The blue end of the visible color spectrum has wavelengths, and the red end has wavelengths.

Answer:

Acceleration from gravity is always constant and downward, but the direction and magnitude of velocity change. At the highest point in its trajectory, the ball has zero velocity, and the magnitude of velocity increases again as the ball falls back toward the earth

Explanation:

Answer:

No

Explanation:

becuse it's not even outer space there's acceleration there's no such thing as Zero acceleration speed except if you're not in motion.

The answer;

In a conductor, the electric current can flow freely; in an insulator, it cannot flow freely.

Electrical conductance is the measure of the ease to pass an electric current through a material. Conductors usually have free electron in their bonds that enable them to carry electric current end to end. The higher the free electrons the higher the conddictivity. Insulators on the other and have no free electrons with this regard. Having free electrons in the structure is mainly determined by the electron configuration of the atoms of the element.  

The correct statement is "In a conductor, electric current can flow freely; in an insulator, it cannot flow freely." The correct option is C.

A conductor is a material that allows the flow of electric current due to the presence of free electrons that can move easily. An insulator, on the other hand, is a material that restricts the flow of electric current because its electrons are tightly bound and cannot move freely.

A. Conductors have magnetic fields; insulators do not have magnetic fields.

This statement is not true. Both conductors and insulators can have magnetic fields, depending on the circumstances. The presence or absence of magnetic fields is not a defining characteristic that distinguishes conductors from insulators.

B. Conductors do not have magnetic fields; insulators do have magnetic fields.

This statement is also not true, for the same reasons mentioned above. Both conductors and insulators can have magnetic fields.

D. In a conductor, electric current cannot flow freely; in an insulator, it can flow freely.

This statement is the opposite of the correct option. In a conductor, electric current can flow freely because conductors have a large number of free electrons that are loosely bound to their atoms and are able to move easily in response to an electric field. In contrast, in an insulator, electric current cannot flow freely because insulators have tightly bound electrons that are not free to move, thus hindering the flow of electric current.

Therefore, option C is the correct one as it accurately describes the difference between conductors and insulators based on their ability to allow the flow of electric current.

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Solute.

Hopes this helps you all. Good luck with the rest of the test!

Answer:

14.7 m/s.

Explanation:

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

Time (t) = 1.5 s

Acceleration due to gravity (g) = 9.8 m/s².

Height = 11.025 m

Final velocity (v) = 0 m/s

Initial velocity (u) =?

We, can obtain the initial velocity of the penny as follow:

H = ½(v + u) t

11.025 = ½ (0 + u) × 1.5

11.025 = ½ × u × 1.5

11.025 = u × 0.75

Divide both side by 0.75

u = 11.025/0.75

u = 14.7 m/s

Therefore, the penny was travelling at 14.7 m/s before hitting the ground.