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Inga [223]
2 years ago
14

Two particles, each of mass m, are a distance d apart. To bring a third particle, with mass 2m, from far away to a resting point

midway between the two particles the work done by an external agent is given by: A. 4Gm2/d B. -4Gm2/d. C. 8Gm2/d2 D. -8Gm2/d2 E. zero ​
Physics
1 answer:
xxMikexx [17]2 years ago
8 0

answer of this example ..

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The Greeks noticed that some stars were larger and moved haphazardly. What were these stars?
Varvara68 [4.7K]

Answer:

i guess it's shooting star

5 0
3 years ago
The critical angle of diamond is 24 degrees. What is its refractive index?
jolli1 [7]

Answer:

2.46

Explanation:

From the question given above, the following data were obtained:

Critical angle (C) = 24 °

Refractive index (n) =?

The refractive index of the diamond can be obtained by using the following formula as illustrated below:

Refractive index (n) = 1 / sine [critical angle (C)]

n = 1/sine C

n = 1 / sine 24 °

n = 1/0.4067

n = 2.46

Thus, the refractive index of the diamond is 2.46

3 0
3 years ago
How does energy travel? Where is the initial source of energy in our solar system? What is the process that gives off energy fro
olasank [31]

Answer:

How does energy travel?

One way the energy can travel is through radiation. An object can radiate energy in the form of electromagnetic waves, for example when a strong light is turned on and you can feel some heat coming from it, or when you walk under the sunlight and you can feel the heat in your skin.

Where is the initial source of energy in our solar system?

In the solar system, the source of energy comes from the Sun, and the sun irradiates that energy to all the nearby objects.

What is the process that gives off energy from the sun called?

The process is called radiation, this is all the energy that comes from the sun in the form of different electromagnetic waves (light in the visible range, UV rays, etc...)

4 0
3 years ago
Contrast electron movement within conductors and insulators.
irina1246 [14]

Answer:

Below

Explanation:

● What makes conductors special is that they have some free electrons that can move.

● An insulator has no free electrons wich explains why current isn't transmitted through it.

8 0
3 years ago
Read 2 more answers
3. Now use the brown knob at the opening of the hose to adjust the angle at which water comes out. When water comes out at an an
Alenkasestr [34]

Answer:

Due to brown knob which controls its angle.

Explanation:

When water comes out at an angle instead of going straight up, water does not shoot as high as before because its speed is controlled by the brown knob in order to throw water in another angle. If we adjust the brown knob present at the opening of hose pipe in a straight angle the water shoot very high because water moves with high pressure and no barrier is present between its way.

4 0
3 years ago
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