Answer:
An interaction of one object with another object results in a force between the two objects. Thus, at-least two objects must interact for a force to come into play.
The frequency of a beam of light does not change as it passes from a medium to another, only its wavelength and speed are affected. The experimental speed of light in air is:
3 * 10^8 m/s
Therefore, the frequency of this beam of light is:
v = fλ; where v is speed, f is frequency, and λ is the wavelength. The frequency thus is:
3×10⁸ / (670 × 10⁻⁹) = 4.48 × 10¹⁴ Hz
The frequency will remain the same in the solid medium
The speed will then become:
4.48 × 10¹⁴ × 420 × 10⁻⁹ = 1.88 × 10⁸ meters per second
Answer:
16 Watts
Explanation:
P = VI, where V is the voltage and I is the current (of the lightbulb)
V = 8 volts, I = 2 amps
P = 8 * 2 = 16 Watts
A & C
Explanation:
The combination of the earth's weak gravity and its closeness to the sun does not allow it to hold hydrogen and helium gases in its atmosphere. Its relative closeness to the sun means it is hot enough such that the helium and hydrogen molecules would have high kinetic energy. Remember that gravity acts strongly on larger masses, therefore it would require very strong gravity to have an influence on lighter gas molecules like hydrogen and helium let alone when they have a high kinetic energy. This means these molecules can easily escape the earth’s atmosphere into space.
Planets that are larger (meaning they have a stronger gravity) and farther from the sun (meaning these molecules won't have a very high kinetic energy) are able to hold these lighter gases in their atmosphere. Examples of such planets are Jupiter.
Learn More:
For more on gravity check out;
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""A series of activities that have proven to be effective in successfully implementing safe"" This statement defines the safe Implementation roadmap.
<h3>What is safe implementation roadmap ?</h3>
The Safe Implementation Roadmap outlines the stages," that an organization may take to execute safe in a systematic, dependable, and effective manner.
While the implementation of safe may vary depending on the situation, the Implementation roadmap provides insight into a fairly prevalent pattern.
The safe implementation roadmap is made up of an overview graphic and a 12-article series that detail a strategy and a sequence of actions that have been proved to be successful in implementing Safe.
Hence,the given statement defines the safe Implementation roadmap.
To learn more about the safe implementation roadmap refer:
brainly.com/question/24735309
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