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PtichkaEL [24]
3 years ago
9

The doppler effect is the change in observed frequency due to

Physics
2 answers:
Serhud [2]3 years ago
7 0
D. the motion of the source or observer
Art [367]3 years ago
3 0

I believe the answer is D, im not 100% sure though.

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Why should we not use nuclear energy
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Answer:

Barriers to and risks associated with an increasing use of nuclear energy include operational risks and the associated safety concerns, uranium mining risks, financial and regulatory risks, unresolved waste management issues, nuclear weapons proliferation concerns, and adverse public opinion.

Explanation:

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What factors affect the chemical properties of seawater
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An ocean's salinity is affected by water and air temperature, the volume of water that flows into it, its age and the chemical composition of surrounding geological formations.<span> Because the effect of these factors varies over the area of an ocean, different levels are found within the ocean</span>
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Kristen is running a half marathon. By her tenth minute of running, her breathing rate has increased from her resting rate.
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Ratling [72]

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8 0
3 years ago
A mass of 0.30kg is attached to a spring and is set into motion with a period of 0.24s. what is the spring constant of the sprin
Alenkinab [10]

Answer:

The spring constant of the spring is 205.42 N/m.

Explanation:

Springs have their own natural "spring constants" that define how stiff they are. The letter k is used for the spring constant, and it has the units N/m.

                                                         k = -F/x

The period of a spring-mass system is proportional to the square root of the mass and inversely proportional to the square root of the spring constant.

Given:

mass of object in SHM = m = 0.30 kg

Time period of the spring mass system = 0.24s

Spring constant = k ?

Finding 'k' using Time period 'T':

We know that  

6 0
3 years ago
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