Answer:
Metals and Minerals in Smart Devices II Quick Check:
1, Which of the following are negative consequences of cobalt mining in the democratic republic of Congo? select the two correct answers
-Thousands of Children Work in cobalt mines
-Dust from cobalt mines causes lung and skin damage.
2, Which of the following statements about recycling electronic waste is true?
-Mineral can be extracted from recycled electronics.
3, Which of the following resources is a conflict mineral used in smart devices?
- Tin
Explanation:
If you read the summary at the end of each lesson for Conexus then it has all the answers there.
Some of the negative consequences of cobalt mining are pollution and child trafficking.
What are the effects of cobalt mining?In general, child traffickers or ongoing struggles for survival compel a lot of young children into working in mines.
In addition, the mining of cobalt pollutes the environment. Cobalt-containing dust inhalation can lead to a variety of health problems, including lung cancer and skin damage in people.
Other impacts include water contamination brought on by mine runoffs, soil degradation, and pollution.
Human rights violations, such as the use of child labor, are prevalent in the DRC's cobalt mining industry. In the DRC, artisanal mining employs 40,000 children, according to Amnesty International. Accidents commonly happen as a result of improper safety procedures, which is also a regular habit.
The complete question is:
Which of the following are the negative consequences of cobalt mining in the Democratic Republic of Congo? Select the two correct answers. (1 point)
a) Thousands of children work in cobalt mines.
b) Increased cobalt mining causes a decrease in gold mining.
c) Dust from cobalt mines causes lung and skin damage.
d) The demand for cobalt is expected to double in the next 10 years.
e) Cobalt is sent to processing plants overseas.
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A manufacturer is doing a quality control check of the laptops it produces. Out of a random sample of 145 laptops taken off the production line, 6 are defective. Which of these statements are true? choose all that are correct
The statement that is true among the options are It is not a reasonable estimate that 0.5% of all laptops produced will be defective.
What is are defective product?A defective product is known to be a kind of product type that is said to be dangerous if used for its intended purpose.
This kind of product are said to be lacking in one way or the other and as such, it can be dangerous or leads to other hazard when used.
See full question below
1. A manufacturer is doing a quality control check of the
laptops it produces Out of a random sample of 145
laptops taken off the production line, 6 are defective
Which of these statements are true? Choose all that
are correct
A. The percentage of defective laptops for a random
sample of 290 laptops is likely to be twice as high as that
of the original sample
B. It is a reasonable estimate that 4% of all laptops
produced are defective
C. It is not a reasonable estimate that 0.5% of all laptops
produced will be defective.
D. It is not a reasonable estimate that 10% of all laptops
produced will be defective
E. The percentage of defective laptops across additional
random samples of 145 laptops is likely to vary greatly
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What are the possible effects of spreading false information using different media forms
Answer:
You can cause others to make bad decisions and even get into trouble with the law! Sometimes false information can be detected and removed by social media filters. But other times it is not and can put you in a bad situation with the government, your job, and even your family. Be careful with what you post and stay safe online.
Explanation:
What is the ph of a 0.420 m solution of c₅h₅nhbr (kb of c₅h₅n is 1.7 × 10⁻⁹)?
From the calculation and data available in the question, the pH of the solution is 2.8 .
What is Kb?The term Kb is used to refer to the base dissociation constant of a solution. Here we have the Kb as 1.7 × 10⁻⁹ but;
Ka = Kw/Kb = 1 * 10^-14/1.7 × 10⁻⁹ = 5.9 * 10^-6
We have to set up the ICE table as follows;
C5H5NH^+(aq) + H2O(l) <-----> C5H5NH(aq) + H3O^+(aq)
I 0.420 0 0
C -x +x +x
E 0.420 - x x x
Ka = [ C5H5NH] [H3O^+]/[C5H5NH^+]
5.9 * 10^-6 = x^2/ 0.420 - x
5.9 * 10^-6 (0.420 - x ) = x^2
2.478 * 10^-6 - 5.9 * 10^-6x = x^2
x^2 + 5.9 * 10^-6x - 2.478 * 10^-6 = 0
x=0.00157 M
Since;
[ C5H5NH] = [H3O^+] = x = 0.00157 M
pH = -log(0.00157 M)
pH = 2.8
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Describe how vacation stress may negatively affect your family life
What is the maximum area of a right triangle with hypotenuse 10 a 24 b 25 c 25
Answer:
24 is the maximum area of a right triangle
Big ideas math integrated mathematics iii solutions
The Big Ideas Math: A Bridge to Success Student Edition features several components to help position students for success, and keep them on the right track for mathematical proficiency. The Big Ideas Math Student Edition provides students with diverse opportunities to develop problem-solving and communication skills through deductive reasoning and exploration. Students gain a deeper understanding of math concepts by narrowing their focus to fewer topics at each grade level. Students master content through inductive reasoning opportunities, engaging activities that provide deeper understanding, concise, stepped-out examples, rich, thought-provoking exercises, and a continual building on what has previously been taught.
Which conclusion does this excerpt best support? decius will entertain caesar with stories to keep him home. Just as cassius fears, caesar will not come to the capitol. The bad weather will make caesar decide to stay at home. Decius strongly believes that he can get caesar to go to the capitol
Answer:
d
Explanation:
The conclusion that can be best supported by the excerpt is as follows:
Decius strongly believes that he can get caesar to go to the capitol.Thus, the correct option for this question is D.
What is the significance of the conclusion?The significance of the conclusion may have been understood by the fact that it overall describes the complete literary work like a play, poem, drama, etc. in a very concise word limit. It makes the reader to understand all the facts and attributes of the literature in a very short period of time.
Although Decius absolutely knows that Caesar is very evocative lately and he may not want to depart from the position because he feels fear, he says he can persuade him. But Caesar loves to hear Decius talk about the flatterers, and he is sure that with his words he can bring Caesar to the Capitol.
Therefore, the correct option for this question is D.
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After reviewing the results of a math test, the teacher tells the class that those students who completed their review worksheets scored an average of 10 points higher on the test than those students who did not complete their review worksheets. Which of the following best describes how the teacher likely came to this conclusion?
The option that best describes how the teacher likely came to this conclusion is that:
The teacher conducted an observational study by comparing the performance on the test of those who completed their review worksheets to those who did not complete their review worksheets.What is observational study?An observational study is known to be a kind of study where a researcher do observes the subjects without having any form of interference with them.
Here, the researcher is said to have no control over any of the treatments that is used on the subjects. All the have to do is observe and record their findings.
See options below
A. The teacher conducted an observational study by comparing the performance on the test of those who completed their review worksheets to those who did not complete their review worksheets.
B. The teacher conducted a sample survey by asking students if they completed their review worksheets and if they think they did well on the test.
C. The teacher performed a controlled experiment in which one group of students decided not to complete their review worksheets and the other group decided to complete their review worksheets.
D. The teacher performed a random experiment in which the test scores of one group of students would be higher and the test scores of the other group would be lower.
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What right did women in the united states win by 1930? the right to work the right to vote the right to join the military the right to run for office
Answer: B! The right to vote!
Explanation:
just took test 100%
By 1930, women in the United States had won the right to work, which meant they were legally permitted to work outside the home.
What is right to work?The term "right-to-work laws" refers to state laws in the United States that prohibit union security agreements between employers and labor unions that require employees.
By 1930, women in the United States had won the right to work, which meant they were legally permitted to work outside the home.
The right to vote, however, had already been secured with the ratification of the 19th Amendment to the United States Constitution in 1920.
Women were also allowed to join the military in 1948 and to run for office in 1916, though it took many more years for women to break down gender barriers in politics and achieve high-level political leadership roles.
Thus, the answer is right to work.
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A 20 kg box rests on a table. What force does the earth exert on the box?
Answer:
The normal force acting on the body is equal to its weight, hence;
N = W = 196N
The normal force that the 20.0-kg box exerts on the 10.0-kg box is 98N
The formula for calculating the weight of an object is expressed as:
W = mg
m is the mass of the object
g is the acceleration due to gravity.
Given the following parameters
Mass of the box = 20.0kg
a) The weight of the box = 20 * 9.8
Weight of the box = 196N
Hence the weight of the box is 196N
Note that the normal force acting on the body is equal to its weight, hence;
N = W = 196N
b) if a 10.0-kg box is placed on top of the 20.0-kg box, the total mass will be;
M = 10 + 20 = 30kg
total weight = 30 * 9.8
Total weight = 294N
Since the normal force is equal to the weight, hence W = N = 294N
Weight of the 10kg box = 10 * 9.8 = 98N
Since the 10kg box is on top of the 20kg box, hence the normal force that the 20.0-kg box exerts on the 10.0-kg box is 98N
Explanation:
Use the drop-down menu to answer each question. Which of these countries was not a communist country in 1991? which country had the largest increase in per capita income between 1996 and 2012?
Answer:
Italy, Czech republic
Explanation:
Answer: c and b
Explanation:
Niranjan has installed a new cpu in his computer, but nothing happens when he pushes the power button on the case. the led on the motherboard is lit up, so he knows the system has power. what could the problem be?
The most likely reason why the computer didn't come up is because Niranjan forgot to apply thermal paste between the CPU and the heat-sink and fan assembly.
What is a computer?A computer can be defined as an electronic device that is designed and developed to receive data in its raw form as an input and processes these data into an output (information) that could be used by an end user.
The components of a computer.Basically, the components of a computer system are classified as follows:
MotherboardCentral processing unit (CPU)Output InputIn Computer technology, it is very important for computer technicians to apply thermal paste between the central processing unit (CPU) and the heat-sink and fan assembly, in order to eliminate air gaps from the area and maximize heat transfer and dissipation.
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What is the common difference of the following sequence 16 19 22 25
Answer:
You add 3
Explanation:
16+3=19
19+3=22
22+3=5.
What is a likely consequence of a mutation that prevents apoptosis
Answer:
Look below
Explanation:
If apostolic is for some reason prevented, it can lead to uncontrolled cell division and the subsequent development of a tumor.
When water changes phase, it gains or loses energy. During which of the following types of phase changes do the particles of water gain energy?
Answer:
When water melts, particles absorb heat and vibrate vigorously,and when water boils/evaporates,the particles also absorb heat,hence gaining energy and change into another state.
When the author quotes the video game researcher who said, it's difficult to find kids who earn poor grades but who do well in video games, the author is using a) hyperbole. B) a testimonial. C) an emotional appeal. D) statistical argument
The author who quotes the video game researcher is using statistical argument.
What is statistical argument?Statistical argument is an argument based on facts and figures from a research. This kind of argument requires the researcher to get values in order to make judgement.
Children who earn poor grades in school do well in playing video games. This is because, the researcher has found out how low they perform in class in terms of their test score and has used this as a measure to determine how poor they play video games.
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2 factors that contribute to a detrimental relationship
Answer:
TWO factors that contribute to a detrimental relationship are:
1.Aggressive Behavior- It can create physical and emotional harm because it changes from verbal abuse and it normally leads to physical impairment. It should be prevented in a relationship because it usually originates harming not.
2. Being Violent- This concentrates more on the physical part of the person in the relationship. Once one of the partners starts to physically hurt his or her partner this can provide a startling association between the two.
Explanation:
HOPE THIS HELPS<3 HAVE A NICE DAY
A mixture of sodium hydroxide, naoh(s) and benzoic acid, hc7h5o2(s), consists of a total of 0. 50 moles. This mixture is dissolved in 1. 0 l of water and the ph of the resulting solution is determined to be 12. 52. Find the mole fraction of benzoic acid in the initial mixture
With a resulting solution of 12.52 and 1 m.l of water, the mole fraction of Benzoic acid that is in this mixture is 0.4669
How to solve for the mole fraction of Benzoic acidpH = 12.52
pOH = 14 - 12.52
= 1.48
OH⁻ = [tex]10^-^1^.^4^8[/tex]
= 0.0331
The concentration of excess ionsThe total number of excess OH⁻ that is required to make salt
= 0.5 - 0.0331
= 0.4669
H+ = 0.4669/2
= 0.2334
The mole fraction of Benzoic acid that would be here would be gotten by:
0.2334/0.5 = 0.4669
We conclude that the mole of Benzoic acid would be 0.4669 moles.
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Which oxidizing agent will oxidize br− but not cl− ?
A particular computer on your network is a member of several gpos. gpo-a has precedence set to 1. gpo-b has precedence set to 2, and gpo-c has precedence set to 3. according to the given levels of precedence, what will be the resultant set of policy (rsop) for this machine?
In this scenario, the resultant set of policy (RSOP) for this computer system would be that: GPO-A will take precedence and overwrite any conflicting settings.
What is GPO?GPO is an acronym for Group Policy Object and it can be defined as a set of Group Policy settings of the Microsoft Windows NT operating systems that defines what a computer system should look like. Also, GPO controls user and computer account features and working environment in general.
Based on the level precedence that was set for this computer on your network, its resultant set of policy (RSOP) would be that GPO-A will take precedence and overwrite any conflicting settings from GPO-B and GPO-C.
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Introduction to the practice of statistics 9th edition answers
Answer:
Step 1 of 2
Cases are defined as objects in a set of data. Each case will have a characteristic called a variable and these can differ from case to case.
Step 2 of 2
The given spreadsheet in figure 1.1 explains different types of food menus and the items that are served under each type. In addition, the items are also displayed with regular prices and discounted prices. Thus, Smokey Grill Ribs are served to customers at the cost of 20 on regular days. However, the same item is served to the customers at a lower price during discount days. The discounted rate of the item is 11.
Explanation:
..
How does shakespeare use the motif of morning? to show the certainty of fate to demonstrate growth and maturity to highlight the beauty of life to show the challenges of survival
Answer:
A. To show the certainty of fate.
Explanation:
took the test
A component of survival analysis is survival rate. It is the percentage of research or treatment group members who are still alive after a certain amount of time has passed from diagnosis.
What is Growth?It is a technique for describing prognosis in some illness states and can be applied to the evaluation of therapeutic standards. In most cases, the diagnosis date or treatment start date is used to calculate the survival duration.
The population as a whole is used to calculate survival rates, which means that an individual cannot be directly affected.
There are other categories of survival rates, which are covered here. They frequently serve as clinical trial endpoints, and they shouldn't be confused with death rates, a population statistic.
Therefore, A component of survival analysis is survival rate. It is the percentage of research or treatment group members who are still alive after a certain amount of time has passed from diagnosis.
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A fourth as much as the product of two-thirds and 0. 8
Answer:
Simplify the expression.
Exact Form:
16
-----
3
Decimal Form:
5.
¯
3
Mixed Number Form:
5 and one 3rd
T.
Explanation:
Can you electroplate a wooden article with a metal? why or why not?
Answer:
No
Explanation:
you cant this is because wooden materials dont have dipoles in their domains
7. a vinegar solution of unknown concentration was prepared by diluting 10.00 ml of vinegar to a total volume of 50.00 ml with deionized water. a 25.00-ml sample of the diluted vinegar solution required 20.24 ml of 0.1073 m naoh to reach the equivalence point in the titration. calculate the concentration of acetic acid (in m) in the original vinegar solution (i.e., before dilution).
10.00 mL of 0.4344 M vinegar solution is diluted to 50.00 mL. Then, 25.00 mL required 20.24 mL of 0.1073 M NaOH to reach the equivalence point.
What is titration?Titration is the slow addition of one solution of a known concentration (called a titrant) to a known volume of another solution of unknown concentration until the reaction reaches neutralization, which is often indicated by a color change. In a broad sense, titration is a technique to determine the concentration of an unknown solution.
Step 1: Write the balanced neutralization equation.NaOH + CH₃COOH = NaCH₃COO + H₂O
Step 2: Calculate the concentration of acetic acid that reacted with NaOH.20.24 mL (Vb) of 0.1073 M (Cb) NaOH react with 25.00 mL (Va) of acetic acid of unknown concentration (Ca). We can calculate the concentration of the acid using the following expression.
Ca × Va = Cb × Vb
Ca = Cb × Vb / Va
Ca = 0.1073 M × 20.24 mL / 25.00 mL = 0.08687 M
Step 3: Calculate the initial concentration of acetic acid.10.00 mL (V1) of acetic acid of unknown concentration (C1) is diluted to 50.00 mL (V2) of 0.08687 M (C2) acetic acid. We can calculate the initial concentration using the dilution rule.
C1 × V1 = C2 × V2
C1 = C2 × V2 / V1
C1 = 0.08687 M × 50.00 mL / 10.00 mL = 0.4344 M
10.00 mL of 0.4344 M vinegar solution is diluted to 50.00 mL. Then, 25.00 mL required 20.24 mL of 0.1073 M NaOH to reach the equivalence point.
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A rectangular prism has a length of 9 in. , a width of 4 in. , and a height of 112 in. The prism is filled with cubes that have edge lengths of 12 in. How many cubes are needed to fill the rectangular prism? enter your answer in the box. To fill the rectangular prism, cubes are needed
Answer: The answer is 432
Explanation: I did the test on K12
Jhope gives you hope and luck
Answer:
432
Explanation:
I took the K12 Unit 4.10 Test
What does the phrase "on the square" mean as it is used in paragraph 23?
The phrase “on the square” as it is used in paragraph 23 of the given text means; honest; straightforward.
What is the meaning of the Phrase?Phrases like "on the square" can best be understood by reading the given passage. After reading the given passage, it is discovered that the context that provides the intended meaning is honest and straightforward.
Finally, it should be noted that where the context is missing, the result of understanding phrases becomes a mere guesswork.
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Big ideas math: algebra 2 a common core curriculum solutions
A conditional statement, symbolized by p → q, can be written as an “if-then
statement” in which p is the hypothesis and q is the conclusion. Here is an example.
hypothesis, conclusion,
If a polygon is a triangle, then the sum of its angle measures is 180 .
p q
°
You are looking at comparable houses with the same asking prices in neighboring towns. The mill rate in the first town is 20 mills. The mill rate in the second town is 37 mills. Both houses are assessed at $175,000. Mill rate is the tax rate that is applied to the assessed value of a real estate property by a municipality. Your tax is calculated by multiplying the mill rate by the assessed value of a property and dividing by 1,000. What is the dollar difference in annual property taxes based on mill rate between the two towns?
The dollar difference in annual property taxes based on mill rate between the two towns is $2,975.
Dollar difference in annual property taxesFirst step is to calculate for first town
First town=Mill rate÷1,000×Property assessed value
First town=20 mills÷1000×$175,000
First town=$3,500
Second step is to calculate for second town
Second town=Mill rate÷1,000×Property assessed value
Second town=37mills÷1000×$175,000
Second town=$6,475
Third step is to calulate the difference
Difference=$6,475-$3,500
Difference=$2,975
Inconclusion the dollar difference in annual property taxes based on mill rate between the two towns is $2,975.
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According to the text what is one similarity between professional and casual gamers
Dedication of time in the improvement of their skill is the similarity between professional and casual gamers.
Who is a Gamer?An individual with a strong interest or skill in computers, technology and interactive games.
Gamers whether they are professional or casual dedicate time to improve their skills so as to ensure they win when playing with others or alone.
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