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AnnyKZ [126]
3 years ago
14

Can an object be in motion and not in motion at the same time? Explain.

Physics
1 answer:
kolezko [41]3 years ago
5 0
It could rotate while not advancing distance
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Which is not a step of the scientific method?
Dahasolnce [82]
The six steps of the scientific are:
1. State the question
2. Conduct research
3. Create a hypothesis
4. Perform the experiment
5. Analyze the data
6. Conclusion

So D. would be the correct answer, even though communicating the results could possibly be a step if it's required.
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Astronomers discover a bright X-ray source in the Milky Way. They see no counterpart in the optical bands, but it has another st
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Answer:

a. a black hole

Explanation:

X-ray emission from the central degrees of the Milky Way Bright X-ray emission traces the coherent edge brightened shell-like feature, dubbed the northern chimney, located north of Sgr A* and characterized by a diameter of about 160 pc. On the opposite side, the southern chimney appears as a bright linear feature. Bright X-ray emission is observed at high latitude

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3 years ago
A certain type of laser emits light that has a frequency of 4.2 × 1014 Hz. The light, however, occurs as a series of short pulse
bogdanovich [222]

Explanation:

It is given that,

Frequency of the laser light, f=4.2\times 10^{14}\ Hz

Time, t=3.2\times 10^{-11}\ s

(a) Let \lambda is the wavelength of this light. It can be calculated as :

\lambda=\dfrac{c}{f}

\lambda=\dfrac{3\times 10^8}{4.2\times 10^{14}}

\lambda=7.14\times 10^{-7}\ m

or

\lambda=714\ nm

(b) Let n is the number of the wavelengths in one pulse. It can be calculated as :

n=f\times t

n=4.2\times 10^{14}\times 3.2\times 10^{-11}

n = 13440

Hence, this is the required solution.

8 0
3 years ago
Write the energy conversion when climbing a ladder​
Volgvan
A child climbing a ladder is transforming kinetic energy into potential energy.
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Type O negative blood is considered the universal red blood cell donor because it _____.
marissa [1.9K]

Answer:

Honestly i think the answer is B

Explanation:

4 0
3 years ago
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