A cube of aluminum measures 3 cm on each side and weighs 81 g. What is its density? (hint: find the volume of the block first).

Answers

Answer 1

Answer:

3 grams per cubic centimeter.

Explanation:

density = mass ÷ volume.

d = m ÷ v.

m=81 g.

volume = length × width × height.

volume = 3 cm × 3 cm × 3 cm = 27 cubic centimeters.

v = 27 cubic centimeters.

d = 81 ÷ 27

density = 3 grams per cubic centimeter.


Related Questions

What is the main idea presented in the passage? tattoos can cause infections through dirty needles. The safety of tattoo inks has not been studied enough. Getting a tattoo is a very high-risk activity that is not recommended. The fda controls and licenses tattoo parlors.

Answers

Answer:

The safety of tattoo inks has not been studied enough.

Explanation:

Just took the test.

The main idea presented in the passage is the safety of tattoo inks has not been studied enough. The correct option is B.

What are tattoos?

A tattoo is a type of body modification that involves introducing permanent or temporary tattoo ink, dyes, and/or pigments into the dermis layer of the skin. The justifications for getting tattoos have changed over time and across the globe.

They include creative expression, permanent cosmetics, for protection or as a source of power, for religious purposes, as a sign of group affiliation, for status symbols, for protection from harm, or as a supplement to reconstructive surgery.

Modern industrial organic pigments, mineral pigments, vegetable-based and plastic-based pigments, as well as modern industrial organic pigments, can all be found in the tattoo ink.

Therefore, the correct option is B, The safety of tattoo inks has not been studied enough.

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Read the sentence. I ate too many pancakes at breakfast and felt like i might ________. The best example of hyperbole that would complete the sentence is starve. Sleep. Burst. Groan.

Answers

I ate too many pancakes at breakfast and felt like I might BURST. Hyperbole refers to the use of exaggerated speech.

Hyperbole refers to the use of exaggerated speech as a rhetorical device to express an idea.

These types of expressions (hyperbole expressions) should not be taken literally.

An example of a hyperbole expression is 'There's enough food in the cupboard to feed the entire army'

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Answer:

burst

Explanation:

Please select the word from the list that best fits the definitionrate.

Answers

Answer:

Where is the list? Please, give the picture?!

Maya is playing a trivia game with multiple choice questions. Each question has 222 correct answers among 555 answer choices. Maya has no idea what the answers to a certain question are, so she needs to choose two different answers at random. What is the probability that maya's first guess is correct and her second guess is incorrect? round your answer to two decimal places.

Answers

The probability that maya's first guess is correct and her second guess is incorrect is 0.24

From the question given above, the following data were obtained:

Correct answer (C) = 222Total answer = 555Incorrect answer (I) = 555 – 222 = 333

Next, we shall determine the probability that her 1st guess is correct.

Correct answer, nC = 222Total answer, nS= 555Probability of correct answer, P(C) =?

P(C) = nC / nS

P(C) = 222 / 555

Next, we shall determine the probability that her 2nd guess is incorrect

Incorrect answer, nI = 333Total answer, nS = 554Probability of incorrect answer, P(I) =?

P(I) = nI / nS

P(I) = 333 / 554

Finally, we shall determine the probability that her first guess is correct and her second guess is incorrect.

Probability of correct answer, P(C) = 222 / 555Probability of incorrect answer, P(I) = 333 / 554Probability of 1st correct and 2nd incorrect, P(C n I) =?

P(C n I) = P(C) × P(I)

P(C n I) = (222 / 555) × (333 / 554)

P(C n I) = 0.24

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Answer: 3/10 or 0.3

Explanation: P(1st correct AND 2nd incorrect)= 2/5 • 3/4= 3/10 or 0.3

A board game that normally costs $30 is on sale for 25 percent off. What is the sale price of the game?$22. 50$27. 50$32. 50$37. 50.

Answers

The sale price of the game is $22.50

25% of 30 is:
30/4 = 7.5
25% off, meaning a discount
30 - 7.5 = 22.5

So your answer is $22.50


You have 41. 6 g of o2 gas in a container with twice the volume as one with co2 gas. The pressure and temperature of both containers are the same. Calculate the mass of carbon dioxide gas you have in the container.

Answers

Answer: The mass of carbon dioxide is 28.6 grams

Explanation:  Step 1: Data given

Mass of O2 = 41.6 grams

Volume of the O2 container = 2V

Volume of the CO2 container = V

Pressure and temperature are the same

Step 2: Ideal gas law

The ideal gas law = p*V=nRT

For O2: p*2V = n(O2)*R*T

For CO2: p*V = n(CO2)*R*T

n(O2)*R*T / P*2V = n(CO2)*R*T / P*V

Since P, R and T are contstant, we can simplify this to:

n(O2)/2 = n(CO2)

Step 3:  Calculate moles of O2

Moles O2 = mass O2/ Molar mass O2

Moles O2 = 41.6 grams / 32 g/mol

Moles O2 = 1.3 mol O2

The number of moles CO2 = 0.65 mol

Mass of CO2 = Moles CO2 * Molar Mass CO2

Mass of CO2 = 0.65 mol * 44.01 g/mol

Mass of CO2 = 28.6 grams

The mass of carbon dioxide is 28.6 grams

mark me as brainliest because it took me hour to solve this pls

The author’s main purpose is to convince readers to.

Answers

Can you show us the choices to the question

which of the following best explains why humans sweat when they feel hot?

Answers

Answer:

sweating helps keep your internal temperature at a comfortable 98.6 degrees Fahrenheit. “Sweating helps release heat, which helps maintain optimal body temperature,” says Pamela Webert

Which of the following describes the effect of high altitude on climate.

Answers

The statement which best describes the effect of high altitude on climate is: temperatures are lower.

A climate can be defined as the long-term average atmospheric conditions (weather) that is prevailing in a geographical region and persists for a very long period of time.

Generally, some of the factors that affect the climate of a geographical region include the following:

Earth surfaceTopographyGlobal wind patternsLatitudeAtmospheric pressureAltitude (elevation).

According to meteorologist, an effect of high altitude on climate is that the temperatures in the particular geographical region are lower, especially due to the height of this region above sea level.

In conclusion, an effect of high altitude on climate is colder temperatures in a particular geographical region.

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Read the excerpt from "justin lebo. " on the way home, justin was silent. His mother assumed he was lost in a feeling of satisfaction. But he was thinking about what would happen once those bikes got wheeled inside and everyone saw them. How would all those kids decide who got the bikes? two bikes could cause more trouble than they would solve. What conflict is introduced in this excerpt?.

Answers

The conflict which is introduced in the given excerpt is:

An internal conflict because Justin is undecided about how the other kids are going to decide who got the bikes.

Based on the given excerpt, we can see that the narrator talks about the scene where Justin was going home with some bikes and while his mother misinterpreted his silence for satisfaction, he was actually lost in thought because of an internal conflict.

With this in mind, we can see that the internal conflict which Justin had was that he did not know what would happen to the bikes once they are wheeled into the garage and the kids decide who got the bikes.

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_________ applies to objects that are 3-dimensional in nature and has height, width, and depth.

Answers

Form is a feature that applies to objects that are three-dimensional (3-D) in nature and has height, width, and depth.

Form can be defined as an element of art that is typically enclosed in a space.

Basically, form is a three-dimensional (3-D) geometrical figure because it shows three-dimensions, which include:

HeightWidthDepth

This ultimately implies that, the three-dimensional (3-D) parameters that makes up form are height (length), width (breadth) and depth.

In conclusion, form as an element of art is a feature that applies to objects that are three-dimensional (3-D) in nature and has height, width, and depth.

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in what 3 ways did the presidential election process change as a result of the election of 1800?

Answers

Three ways that the presidential election process change as a result of the election of 1800 were that the elections for president and vice president were kept separate, the nomination of candidates for presidential electors pledged to vote for their party's presidential ticket.

Western civilization includes which of the following countries? peru mexico south africa united states of america india russia brazil canada france china.

Answers

Answer: Peru, Mexico, United states of America, Brazil, and Canada.

Explanation:

They are all on the west

Western civilization includes the following list of countries:

PeruMexicoUnited States of AmericaBrazilCanadaFrance

Western civilization is also referred to as Western culture and it can be defined as a terminology that is used to describe the various cultural heritage of a country in the Western world. Thus, Western civilization is a cultural heritage that comprises the following:

Political systemsArtifactsSocial normsEthical valuesTraditional customsBelief systems Technologies

In this context, countries that are under Western civilization includes the following:

PeruMexicoUnited States of AmericaBrazilCanadaFrance

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An elevator in a hotel starts at ground level. It rapidly moves up to the third floor, where it stops to unload passengers. The elevator then descends to the basement at a slower speed than before.

Answers

The graph correctly represents the story illustrated in the graph.

From the given graph, from the ground floor to the third floor is a rapid acceleration.

During the unload at the third floor, the velocity was constant until all the passengers was unloaded.

The deceleration of the elevator was slower than the acceleration because it occurred at a longer time.

Thus, we can conclude that the graph correctly represents the story illustrated in the graph.

The complete question is below:

An elevator in a hotel starts at ground level. It rapidly moves up to the third floor, where it stops to unload passengers. The elevator then descends to the basement at a slower speed than before. identify whether or not the graph correctly represents the story. Explain your answer.

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A government has stopped printing money. It has also directed its national banks to limit new loans to increase the amount of currency held in reserve. The government's goal is to reduce the amount of money available to keep the value of its currency from dropping. Which macroeconomic goal is this government trying to achieve?.

Answers

The macroeconomic goal that this government is trying to achieve is: Increasing its gross domestic product (GDP).

Macroeconomics can be defined as the study of performance, behaviors, and factors that affect an entire economy. Thus, macroeconomics is mainly focused on the following aggregate phenomena with respect to the central bank, demand or supply shocks, government policies, aggregate spending and savings:

Price levelEconomic growthGross Domestic Product (GDP)InflationUnemploymentNational income levels

In this scenario, the government is typically interested and aiming to reduce the amount of money (money supply) that is available within the economy, in order to keep the value of its currency from dropping and depreciating.

This ultimately implies that, the macroeconomic goal that this government is trying to achieve is an increase in its gross domestic product (GDP).

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Answer:

reducing inflation

Explanation:

a pex

____________ reinforcement occurs if a behavior is only reinforced some of the time. A. Continuous b. Positive c. Intermittent d. Negative.

Answers

Answer:

Its c! Intermitted

Explanation:

I took the test

Intermittent reinforcement occurs if behavior is only reinforced some of the time. The correct option is c.

What is Intermittent reinforcement?

Delivering rewards at irregular periods is known as intermittent reinforcement. This technique has been shown to elicit the most effort from the subject.

The subject is rewarded at what appears to be random intervals, rather than every time they exhibit a desirable behavior or in accordance with any set plan. In order to enhance the trauma bond, which is the result of the victim's extreme emotional experience as she battles for her life and looks to the abuser for approval, intermittent reinforcement is used.

Positive reinforcement, negative reinforcement, extinction, and punishment are the four different types of reinforcement.

Therefore, the correct option is c. Intermittent.

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Storing raw food requiring a higher cooking temperature below or away.

Answers

Storing raw food that requires a higher cooking temperature away

You are driving on a two lane highway and you see an oncoming motorcycle approaching in your lane.

Answers

On a two (2) lane highway, the actions you should take when you see an oncoming motorcycle approaching in your lane are: sound your horn, brake sharply, and steer for the right-side of the road or the ditch.

As a general rule, all road users such as drivers and pedestrians are expected to obey the traffic rules and signs that established by a road safety agency, so as to ensure their safety, as well as prevent or mitigate the occurrence of car accidents on the roads.

Based on traffic rules and signs, a two (2) lane highway is partitioned into two lanes, with one on the right and the other on the left.

In this scenario, the actions you should take as a driver, when you see an oncoming motorcycle approaching in your lane include the following:

Sound your horn.Brake sharply.Steer for the right-side of the road or the ditch.

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Please select the word from the list that best fits the definition ages 85 and older.

Answers

Answer:

Where is the list?????!!!

Answer: Old-Old

Explanation:

The following is a necessary tool when working on a computer:.

Answers

Screw driver, Philip s screw driver,and torx screw driver or bit

Which of the following statements correctly describes the chromosomes in each daughter cell at the end of meiosis.

Answers

Answer:

Following? There are many other people that forgot the follow ing??

Events d and e are independent, with p( d ) = 0. 6 and p( d and e ) = 0. 18. Which of the following is true?.

Answers

Answer:

(D) P(D or E) = 0.72

Explanation:

That's the correct answer.

What was the immediate cause of the springtime of the peoples.

Answers

Explanation:

An immediate cause of the springtime of the people's was the Revolution in France which led to the democratic government in France. This caused discomfort in many other nations.

Which are 2 open issues that you can view from the transaction review tab?.

Answers

Based on QuickBooks analysis, the 2 open issues you can view from the transaction review tab are "transactions with missing info and transactions with incorrect info."

Transaction Review Tab

The Transaction Review Tab is the tab that allows the users to have an overview of what they have done and make necessary adjustments if need be.

Generally, the Transaction Review Tab in QuickBooks shows two significant issues for users to rectify; these issues are transactions with missing info and transactions with incorrect information.

Hence, in this case, it is concluded that the correct answer is "transactions with missing info and transactions with incorrect info."

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for which value of x does each expression make sense

Answers

The domain is the x value. x is just any random number, it has no set value.

What was a result of the efforts of john steinbeck, dorothea lange, and woody guthrie?.

Answers

Answer:

Answer:

More Americans became aware of the problems of migrants

.Explanation:

John Steinbeck, Dorothea Lange, and Woody Guthrie were all immigrants to America and their works in various ways highlighted the problems facing immigrants.

For instance, Woody Guthrie write a song which mirrored the racial injustice faced by passengers before and after a plane crash.

Their efforts made more Americans become aware of the problems of migrants.

The result of the efforts of John Steinbeck, Dorothea Lange, and woody Guthrie was more Americans became aware of the problems of migrants. The correct option is C.

Who were John Steinbeck, Dorothea Lange, and woody Guthrie?

All three authors—John Steinbeck, Dorothea Lange, and Woody Guthrie—came to America as immigrants, and their writings in unique ways highlighted the difficulties immigrants face.

A song by Woody Guthrie, for instance, reflected the racial unfairness experienced by passengers both before and after an aircraft disaster. More Americans are now aware of the issues affecting migrants thanks to their work.

Therefore, the correct option is C, More Americans became aware of the problems of migrants through the work of These three people.

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The question is incomplete. Your most probably complete question is given below:

Fewer Americans felt sympathetic toward migrants.

More Americans decided to become migrants.

More Americans became aware of the problems of migrants.

Fewer Americans became unemployed.

A car travels 35. 0 mph north for 1. 00 hour, then 40. 0 mph east for 0. 0500 hour, and finally 50. 0 mph northeast for 2. 00 hours. Calculate the average speed.

Answers

Answer:

the average speed is approximately 44.92mph

Which statement best describes what energy transfer diagrams show?.

Answers

Answer:

Energy can change form, but the total amount of energy stays the same.

Muriel told shana that one of the products in the table was incorrect. Which value in the table is incorrect? what is the value shana should have written?.

Answers

The product of expressions or numbers is calculated by multiplying the expressions or numbers.

The incorrect value in the table is [tex]-2y[/tex]The value that should have been written is [tex]-2xy[/tex]

From the table (see attachment), the incorrect product is given as:

[tex]-y \times 2x = -2y[/tex]

The above product is incorrect.

This is so because when -y is multiplied by 2x, the result is [tex]-2xy[/tex]

So, the correct expression is:

[tex]-y \times 2x = -2xy[/tex]

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Answer:

Shana used a table to multiply the polynomials 2x + y and 5x – y + 3. Her work is shown below.

A 3-column table with 2 rows. The first column is labeled 5 x with entries 10 x squared, 5 x y. The second column is labeled negative y with entries negative 2 y, negative y squared. The third column is labeled 3 with entries 6 x, 3 y. The first row is labeled 2 x and the second row is labeled y.

Muriel told Shana that one of the products in the table was incorrect.

Which value in the table is incorrect?

✔ –2y

What is the value Shana should have written?

✔ –2xy

Explanation:

In model 1 a pathogen (virus, bacteria, foreign protein, parasite) has entered the bloodstream of an individual. Draw the symbol that represents the pathogen.

Answers

There are different kinds of pathogens. The representation of the symbol that stands for the pathogen are;

The helper T-cell is represented like a Circle with the Th wrote inside.  

 The surface protein on the Th cell is the symbol that looks like this ⊥           or T Th cells.

Pathogens are known to be microorganisms that do invade the bloodstream. It can be easily see among the white cells.

Helper T-cell is known to consist of T-Lymphocytes which monitors the regulation of the immune system. T-cells are regarded as the helper cells that monitors the initial response in front of the pathogen. They includes; TH1, TH2, and TH17.

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