To test how different surfaces affect friction, a student placed a block of wood on a glass surface and a block of glass on a wooden surface. The two blocks were identical in weight and dimensions. He then arranged the setup as shown in the image. Very carefully, he added 10 g weights to the two pans at the end of each rope and observed the results. What could be a source of error in this experiment?

A) Smaller masses should have been added to the pan for more accurate results.
B) The blocks are not variables and should be identical in structure and composition.
C) Glass is not an ideal material for the block as it has a very low coefficient of friction. D) Friction depends on the weight of the object, so the blocks should have different weights.

Answers

Answer 1

Answer:

The blocks are not variables and should be identical in structure and composition.

Explanation:


Related Questions

what is atlantic charter​

Answers

Explanation:

The Atlantic Charter was a joint declaration issued during World War II (1939-45) by the United States and Great Britain that set out a vision for the postwar world. First announced on August 14, 1941, a group of 26 Allied nations eventually pledged their support by January 1942.

Some researchers believe women and men grow up in different speech communities. According to that idea, men are taught to do ________ and women are taught to do ________.

Answers

Answer:

instrumental talk; expressive talk

Explanation:

i hope this helped

According to that idea, men are taught to do instrumental talk and women are taught to do expressive talk. Hence, instrumental talk; expressive talk are the correct answer to the fill in the blanks respectively.

What is Instrumental talk?

Instrumental talk refers to the type of talk that is aimed to solve a certain problem or issue.

Instrumental talk refers to the type of talk that is aimed to solve a certain problem or issue. Expressive talk on the other hand defines to the type of talk that is aimed to form a close relationship with other people.

Most culture tend to have a certain expectation of the people with different genders. Women tend to be expected to play an attentive role such as taking care of children, which is why researchers believe that they are taught to do expressive talk since they are little. Men on the other hands were expected to be in leadership roles, which is why instrumental talk is taught to men since early age of time.

Therefore, According to that idea, men are taught to do instrumental talk and women are taught to do expressive talk. Hence, instrumental talk; expressive talk are the correct answer to the fill in the blanks respectively.

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Buddhism became popular in part because it did not support Multiple choice question. A) the jati social system. B) dharma. C) the Hindu gods. D) life after death.

Answers

A) The Jati Social System

Llamas are most closely related to _______. Horses donkeys camels sheep.

Answers

Answer:

Camels is the answer!

Hope this helped you!

Answer:

Either camels, or horses

Explanation:

A partygoer drinks alcohol and becomes inebriated. After sobering up, they forgot where they put her car keys. After drinking enough to become inebriated again, they recall where they put them. This is an example of what form of memory

Answers

Answer:

If I am correct it would be state dependent memory.

Explanation:

Hope this helps and if you want to- give me brainliest it's up to you

Passe bonne une journee :)

Siddhartha's revelation of the proper lifestlye to live is often called:
A. The Golden Rule
B. Asceticism
C. The High Road
D. The Middle Path

Answers

Siddhartha's revelation of the proper lifestlye to live is often called: B. Asceticism.

What is Asceticism?

This refers to the system of living that would make a person to go and live in a secluded area fo religious reasons.

It could be in the form of a settlement where a group of persons live in seclusion.

Read more on the Siddhartha here: https://brainly.com/question/7668309

What was the conflict between the u.s. and japan that led us to war

Answers

Answer:

On December 7, 1941, Japan staged a surprise attack on Pearl Harbor, decimating the US Pacific Fleet. When Germany and Italy declared war on the United States days later, America found itself in a global war.

Explanation:

Emotions such as empathy, pride, and embarrassment are considered ______. A. self-conscious emotions B. basic emotions C. emotional display rules D. social referencing emotions

Answers

Answer:

A) Self-conscious Emotions

Explanation:

In psychology, people who are prideful, easily embarrassed, and empathetic towards others often have a key component of issues dealing with self-consciousness. This can affect someone's ability to have interpersonal relationships with people, so, therefore, this is the best answer to your question. Hope that helps :)

A study is being done on the effects of a new antibiotic on cognitive ability. In this scenario, the antibiotic is considered to be the:_____________

a. experimental group.
b. control group.
c. independent variable.
d. dependent variable.

Answers

There are different kinds of variables. The antibiotic is the independent variable in the study above.

What is the independent variable in an experiment?

The independent variable is known as the factors or conditions that one has to manipulate in the course of an experiment.

The hypothesis one has is that this specific variable lead to a direct effect on the dependent variable. In the above, he antibiotic is the independent variable.

learn more about independent variable from

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What does personally identifiable information include.

Answers

Answer:

Further, PII is define as information :(i) that directly identifies an individual

(e.g.,name,address, social security, number or other identifying number or code, telephone number,email address,etc.) or (ii) by which an agency intends to identify specific individuals in conjunction with other data elements, i.e., ...

Explanation:

I Hope It's Help

#Carry On Learning

____Mscurator57

1. Why did kings claim that they had "divine right"?

Answers

probably because they were “greater” than everyone else

Why might an effective rent control actually increase homelessness in a city?.

Answers

Answer: One significant problem with many rent control policies is that they are not targeted enough toward the needy

Explanation:

Do you have to be a citizen to compete in olympics.

Answers

Answer:

yes you have to be a citizen

Explanation:

National Olympic Committees are responsible for entering competitors, and those competitors must be “a national” of that NOC's country.

How many episodes of discovery of witches season 3.

Answers

Answer: Seven

Explanation:

How do they decide the order of countries in the olympics?.

Answers

Answer:

The order each country enters depends on the alphabet of the host nation.

In what circumstances does a capital good become a consumer good?​

Answers

Answer:

Capital goods and consumer goods are terms used to describe goods based on how they are used. A capital good is any good used to help increase future production. Consumer goods are those used by consumers and have no future productive use. ... An apple bought at a grocery store and immediately eaten is a consumer good.

Explanation:

I hope it will help you...

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How old was langston hughes when he wrote the negro speaks of rivers.

Answers

Answer:

20 years old.

Explanation:

He was born in 1901 and wrote the book in 1921.

Is online learning as good as face-to-face learning.

Answers

It depends on the person. Face-to-face learning helps most people to get more involved.

WHERE DID THE MAJORITY OF SLAVES COME FROM?
a. EGYPT
b. AFRICA
c. WARS
d. EURASIA

Answers

Answer:

Africa

Explanation:

I already took a test with same question.

The Secretary of State is the president’s chief advisor on
_______________________________. Thomas __________________ and
Colin __________________ are among America’s former Secretaries of
State.

Answers

Answer:

1. foreign affairs adviser

2. Jefferson

3. Luther Powel

Explanation:

that are the anwers

Resources are things people use to make goods and provide . The resources used to create goods and services are divided into three main categories: land, labor, and .

Answers

Answer:

The resources used to create goods and services are divided into three main categories: land, labor, and capital.

Explanation:

Land - Land is the largest asset that an entrepreneur owns. The enterprise that produces goods and services stands on an independent piece of land which enables it to function without any hindrance.

Labor - The people that are responsible for the generation of goods and services are referred to as labor. The elements that go into production are controlled by labor in order to achieve the desired outcome.

Capital: To start an enterprise, the first and the foremost thing that is required is 'capital'. Capital serves as the initial investment that the entrepreneur uses to set up the enterprise.

Resources are things people use to make goods and provide services. The resources used to create goods and services are divided into three main categories: land, labour, and capital.

The term "resources" refers to anything that has some utility to satisfy our responsibilities. Resources have an important role in human life because they used to make goods and provide services.

There are some resources of the available such as land, labour, and capital. The land means (place of work), labour means (employees), and capital (investment). It was the important to our allocation of the resources.

As a result, the significance of the resources are things people use to make goods and provide are the aforementioned.

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3 most important advantages of globalisation and explain why you think they are the most important.

Answers

Answer: Access to New Cultures, The Spread of Technology and Innovation , Lower Costs for Products, Higher Standards of Living Across the Globe , Access to New Market, Access to New Talent

Explanation: Hope this helps

According to Durkheim, a society that is in a state of anomie :
lacks shared consensus about right and wrong
has low levels of solidarity (social bonds) that unite members of society
creates an environment that promotes deviant behavior
All of the above

Answers

For sociologist Durkhein, a society is in a state of anomie when it lacks shared consensus about right and wrong, has low levels of solidarity that unite its members, and creates an environment that promotes deviant behavior.

Durkheim's Theory

Society has the function of being a formal and informal social institution that generates a social structure where there is the integration of individuals.

The weakening of society generates a state of "anomie", that is, when the rules and norms of society are not able to promote its organization and standardization.

Therefore, the correct answer is:

All of the above

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According to Stapleton, ______________________ centers race as a socially constructed phenomenon and assumes that racism is endemic (regularly occurring).

Answers

Stapleton indicated in the Critical Deaf Theory that audism is a phenomenon that is socially constructed and posits that audism occurs regularly. This is closely linked to deficit error.

What is Audism?

This is the practice of discriminating against people who have hearing challenges. This prejudice may occur in the following ways:

trying to assist people who are deaf to communicate:asking a person with hearing challenges to read one's lips or write against their wish or preferred mode of communicationrefusing to get an interpreter at the request of a deaf person.

Audism is very similar to Deficit Error.

Please see the link below for more about Deficit Error:

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how to learn 2 subjects in one day
ill give brainlist

Answers

Answer:

study only 1 subject in 1 hr a day

Explanation:

and break is 5hrs

Who kicked the longest field goal in super bowl history?.

Answers

Answer:

Christie kicked the Longest field goal in super bowl history

Individuals benefit from __________ about their problems. A. Keeping silent B. Yelling C. Talking D. Obsessing.

Answers

Answer:

C talking

Explanation:

Talking helps people relax and sometimes talking can make a persons day improve. (talking is powerful)

Answer:

C. Talking

Explanation:

This is the reason why  medical professionals to help you talk it out.

[RevyBreeze]

As part of a research project, a participant uses a smart phone application that signals her at random times throughout the day. At those times, the application presents a series of questions for her to answer regarding her current activities. This is an example of ________ data.

Answers

Experience sampling

A government where people elect a representative to represent the republic is known as a?.

Answers

Answer:

Representative democracy, also known as indirect democracy.

An overall plan for obtaining the information needed to address a research problem or issue is called the.

Answers

Answer: research design!

Explanation:

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