Please help me answer this. Thank you ♡´･ᴗ･`♡

Explanation:

The universal wave equation states that the velocity of a wave is the product of its wavelength and its frequency.

Mathematically speaking,

∣

∣

∣

∣

¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

a

a

v

=

λ

f

a

a

∣

∣

−−−−−−−−−−−

where

−−−−−

:

v

=

velocity of wave (metres per second)

λ

=

wavelength (metres)

f

=

frequency (hertz or reciprocal seconds)

Step 1

Convert the given wavelength from centimetres into metres.

3.0

i

c

m

×

m

100

i

c

m

=

3.0

c

m

×

m

100

c

m

=

0.030

i

m

Step 2

Rearrange for frequency,

f

, in the universal wave equation.

v

=

λ

f

Becomes,

f

=

v

λ

Step 3

Substitute your known values to solve for the frequency of the pulse.

f

=

1500

i

m

s

0.030

i

m

f

=

50000

i

H

z

Rounding off the value to two significant figures,

f

=

∣

∣

∣

∣

¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

a

a

5.0

×

10

4

i

H

z

a

a

∣

∣

−−−−−−−−−−−−−−−−

The frequency of the pulse is 4.6×[tex]10^4[/tex], when the wavelength of the sonar pulse is 3.2cm. and has a speed of 1,500 m/s in water.

The sonar may be defined as a device that is used to find the distance, direction, and speed of underwater objects like water hills, valleys, icebergs, submarines, sunken ships, etc.

The universal wave equation states that the velocity of a wave is equal to the products of its wavelength and frequency.

   v = λf

∴ f = v/λ

1500/0.032 = 46,875 Hz.

f = 4.6×[tex]10^4[/tex] Hz.

Therefore, the frequency of the pulse is 4.6×[tex]10^4[/tex], when the wavelength of the sonar pulse is 3.2cm. and has a speed of 1,500 m/s in water.

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Answer:

Speed: Tissue fell slowest(lowest mass and large surface area acts as parachute)

Plastic spoon fell pretty quick

And the stainless steel spoon fell the fastest because of the weight and small mass

The tissue is the only item out of the 3 that makes 0 noise when it hits a surface.

Answer: Conditioned

Explanation:

the cat realizes that the carrier will cause her pain so her brain will associate pain with carrier and then will be scared of it

Answer:D

Explanation:

Answer:

‼️A) 1/4 25% Chance‼️

Explanation:

If she gets the X chromosome with the hemophilia gene, she will have hemophilia. A man who has hemophilia and a woman who is a carrier have: a 25% (one in four) chance of having a son with hemophilia.

Answer:

50%

Explanation:

the sex linked trait is to the x chromosome but only one. that means the female would pass 50% the allele 50% of the time

Answer:

I believe it's A, commencualism.

Explanation:

Because it means that one type of animal pairs itself with another to provide a service or perk, while the other maybe offers protection or something similar, improving the species.

I hope it's correct tho, sorry if it's not. ♥

Answer:

mold is right answer go for it quickly

Answer:

A. Mold

Explanation:

Molds preserve a three-dimensional impression of remains buried in sediment.

Answer:

Saprolegnia, type of water mold

ok so this to inform you that i have to get b points thank you

Answer:

The Alps arose as a result of the collision of the African and European tectonic plates, in which the western part of the Tethys Ocean, that was formerly in between these continents, disappeared.

Answer:

The mountains were formed over tens of millions of years as the African and Eurasian tectonic plates collided. Extreme shortening caused by the event resulted in marine sedimentary rocks rising by thrusting and folding into high mountain peaks such as Mont Blanc and the Matterhorn.

Explanation:

Answer:

A Taxon is a rank or group in a biological classification into which taxonomists classify related organisms. A clade is a group of organisms that are monophyletic and is composed of a common ancestor and all its lineal Descendants

Explanation:

The other guy didn't add a Copy and Paste thing, so here.

Answer:

d. Solar panels are expensive.

Explanation:

All the other things are not right.

Answer:

C

Explanation:

Have a nice day

Answer:

option (c) protein is your answer ans..

Complete question:

3. Hitchhiker’s thumb (H) is dominant to no hitchhiker’s thumb (h). A woman who does not have hitchhiker’s thumb marries a man who is heterozygous for hitchhiker’s thumb. What is the probable genotypic ratio of their children? What is the probable genotypic of their children?

Answer and Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

Answer:

its GAC UAU give me some likes lol

Explanation:

Answer:

its (C)

Explanation:

Answer:

I would say A but im not 100% sure

Explanation:

The parallax method uses the angle to measure the distance of the objects in space. When the method is used 6 months after then, the star further away changes its position the most. Thus, option A is correct.

The parallax method determines the displacement of the object in the space when viewed from the line of sight and is determined by the angle of the inclination of the shift.

It is used to measure the distance of the planet to the nearby stars and is measured again after six months. It is the change of the position of the object or the celestial body with respect to the observer's position.

Therefore, the star located farthest will change its position the most.

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Answer:

Sugar molecules. What molecules create sugar you ask 12 atoms of carbon, 22 atoms of hydrogen, and 11 atoms of oxygen

Explanation:

Plants convert energy from sunlight into sugar in a process called photosynthesis. Photosynthesis uses energy from light to convert water and carbon dioxide molecules into glucose (sugar molecule) and oxygen.

Answer:

C Nikola

Explanation:

7.5 ibs is the most average and ideal weight for newborns.

Rosalind is the newborn who the lowest chance of having health problems. Thus, the correct option is A.

Health problems may be defined as a situation of disease or medical ailment or an environmental condition that poses the threat of disease or medical ailment practically.

Rosalind weighs 6lbs which is equal to 2.72 kilograms. The most ideal and normal weight of newborns should be ranging in between 2.5 to 3 kilograms.

Therefore, Rosalind is the newborn who the lowest chance of having health problems. Thus, the correct option is A.

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Answer:

Scientific inquiry is different from the scientific method.

Explanation:

The scientific method follows a linear step-by-step process in order to answer a question, while scientific inquiry does not follow a linear step-by-step process. Scientific inquiry helps you think outside the box to understand the natural world.

Answer:

A

Explanation:

homologous chromosomes seperate during indeendent assortment. Its not D or C, since independent assortment occurs with seperation and B makes less sense

The part of the body that contains enzymes that break down starch into simple sugars is the mouth (option A).

Digestion is the process whereby ingested food is converted into substances that can be utilized by the body.

Digestion involves the breakdown of large molecules of chemical substances in food into simpler molecules that can be absorbed.

Enzymes are responsible for the chemical degradation of food substances. A specific enzyme in charge of breaking down starch is called amylase and it is present in the saliva of the mouth.

Therefore, the part of the body that contains enzymes that break down starch into simple sugars is the mouth

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Answer:

Attached to each sugar is one of four bases: adenine (A), cytosine (C), guanine (G), or thymine (T). The two strands are held together by bonds between the bases, adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.

Answer:

Double Helix

Attached to each sugar is one of four bases: adenine (A), cytosine (C), guanine (G), or thymine (T). The two strands are held together by bonds between the bases, adenine forming a base pair with thymine, and cytosine forming a base pair with guanine..

Answer:

B: Humans, chimpanzees, and other primates share a common ancestor.

Explanation:

According to the theory of evolution, organisms of a particular species change in their characteristics over several generations because of the process of natural selection. The idea of evolution derives from the fact that all species are related and gradually change over time.

Species which are somewhat related all share a common ancestor. Hence, humans, chimpanzees, and other primates all share a common ancestor.

The chemical reaction for cellular respiration will be C6H12O6 + 6 O2 → 6 CO2 + 6 H2O, the correct option is C.

Cellular respiration is a succession of chemical reactions that break down glucose to produce ATP, which can then be used as energy to power a variety of reactions throughout the body.

Cellular respiration consists of three major steps: glycolysis, the citric acid cycle, and oxidative phosphorylation.

It is mirror image of photosynthesis, its chemical reaction is:

[tex]C_{6} H_{12}O_{6} + 6 O_{2}--------- > 6CO_{2}+6O_{2}[/tex]

Thus, the correct option is C.

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Answer:

Density independent is the correct answer

The type of limiting factor that causes this scenario are density-independent factors, which is Option B, because they affect populations regardless of their size or density.

Density-independent factors are environmental factors that affect populations regardless of their size or density. These factors can include natural disasters such as forest fires, floods, hurricanes, droughts, and other extreme weather events. Other examples of density-independent factors include habitat destruction, pollution, and climate change. In the scenario described, a forest fire destroyed an area, which can lead to the decline of both tree and bird populations. The fire could kill the trees and destroy their habitats, making it difficult for the surviving trees to grow or reproduce.

Hence, the type of limiting factor that causes this scenario are density-independent factors, which is Option B, because they affect populations regardless of their size or density.

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