# Posts by AMBER

Total # Posts: 1,716

Chemistry
Which two orbitals overlap to form the sigma bond between C and H in C2HF?

Chemistry
Which of the following represents lattice energy? None of the reactions Na+(s) + I-(s) = NaI (s) Mg2+(g) + 2F-(g) = MgF2(s) LiBr(s) = Li+(s) + Br-(s) NaCl(s) = Na+ (g) + Cl-(g)

Physics
An adventurous aardvark arduously ambles from (3.0, 2.0) m to (?4.0, ?2.0) m. What is the displacement in polar coordinates?

Chemistry
So for example, if there was an electron mass of 6.24 times 10^-20 kg, moving at a velocity of 4.5 times 10^8 m/s, and we were given delta v as .01 times 10^8 m/s, the equation would be h/ (4 times pi times (6.24 times 10^-20) times (.01 times 10^8)) or do we plug in 4.5 times...

Chemistry
When using the Heisenberg uncertainty principle, and you are seeking to find delta x, and are given both the velocity and delta v, does the velocity even matter? The equation only states that h/ (4 times pi times mass times delta v) = delta x.

math ; Geomentry
Steve is a no help sceezer

10 + 2t - 4.9t² = 0 t = 1.647 s b) take the derivative and plug in 1.647 s dh/dt = 2 - 9.8 t dh/dt = 2 - 9.8 (1.647 ) = -14.14 m/s

history
I have an idea of how it is evident in the development of internal law because of the United Nations (WWII)

history
I would like to know how the tension and globalization and national sovereignty has manifested itself historically.

history
Explain how the tension between globalization and national sovereignty has manifested itself historically and how it is evident in the development of international law

Math
Thanks :)

Math
I have a report due and I have to find the dimensions of three different-sized juice cartons and Calculate the surface area of each carton. Evaluate the packaging for which conserves resources the best. Help? I have no juice cartons or anything around?

Math
Given points (0, 0) and (3, 6), find the point which partitions the segment into 3:2 Please explain?

Math
Thank you so much! I'm not good at geometry.

Math
Find the perimeter of the polygon with vertices of A(0, 0), B(4, 0) and C(2, 3). Round to the nearest tenth. Just enter one number as your answer. Help!

english
For my english project I am asked to do the following, "write a research project that is 850 words long in MLA format. My teacher asks the following, in part 2, summarize the findings of your articles and provide commentary and analysis of the information from the source...

calc
Nevermind I got the first one just 2 and three please

calc
1.A norman window is constructed by adjoining a semicircle to the top of an ordinary rectangular window find the dimensions of a Norman window of maximum area when the total permeter is 16ft. 2. A rectangle is bounded by the x axis and the semicircle y=square root 25-x^2. what...

Calc
A rectangular page is to contain 30 sqaure inches of print. The margins on each side are 1 inch. Find the dimensions of the page sucha that the least amount of paper is used. A farmer plans to fence a rectangular pasture adjacent to a river. The pasture must contain 245,000 ...

CALC
No it shows that it is f(x)= x sqauare root 4-x^2 I am so confused

CALC
can someon help me find the horzontial and verticle asymptotes for x square root 4-x^2. For HA someone told me none but I dont understand how and is the VA -2 and 2. Please help and show all work Thank you

Calc
can someone help me get the first and second derviative for X square root 4-X^2. For the first derviative I did this by using the equation F(x)g'(x)+g(x)f'(x). After using this my final answer is looking something like -X^2/(4-x^2)^1/2+ (4-x^2)^1/2 I am not sure if ...

Physics
Four 6.5-kg spheres are located at the corners of a square of side 0.70 m . Calculate the magnitude of the gravitational force exerted on one sphere by the other three. Calculate the direction of the gravitational force exerted on one sphere by the other three.

language arts

language arts
1. Part A What paragraphs provide dialogue that introduces the play's main conflict. a. paragraphs 3-4 b. paragraphs 6-7 c. paragraphs 12-13 d. paragraphs 18-19

VSU
Am influenza epidemic hits. large city and spreads at the rate of 12e^0.2t new cases per day, where t is the number of days since the epidemic began. The epidemic began 4 cases. find the number of cases during the first 30 days.

Math
Thank you so much I've been doing this one over and over. Thought that was it just wanted to make sure I was doing it right . THANKS AGAIN!

Math
THERE IS 1/2 A PAN OF BROWNIES LEFT. FOUR CHILDREN ARE GOING TO SHARE IT EQUALLY. WHAT FRACTION OF THE WHOLE PAN OF BROWNIES WILL EACH CHILD GET? 1/2÷4= OR 1/2×1/4= WHAT AM I DOING WRONG ?

Microbes and Society
In Chapter 9 of the Bible, in the book of Exodus, the sixth plague of Egypt is described in this way: “Then the Lord said to Moses and Aaron, ‘Take double handful soot from a furnace, and in the presence of Pharaoh, let Moses scatter it toward the sky. It will then ...

Chemistry
Could you show me where to start on solving this equation? The reaction in question will be carried out in a calorimeter. The volume of the chamber inside is 2.00 L. Experiment starts by evacuating the chamber to 0.00 kPa. Then oxygen gas is filled into the chamber till ...

Chemistry
Could you show me where to start on solving this equation? The reaction in question will be carried out in a calorimeter. The volume of the chamber inside is 2.00 L. Experiment starts by evacuating the chamber to 0.00 kPa. Then oxygen gas is filled into the chamber till ...

Chemistry
Could you show me where to start on solving this equation? The reaction in question will be carried out in a calorimeter. The volume of the chamber inside is 2.00 L. Experiment starts by evacuating the chamber to 0.00 kPa. Then oxygen gas is filled into the chamber till ...

Chemistry Homework
Hello! Could someone help me with this? I'm confused on what to do. Thanks!! The mole fraction of carbon dioxide (CO2) in water is 0.25. Determine the molarity of CO2. The density of the solution is 1.0 g/mL.

Alegbra
A study recently confirmed that of every 100 citizens of a certain state 40 are considered overweight . There were 288 million citizens of this state in 2001 . how many would be considered overweight

algebra
8 x + 4 = 68

algebra
I got 42

algebra
6 x, when x = 7 Evaluate

Bus. Math
Misu Sheet, owner of the Bedspread Shop, knows his customers will pay no more than \$140 for a comforter. Misu wants a 25% markup on cost instead of on selling price. What is Misu’s cost? (Round your answer to the nearest cent.)

psychology
my instructor keeps refusing my topic

psychology
I need a topic that is minimum risk and ethical that the goal is to examine the effects of the independent variable on the dependent variable

psychology
How could I could I write that in a topic

psychology
I'm needing a research topic for proposal that has minimum risk to participates and can be experimented. please help

research proposal plan
psycology

research proposal plan
psychology

research proposal plan
I need help bad I need a topic that uses to groups and has a minimum risk which can be experimented

history
During the rapid urbanization of the late-19th century, _______________________ maximized the use of urban space by housing large numbers of people in cramped, and often unsafe, conditions.   tenements      projects row houses skyscrapers

math
Write a related addition sentence 26-24=2

MATH
Vail Ski Shop received a \$1,201 invoice dated July 8 with 2/10, 1/15, n/60 terms. On July 22, Vail sent a \$485 partial payment. (If more than one discount, assume date of last discount) a. What credit should Vail receive? Credit \$ b. What is Vail’s outstanding balance? ...

History
THANKS A AND C

History
i said its A and D

History

History
which of the following were instrumental in General grants plan to end the civil war.select 2 that apply A. using generals who would obey without question***** B.engaging financial help from european allies C. destorying anything in the south that would help the confederacy D...

Ed Tech - CHECK MY ANSWERS PLEASE
Alright, thank youuu!!!

Ed Tech - CHECK MY ANSWERS PLEASE
Hm ok.. Is it D?

Ed Tech - CHECK MY ANSWERS PLEASE
I just took an Ed Tech assessment and so could someone check my answers before I turn it in? Thanks!! 1.) What did the STRICT study generally find about the effect of Internet use on sleep? A. Teens who use the Internet and phone after bedtime have a variety of sleep problems...

Social Studies
Um, IDK why people are posting answers for a pretest, it's not gonna be graded, so you don't need to get everything right. It's just for the teachers to see if you're gonna improve throughout the unit or not.

english
a good debatable thesis for A good citizen A good citizen is honest and works hard so they could provide for the family

Math - Sequences
Could someone help me with this question?? What are the first four terms of an arithmetic sequence if the common difference is 1.5 and the first term is 15? A. 15, 30, 45, 60 B. 15, 16.5, 18, 19.5 C. 15, 22.5, 33.75, 50.625 D. None of the above

english

english
When a paragraph tells a story, which method of organization is being used? A. specific-to-general order B. spatial order C. importance order D. chronological order my answer is B

PHYSICS
Less than 1.0 m/s.

Intermediate Algebra
A chemist wants to create a mixture that is 40% (0.40) of a certain chemical. She wants to create 50 liters. She has a stock of 25% (0.25) concentration and a stock of 60% (0.60) concentration. How much of each type should she use?

Algebra
x is the unknown I've tried to solve it this way. -20(x-36)=(x-45)

Algebra
?20 times a number minus 36 is equal to -45 less than a number unknown is x write equation.

Algebra
61 times a number minus 83 is equal to -59 less than a number write equation

Algebra
If 4.7 plus 3.2 times a number equals the sum of the number and 52.7 what is the number write out the equation and solve.

Algebra
85 time the difference between a number and 66 is equal to the number +10 write out the equation and solve f or z

Algebra
The sum of two consecutive even integers is ?126

microbes and society
Umass of lowell

microbes and society
That is what I thought and its on a assignment I will email my teacher cause i kept getting them wrong

microbes and society
Which of the following is the correct sequence of steps in the scientific method? Answers: a. observation - prediction - hypothesis - observation - hypothesis b. hypothesis - observation - prediction - hypothesis - observation c. observation - hypothesis - prediction - ...

Biology
Why would the GBI (Georgia Bureau of Investigation) want to use gel electrophoresis? A. Determine if someone has a genetic disease B. Determine the paternity of a child C. Determine the proper genetic sequence to make insulin D. Determine the identity of a criminal Not sure help?

Biology
DNA is a nucleic acid made up of monomers called A. nucleotides B. polypeptides A?

Microbes and Society
The Forer Test of Personality that you took while reading this week's lecture notes appeared, at first glance, to offer insightful results. Later, you discovered that it actually displayed poor Answers: a. Divergent Validity b. Convergent Validity c. Split-half reliability...

Microbes and Society
Why do boiling inactivates a toxin  (protein) produced by  Clostridium botulinum

Microbes and Society
There are four organic molecules essential for Â weel-being of bacteria- carbohydrates, lipids, nucleicÂ acids, and proteins. Which one you would eliminate in order toÂ destroy bacterium?

Microbes and Society
Which of the following is the correct sequence of steps in the scientific method? a. observation - prediction - hypothesis - observation - hypothesis b. hypothesis - observation - prediction - hypothesis - observation c. observation - hypothesis - prediction - observation - ...

Microbes and Society
Which of the following is the correct sequence of steps in the scientific method? a. observation - prediction - hypothesis - observation - hypothesis b. hypothesis - observation - prediction - hypothesis - observation wrong c. observation - hypothesis - prediction - ...

Microbes and Society
Which of the following is not a good example of a scientific hypothesis (i.e., the hypothesis you would set up to test against the null hypothesis)? Answers: a. Smaller class size is related to better academic performance. b. There is no relationship between fatigue and ...

Microbes and Society
The “central dogma” is a supposedly firm principle that explains how genes function in cells. With the emergence of AIDS, the central dogma has come into question because of the ability of the AIDS virus to convert RNA into DNA. What is the central dogma and why has ...

Microbes and Society
one type of organic molecule in a bacterial species as a way of eliminating the microbe.

Biology
Thank you!

Biology
A heterozygous brown eyed (Bb) parent and a homozygous brown eyed parent (BB) have offspring. Which of these genotypes would not occur in their offspring? A. bb B. Bb C. BB Not positive but A?

Biology
Thanks :)

Biology
Oh..So C?

Biology
A genotype represented by the letters TT is considered to be which of the following? A. Heterozygous dominant B. Homozygous recessive C. Homozygous dominant D. Heterozygous recessive A? Not sure

Biology
Thanks Mrs. Sue I just got confused. :)

Biology
Oh!!! That's how I messed up I thought since Tt had a short t in it that it counted, but it doesn't so it would be 2 right because tt and tt?

Biology
I don't want you to think I'm guessing because I'm trying. So 4 right?

Biology
I think I get what your saying so B right?

Biology
The short stem trait (t) is recessive to the tall stem trait (T). If a homozygous short pea plant is crossed with a heterozygous tall plant, what is the chance that the offspring will be short? A. one out of four B. three out of four C. all four D. two out of four ???

Biology
Thanks

Biology
Blue?

Biology
John has blue eyes. Blue eyes are recessive to the dominant trait for brown eye color. His genotype is bb. What is Johns phenotype? I don't know. Explain?

Biology
Thanks I'm not good at this. Website to help me will be appreciated. Thanks again.

Biology
Mendel crossed two pea plants. One pea plant was homozygous tall (TT) and the other was homozygous short (tt). What are the possible phenotypes (how many tall plants and how many short plants did he get?) I don't understand questions like this.

Biology
Thanks so much! Still learning how to do this.

Biology
A homozygous short dog (dd) is crossed with a heterozygous tall dog (Dd). What is the probability that the offspring will be short? Not sure ?

MICROBES and society
Which living things can harbor prion-like proteins?

Microbes and Society
Which living things can harbor prion-like proteins?

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