# Posts by ANON

Total # Posts: 2,957

Chemistry
So;Arrange the following species in order of decre asing S-O bond strength (strongest first, weakest last). SO, SO 3 2– , SO 3 , SO 2 I got SO2, sO32-, SO3, SO. Any ideas

Physics
A force is applied to a 22.5 kg object causing it to move at a constant velocity of 4.2 m/s with a coefficient of friction of 0.44. Suddenly, the applied force is removed, causing friction to be the only force acting on the object. How long will it take the object to come to ...

History
which economic impact did the crusades have on medieval europe?

Math Unit 3
1. Complete the paragraph proof Given: ?A and ?B are complementary, and ?B and ?C are complementary Prove: ?A ? ?C By definition of complementary angles, m?A + _____ = 90° and m?B + m?C+ _______. Then, m?A + m?B = m?B + m?C by the _____________________________. Subtract m?...

Physics
A force is applied to a 22.5 kg object causing it to move at a constant velocity of 4.2 m/s with a coefficient of friction of 0.44. Suddenly, the applied force is removed, causing friction to be the only force acting on the object. How long will it take the object to come to ...

Science
Oh, okay. I get it. Thanks for the help Writeacher and Damon! :-)

Science
okay i see what you're saying. i'm going to go with b. that is my best guess

Science
To create less waste in the first place is to a. reduce (?) b. reuse (?) c. recycle d. incinerate Hi. So, for this question, i completely understand what it's asking but i can't figure out which one it would be. Incinerate means to burn waste, but that wouldn't ...

algebra
x = speed x <= 25 Since the MAXIMUM speed is 25mph, the speed would have to be LESS than or EQUAL to 25mph. You cannot go over the speed limit (25mph), which is why we are using the "LESS than or EQUAL to" sign

maths
from a standard deck of cards, 3 cards are selected. what is the probability that 2 are diamond and 1 are clubs? i got (13C2)(13C1) = (78)(13) = 1014 but its not on my multiple choice answers A) 1/2600 B 39/850 C 11/850 D 1/22100

Physics
So if the acceleration was 60000 and I wanted to solve how many hours this would take I would: a=(60000-0)/3600 Which is 16.2 hours? I’m alittle confused as this is how someone has shown me but I don’t understand why the time taken would be a (acceleration) rather ...

Physics
Hello, If I need to find out how long it takes for an object acted on by a force takes to change speed by 1.0m/s^-1 and I know the magnitude of the force can I use the following equation? a=v2-v1/t in order to establish the time taken?

Physics
An object is suspended from the ceiling using a piece of string. The string is attached through a spring scale with a reading of 45N. What is the mass of the object hanging from the string?

Force, Gravity, Resultant Force, Vectors
Can someone just have a quick look over this question and my current answers and tell me if there are any massive mistakes im making. I feel confident with what ive done but just need a little boost. Question: An asteroid of mass m =7 .5×10^12 kg has two rocket thrusters...

Ancient Greece
How did ancient greek philosophers such as Plato and Aristotle contribute to the formation of modern democratic governments? a. by contemplating the purpose and structure of government b. by encouraging the participation of all citizens in governance c. by prescribing civil ...

Simple harmonic motion
The midpoint of a guitar string executes simple harmonic motion with motion following the form x(t) = A sin(?t + ?). Amplitude (A)=1.60mm, Angular Velocity (w)=2760 and phase constant (o) = pi/2. How do I find the initial displacement, velocity and acceleration of the midpoint...

simple harmonic motion
Quick question: I need to find the acceleration, velocity and displacement at the mid point of SMH. So I know these are the equations: x(t) = Asin(?t + ?) vx(t) = A? cos(?t + ?) ax(t) = ?A?2 sin(?t + ?) I assume that the displacement is greatest when v=0. So I know ?=2760 A=1....

Projectile motion
Aha. The landing point is 10m higher than the take off point. So this would make sense.

Projectile motion
So I want to find the speed an object hits the ground. I have the initial speed 45ms, the angle 50degrees and its time in flight 6.7s. So the final speed before impact should be: (45ms)sin(50)-9.81(6.7)=-31.25...ms Does this seem correct. In my head I was expecting that the ...

Physical Science
You have a sealed glass jar full of air. If you put it in the freezer, what happens to the gas pressure in the jar??

Maths, Physics, Resultant force
Thanks Steve I assumed as much but just wanted to be sure.

Maths, Physics, Resultant force
Hi all, I have been given component x- and y- for F1=(8.0*10^7N,7.0*10^7N) F2=(4.0*10^7N,-2.0*10^7N) for an object. Which following my textbooks have found the following vector components: F1+F2=(1.2*10^8N,5.0*10^7N) Now I want to find the distance from earth that this object ...

Math
can u teach the class besides just reading the slides or nah lmk

Math
Neil, you're a savage.

Earth Science
What would be the strongest gravitational force if an astronaut is between Earth and the Moon?

Maths, Physics, Resultant force
Hi all, I have been given component x- and y- for F1=(8.0*10^7N,7.0*10^7N) F2=(4.0*10^7N,-2.0*10^7N) for an object. Which following my textbooks have found the following vector components: F1+F2=(1.2*10^8N,5.0*10^7N) Now I want to find the distance from earth that this object ...

Spanish
Muchas gracias!

Spanish
Ms. Sue?

Spanish
I would appreciate it if someone could check my answers immediately please!!!!!!! I don't need answers, I just need someone to see if mine are correct. 1. Translate the following into Spanish: "Where is the door?" A-Dónde es la puerta? B-Dónde est&...

Geometry
What is the length of the hypotenuse of a right triangle with legs of lengths 9 in. and 40. A. 41 B. 49 C. 840.5 D. 1,681 I believe it is A, because 9^2 is 81 and 40^2 is 1681 and when you find the perfect square of that it's 41. Am I right?

Math
answer choices?

math
no problem, make sure to study how to add and subtract fractions more.

math
and yes, you need to study more on how to do math equations.

math
4 4 4 1 4 (these are all correct, checked as well)

World History
Is this a discussion? you will need to talk about 3 people from the lesson you just learned about who you feel helped the most in the modern western society.

World History
In this discussion, you will rank the three individuals from the lesson who you feel most contributed to modern Western society. You will cite two pieces of evidence from the lesson per individual to explain and support your ranking. Help meh please

World History
In this discussion, you will rank the three individuals from the lesson who you feel most contributed to modern Western society. You will cite two pieces of evidence from the lesson per individual to explain and support your ranking. Help meh please

World History
In this discussion, you will rank the three individuals from the lesson who you feel most contributed to modern Western society. You will cite two pieces of evidence from the lesson per individual to explain and support your ranking. Help meh please

Social Studies
1. C 2. A 3. B 4. B 5. A & C 6. C 7. D 8. C 9. A 10. D 11. B 12. *open ended* If you are in connexus, these are the answers to Social Studies 8 Unit 3 Lesson 4: Federlists, Antifederalists, the Bill of Rights. I just finished the quiz and recorded all the correct answers. :)

simple harmonic motion
So I have the following information: Amplitude (A)=1.60mm, Angular Velocity (w)=2760 and phase constant (o) = pi/2. and I need to find: a)the period of oscillation. b)maximum speed. c)max magnitude of acceleration. Firstly I dont want anyone to give away the answers explicitly...

Maths, velocity time graph
I am asked to draw a graph of the total distance traveled versus the total time taken for a journey between points A and B. The journey never stops but midway through its velocity remains stable for a good period of the journey. So regarding the shape of the graph I assume if ...

Math
A-Sometimes true B- always true c- sometimes true Its been a while since i've done these and I think this is correct

math unit 2
Ray BD bisects ?ABC so that m?ABD = 5y – 3 and m?CBD = 2y +12. Find the value of y. The midpoint of Line Segment AB is (2, -9). The coordinates of one endpoint are A (4, 10). Find the coordinates of endpoint B. Find the distance between points F (7, 21) and G (-5, 18) to ...

MATH unit 2
I am so confused, please help!! ?1 and ?2 are supplementary angles. m?1= 11a+19. m?2 = 6a – 9. Find m?2.

algebra 2
or is it C ???

algebra 2
Determine whether y varies directly with x. If so, find the constant of variation and write the equation. X | Y ------ 1 | -2 3 | -6 5 | -10 i think it's A ?? A. yes; k=2 and y=2x B. no C. yes; k= -2 and y= -2x D. yes; k= -1/2 and y= -1/2x

MATH
distributive

physics
a kayaker paddles across a river at 4.2 m/s at an angle of 73 degrees northeast of the shoreline behind her. The river has a current of 2.4 m/s east acting separately from the motion of the kayaker. What is the kayaker's resultant velocity?

math
Certain private water utilities in South Carolina charge a variable rate for the drinking water they provide to residences. One customer's bills over a 23-month period were used to fit a linear regression in an attempt to predict charges on future bills according to ...

english 2
Girl that's way too much for one question... 10 in 1

Physics
A real spring does not oscillate forever. Instead, it eventually comes to a stop. Does this violate the Law of Conservation of Energy? Explain why or why not.

Math
Five number summary: 4.33, 5.05, 5.44. 5.79, 6.81 mean pH: 5.43 standard deviation: 0.54 Given the proportion of observations are within 68%, 95%, and 99.7%, what is the acidity of the rainfall in pH value?

World History
7. Which north american civilizations adapted to their environment in part by farming? Choose all that apply, 2 answers. A.Haida B.Inuit C.Iroquois D.Puebloan

Time Velocity and Distance graphs
To add this is a train journey from point A to B and the train does not stop until it reaches point B.

Time Velocity and Distance graphs
Good morning, Quick question I have a question on simple motion. Ive been given a table of values from which I constructed Velocity v Time graph which is roughly the shape of a trapezium. From this I worked out the total distance covered. Now I want to make a graph of total ...

physics
A car drives down the highway at a constant speed. The speed limit increases and the car accelerates to 35 m/s in 4.5 seconds over a displacement of 100 m. What is the cars acceleration.

Algebra
Solve. x=?6x-27 +3

math
What is 0.26 written as a fraction in simplest form?

calculus
A person is jumping straight up and down on a trampoline. The height of the center of mass of the person is measured every tenth of a second. It takes just over one second to complete one full bounce. (A video of this situation is displayed above.) t (seconds) 2.90 3.00 3.10 3...

Chemistry.. am I correct?
Fill in the blanks correctly Observation - hypothesis - theory - law 1. A system of ideas or principles which are a set of organized provisions. --observation 2. An approval, suggesting evidence. --hypothesis 3. An organized perception of phenomena with the aim of studying ...

Art
a. It exemplifies the universal message about the wish for communion beyond the boundaries of our short lives. b. The subject's pose, nudity, and gaze cause the viewer to feel empathy for him c. It expresses the fracture in African-American culture and pride caused by ...

Art
All of the following are true of Meta Warrick Fuller's "Talking Skull" EXCEPT

spanish
if you greet someone who is your age how do you ask how are you in spanish?

English
What part of speech is "cogito, ergo sum"

Math!
I need help! Are these correct? 1. What is the value of 14 -a exponent2, given a= -3? A.23 B.11 C.8 D.5*** 2. Which equation represents "fifteen more than r is sixty-one"? A. r+61=15 B. r+15=61*** C. r-15=61 D. r-61=15 3. What is the value of 4 exponent 2 - 2(3×...

Englsih 10
yes, the answers are right

Science
thank you @bobpursley thanks scott, i tried using that equation but idk how to find the KE in this problem since they gave me the ME and PE

Science
@bobpursley

Science
Idk. it only told me those two numbers.

Science
Paul road his bike from the bottom of his street to his friend’s house at the top of the hill on his street. He knew his PE was 5,000 J and ME was 25,000 J but wanted to find out his KE. What is Paul’s KE energy on his bike ride to his friend’s house? Ans= 30,000?

Science Help Practice
Calculate the speed of an 90,000 kg airplane with a kinetic energy of one billion Joules. What is the mass of a car that has a kinetic energy if 4,320,000 J moving at 23 m/s? My answer to number 1= 149.07 second one- not sure. I looked up the internet for formulas on finding ...

math
In order for Mateo to walk 1000 meters in his rectangular backyard, he must walk the length 25 times or the perimeter 10 times. What is the area of his backyard in square meters? Thanks!

math
In order for Mateo to walk 1000 meters in his rectangular backyard, he must walk the length 25 times or the perimeter 10 times. What is the area of his backyard in square meters? Thanks!

math
I believe the answer is 86.19

math
if you need the answer choices I can provide them. Im stuck on how to solve

math
Find the missing value to the nearest hundredth. tan (?) = 15

English check my answers
For the following questions, identify the correct form of irregular verbs in the sentences. Choose from the word box below. A. past B. present participle C. past participle 47. Claude is getting a new computer for his birthday this year. (1 point) A B**** C 48. Yes, I have ...

Physical science CHECK my answers
6. Sound is an example of a(n) _____________ wave * Longitudinal******* Transverse Surface Electromagnetic 7. Which of the below options demonstrate reflection? * A rainbow Ripples in a pond******* An echo The tone that a plucked rubber band makes 8. Sound waves carry music ...

Physical science CHECK my answers
1. Which of the following correctly lists friction types (excluding fluid friction) from strongest to weakest? (2 points) * a. static, sliding, rolling b. sliding, static, magnetic c. weak, strong, nuclear d. rolling, sliding, static*** 2. Two or more velocities add by ...

Math
find an equation for a plane parallel to the xy-plane; does not pass through the origin. (I know how you would find the equation if it says passes through a certain point. But I'm confused how to do it if it says does not pass through certain point)

Chemistry
Oh okay. Answer: A

Chemistry
Which is a chemical change? A - splitting water into hydrogen and oxygen B - breaking a block of solid ice into smaller pieces C - freezing liquid water D - boiling water My answer: D

one english question answer check
15. A Works Cited list is a list of (1 point) sources you quoted in your research paper. sources you consulted while doing research. texts written by experts in your research subject. texts recommended by other writers on the subject. It's either A or B my answer would be ...

English answer check
so my answers above are correct?

English answer check MS. SUE SYNONYMS
OH sorry 1. subjective 2. Gamboled 3.glimmeringly 4. Fuselage

English answer check
1. Like the modernists, postmodern writers focused on subjective experience rather than objective cultural norms. (1 point) expressing or dealing with facts or conditions as perceived without distortion by personal feelings, prejudices, or interpretations***** characteristic ...

Physics
A particle of mass 100 gm is thrown vertically upwards with a velocity of 7 m/s. Air resistance is also acting on the particle according to the equation F = -0.2v^2. ( F = Force, v = velocity of the particle ). Find how much high the ball rises. Please answer it. Thanks in ...

Physical science CHECK my answers
1. What is the smallest part of all matter called? (1 point) * a. Element b. Atom*** c. Molecule d. Compound 2. Which of the subatomic particles is negative? (1 point) a. Nucleus b. Neutron c. Proton d. Electron***** 3. Who provided the first evidence that atoms contain ...

World History
wouldnt 47 be a- food output and factory production rose?

Math
Could someone help? Its on connections math test unit 6 lesson 7 14x2+4+3x-12x2-3+11x

One more question Calculus
WHy would you add 20 ft

Check american government answert
4. Individuals who want to limit the number of immigrants would most likely favor which of the following? (1 point) adoption of amnesty programs for undocumented aliens increasing the number of border patrol agents passage of the DREAM Act eliminating fines for employing ...

American Government check my answers
1. According to the excerpt, the ruling on Obergefell v. Hodges did what? Select all that apply. (2 points) extended and continued the protections of the Equal Protection Clause to same-sex couples*** applied the Fourteenth Amendment to race rendered the Elastic Clause exempt ...

American government check my answer
9. According to this excerpt, President Obama would most likely support which of the following? (1 point) laws that restrict immigration from poor countries mass deportations of all illegal immigrants regardless of age construction of a wall along the border with Mexico ...

American government check my answer
Statement 1 – Illegal immigrants who have resided in the United States for years should qualify for alternative paths to citizenship. Statement 2 – Diversity in backgrounds and experience creates a society that teaches tolerance and respect. Statement 3 – The ...

American government check my answer
Oh! I didn't even notice it was a 2 answer question thank you Ms. sue for pointing that out! so would it be a? i was stuck between a and c but just realized it was a two answer question.

American government check my answer
5. Which of the following are examples of discriminatory laws passed by the U.S. government that impacted those depicted in the photo? Select all that apply. (2 points) Chinese Exclusion Act Civil Rights Act of 1965 Immigration Quota Act DREAM Act my answer would be ...

Euclids Algorithm
Sorry this is a really stupid question. Ive been going back to basics and im a bit lost (probably tired so I cant see the obvious) so im working out 87v+38w=d ive done the basics pretty well and have d=1. Now backwards substitution is spinning my head a bit. 11=87-2*38 5=38-3*...

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