The kinetic energy of the two-block system with the given masses before the collision is determined as ³/₂Mvs².
Kinetic energy of the blocks before collisionThe kinetic energy of the blocks before the collision is calculated as follows;
For a negligible friction effect, the kinetic energy of the two - block system after the collision is equal to the kinetic energy before the collision.
K.E(initial) = K.E(after)
K(after) = ¹/₂(m₁ + m₂)vs²
K(after) = ¹/₂(m + 2m)vs²
K(after) = ¹/₂(3m)vs²
[tex]K.E(after) = \frac{3}{2} Mv_s^2[/tex]
Thus, the kinetic energy of the two-block system with the given masses before the collision is determined as ³/₂Mvs².
The complete question is below:
block x of mass m slides across a horizontal surface where friction is negligible. block x collides with block y of mass 2m that is initially at rest, as shown in figure 1. after the collision, both blocks slide together with a speed vs , as shown in figure 2.
What is the kinetic energy of the two-block system before the collision?
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Frozen water is less dense than liquid water, allowing lake organisms to survive winter. true false
False, frozen water is denser than liquid water and does not allow lake organisms to survive water.
Density of Frozen water and Liquid waterBy definition, density is the mass per unit volume of a substance, a property which is characteristic to each substance.
By convention, solid state of a substance are said to be denser than liquid state of the same substance. Hence, it follows that frozen water is denser than liquid water and does not allow lake organisms to survive.
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Answer:
True
Explanation:
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In the electrolysis of a molten mixture of rbcl and kbr. identify the product that forms at the negative electrode and at the positive electrode.
The product that are formed at the negatively charged electrode (cathode) and at the positively charged electrode (anode)
Strontium at cathode.Chlorine at anode.What is electrolysis?Electrolysis can be defined as the chemical decomposition of a chemical compound or substance into their respective elements by passing direct electric current through them in a solution (liquid) containing ions.
In the electrolysis of a molten mixture of rubidium chloride (RbCl) and Potassium bromide (KBr), the product that are formed at the negatively charged electrode (cathode) and at the positively charged electrode (anode)
Strontium at cathode.Chlorine at anode.Read more on ions here: https://brainly.com/question/11638999
What is the first step in the talk method of conflict resolution?
Answer:
Communication is the first step.
Explanation:
A croissant shop has plain croissants cherry croissants chocolate croissants almond croissants apple
Answer:
What Is a Mutual Savings Bank (MSB)?
A mutual savings bank is a type of thrift institution originally designed to serve low-income individuals. Historically, these individuals invested in long-term, fixed-rate assets, such as mortgages.
Explanation:
In a typical automotive engine the piston contains
Answer:
two compression rings
Explanation:
yolo
18.1 multiplying polynomial expressions by monomials
The act of Multiplying a polynomial by a monomial is an easy one. An example of this is given as Multiply x – y – z by -8x².
What are Polynomial Expressions?Polynomials are regarded as the sums of specific terms of a given form k⋅xⁿ. Here, the k stand for any number and n stand for a positive integer.
To Multiply x – y – z by -8x².
One has to first Multiply each term of the polynomial x – y – z by making use of the monomial -8x².
⟹ -8x² * (x – y – z)
= (-8x² * x) – (-8x² * y) – (-8x² * z)
Note that the * sign connote multiplication.
The next step is to add the like terms together;
The answer therefore is = -8x³ + 8x²y + 8x²z
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What is the temperature of 12.20 mol of gas in a 18.35 l tank at 16.40 atm?
The temperature of the given mole and pressure of gas is 300.6K.
Given the data in the question;
Amount of gas; [tex]n = 12.20mol[/tex]Volume of gas; [tex]V = 18.35L[/tex]Pressure; [tex]P = 16.40atm[/tex]Temperature; [tex]T = \ ?[/tex]
The Ideal Gas LawThe Ideal gas law or general gas equation emphasizes on the state or behavior of a hypothetical ideal gas. It states that pressure multiplied by volume is equal to moles multiply by the universal gas constant multiply by temperature. It is expressed;
[tex]PV = nRT[/tex]
Where P is pressure, V is volume, n is the amount of substance, T is temperature and R is the ideal gas constant ( [tex]0.08206Latm/molK[/tex] 0
The determine the temperature of the gas, we substitute our given values inro the equation above.
[tex]PV = nRT\\\\T = \frac{PV}{nR}\\ \\T = \frac{16.40atm\ *\ 18.35L }{12.20mol\ * \ 0.08206Latm/molK} \\\\T = \frac{300.94Latm}{1.001132molLatm/molK} \\\\T = 300.6K[/tex]
Therefore, the temperature of the given mole and pressure of gas is 300.6K.
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A bag contains 6 red marbles, 4 blue marbles, 7 green marbles, and 3 yellow marbles
Answer:
20 marbles
Explanation:
6 red marbles
4 blue marbles
7 green marbles
3 yellow marbles
6+4+7+3=20Should the west asian include art in their religion
A female giraffe has 62 chromosomes in each of her skin cells how many chromosomes will be in the skin cells of her offspring
The number of chromosomes that will be in the skin cells of each of her offspring is; 62
What is the number of chromosomes in the offspring?
Male and female animals differ in the number of se x chromosomes they have. A male animal carries one X chromosome which is received from his mother as well as one Y chromosome which is received from his father. However, a female animal carries two copies of the X chromosome which is one from each parent.
Now, we are told that the female giraffe has 62 chromosomes in each skin cell and as such it means that the offspring will also have 62 chromosomes in each skin cell.
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The element that would be the most effective at accepting electrons from another reagent is
Answer:
Matching the elements to the appropriate blanks as follows :
1) The element that would most effective at accepting electrons is ; CI
2) The element that would be the best insulator is ; Cl
3) The element best to form an ionic compound with sulfur is ; Rb
The acceptance of electrons by elements depends on the electronegativity of the element. from the options listed the element with the highest level of electronegativity is Cl ( chlorine ) therefore it the most effective at accepting electrons
Cl ( chlorine) is a non metal and non-metals are semi-conductors or insulators. therefore Cl would act as the best insulator when compared to other elements.
when metals react with non-metals they form an ionic compound. for sulfur the best metal to react with it is Rb ( soft silvery metal ) and the reaction of Rb and sulfur in hydrogen gas. results in Rb₂S₅
Hence we can conclude Matching the elements to the appropriate blanks as follows : The element that would most effective at accepting electrons is ; CI, The element that would be the best insulator is Cl ,The element best to form an ionic compound with sulfur is ; Rb
Explanation:
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What do we have to do to the conversion factor if we are dealing with units that measure area?
You would cube it so if theres a cube it answer than use that
The conversion factor to the units of the measure of area is squared. Thus, option D is correct.
What is a conversion factor?A conversion factor is given as the number that enables the changing of one set of units to another with the help of mathematical operations such as division or multiplication.
The area can be given as the region that is found bounded within the shape. The unit of area has been measured in square units. Thereby the conversion factor dealing with the area made to be squared. Thus, option D is correct.
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Which condition feeds a tropical storm as it develops into a hurricane?
Answer:
heat and moisture
Explanation:
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based on the information provided in figure 1 and figure 2, which of the following best predicts the effects of a mutation in the promoter of the tyr gene that prevents it from being transcribed?
Based on the information provided in figure 1 and figure 2, Skin pigmentation will not be altered, leading to a negative selection pressure.
What is the figure about?The Figure shows the making of α-MSH in keratinocytes as a result of UV radiation.
The option that effects of a mutation in the promoter of the tyr gene that prevents it from being transcribed is that Skin pigmentation will not be altered, leading to a negative selection pressure.
Conclusively, in Figure 1, TYRTYR is needed for the steps in the melanin synthesis pathway but when it was not shown properly, it hinders melanocytes from synthesizing melanin even if there was an exposure to UVUV radiation. This would therefore leads to a negative selection pressure.
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Rachel, adam, michelle, hannah, and james are going to the movies. They have $65 to spend on tickets and snacks. Each movie ticket costs $9. 50, and each snack item costs $4. 50. How many snacks can they buy to split among them? this problem is modeled by the inequality 5(9. 5) + 4. 5x ≤ 65, which is equal to 47. 5 + 4. 5x ≤ 65. The first step in solving the inequality is to. The second step is to. The five friends will have to split snacks
Answer:
The first step in solving the inequality is to
✔ subtract 47.5 from both sides
.The second step is to
✔ divide both sides by 4.5
.The five friends will have to split
✔ 3
snacks.
Explanation:
A college degree is associated with a higher income on average, so it makes sense to look at educational attainment when thinking about gender wage inequality. as your textbook notes, women’s college enrollment
Women’s college enrollment was has always been higher than men's, with the exception of the 1920s.
What is the reason of women's college?The reason of women's colleges was so that women, who have not been allowed to go to colleges and universities back in the 1800s were then given an opportunity.
Women are known to have access to high-quality post secondary education in this modern day than when compared to the 1800s.
See full question below
A college degree is associated with a higher income on average, so it makes sense to look at educational attainment when thinking about gender wage inequality. Women's college enrollment:______a. has always been higher than men's, with the exception of the 1920s. b. was lower than men's in the 1970s, but has been higher than men's since the 1980s. c. has been just about the same as men's since the 1960s. d. was lower than men's in the 1950s, but has been the same as men's since the 1970s.
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What is the appropriate sequence of events for protein synthesis?
Answer:
transcription and translation.
Explanation:
Protein synthesis is the process in which cells make proteins. It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus.
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have an awesome day -TJ :)
Use the square root property to solve each equation, if possible.
Answer:
To solve an equation by using the square root property, you will first isolate the term that contains the squared variable. You can then take the square root of both sides and solve for the variable. Make sure to write the final answer in simplified form.
China’s government discourages population growth through all of the following measures except __________. A. Subsidizing daycare for large families b. Fining couples with more than one child c. Offering maternity leave to one-child families d. Requiring that all couples in urban areas have only one child please select the best answer from the choices provided. A b c d
Answer:
the answer is A, for edge.
Explanation:
8-1 find a place to live financial algebra answers
An example of 8-1 financial algebra question is in stock market, what does the term Perspiration implies.
The term perspirations connote sweating or hard work.
What does financial algebra implies?The term Financial Algebra is known to be a type of course that is designed for student so as to have a good foundation in logical thinking and problem solving that will help them to make good decisions regarding money and finance.
The term perspirations connote sweating or hard work and as such, using the stock market definition, it implies that one being a genius is not just all about having good ideas, but it entails working hard and also having good idea along with it.
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Math accelerated chapter 8 equations and inequalities answer key
In math equations and inequalities, they are said to be both mathematical sentences that is created to link two expressions such as the use of symbol >, <, ≤ or ≥. when two items are in a state of inequality.
What is equation and inequality?An equation is known to be a type of mathematical statement that depicts the equal state of two expressions. It is often depicted with the symbol = which shows equality.
While an inequality is known to be a mathematical statement that shows that two given expression is said to lesser than or more than one another.
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When making smart food choices, what question should be asked before deciding to eat at a restaurant?
Answer:
Are the available choices in my nutritional goals
Explanation:
Smart food decisions are required for maintaining your body healthy especially when your following a diet and have a goal.
If two organisms have similar traits of dna they are probably
Answer:
they probably share a common ancestor
correctly label the following components of the kidney.
The correct labelling of the components of the kidney is;
From left top:
Renal artery and veinHilumKidneyFibrous capsulePerirenal fat capsuleRight:
UreterRenal fasciaWhat is a kidney?This is an organ in the body that filters the blood and produces urine.
The Functions Of The KidneysTo Extract Waste From Blood, To balance Body Fluids, To form UrineTo aid In Other Important Functions Of The BodyLearn more about kidneys:
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You work every saturday from 9:00 a.m. to 5:00 p.m. find the measure of the angle generated by the hour hand of a clock during this time in both degrees and radians. compare this angle with the angle generated by the minute hand from 9:00 a.m. to 5:00 p.m.
The angle generated by the hour hand measures -270° or -4.71 radians, and we will see that the angle generated by the minute hand is 12 times the one generated by the hour hand.
How to get the angle generated?Remember that in a complete rotation we have an angle of 360°, and in a complete rotation we have 12 hours, then there is a relation:
12 hours = 360°
1 hour = 360°/12 = 30°
From 9:00 a.m to 5:00 p.m. there are 9 hours, so the angle that the hour hand does is:
A = 9*(30°) = -270°
(the negative sign is because this angle is measured clockwise)
Now we can write this in radians, remember that:
3.14 radians = 180°
Then:
1 = (3.14 rad/180°)
Then:
270° = -270°*(3.14 rad/180°) = -4.71 rad
What is the angle generated by the minute hand?Each hour that passes, the minute hand does a complete revolution. Then in 9 hours, the minute hand does an angle of:
A = 9*(-360°) = -3,240°
To compare this angle to the one generated by the minute hand we take the quotient:
-3,240°/-270° = 12
So this angle generated by the minute hand is 12 times the one generated by the hour hand.
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In "a worn path," phoenix jackson ultimately shows herself to be someone whose actions are all done out of __________. question 1 options: selfishness and bitterness dedication and love confusion and anger confidence and faith
Answer:
dedication and love
Explanation:
In "a worn path," phoenix jackson ultimately shows herself to be someone whose actions are all done out of Dedication and Love.
What is Phoenix jackson?
Phoenix Jackson is a courageous, crafty, and lovable elderly woman. The 1940s are the setting for "A Worn Way," and Phoenix makes several references to her age. She was raised under slavery and experienced both Reconstruction and the Civil War.
The story takes place when she is an elderly woman residing in the Deep South during the Jim Crow era, a set of laws designed to keep Black people segregated and powerless following slavery.
Phoenix has through and witnessed during her life, her arduous quest to obtain medication for her grandson is a reflection of the numerous challenges she has encountered and overcame.
Therefore, In "a worn path," phoenix jackson ultimately shows herself to be someone whose actions are all done out of Dedication and Love.
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Altering photographs was part of joseph stalin’s effort to promote democracy. Censor the communist party. Persecute visual artists. Change historical facts
Altering photographs was part of Joseph Stalin's effort to Change historical facts.
Can historical facts be altered?There are a lot of cases where familiar history seems to be changed or altered.
The act of revisiting often changes the interpretations in a lot of ways by historians and as such, altering photographs was a means used by Joseph Stalin's effort to change of historical facts.
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Answer:
D. change historical facts
Explanation:
got it right
Using specific details from the lesson and the assignment: write a short paragraph comparing the us point of view and castro’s point of view on the events surrounding the cuban revolution
Answer:
According to Castro, the territory of Latin America is suffering from countries like the United States using their imperialistic powers. According to Castro, countries such as the United States take advantage of Latin American countries. Kennedy and other US leaders believe that Castro has created a dictatorship. The people of Cuba are suffering because Castro and communism oppress people politically and economically.
Explanation:
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An executor should be willing and reliable because brainly
The reason why the executor should be reliable is because; such a person is dealing with a very delicate thing that loss could be devastating.
What is the role of an executor?An executor is simply a person named in a will whose job it is to sort out the estate of the person who has died. The estate includes everything owned such as money, property and possessions.
Before appointing someone as an executor, it is very vital to carry out a background checks to ensure that the person has not been found guilty of fraud, theft or unethical practices in the past. This is because the person must have integrity to carry out this role.
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Answer:
need to be trusted to carry out will instruction
Explanation:
4-4 skills practice parallel and perpendicular lines
An example of parallel and perpendicular lines are the steps walk of a straight ladder, the opposite sides of a rectangle.
How do you find parallel and perpendicular lines?When there are two non vertical lines that are in found to be in the same plane such as the same slope, then a person can say that the lines are parallel.
But when two non-vertical lines in that are same to be of the same plane intersect at a right angle one can therefore say that they are perpendicular lines.
An example is "write an equation in slope-intercept form for the line that passes through the given point and is parallel to the graph of the given equation". The equation that fits the graph (attached) is y = 2x + 1.
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