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3 years ago

What is the distance between two spheres, each with a charge of 2.5 x 10-6 c, when the force between them is 0.50 n?

1 answer:

7 0

In this case, Coulomb's Law applies:

F = 1/(4πε₀) · (Q₁Q₂/r²)

You can solve it for r:

r = √[1/(4πε₀) · (Q₁Q₂/F<span>)]

Plugging in numbers:

r = </span>√[1/(4π·8.85×10⁻¹²) · (2.5×10⁻⁶)²/0.50]
= 0.335m

The correct answer is: the two charges are 0.335m apart.

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Does gravity increase or decrease with greater distance?

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3 years ago

A coin is dropped. What is its displacement after 0.30 s.

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Assuming this coin is on earth and that it wasn’t dropped forcefully:
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3 years ago

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Answer:

I'm pretty sure it's 37.5 joules of energy

Explanation:

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3 years ago

Arocket launches at an angle of 33.6 degrees from the horizontal at a

babymother [125]

Answer:

Y component = 32.37

Explanation:

Given:

Angle of projection of the rocket is, $\theta=33.6$

Initial velocity of the rocket is, $u=58.5$

A vector at an angle $\theta$ with the horizontal can be resolved into mutually perpendicular components; one along the horizontal direction and the other along the vertical direction.

If a vector 'A' makes angle $\theta$ with the horizontal, then the horizontal and vertical components are given as:

$A_x=A\cos \theta(\textrm{Horizontal or X component})\\A_y=A\sin \theta(\textrm{Vertical or Y component})$

Here, as the velocity is a vector quantity and makes an angle of 33.6 with the horizontal, its Y component is given as:

$u_y=u\sin \theta$

Plug in the given values and solve for $u_y$ . This gives,

$u_y=(58.5)(\sin 33.6)\\u_y=58.5\times 0.55339\\u_y=32.373\approx32.37(\textrm{Rounded to two decimal places})$

Therefore, the Y component of initial velocity is 32.37.

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3 years ago

In the modern model of the atoms over 99.9% of the atoms is made up of:

QveST [7]

In the modern model of the atoms over 99.9℅ of the atom is made up of empty space

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3 years ago

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