of mass 2. 1 g that has been charged to -3. 0 NC is 6.86 × $10^{6}$ N/C.

An electric field is the physical field that surrounds electrically charged particles and exerts a force on all other charged particles in the field, either attracting or repelling them. It also refers to the physical field of a system of charged particles.

It is given that,

Mass of sphere, m = 2.1 g =0.0021kg

Charge,q = ₋3nC = ₋ 3 ₓ $10^{-9}$

To balance the weight of a plastic sphere, we must determine the magnitude of the electric field. So,

$ma= qE$

a = g

$E = \frac{mg}{q}$

E = $\frac{0.0021 * 9.8}{-3 * 10^{-9} }$

E = 6860000 N/C

E = 6.86 × $10^{6}$ N/C

Hence, the magnitude of the electric field that balances its weight is 6.86 × $10^{6}$ N/C .

To know more about electric field refer to: brainly.com/question/8971780

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Complete question

A 2700 kg car accelerates from rest under the action of two forces. one is a forward force of 1157 newtons provided by traction between the wheels and the road. the other is a 902 newton resistive force due to various frictional forces. how far must the car travel for its speed to reach 3.6 meters per second? answer in units of meters.

Answer:

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Explanation:

First, we are going to find the acceleration of the car using Newton's second Law:

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Now let's use the Galileo’s kinematic equation

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With Vo te initial velocity that's zero because it started from rest, Vf the final velocity (3.6) and $\varDelta x$ the time took to achieve that velocity, solving (3) for $\varDelta x$ :

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Learn more about heat capacity here :-

brainly.com/question/13499849

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