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mestny [16]
3 years ago
9

What property of a water allows hydrogen bonds to form between two different water molecules?

Biology
1 answer:
garik1379 [7]3 years ago
6 0
D. Size of the oxygen atom compared to the hydrogen atom
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What is the wavelength of a wave with a frequency of 0.4 kHz traveling at 16 m/s?
larisa86 [58]

Answer: 0.04metres

Explanation:

The wavelength of a wave is the distance covered by the wave after one complete cycle. It is measured in metres, and represented by the symbol λ

Recall that Velocity (V) = Frequency F x wavelength λ

V = F λ

Make λ the subject formula

λ = V / F

In this case Frequency = 0.4 kHz

Convert kilohertz to hertz by multiplying 0.4 by 1000 i.e (0.4 x 1000Hz) = 400Hz

Velocity of wave = 16 m/s

So, λ = V / F

λ = 16 m/s / 400Hz

λ = 0.04metres

Thus, the wavelength of a wave is 0.04metres

3 0
3 years ago
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10. A battery-operated alarm
Ksju [112]

Answer:

Chemical Energy!

Explanation:

A Battery is made of chemical energy!

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3 years ago
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Much of the pollution in the environment is a result of
Taya2010 [7]

Answer:

I may be wrong but try A.

8 0
2 years ago
Animals in phylum Arthropoda generally have these characteristics in common.
umka21 [38]

Answer:

Chitinous exoskeleton and segmented bodies​.

Explanation:

Phylum Arthropoda are known as jointed legs species which include crabs, spiders, ants, etc. The important characteristic of Arthropoda is they have a hard chitinous exoskeleton that provides them protection and gives flexibility. These phylum species can survive in both terrestrial and marine habitats. Some characteristics of phylum Arthropoda are given below:

1) They have Chitinous exoskeleton which is hardened.

2) Their digestive tract is present at opposite ends of the body and complete with the mouth and anus.

3) They contain jointed limbs.

4) The body structure of these species is showing bilateral symmetry.

5 0
3 years ago
The introduction describes research into unusual bacteria capable of living in an extremely harsh environment. The introduction
Iteru [2.4K]

Answer:

Basic Research

Explanation:

The initial discovery and analysis of the Lake Vida bacteria allowed them to be classified thereby leading to an understanding of their basic metabolic processes.

Although ,the introductory passage suggested several ways that this could lead to applied research by allowing the development of new products.

Conclusively, the research is a basic in nature because it gave a better understanding of the natural world.

7 0
3 years ago
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