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motikmotik
4 years ago
9

Which statement is true about the formation of bonds?

Physics
2 answers:
marin [14]4 years ago
8 0
D. There is an overall release of energy when bonds form.
IgorC [24]4 years ago
4 0

Answer:

The correct answer for APEX is D. There is an overall release of energy when bonds form.

Explanation:

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What evidence do we have that the halo population of stars are older than other stars in the galaxy?
weeeeeb [17]

Answer:

a.They have a smaller proportion of heavy elements.

Explanation:

As a  star grows old , its metal content becomes low . Our sun is Population I star which means it is very new . Its metal content is 1.4 % . By the term metal we mean any element heavier than helium . Population II stars are older than population I stars . They will have lesser content of metal . Population III are oldest star group which have metal content as less as .015 % .

7 0
3 years ago
When driving at night with other traffic, you should not look directly at oncoming headlights. Instead?
12345 [234]
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watch the right edge of your lane and check the position of oncoming cars. </span>
5 0
3 years ago
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Describe the relationship of attractive forces between molecules
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<span>Describe the relationship of attractive forces between molecules and the ability of a solvent to dissolve a substance. Solvents can dissolve a substance only if the attraction of the solvent molecules is greater than the attraction between the molecules of the substance.</span>
4 0
3 years ago
Two men pull on a 31-kg box with forces 8.3 N and 6.6 N in opposite directions.
kykrilka [37]

The resultant acceleration of the box is 0.055 m/s² in the direction of the greater force.

The given parameters:

  • Mass of the box, m = 31 kg
  • Two applied forces, = 8.3 N and 6.6 N

<h3>Resultant force on the box</h3>

The resultant force on the box is calculated as follows;

F_{net} = F_1 - F_2\\\\F_{net} = 8.3 \ N - \ 6.6 \ N\\\\F_{net} = 1.7 \ N

<h3>Resultant acceleration of the box</h3>

The resultant acceleration of the box is calculated as follows;

F = ma\\\\a = \frac{F}{m} \\\\a = \frac{1.7}{31} \\\\a = 0.055  \ m/s^2

Thus, the resultant acceleration of the box is 0.055 m/s² in the direction of the greater force.

Learn more about resultant acceleration here: brainly.com/question/26216029

4 0
2 years ago
2. An object with moment of inertia ????1 = 9.7 x 10−4 kg ∙ m2 rotates at a speed of 3.0 rev/s. A 20 g mass with moment of inert
svetoff [14.1K]

Answer:

2.85 rad/s

Explanation:

5 cm = 0.05 m

20 g = 0.02 kg

When dropping the 2nd object at a distance of 0.05 m from the center of mass, its corrected moments of inertia is:

I_2 = 1.32\times10^{−6} + 0.02 * 0.05^2 = 0.513\times10^{-4} kgm^2

So the total moment of inertia of the system of 2 objects after the drop is:

I = I_1 + I_2 = 9.7\times10^{-4} + 0.513\times10^{-4} = 0.0010213 kgm^2

From here we can apply the law of angular momentum conservation to calculate the post angular speed

\omega_1 I_1 = \omega_2 I

\omega_2 = \omega_1 \frac{I_1}{I} = 3 \frac{9.7\times10^{-4}}{0.0010213} = 2.85 rad/s

6 0
3 years ago
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