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3 years ago

According to coulombs law, how is the electric force related to the distance between two charges?

Physics

1 answer:

lorasvet [3.4K]3 years ago

4 0

Answer:

Explanation:

From the formula of coulombs law F = Kq1q2/square of r, we can say the electric force is indirectly related to square of r

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The energy levels of a particular quantum object are -11.7 eV, -4.2 eV, and -3.3 eV. If a collection of these objects is bombard

gogolik [260]

To solve this problem it is necessary to apply an energy balance equation in each of the states to assess what their respective relationship is.

By definition the energy balance is simply given by the change between the two states:

$|\Delta E_{ij}| = |E_i-E_j|$

Our states are given by

$E_1 = -11.7eV$

$E_2 = -4.2eV$

$E_3 = -3.3eV$

In this way the energy balance for the states would be given by,

$|\Delta E_{12}| = |E_1-E_2|\\|\Delta E_{12}| = |-11.7-(-4.2)|\\|\Delta E_{12}| = 7.5eV\\$

$|\Delta E_{13}| = |E_1-E_3|\\|\Delta E_{13}| = |-11.7-(-3.3)|\\|\Delta E_{13}| = 8.4eV$

$|\Delta E_{23}| = |E_2-E_3|\\|\Delta E_{23}| = |-4.2-(-3.3)|\\|\Delta E_{23}| = 0.9eV$

Therefore the states of energy would be

Lowest : 0.9eV

Middle :7.5eV

Highest: 8.4eV

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4 years ago

Free body diagram definition <br>in physics

kirill115 [55]

Answer:

In physics and engineering, a free body diagram (force diagram, or FBD) is a graphical illustration used to visualize the applied forces, moments, and resulting reactions on a body in a given condition.

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3 years ago

The student concluded that the current in the LDR is inversely proportional to the potential difference across the LDR. Explain

Andrej [43]

Answer:

The graph shows direct proportion because it is a straight line

through the origin.

Explanation:

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4 years ago

An object is moving diagonally (down and to the left). You want it to stop moving. In what direction (or

vekshin1

A. Up and to the right
B. Put it in the opposite direction so it won’t go left

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3 years ago

The end of a garden hose is enclosed in a mesh sphere of radius 4 cm. If the hose delivers five liters per minute, how much wate

lana [24]

Answer

0.001339 liter

Explanation:

It is given that radius = 4 cm =0.04 m

volume of sphere $V=\frac{4}{3}\pi R^{3}$

$V=\frac{4}{3}\times 3.14\times (4\times 10^{-2})^{3}=2.674\times 10^{-4}$

It is given that hose delivers five liters per minute

So the water flows through sphere per minute is given by 5×2.674× $10^{-4}$ =0.001339 liters

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3 years ago