Lyn

This page lists questions and answers that were posted by visitors named Lyn.

Questions

The following questions were asked by visitors named Lyn.

The infrared spectrum of CH3CH2NH2 shows two absorptions not shown by bromoethane. Identify the bonds responsible for these absorptions. I'm a spectroscopist, but not a chemist. Here's my best guess. The CH3CH2NH2 has a NH2 group where a Br would be in br...

I need to predict the acid/base reactions of sodium carbonate with HCl, CH3COOH, NH3, and NaOH. I'm stuck, when I'm writing out the ions to find the strongest acid and base, does the NaHCO3 become Na and HCO3, or N, H, and CO3? Also, would these be polypr...

4^-x=(1/256) I think the answer or I guess the answer I have is: 4^-x=16^-2

Where do I get started with this? Write a 700- to 1,050-word paper in APA format describing the effects of taxation and price controls on the economy.

a bottle of a soft drink looks pure, but it is not, how could you demonstrate that it is a mixture? thanks

Pretend the program in Senegal had been reducing infant mortality at a rate of 12.5 % per year. How long would it take for infant mortality to be reduced by 38 %?

what's another word for poop?

Q. A person wants to shoot a rocket off of a mountain 3.26 km high so that the rocket, when shot at 31.3¡Æ above the horizontal from the very top of the mountain, lands at the foot of the mountain 9.37 km (horizontal distance) away. a) What initial speed...

Q. A force F = (3.99xi + 2.86yj) N acts on an object as it moves in the x direction from the origin to x = 4.45 m. Calculate the work done on the object by the force. Attemp: since we only consider x direction i multiplied 3.99 by 4.45 but it didn't work...

every physics helpers are not getting any responses. can someone help on physics questions pleases???

Tuyns et al. (1977) carried out a case-control study of esophageal cancer in the region known as Ille-et-Vilaine in Brittany, France. The referring data set is oesoph_new.dta, and use logistic regression models to answer each of the following questions. F...

Find the possible values of a, if the distance between the points is 5, and the coordinates are (1,1) and (4,a) I'm not quite sure how to do this one.. I've tried the distance and midpoint formula, but I'm confused. I don't what to do with the (a-1)^2 par...

I can not figure these out for the life of me. Any help is appreciated. 1. Find the final amount of an investment if $2,000 is invested at an interest rate of 8% compounded quarterly for 8 years. I used interest formula and came up with $1,769.08. And the...

An empty glass jar weighing 1.54 kg is in the shape of a cylinder which has a radius of 14cm and a height of 20cm. Calculate how many litres of water it will hold when filled to the top.Also calculate its weight when it is filled with water (take pie=22/7...

Larry has an annual return of $213.00 from $3000.00 invested at simple interest. One at 5% and the other at 8%. How much is invested at each rate. (Hint, Interest earned = amount invested x rate of interest.)

Sally dilivered 148 newspapers and received $0.03 per paper. What were her earnings?

A crate is initially at rest on a rough, horizontal floor. The crate moves in a straight line as it is pushed resulting in the crate speeding up at a constant rate of 3.89 m/s2. After a while, the crate is no longer being pushed and the crate slows down a...

I bought 16.8 gallons of gas at a cost of $61.47. Estimate the unit price(cost per gallon)

If the alpha level is changed from a=.05 to a=.01. a. What happens to the boundaries for the critical region? b. What happens to the probability of a Type I error?

Can someone please help with this problem to advise how to set up and in the book Essential of Statistics for the Behavioral Sciences. A researcher is investigating the effectiveness of a new study-skills training program for elementary school children. A...

In a correlational study a. 1 variable is measured and 2 groups are compared b. 2 variables are measured and 2 groups are compared c. 1 variable is measured and there is only 1 group of participants d. 2 variables are measured and there is only 1 group of...

One item on a questionnaire asks, "How many siblings (brothers and sisters) did you have when you were a child?" A researcher computes the mean, the median, and the mode for a set of n = 50 responses to this question. Which of the following statements acc...

For a negatively skewed distribution with a mode of X = 25 and a median of 20, the mean is probably ____. a. greater than 25 b. less than 20 c. between 20 and 25 d. cannot be determined from the information given

A researcher measures eye color for a sample of n = 50 people. Which measure of central tendency would be appropriate to summarize the measurements? a. mean b. median c. mode d. any of the three measures could be used

In a population of N = 10 scores, the smallest score is X = 8 and the largest score is X = 20. Using the concept of real limits, what is the range for this population? a. 11 b. 12 c. 13 d. cannot be determined without more information

A sample of n = 25 scores has M = 20 and s2 = 9. What is the sample standard deviation? a. 3 b. 4.5 c. 9 d. 81

Needing some help to clarify this problem and help finding the right answer. _b___ 2. Which of the following accurately describes the critical region? a. outcomes with a very low probability if the null hypothesis is true b. outcomes with a high probabili...

Needing help to get this answer right. _c___ 3. What is the relationship between the alpha level, the size of the critical region, and the risk of a Type I error? a. As the alpha level increases, the size of the critical region increases and the risk of a...

how do you find the hypotenuse of a triangle

Can someone show me and explain a step by step process how to do this problem? Thanks 1) Two equal but opposite charges re separated by a distance d. Determine a formula for VBA = VB – VA for points B and A on the line between the charges situated as show...

What is the value of y in the system shown? y=12x-3 y=-2x+4 Thanks

What is the value of x in the system shown? y=1/5x+2 y=x-4

How to write three linear system that are equivalent to the linear system shown? 5x-4y= -3 2x + 7y= 5

Calculate the molar concentration for each of the following. a)The concentration of a brine solution containing 225 g for pure sodium chloride dissolved in 4.00 L of solution. b)The volume that must be added to 4.2 mol of magnesium chloride to make a 0.04...

A triangular park has a perimeter of 45 meters. What is the measurement of one side if each of the other two equal sides measure 28 meters?

What are the major species in a solution during the titration of citric acid with a strong base such as NaOH?

What are the major species in solution during the titration of citric acid with a strong base?

calculate the volume needed to make 2.20 x 10^2 ml of 0.100M cacl2. what would be the total concentration of the final (Cl-) alone?

Compare and contrast the US and Canadian forms of government. Give a basic framework for each government.

Which part of the plant is responsible for absorbing water and nutrients? A.leaves B.stem C.roots*** D.xylem

In which part of the plant would you expect to find cells with the most chloroplasts? A.leaves*** B.roots C.xylem D.cambium

Tell which number is prime: 19, 28, 49, 63. A.63*** B.49 C.28 D.19

Which of the following do the conflicts in both Darfur and Rwanda illustrate? A. The environmental issues many African nations are experiencing. B. The problems some African nations are facing as a result of colonialism. C. The economic prosperity certain...

1. Which factors led to the downfall of Ghana? Select all that apply. A. Ghana was engaged in conflict with people to the north. B. Ghana lacked nearby water resources. C. Ghana was unwilling to participate in trade. D. Ghana's large population began stra...

If a current of 10.75 milliampere passes through a resistor of 5.5k ohms find the voltage drop aross the resistor. Is it v=IR only

How many electrons should be removed from the van de graaff generator so that its electric charge reaches 1.6 uC?

During when does electrostatic force appear? Does moving a bent finger closely to a van degraff generator considered to exhibit electrostatic force?

A resistance r1=12ohms is connected in series with another resistance r2= 8 ohms. What resistance r3 must be connected in parallel with the combination of r1 and r2 so that the equivalent resistance is equal to the resistance r1?

A 5 ohms resistor is connected in parallel with the series assemvly of 2 ohms and 3 ohms resistors. The voltage drop across the 2 ohms resistor is 6V. What is the current through the 5 ohms resistor?

How would you hook up 3 resistors in a circuit to get the maximum current and the minimum current?

When a bar magnet is cut into two halves repel each other. Why? What becomes of the original north and south poles of that magnet?

Are there magnets with a single magnetic pole? Is it possible for the pole strength to be different for the north and south poles of the same bar magnet?

If 2 bar magnets are brought together, north to north and south to south is the resultant pole strength of the combination equal to the sum of their pole strengths?

2 plane mirrors are at a right angle facing each other. A laser is beamed into one of the mirrors at an incident angle of 30 degrees will the reflected beam hit the mirror? If so, at what incident angle? Explain.

A spherical tank of radius 100ft is full of gasoline weighing 40 pounds per cubic feet how much work is done in pumping the gasoline to the top of the tank?

Coprecipitation involves: A. Precipitation of 2 insoluble substancs simultaneously from the same solution. B. Precipitation of a normally soluble material with an insoluble material C. Failure to separate 2 insoluble materials because the soluble material...

Which major political and economic problems does North Korea face because of its autocratic policies and nuclear weapons program? Select all that apply. A. food shortages and malnutrition B. high gross domestic product (GDP) C. industrial overproduction D...

Answers

The following answers were posted by visitors named Lyn.

Ok - thanks. I have the APA down. I am having trouble looking for a web site for articles that discuss the local, state, or federal taxation of a good.

thanks, i meant pure substance because its one colour

Thank You bobpursley.

I think i got it now.

Its wrong again. is the value of d same as x??? I'm keep getting the wrong answers for both part a and b.

because there is PEnergy, i get the negative value do i can't take the root of it!!!

Thank you Reiny!

Thank you very much, I was beyond stumped.

RADISH should be written as a plural in line with the other vegetables, i.e, RADISHES.

It is about the author's imminent death and about all the things that he would have liked to achieve but never did.

Ms. Sue is correct. It is easy to do this yourself. All you need to know that with B.C.E. dates, the higher dates come before the lower dates. For example, 5th century B.C.E. is an earlir date than 3rd Century B.C.E.

Ms. Sue is correct. All you do is multiply the number of boys by 2 and you have your answer.

One of the secrets for proofreading any document is to read the sentences out loud. You will pick up many grammatical errors this way.

The answer is B.

B_0 in both cases seem difficult cannot get it, please help!

Thank you both for helping with this. I'm so glad that you all are here.

Satellites in the global positioning system (gps) orbit is 12,500 miles above Earth. Gps signals can't travel through earth so a satellite at point b can transmit signals only to points on ac. How far must the satellites be able to transmit to reach point...

can you explain in details? Plz and thank you

how do you get this ? x + 10 = 5 x - 20

Thank you for answering =)

Yea May is right I got a 100 on it.

I just need something that explains what this means... ;-;

Prokaryotes: A microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles. Prokaryotes include the bacteria and cyanobacteria. Eukaryotes: An organism whose cells contain a nucleus surrounded by...

I have well I just did...

O sorry I did not think about it that way sorry about that...

@lun is correct I got a 100%

Thx so much Mrs. Jacup Mrs. Sue answers were wrong except 1

This one is based on what I can find or know.. No reading assignment

Someone who has taken the test.. I just want to check my answers I have them already to send in just want to make sure they are correct.

Mam um Spamming is putting all kinds of letters or numbers...and also you have answered people who put 16 questions an more with know answers.. an also are you a Real teacher or no

cool.. but why don't you know answers that some kids ask?

Sorry. for that Writeacher. I do not think that at all. An I did change some words I did not copy it.. an it is not really a test. its just a practice an them the Questions change when I retake it....

And I just wanted to see if anybody had the same answers I have I will post them right now E anA B C A those are just some of them

Hey, @Hii!! were you correct?

My answer is prudence

but im confused

did you find out the answers?

×/10=5/4 4/4=50/4 ×=12 4/54