3 years ago

How much of the earth's animal life exists in the oceans? 40% 60% 80% 99%

Physics

1 answer:

Alexxx [7]3 years ago

7 0

How much of the earth's animal life exists in the oceans?

80% is the answer.

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When a person plucks a guitar string, the number of half wavelengths that fit into the length of the string determines the _____

Vedmedyk [2.9K]

Answer:

Frequency

Explanation:

Each half wavelength has a point of largest amplitude (aka a node). Depending on the wavelength each node oscillates at a certain rate of swings per unit of time. The latter is referred to as frequency and measure in Hertz [Hz].

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3 years ago

Would you buy a pair of shoes from the same company that sold Jack his shoes? Why or why not?

LenKa [72]

Answer:

Maybe

Explanation:

It depends. If he says the shoes sucked than no because they suck-

But if he really liked the shoes and said it was really good than yes

I would buy the shoes

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3 years ago

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What is formed when the rock making up a tectonic plate breaks and moves Select one of the options below as your answer:

dem82 [27]

A. a fault hopes this helps you guys

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3 years ago

The specific heat capacity of water is 4.184 J/(g.˚C). How much thermal energy is required to change the temperature of 700.0g o

worty [1.4K]

Answer:

Should be 145854.24J or:

145.9 KJ

Explanation:

I did the calculations

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3 years ago

Light of wavelength 633 nm from a He-Ne laser passes through a circular aperture and is observed on a screen 4.0 m behind the ap

Verizon [17]

Answer:

The answer is " $1.144 \times 10^{-4} \ m$ ".

Explanation:

$w=\frac{2.44 \lambda L}{D}\\\\D=\frac{2.44 \lambda L}{w}\\\\$

$=\frac{2.44 \times 633 \times 10^{-9}\times 4 }{0.054}\\\\=\frac{6178.08\times 10^{-9}}{0.054}\\\\=1.144 \times 10^{-4} \ m$

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3 years ago