Which of the following is true for a single, fixed pulley?
It provides negative mechanical advantage, making the load harder to lift but decreasing the distance
it must be lifted
It provides no mechanical advantage and does not change the direction of the applied force.
O It provides no mechanical advantage, just changes the direction of the applied force.
It provides positive mechanical advantage by making the load easier to lift at the expense of distance.

Answers

Answer 1

Answer:

It provides no mechanical advantage, just changes the direction of the applied force.

Explanation:

I got it right on the workbook


Related Questions

PLEASE ANSWER ASAP - Why are many producers needed to support a smaller number of consumers in food pyramids?

A) Because a tremendous amount of energy is lost as one moves up trophic levels.

B) Because of the exponential increase in energy gained as one moves up the trophic.

C) Because even though there is a greater number of organisms at the uppermost trophic levels, their total energy needs are far greater than those of all species combined at the lower trophic levels.

D) Because the total mass of the consumer level is far greater than that of the producers.

Answers

Answer:

A

Explanation:

Because the number of energy is lowering down as it leveled up in pyramid.

Many producers needed to support a smaller number of consumers in food pyramids because a tremendous amount of energy is lost as one moves up trophic levels, as in option A.

What is energy in an ecosystem?

The energy available to an ecosystem originates from the sun and is captured by photosynthetic organisms such as plants. These organisms convert light energy into chemical energy through photosynthesis, and this energy is stored in the form of organic molecules like carbohydrates, lipids, and proteins. These organic molecules serve as food for other organisms in the ecosystem, including herbivores, carnivores, and decomposers. However, as energy moves up the food chain from one trophic level to the next, much of it is lost due to inefficiencies in energy transfer and cellular respiration.

Hence, many producers needed to support a smaller number of consumers in food pyramids because a tremendous amount of energy is lost as one moves up trophic levels, as in option A.

Learn more about the energy in the ecosystem here.

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#SPJ2

If an unknown element has a mass number of 14 and you are told that it has 7 neutrons, how many protons does it have?
A. Substract the number of neutrons from the mass number = 7 protons
B. Substract the number of neutrons from the atomic number = 0 protons
C. Add the mass number to the number of neutrons = 21 protons
D. Add the mass number to the number of electrons = 21 protons

Answers

Answer:

The answer to that question is A

Which researcher theorized that hypnosis comes about as a form of roleplay between hypnotist and subject? a. ernest hilgard b. theodore sarbin c. theodore barber d. milton erickson

Answers

Milton Erickson is the researcher who theorized the hypnosis that comes out form the roleplay between hypnotist and subject.

What do you mean by Hypnosis?

Hypnosis may be defined as a state that corresponds to sleep but is caused by a person whose directions are readily accepted by the subject.

Milton Erickson performed a lot of research on the concept of hypnotism. He specializes in hypnotism and the unconscious state of mind to a larger extent.

Therefore, Milton Erickson is the researcher who theorized the hypnosis that comes out form the roleplay between hypnotist and subject.

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(50 points) An explanation or statement that has been heavily tested and is supported by a large body of evidence is called a -

Answers

Answer:

[tex]\huge\boxed{\sf Scientific \ theory}[/tex]

Explanation:

A scientific theory:

is a well-explained piece of information.is supported by great evidence.is heavily tested.has never been proved wrong.explains why any natural phenomenon occur.

[tex]\rule[225]{225}{2}[/tex]

How do stop codons on mrna function to end protein synthesis?.

Answers

Signals a halt to protein synthesis
.

Which process depends on binding between specific molecules on both the host and pathogen, so that the pathogen can gain a stable foothold on host tissues

Answers

Adhesion depends on binding between specific molecules on both the host and pathogen so that the pathogen can gain a stable foothold on host tissues.

What is adhesion?

In epidemiology, adhesion makes reference to the process in which pathogen and host interact during an infection.

The adhesion process is fundamental to reach the survival of the pathogen during a particular infection.

These pathogens can be any type of microorganism able to cause harm to the host (e.g., bacteria and fungi).

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Who leaves the golden apple at the wedding of peleus and thetis?.

Answers

Answer:

I saw this question before, I think the answer was Eris

Explanation:

Hope this helps:)....if not then sorry for wasting your time and may God bless you:)

How many molecules of carbon dioxide are used up by the plant in producing each molecule of oxygen

Answers

1

6CO2 + 6H2O → C6H12O6 + 6O2

Hypothesis hurry please!

IF CO2 is added to water,
THEN the pH of the water will ____________ ____________________________________
BECAUSE…Explain here using info from the background research

Answers

Answer:

As atmospheric CO2 levels increase due to anthropogenic causes, dissolved CO2 also increases, which in turn decreases the pH of water.

Explain the importance of an environmental contingency plan.

Answers

Answer:

effectively deal with unexpected changes.

Answer:

Environmental contingency plans are important because it is not possible to accurately predict possible environmental changes brought about by environmental policies and practices. Changes that occur can be disastrous, so having a contingency plan that can be effected to quickly deal with the changes in an attempt to mitigate the damage can be crucial.

Explanation:

The model shows the flow of energy at each trophic level.

Which trophic level contains the most energy, and why?

A Producers; they have the largest number of individuals of all the trophic levels.
B Primary consumers; they have the most variety of plants from which to obtain energy.
C Secondary consumers; they release the least amount of energy into the next trophic level.
D. Tertiary consumers; they have the smallest number of individuals that need to collect energy.

Answers

Answer:

Producers

Explanation:

They get their energy directly from the sun, meaning they have the most. As if goes up the food chain, energy is lost.

The close contact between newborns and family members allow them to become ________ with microbes that become established as their microbiota. (

Answers

The statement is completed as"The close contact between newborns and family members allows them to become contaminated with microbes that become established as their microbiota."

What is microbiota?

Generally, a microbiota is simply defined as microscopic organisms found in a specific environment,

In conclusion, the function of microbiota includes direct competition for limited nutrients and modulation of host immune responses, to protect the intestine.

Read more about the Environment

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2. A hypothesis is an educated guess based upon observation. It is an
explanation of a single event based upon what is observed. A hypothesis has not
been proved but can be supported by experimentation.
a) Suppose that out of 10 trees planted in a yard, only five survived. What kind of
hypothesis could you make about this observation or event? Remember that a
hypothesis needs to have a certain format. (2 points)
I

Answers

Answer:

I could make a hypothesis like the other five didn't have enough sunlight

Explanation:

I would say that because the five could have been in the shade. it could have also been that they didn't get enough water

Answer:

Brainliest pls

Explanation:

Based upon the experience with the trees, I’d make the hypothesis that my yard was not sustainable enough to support all of the trees, so only half lived.

PLEASE HELP!!! 20 POINTS
which organism most likely has 1% of the suns energy available for its use?

Answers

Answer:

snake

Explanation:

snake because it's the only organism that only eats organisms containing 10%

while the hawk can have 1% of the suns energy from eating a bird with 10%, it also has the chance to only have 0.1% if it eats a bird that had eaten bugs

Word an explanation of an event in nature has occurred

Answers

Answer:

the answer to that question is incident

In a math class with 25 students, a test was given the same day that an assignment
was due. There were 15 students who passed the test and 16 students who completed
the assignment. There were 6 students who failed the test and also did not complete
the assignment. What is the probability that a student who completed the homework
passed the test?

Answers

We can confirm that the probability of a student who completed the assignment receiving a passing grade is above 90%.

How can we calculate this probability?

We can arrive at this number with the information given to us. We are told that of the 16 students who successfully completed the assignment, 15 received passing grades. By dividing this number we can find the percentage of these students that passed, and this serves as the probability, which results in roughly 93%.

Therefore, we can confirm that the probability of a student who completed the assignment receiving a passing grade is above 90%.

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Answer:

12/16

Explanation:

What similar purposes do a chicken wing and a human arm have in common?

Answers

Answer: Chicken wings and human arms have muscles.

Explanation:

Researchers have observed striped
hyenas and gray wolves hunting
together in certain areas
One hypothesis suggests that changing
hunting behavior aids both species in
obtaining better
and more resources. In this hypothesis
the hyenas benefit because the wolves
chase and take
down large animals, such as goats, that
the hyenas usually cannot catch alone
The wolves
benefit from hyenas using their jaw
strength to crack open large bones of
prey to access
additional nutrients from bone marrow.
Which table best identifies the
ecological relationships among the gray
wolf, hyena, and
goats?

Answers

In the table, option D is the right answer because hyena and wolves have a relationship of mutualism whereas wolve is the predator and goat is the prey.

What is mutualism?

It is a symbiotic reationship in which both the organisms get benefit. The wolves and hyene gets benefit of getting food by killing of goat or other hervores.

So we can conclude that option D is the right answer.

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In a pcr reaction, the strands of dna are first separated by ___.

Answers

Answer:

In a pcr reaction, the strands of dna are first separated by heat.

Explanation:

One characteristic shared by Bacteria and ____________ is the presence of ester bonds in their membrane lipids.

Answers

Answer: Eukarya



Hope this helps

Select all that apply.

What do glucose, starch, and cellulose have in common?

They are all carbohydrates.
They are all related to photosynthesis.
They are various forms of sugars.
They are various forms of proteins.

Answers

Answer:

They are all carbohydrates.

Explanation:

Homo polysaccharides include starch, glycogen, and cellulose (same type of sugar-all made of glucose).

1- Amylose and Amyloprotein are the components of starch. Amylose is a branched chain with alpha 1–4 and alpha 1–6 at the branch point, whereas Amylopectin is a linear chain with alpha 1–4 and alpha 1–6 at the branch point.

2- Glycogen is created by forming a branched chain from glucose at alpha 1–6. It has a lot of branches.

3- Cellulose is a linear chain of glucose molecules with beta bonds.

Starch and glycogen serve as short-term energy stores in plants and animals, cellulose found in plant cell wall only.

Select the correct answer. which important biochemical process receives a supply of nad ions from the fermentation process during anaerobic respiration? a. calvin cycle b. electron transport system c. glycolysis d. krebs cycle e. proton pump mechanism

Answers

Glycolysis
Explanation;
Glycolysis is the process by which glucose is broken down to two pyruvat6e molecules. It is the first phase of cellular respiration and occurs in both aerobic respiration and anaerobic respiration.
However, during anerobic respiration or fermentation, pyruvate molecules from glycolysis are not converted to acetyl CoA but they are converted to lactate by lactate dehydrogenase.
During the reduction of pyruvate to lactate NAD+ is regenerated from NADH of glycolysis, this NAD+ is taken back to drive more glycolysis and produce more energy for the cells.

Answer: the answer is c

When looking at the DNA fingerprints for the sets of twins, select "identical" or "fraternal" next to the corresponding sets of letters

Answers

Answer:

See below ~

Explanation:

AA = fraternalBB = identicalCC = identicalDD = fraternal

Remember A and D never represents identical

So the order is

AA=FraternalBB=identicalCC=identicalDD=Fraternal

Typically, amides will hydrolyze under ________ conditions than esters.

Answers

Typically, amides will hydrolyze under More vigorous  conditions than esters

What are Amides ?

Amides are inorganic compounds that contain the group C(O)NH₂, It is derived by replacing a hydrogen atom by a metal which contains NH2−.

Amides require strong conditions for the process of hydrolysis with acid when compared to hydrolysis of esters with acid.

Hence we can conclude that Typically, amides will hydrolyze under More vigorous  conditions than esters

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If hair color, eye color, and the presence or absence of freckles were consistently inherited together, the best explanation would be that _____.

Answers

the genes for these characters are linked on the same chromosome

How many thumb widths are there in the length are in your shoe

Answers

Answer:

everybodies shoe size is different so the answer will vary from person to person

Explanation:

How does blood travel in the mammalian circulatory system.

Answers

Answer:

THIS IS THE ANSWER BUT FROM online:

Blood is pumped from veins of the systemic circuit into the right atrium of the heart, then into the right ventricle. Blood then enters the pulmonary circuit, and is oxygenated by the lungs. From the pulmonary circuit, blood re-enters the heart through the left atrium.

REWORDED BY ME:

Blood is pumped into the right atrium of the heart from veins in the systemic circuit, then into the right ventricle. The blood next enters the pulmonary circuit, where the lungs oxygenate it. The left atrium is where blood returns to the heart from the pulmonary circuit.

Explanation:

I really hope this helped in some way <3 have a good morning:)

How is the male reproductive system different from other body systems? it is not necessary for an individual's survival. it monitors other body systems, and adjusts if necessary. it transports items from one system to another. it is the only system that produces hormones in the male.

Answers

The difference between the male reproductive system to other body systems is it isn’t necessary for vital signs.

What is the male reproductive system?

The male reproductive system consists of the testes, prostate gland, vas deference, and urethra.

Its main functions are to produce male hormones and transport and produce sperms.

It is a necessary system to show the signs and characters of males.

Thus, the correct option is A,  it isn’t necessary for vital signs.

Learn more about the male reproductive system

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Answer: The answer is A: It is not necessary for an individual's survival

Explanation:

Took the test edge 2022

what are the 3 categories of nutrients?

Answers

Answer:

I thought there were only two; macronutrients and micronutrients

Explanation:

fats, carbohydrates and proteins

what is a cell division? whats another name for a cell division?

Answers

When an organism's tiny building blocks undergo a process of splitting into two parts, that's cell division. Another name for cell division is "mitosis."

If you study biology, you'll learn about cell division, when a cell divides into two smaller "daughter cells." During cell division, all the tiny elements of the cell also divide — including the cell's chromosomes, nucleus, and mitochondria. The new cells are genetically identical to the original cell. In addition to mitosis, the simple division of one cell into two, there's also meiosis, when a cell splits into four new cells, each with half the original number of chromosomes.

Hope I helped: Lemon Lex,

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