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2 years ago

7

two charged particles repel each other with a force of 10N when they are 30cm apart if they are repel each other by a force of 4

N what would be the separation distance

1 answer:

KonstantinChe [14]2 years ago

5 0

Answer:

The pattern between electrostatic force and distance can be further characterized as an inverse square relationship

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A point charge of 4 µC is located at the center of a sphere with a radius of 25 cm. Find the electric flux through the surface o

givi [52]

Answer:

Ф = 4.5176x10⁵ N . m² / C

Explanation:

In this case, we need to use two expressions in order to calculate the electric flux of the sphere.

First the Electric flux is calculated using this expression:

Ф = E * A (1)

Where:

E: Electric field

A: Area of the sphere

To get the electric field E, we use this expression:

E = K * q / r² (2)

If we replace (2) into (1) we have the following:

Ф = K * q * A / r² (3)

Finally, we need to know the expression to get the area of a sphere which is the following:

A = 4πr² (4)

Replacing into (3):}

Ф = K * Q * 4πr² / r² discarting r²:

Ф = K * Q * 4π (5)

Now, all we need to do is replace the given values and solve for the electric flux of the sphere:

Ф = 8.98755x10⁹ * 4x10⁻⁶ * 4 * π

<h2>Ф = 4.5176x10⁵ N . m² / C</h2>

Hope this helps

5 0

3 years ago

Three solid, uniform, cylindrical flywheels, each of mass 65.0 kg and radius 1.47 m, rotate independently around a common axis t

Mkey [24]

Answer:

the angular momentum is 1015.52 kg m²/s

Explanation:

given data

mass of each flywheel, m = 65 kg

radius of flywheel, r = 1.47 m

ω1 = 8.94 rad/s

ω2 = - 3.42 rad/s

to find out

magnitude of the net angular momentum

solution

we get here Moment of inertia that is express as

I = 0.5 m r² .................1

put here value and we get

I = 0.5 × 65 × 1.47 × 1.47

I = 70.23 kg m²

and

now we get here Angular momentum that is express as

L = I × ω ...........................2

and Net angular momentum will be

L = 2 × I x ω1 - I × ω2

put here value and we get

L = 2 × 70.23 × 8.94 - 70.23 × 3.42

L = 1015.52 kg m²/s

so

the angular momentum is 1015.52 kg m²/s

3 0

4 years ago

A wave created by a certain source travels from medium 1 into another medium 2. It is noticed that its velocity is faster in med

Finger [1]

Do you have a chart or something that goes with it?

4 0

3 years ago

A tugboat pulls a ship with a constant net horizontal force of 5.00 x 10 to the 3 power n and causes the ships to move through a

Mashutka [201]

Work is force times distance. So here we have
W=(5000N)x(3000m)=1.5x10^7J
Or 15MJ (megajoules)

5 0

3 years ago

A 6.8 KG object moves with a velocity of 8 M/S what’s it's kinetic energy?

FromTheMoon [43]

Answer:

Explanation:

KE = ½mv² = ½(6.8)8² = 217.6 J

round as appropriate because that result is way too much precision for the inputs provided. Arguably should be 200 J based on the single significant digit of the velocity.

8 0

3 years ago