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lorasvet [3.4K]
3 years ago
12

What is the frequency of light with a wavelength of 7.9 x 10^-9 m? ( the speed of light is 3.00 x 10^8)

Physics
1 answer:
nlexa [21]3 years ago
3 0
Using the formula v=f times lambada
then v=the speed of light.
and f=what’s we’re looking for
and lambada=the wavelength.

so then you sub what you have (v and lambada) in the formula.
then multiply the frequency(f) by the given wavelength and then solve for f

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Answer:

d) The 2 athletes reach the same height, because the athletes run with the same speed.

Explanation:

In the whole process , kinetic energy is converted into potential energy .

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h = v² / 2g

In this expression we see that height attained does not depend upon mass of the object . At the same time it also makes it clear that it depends upon velocity . As the velocity in both the cases are same , height attained by both of them will be same. Hence option d ) is correct.

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Answer:

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Explanation:

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  (9 s)(19.5 m/s) = 175.5 m

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Answer:

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WARRIOR [948]

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A science teacher gives a student four beakers, each with a different liquid inside. The table provided shows the volume of each
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The dependent variable in this experiment is the mass of each liquid.

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Density also depend on the mass of a substance and density can easily be identified by mass if all the substance in question have the same volume.

In this experiment, all the liquid have the same volume. Since the student want to list them in order from the least dense to the most dense, how dense the liquid are will be a function of the differences in liquid mass.

The least dense liquid will float. That is, will be at the top most of the container. While the most dense will be at the bottom of the container.

Therefore, the dependent variable in this experiment is the mass of each liquid

Learn more here : brainly.com/question/24885287

7 0
2 years ago
Read 2 more answers
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