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3 years ago

Two objects have unlike charges. How would the electric force between the two objects change as they are moved apart?

Physics

2 answers:

Katarina [22]3 years ago

7 0

Answer:

as we move the two charges apart the attraction force between them will decrease in magnitude

Explanation:

As we know that two charges are unlike charges here so the force between them is attraction type of force

This force is given by Coulomb's law which is given as

$F = \frac{kq_1q_2}{r^2}$

so here this force is proportional to the product of two charges and inversely depends on the square of the distance between two charges

So here keeping the same magnitude of the charges we move them to large distance

So here the force between them must have decrease

So as we move the two charges apart the attraction force between them will decrease in magnitude

Karolina [17]3 years ago

4 0

Opposite charges repeal

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As the distance between two objects decreases, the pull of gravity

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Answer: increases

Explanation:

Because the relationship between hand d is counter

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3 years ago

An argon ion laser puts out 5.0 W of continuous power at a wavelength of 532 nm. The diameter of the laser beam is 5.5 mm. If th

stepan [7]

Answer:

Number of photons travel through pin hole= $6.4*10^{17}$

Explanation:

First we will calculate the energy of single photon using below formula:

$E=\frac{h*c}{λ}$

Where :

h is plank's constant with value $6.626*10^{-34} J.s$

c is the speed of light whch is $3*10^{8}$

λ is the wave length = 532nm

$E=\frac{6.6268*10^{-34}* 3*10^{8}}{532nm}$

E= $3.73*10^{-19}$ J

Number of photons emitted per second:

$\frac{5J/s}{1 photon/3.73*10^{-19} }$

Number of photons emitted per second= $1.34*10^{19} photons/s$

$\frac{A-hole}{A-beam}$ = $\frac{\frac{pie*d-hole^2}{4}}{\frac{pie*d-beam^2}{4} }$

Where:

A-hole is area of hole

A-beam is area of beam

d-hole is diameter of hole

d-beam is diameter if beam

$\frac{A-hole}{A-beam}$ = $\frac{d-hole^2}{d-beam^2}$

$\frac{Ahole}{A-beam}$ = $\frac{1.22^2}{5.5^2}$

$\frac{A-hole}{A-beam}$ = $\frac{144}{3025}$

Number of photons travel through pin hole= $1.34*10^{19} *\frac{144}{3025}$

Number of photons travel through pin hole= $6.4*10^{17}$

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3 years ago

Orion is visible on winter evenings in the northern hemisphere but not summer evenings because of_______________.

Bess [88]

Answer:

c. the location of Earth in its orbit.

Explanation:

It is known that the earth orbits the sun once every 365 days, during this time the<u> constellations that are visible in the sky are changing</u>.

This is due to the fact that depending on the position, we have access to different parts of the celestial tomb, that is, the stars and constellations visible from earth.

This is why Orion is visible in winter but not in summer, since in summer it is in a <u>different part of the orbit</u> and with visibility towards different constellations.

the answer is c. the location of Earth in its orbit.

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3 years ago

132 projects in science fair. if 8 projects fit in a row. how many full rows

Umnica [9.8K]

The real answer would be 16.5 but since you want to have a full number it would be 16

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3 years ago

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A physicist would not be consulted on the design for which of the following?

Leona [35]

A physicist would not be consulted on the design for Curtains because there is no scientific laws are used in the making of Curtains.

<h3>What is physicist?</h3>

A physicist is a scientist who specializes in the field of physics. It studies the interactions of matter and energy in the physical universe.

So we can conclude that a physicist would not be consulted on the design for Curtains because there is no scientific laws are used in the making of Curtains.

Learn more about design here: brainly.com/question/2604531

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2 years ago