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Sergio039 [100]
3 years ago
8

What is necessary condition for the conservation of momentum?

Physics
1 answer:
MrRa [10]3 years ago
6 0
N<span>o net external force acts on the system </span>
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Which of these statements best describes the impact of ocean thermal power and current power on the environment?
zzz [600]

Answer:

A. Current power may decrease the fish population.

Explanation:

The statement that best describes the impact of ocean thermal power and current power on the environment is that current power may decrease the fish population.

The environment is made up of living and non-living components that co-exist and interact with one another.

  • Harnessing current power from ocean movement will seriously affect the fish population.
  • Most fishes are not sedentary. They move and glide through the water.
  • When current power causes a change in the environment of the fish.
  • This will definitely affect the normal condition prevalent in the body of water.
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3 years ago
When using water displacement to measure the volume of an irregularly shaped solid, like a rock, which of the following would be
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Three cubic centimeters
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A ray of light traveling in water (n = 1.33) is incident at the flat surface of a block of glass (n = 1.60). If the incident ray
mel-nik [20]

Answer:

45.19^{\circ}

Explanation:

We are given that

n_1=1.33

n_2=1.6

\theta_1=58.6^{\circ}

We have to find the angle of refraction.

By Snell's law

n_1sin\theta_1=n_2sin\theta_2

Substitute the values

1.33sin58.6=1.6sin\theta_2

sin\theta_2=\frac{1.33sin58.6}{1.6}

sin\theta_2=0.7095

\theta_2=sin^{-1}(0.7095)=45.19^{\circ}

Hence, the angle mad by refracted ray in to the glass with normal=45.19^{\circ}

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3 years ago
Photorefractive keratectomy (PRK) is a laser-based surgery process that corrects near- and farsightedness by removing part of th
Kobotan [32]

Answer:c

Explanation: i think it is c

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How long does it take the students’ kettle to come to the boil if 3 kg of ice at 0 °C is put in it? The latent heat of fusion of
Alborosie

Answer:

Explanation:

111.333

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3 years ago
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