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GuDViN [60]
4 years ago
8

One element of the circulatory system is the __________.

Chemistry
2 answers:
Verizon [17]4 years ago
6 0

Answer:

heart

Explanation:

IrinaK [193]4 years ago
4 0
The answer is heart

good luck!
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TRIPLE POINTS!!! I NEED HELP!!! PLEASE EXPLAIN TOO!!! What is the energy of a quantum of light with a frequency of 4.31 x 1014 1
Lelechka [254]

Answer:

The answer is

2.86 \times  {10}^{ - 19}  \: J

Explanation:

The energy of a quantum of light can be found by using the formula

<h3>E = hf</h3>

where

E is the energy

f is the frequency

h is the Planck's constant which is

6.626 × 10-³⁴ Js

From the question

f = 4.31 × 10¹⁴ Hz

We have

E = 4.31 × 10¹⁴ × 6.626 × 10-³⁴

We have the final answer as

2.86 \times  {10}^{ - 19}  \: J

Hope this helps you

3 0
3 years ago
A detail that distinguishes a solid from a liquid is-------?
svetoff [14.1K]
A solid is hard and the molecules are packed together, a liquid can move around freely because the molecules aren't as packed together :)
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3 years ago
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Evidence that best supports the theory of biological evolution was obtained from the
Alisiya [41]
The homologous structures and the analogous structures of different species.
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3 years ago
Question 2.3
SVETLANKA909090 [29]

Answer:

Your answer is :- C [OH-] = 10 x 10-7 mol dm-3

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At the heart of the stars, nuclear fusion merges _____ together in the nucleus of atoms to create new elements?
Goshia [24]

Answer:

lighter atoms especially hydrogen

Explanation:

At the heart of the stars, nuclear fusion merges lighter atoms especially hydrogen together in the nucleus of atoms to create new elements.

During nuclear fusion small atomic nuclei combines to form larger ones with the release of a large amount of energy.

The energy released provides the needed temperature for another set of hydrogen atoms to fuse. This process is in turn yields another set of helium atom which releases a lot of energy.

A chain reaction progresses which leads to the formation of new elements.

3 0
3 years ago
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