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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Select the transition that results in the greatest energy change when an excited electron relaxes to a lower state in a hydrogen atom.
n=5 to n=4 is the transition that results in the greatest energy change relaxes to a lower state.
What is Transition state?This is defined as a particular configuration along the reaction coordinate.
n=5 to n=4 is involved in a chemical reaction as the electrons can be shared.
This is the reason why it has the greatest energy change when an excited electron relaxes to a lower state in a hydrogen atom.
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Joseph was given a large box of 54 chocolates for his birthday. if he eats exactly 5 chocolates each day, how many chocolates would joseph have remaining 8 days after his birthday?
Answer:
14 chocolates
Explanation:
Joseph ate 5 chocolates each day, so after 8 days, he would have eaten 40 chocolates. so since at first he have 54 chocolates, take 54 and minus 40 and you will get 14 chocolate left
Find the lateral surface area of the triangular prism. A) 420 cm2 b) 480 cm2 c) 540 cm2 d) 620 cm2
Answer: D
Explanation:
Twelve identical point charges q are equally spaced around the circumference of a circle of radius r. the circle is centered at the origin. one of the twelve charges, which happens to be on the positive x axis, is now moved to the center of the circle.
There is only one net force acting on the charge at the center of the circle that will only be subjected to a repulsive force from the charge is extant on the negative axis of x.
What is a line charge?A line charge refers to the charge that is allocated along a curve that is one dimensional in nature such as a circle.
In physics experiments, line charges are used in wire chambers. Wire chambers are used for high-energy physics experiments.
In summary, the charges are put at equal distances around the circumference of the circle in the example.
Because the charges at the opposing ends of the circle are similar, they exert an equal-magnitude repelling force in the opposite direction on the charge at the center of the circle, thus balancing out the forces.
This is why there is only one net force acting on the charge at the center of the circle that will only be subjected to a repulsive force from the charge is extant on the negative axis of x.
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The horizontal part of a step is called the tread. the vertical part is called the riser. the recommended riser-to-tread ratio is 7 inches : 11 inches. a. find the value of x for stairs built using the recommended riser-to-tread ratio. round your answer to the nearest tenth.
The value of x for these stairs built by using the recommended riser-to-tread ratio is 32.5°.
Given the following data:
Length of riser = 7 inches.Length of tread = 11 inches.Ratio = 7:11.How to determine the value of x.In Mathematics, a tread refers to the horizontal part of a step while a riser is the vertical part of a step.
Note: Let the angle of inclination be x.
In Geometry, two (2) lines that are parallel have the same alternate interior angles. Thus, the angle of inclination between the riser and tread is given by:
[tex]Tan x = \frac{rise}{tread} \\\\Tan x = \frac{7}{11} \\\\Tan x = 0.6364\\\\x=tan^{-1}0.6364[/tex]
x = 32.5°.
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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.
You are given some ferrous iodide, fei2 , and are asked to extract the iron through electrolysis. what can be said about the merits of molten versus aqueous fei2 ?
It is impossible to extract or derive iron metal from the electrolysis of the aqueous solution provided. The option left is to carry out the electrolysis on the molten salt.
What is Electrolysis?
Electrolysis refers to the process of causing a chemical decomposition in a liquid or solution that contains ions by sending electric currents via such a solution.
Electrolysis is used primarily for:
Extraction (also known as electrowinning); orPurification (also known as electrorefining) of metals from their ore state.Learn more about Electrolysis at:
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Conjecture of which fibonacci numbers are divisible by 3
Six performers are to present their musical numbers in an auditorium. one of the performers requested to be the last act. in how many ways can the performances be arranged if the request was granted?
The numbers of ways that the performances can be arranged if the request was granted is 120 ways.
What is performances?The term performance is a term that can be countable or uncountable in nature. Note that to calculate the performance, since it is 6, one has to times from 5 to 1:
5*4*3*2*1=20*6=120
So, the request can be granted is 120 ways.
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A 10-newton object moves to the left at 1 m/s. Its kinetic energy is approximately ____ joules
Answer:
0.5
I hope this helps you
:)
The kinetic energy will be "0.5 J". To understand the calculation, check below.
Kinetic EnergyAccording to the question,
Mass or object, m = 10 N or,
= 1 kg
Speed, v = 1 m/s
We know the formula,
→ Kinetic energy, K.E = [tex]\frac{1}{2}[/tex] mv²
By substituting the values, we get
= [tex]\frac{1}{2}[/tex] × 1 × (1)²
= [tex]\frac{1}{2}[/tex] × 1 × 1
= [tex]\frac{1}{2}[/tex]
= 0.5 J
Thus the above answer is correct.
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Read this passage from when birds get flu and cows go mad! by john diconsiglio. hughes was assigned to find infected cow parts at meat processing plants in washington. he remembers the sad look on some owners’ faces when he flashed his badge. if there was a chance that any of their meat might have mad cow, they’d have to throw it all away. "the business they built from scratch was destroyed—through no fault of their own. and there was nothing they could do about it," hughes says. the tone in this passage most suggests that hughes is caring. dedicated. tense. worried.
The tone in the given passage about hughes infecting cow parts most suggests that hughes is; Caring
What is the Tone of the Passage?From the given passage, we see that hughes was assigned to find infected cow parts at meat processing plant.
Now, he noticed the sad faces of the cow owners and was deeply concerned by their sadness about how any of their meat might have mad cow.
In conclusion, we can say he was caring because of his deep concern about the hapinness of the cow owners.
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Answer:
A
Explanation:
caring
The aldol condensation involves nucleophilic attack of an enolate to a carbonyl. use the pop-up menus to identify the total number of aldol products that each of the following reactions can produce.
Answer:
Which of these is considered a long-term effect of alcohol abuse?
vomiting
slurred speech
impaired judgment
thin and brittle bones
Explanation:
Which of these is considered a long-term effect of alcohol abuse?
vomiting
slurred speech
impaired judgment
thin and brittle bones
You are playing a game where you are rolling a fair 6 sided number cube
if I'm not wrong you might be talking about the game Dice???
If there is a third-quarter moon on july 2, what is the approximate date of the next full moon? a) july 9th b) july 16th c) july 23rd d) july 30th
If there is a third-quarter moon on July 2, an approximate date for the next full moon is: A. July 9th.
What is a Moon?A Moon can be defined as the natural satellite of planet Earth that shines due to the Sun's reflected light, as it revolves around the Earth from west to east in 29½ days.
The phases of the Moon.In Astronomy, there are four (4) primary Moon phases and these are:
New MoonFirst QuarterFull MoonThird Quarter (Last Quarter)In conclusion, if there is a third-quarter moon on July 2, an approximate date for the next full moon would be July 9th because it takes 29½ days to revolve around the Earth from west to east.
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A cylinder shaped drum is used to store used motor oil. The drum has a height of 3 ft and a radius of 1. 5 ft. How many cubic feet of oil does the drum hold? use 3. 14 to approximate pi. Enter your answer as a decimal rounded to the nearest hundredth in the box. Ft³
Which would be the best source to use for a research project on the best types of soil for certain vegetables?
Answer: an interview with an agricultural specialist
Explanation:
which of the following most accurately explains an impact of burmese pythons on the everglades community in southern florida using the data provided?
An impact of Burmese pythons on the everglades community in Florida is that python predation has caused a trophic cascade that changed the mosquitoes' niche.
The impact of Burmese pythons.As a result of the predation by invasive Burmese pythons in the United States of America, the number of raccoons and white-tailed deer has decreased significantly in southern Florida.
Consequently, the mosquitoes' niche has been changed by a trophic cascade because they were forced to find alternative hosts such as cotton rats.
Based on the scientific records and information, we can deduce that an impact of Burmese pythons on the everglades community in southern Florida is that python predation has caused a trophic cascade that changed the mosquitoes' niche.
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8-1 skills practice multiplying and dividing rational expressions
To multiply or divide rational expressions, what is expected is that the 2 numerators and the 2 denominators are multiplied or divided with each other.
What is a rational expression?This is the ratio of two polynomials in mathematics. To multiply the expression it is the same as the normal multiplication done in mathematics.
The numerators first have to be multiplied together and then the same is done to the denominator.
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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:
I used brainly
Calculate the number of moles present in 1.29 x 10²⁴ molecules of hf
Answer:
According to Avogadro's number there are atoms present in one mole.
Therefore, we will calculate the number of moles present in atoms as follows.
Number of moles =
= 2.14 mol
Explanation:
Hugo plans to buy packs of baseball cards until he gets the card of his favorite player, but he only has enough money to buy at most 444 packs. suppose that each pack has probability 0.20.20, point, 2 of containing the card hugo is hoping for. let the random variable xxx be the number of packs of cards hugo buys. here is the probability distribution for xxx:
Considering the given discrete probability distribution, it is found that there is a 0.36 = 36% probability that Hugo buys fewer than 3 packs.
What is the discrete probability distribution?Researching on the internet, it is found that the discrete probability distribution for the number of packs that Hugo buys is given by:
P(X = 1) = 0.2.P(X = 2) = 0.16.P(X = 3) = 0.128.P(X = 4) = 0.512.The probability that he buys fewer than 3 packs is given by:
P(X < 3) = P(X = 1) + P(X = 2).
Hence:
P(X < 3) = P(X = 1) + P(X = 2) = 0.2 + 0.16 = 0.36.
There is a 0.36 = 36% probability that Hugo buys fewer than 3 packs.
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Answer:
0.64
Explanation:
Magnesium chloride is a salt formed with ionic bonds
In many Pacific Island nations, __________ languages have been created by speakers of two different languages, allowing them to communicate with one another.
A.
ta moko
B.
Pakehan
C.
animist
D.
pidgin
D. Pidgin
Edge 21-22
During the first half of the lunar cycle, the amount of light visible to earth gets larger and larger. During this half of the cycle, the moon is said to be:
In this half of the cycle, the moon is said to be waxing.
What is the first half of the lunar cycle?The First Quarter Moon is known to be called a Half Moon. It is called so due to the fact that the Sun's rays is said to often shines or illuminate as at 50% of the Moon's surface.
Here, Half of the Moon's surface is said to be illuminated via a direct sunlight, except in the time of the lunar eclipses when Earth is said to casts its shadow on the Moon.
See full question
During the first half of the lunar cycle, the amount of light visible to Earth gets larger and larger. During this half of the cycle, the moon is said to be:
O eclipse
O rotation
O waning
O waxing
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Answer:
it is said to be waxing
Explanation:
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
swollen ankles and legs with red blotches pictures
Swollen ankles and legs with red blotches picture is attached below.
Why are legs red and blotchy and swollen?A leg that is said to be red, swollen legs may be a sign of the issue of circulation.
Note that a lot of people with this symptoms are said to be experiencing what is known as called edema. Edema is defined as the real swelling of the ankles and the legs, that is caused as a result of venous hypertension etc.
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Which New Zealand cultural tradition is represented in the photo above?
A.
billy tea and damper
B.
the Waltzing Matilda
C.
haka
D.
Pakeha
C. haka edge 21-22
hope this helps
How might stem cell research change the future of organ transplantation
Complete the following statements with the best answer. when one is using the standard normal distribution. p(z < 0) = ___________.
In Statistics, when you are is using the standard normal distribution, P(z < 0) = 0.5.
What is a normal distribution?A normal distribution is also referred to as the Gaussian distribution and it can be defined as a probability distribution that is continuous and symmetrical on both sides of the mean, which shows that all data near the mean have a higher frequency than data that are far from the mean.
This ultimately implies that, when you are is using the standard normal distribution, P(z < 0) must be equal to 0.5 because it has a median of zero (0).
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Probability and statistics for engineers and scientists 9th
Probability and Statistics for Engineers and Scientist is known to be a 9th Edition that was written by Walpole and Mayers, Ye. It is a book that address all questions related to Probability and Statistics.
What is Probability and statistics?The term probability and statistics is known to be an aspect or a branches of mathematics that helps to depicts the different laws that monitors random events, such as the collection.
Probability and Statistics for Engineers and Scientist is known to be a well defined and explained book that can help students in the field of engineering and it is said to be trusted.
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