Choose the words or phrases that correctly complete the sentence. Two boys are holding onto the ends of a long piece of string, and they move it up and down to make a wave. They begin to move the string faster and faster. When they move the string, the energy (remains the same / increases / decreases) and the frequency (decreases / increases / remains the same). Group of answer choices increases, increases remains the same, remains the same decreases, decreases increases, decreases

Answers

Answer 1

energy increases frequency decreases :)

Answer 2

When two boys move the string, the energy increases, and the frequency increases. Thus, the correct option for this question is A.

How are energy and frequency of waves related to one another?

The energy and frequency of waves are always directly related to one another. It means that when energy increases, frequency increases. When energy decreases, the frequency decreases.

Now, according to the context of this question, when two boys begin to move the string faster and faster, the energy gradually increases with an increase in frequency as they both are directly related to one another.

Therefore, when two boys move the string, the energy increases, and the frequency increases. Thus, the correct option for this question is A.

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Related Questions

Role of Lipids and Carbohydrates - Type Lipid or Carbohydrate behind each question. 16. Provide long term energy storage. 17. Provide insulation and protection. 18. Short term energy supply 19. Composes cellulose in trees and plants. 20. Main component of cell membranes 21. Provide a waterproof coating on leaves and feathers. 22. Composes chitin exoskeleton of insects. 23. Act as chemical messengers in the body.

Answers

Answer:

16. Carbohydrates  

17. Lipids

18. Carbohydrates

19. Carbohydrates

20. Lipids

21. Lipids

22. Carbohydrates

23. Lipids

Explanation:

Carbohydrates are organic molecules composed of carbon, hydrogen and oxygen. Carbohydrates can be classified into three types: monosaccharides (e.g. glucose), disaccharides (e.g., lactose), and polysaccharides (e.g., starch). Cellulose is a carbohydrate where many glucose rings chain together, while chitin is a polysaccharide consisting of chains of modified glucose molecules.

Lipids represent a diverse group of organic molecules that include, among others, fats, waxes, oils, hormones, etc. Lipids play a role by insulating (and protecting) the body. For example, there is a layer of fats beneath the skin which enables to maintain body temperature relatively constant. In animals, lipids constitute about 50% of the mass of cell membranes. These membrane lipids are mainly phospholipids, glycolipids and cholesterol. There are hormones that derive from lipids such as steroid hormones, which derive from cholesterol. Some examples of steroid hormones are testosterone, estrogen and cortisol.

To increase memory, the author recommends that a
person
А
get fresh air and exercise.
B
spend time indoors at the library.
С
sleep six hours every night.
D
memorize homework assignments.

Answers

Answer:

Option B and D Best Support The Statement

Explanation:

To Increase yourself in knowledge one must go to the library and of course memorize their homeworks

ANSWER PLEASEEEEE TYYY

Answers

Answer:

A-D

Explanation:

They both lie on the same ring.

I hope this helps! Happy learning, friend :)


6.which of the following is NOT a main part of the cell?
A cell membrane
B. cytoplasm
C. nucleus
D. ribosome

Answers

Explanation:

Its answer is ribosome

How many membrane layers cover the nucleus?

Answers

Answer:

2 membrane layers cover up the nucleus

Answer:

two lipid bilayer

Explanation:

the nucleus membrane is made up of two lipid bilayer

HELP ME PLS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Compare the data shown in the table. What reasonable conclusion can be made from the information given?

Answers

I’m not sure but I think that and answer is C...hope that helped

Which characteristic of life is the car missing that leads someone to conclude it is not alive? Please answer in complete sentences

Answers

Answer:

Explanation:

a car does not have the ability to reproduce, or maintain homeostasis. Unlike all living things

A car does not follow the rules dictated by the cell theory and so forth. a) A car cannot reproduce. b) A car does not have any cells. c) A car does not maintain homeostasis. d) A car lacks genetic material.

Vhy did the color of the peppered moth change?
A.The moths' life cycle changed,
B.The environment changed
C.The amount of variation in the moth population changed
D.The number of individual moths in the population changed,

Answers

Answer:

the environment changed

Explanation:

The evolution of the peppered moth is an evolutionary instance of directional colour change in the moth population as a consequence of air pollution during the Industrial Revolution. ... Later, when pollution was reduced, the light-coloured form again predominated.

Answer:

B.The environment changed

Explanation:

Which of the following structures is at the same level organization as the mitochondrion in a plant cell

Answers

Answer:

Any other cell organelles would be at the same level of organization as a mitochondria.

The concentration of urea in g per 100 cm3 in part A is 0.03, and in part C is 2.00.
How many times more concentrated is the urea in part C compared with part A?

Answers

0.03/2.00 its very easy

What describes G and why they face the watery inside and outside of the cell

Answers

Answer:

Because they are hydrophilic

Explanation:

The cell membrane is made up of a phospholipid bilayer. The phospholipid bilayer is made up of an arrangement of phosphate heads, which are (attracted to water) hydrophilic, and fatty acid tails, which are hydrophobic. (repelled by water).

Because they are attracted to water, the phosphate heads face the outside of the cell, where the water is

You're eating a bowl of
fruit but you're starting to
feel full.

Answers

Answer:because it has low energy density an lots of fiber it helps you feel full  longer

Explanation: fruit recommended

today's midterms and I just want to say good luck to you all. (we're doomed)

Answers

Answer:

lol, good luck dude ur gonna need it.

A mother and daughter are both talented pianist. Give an inherited trait and learned trait would lead to this similarity

Answers

Answer:

long fingers or slim hands i think would make sense for inherited trait and learned trait would be the mother teaching the daughter how to play piano

Guys help!!!!!!!!!! Pleaseeee it’s urgent

Answers

Answer:

The answer is b

Explanation:

Cell that has a nucleus but not a wall would best be described as

Answers

Answer:

organell

Explanation:

Answer:

Animal cell

Explanation:

Animal cells do not have a cell wall but have a nucleus

where do cells store waste

Answers

Answer:

Vacuoles

Explanation:

Which of the following adaptations enables deciduous trees to produce more food?
a.
thick bark
b.
stretching toward the sun
c.
leaf loss
d.
color change


im pretty sure its b, but im just making sure

Answers

Answer:

yes you are correct the answer would be "B"

Explanation:

i think it’s b stretching toward the sun

What impact does an increase in temperature have on the rate of a chemical reaction?

A) Temperature has no effect on the rate of a chemical reaction

B) It decreases the rate of the reaction

C) It increases the rate of the reaction

Answers

Answer:

C) It increases the rate of the reaction

Explanation:

Hope this helps!

Mendeleev developed his table when he placed the elements
in order by increasing atomic number.
TRUE
FALSE

Answers

The answer to this is true

the answer is True

okay

Place a checkmark next to each cellular component necessary to build a bacterial cell:
plasma membrane
cell wall
DNA
nucleus
mitochondria
chloroplast
Golgi apparatus
rouch endoplasmic reticulum
smooth endoplasmic reticulum
flagella

Answers

Answer: Cell wall, DNA,  plasma membrane

Explanation:

Please mark as brainliest if your want!

The cellular component necessary to build a bacterial cell include:

Cell membraneDNACell wallRibosomesCytoplasmFlagella

What is Bacteria?

These are micro-organisms which can't be seen with the eyes but with the use of instruments such as microscope.

They lack a nucleus and their DNA is usually found in the nucleoid region of the cell.

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Make list of farm tool used in:

Land preparation
Cultivation
Plant propagation
Harvesting

Answers

Answer:

Land preparation:

This has to do with preparing the land in preparation for planting.

Farm tools used in land preparation include scrapers, ditchers, ploughs, levelers.

Cultivation:

This has to do with loosening the soil for farm use.

Farm tools used in Cultivation include: spade, shovel, rake, etc.

Plant propagation:

This is the act of growing new seeds, using different sources.

Examples of farm tools used in this operation include: propagation knife, hand pruner, sharpening stone, etc

Harvesting:

This is the process of collecting or gathering crops which were planted and have reached age of maturity.

Examples of farm tools used in this operation are hand sickle, darat, gandasa, etc.

The list of farm tools used for various uses include the following:

Land preparation-This involves preparing the land for planting. Examples of farm tools used include tractor, harrows, plough, levelers etc

Cultivation- This involves the process of preparing the soil for planting and crop cultivation. Examples of farm tools used in cultivation include spade, shovel, rake, etc.

Plant propagation- This involves different techniques which are used to grow crops using stems or leaves of plants. Examples of farm tools used include propagation knife, hand pruner, sharpening stone, etc

Harvesting- This involves the process of gathering planted crops which have reached maturity and ready for consumption and other uses. Examples of farm tools used include hand sickle, darat, gandasa, etc.

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how has limiting factors for the ecosystem impacted pythons in the everglades

Answers

Answer:

Explanation:

Non-native Burmese pythons have established a breeding population in South Florida and are one of the most concerning invasive species in Everglades National Park. Pythons compete with native wildlife for food, which includes mammals, birds, and other reptiles. Severe mammal declines in Everglades National Park have been linked to Burmese pythons.

The most severe declines in native species have occurred in the remote southernmost regions of Everglades National Park, where pythons have been established the longest. In a 2012 study, populations of raccoons had dropped 99.3 percent, opossums 98.9 percent, and bobcats 87.5 percent since 1997. Marsh rabbits, cottontail rabbits, and foxes effectively disappeared.

The mammals that have declined most significantly have been regularly found in the stomachs of Burmese Pythons removed from Everglades National Park and elsewhere in Florida. Raccoons and opossums often forage for food near the water’s edge, which is a habitat frequented by pythons in search of prey.

Based on the description of DNA, given in the Do Now, what could be the nucleotide composition of a DNA double helix? 90 points 20% adenine, 20% guanine, 30% thymine, 30% cytosine 60% adenine, 20% thymine, 10% guanine, 10% cytosine 20% adenine, 20% thymine, 30% guanine, 30% cytosine 60% adenine, 20% guanine, 10% thymine, 10% cytosine

Answers

Answer:

20% adenine, 20% thymine, 30% guanine, 30% cytosine

Explanation:

Edwin Chargaff stated in his rule that, in a DNA molecule, the amount of purine bases (Adenine and Guanine) should equate the amount of pyrimidine bases (Cytosine and Thymine). Mathematically, this means that;

A + G + C + T = 100%

Where;

% Adenine base = % Thymine base

% Guanine base = % Cytosine base

Hence, according to this question, the DNA molecule described will contain

20% adenine = 20% thymine,

30% guanine = 30% cytosine

20% A + 20% T + 30% G + 30% C = 100%

Which two of the following correctly describe what a gene is?

A packet of genetic information that can be passed down from one generation to the next
A DNA molecule
The entire collection of genetic information in a given species
A section of DNA that provides instructions for building a specific protein
I'm not sure

Answers

Answer:

A section of DNA that provides instructions for building a specific protein and A packet of genetic information that can be passed down from one generation to the next

Explanation:

A DNA molecule is not a gene, it is a nucleotide. The entire collection of genetic information in a given species results isn't a gene although many genes comprise what is the genome.  Given that those two answers are not what genes are, the other two options are correct.

Consumers, or heterotrophs, take in food made by other organisms. Then they break apart the food to release its energy. How do these actions of consumers contribute to the carbon cycle?
A. Eating and breaking apart food converts carbon to other elements.
B. Eating and breaking apart food converts other elements into carbon.
C. Eating food involves taking up carbon dioxide.
D. Eating and breaking apart food releases carbon dioxide as a byproduct.

Answers

Answer:

d ? maybe , i just guessed tbh .

Answer: ya it’s D)

Explanation:


Diffusion is the movement of molecules from an area of high concentration of molecules to an area with a ____ concentration.

A. Equal
B. Higher
C. Lower
D. None of the above

Answers

Answer:

lower

Explanation:

Diffusion is the movement of molecules from an area of high concentration to an area of lower concentration. So, the correct option is C.

What is diffusion?

Diffusion is a type of passive transport, this means that it does not require any kind of external energy for movement of molecules. The difference in concentration in two areas gives rise to a concentration gradient. Where, in one area there is high concentration of molecules and in another, there is low concentration of molecules.

If the molecules move from an area of higher concentration to an area of lower concentration, they are moving along the direction of concentration gradient. This is why no additional energy is required. Diffusion is a type of passive transport where molecules move along a concentration gradient.

This is in contrast to active transport where molecules move against the concentration gradient and therefore require external energy.

Therefore the correct option is C.

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What groups of organisms are most in danger of extinction?

A. Those with small population
B. Those that migrate or need special habitats
C. Those with large populations that breed quickly
D. Both a and b

Answers

Explanation:

D.Both a and B

As organisms with small population and those who migrate and need special habitat are most in danger of extinction.

The group of organisms that are in danger of extinction is those that have small populations and those that migrate or need special habits. So the correct option is D.

What is the extinction of species?

In biology, extinction refers to the extinction or death of a species. Extinction happens when a species' numbers are reduced due to evolutionary changes in its members, such as genetic inbreeding, poor reproduction, and population decline, or due to environmental factors like habitat fragmentation, climate change, natural disasters, and overexploitation of the species for human use.

The majority of species that have ever existed on Earth have gone extinct, but the fossil record indicates five very significant extinctions, known as mass extinction events, each of which resulted in the extinction of enormous numbers of species. The bulk of extinctions, which happen continuously and are described as background extinctions, are separated from these glaring decreases in the variety by the term "mass extinction."

Therefore, the correct option is D.

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When a biological vector is used, which process is used to ensure there are large amounts of DNA?

Answers

Answer:

Cloning

Explanation:

It makes the most sence

Answer:

cloning

Explanation:

i looked it up

have a great day!

When we place a teabag in hot water, the water takes on a brownish colour. Explain which process has taken place.

Answers

Answer:

diffusion

Explanation:

the particles form the tea are moving from an area of high concentration of tea to a low concentration of tea. If you want to be even more speficic this is osmosis; the diuffuion of partcles in water

hope this helps :)

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