Edward

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

Questions

The following questions were asked by visitors named Edward.

Why is the freezing point depression of potassium ethanoate greater than that of camphor or urea (in benzoic acid), with equal moles of each? Wouldn't the Kethanoate break up into two ions per molecule?

18 years ago

hollis is paying off 2 student loans. One loan charges 7% interest, per year. The other loan charges 9 % interest per year. He owes $1500 more on the 7% loan than he does on the other. Last year he paid a total of $617.00 in interest. what does he owe on...

18 years ago

Solve this equation fo rx in the interval 0<=x<=360 3sinxtanx=8 I would do it this way: sinxtanx = 8/3 sinx(sinx/cosx)=8/3 sin^2x/cosx = 8/3 (1-cos^2x)/cosx=8/3 cross-multiply 3 - 3cos^2x = 8cosx 3cos^2x + 8cosx - 3 = 0 (3cosx-1)(cosx+3)=0 cosx=1/3 or cos...

18 years ago

During the cold war, the soviet union and the democracies in the west competerd for influrence in the middle east beacuse of its 1. strategic location and valuable resources. 2. vast fertile farmlands and rivers 3. large well-educated population 4. indust...

18 years ago

How do I go about tackling this problem? The American Medical Association wishes to determine the percentage of obstetricians who are considering leaving the profession becaose of the rapidly increasing number of lawsuits against obstetricians. How large...

18 years ago

How do I go about tackling this problem? (I made a problem-modifying typo in the first) The American Medical Association wishes to determine the percentage of obstetricians who are considering leaving the profession becaose of the rapidly increasing numbe...

18 years ago

What is an example of a solid and a liquid solution

17 years ago

What is Cultural Diversity and why is Cultural Diversity necessary in the first place?

17 years ago

I need some help please Determine the least four digit number that is divisible by 2,3, and 5. Explain your reasoning. Explain how you know that 123 123 123 900 is divisible by 2,3,5,9, and 10. How do you know that it is also divisible by 6.

17 years ago

A set of telephone lines is to be installed so as to connect between town A and town B. The town A has 2000 telephones. If each of the telephone users of A were to be guaranteed instant access to make calls to B, 2000 telephone lines would be needed. This...

16 years ago

I’m working on factoring trinomials of the form ax2 + bx + c & perfect square trinomials. This chapter explains that a further method will be needed to conduct a trial and check process, in which the middle term is the sum of the products. Here’s the prob...

16 years ago

points A {at(2,3)m} and B {at(5,7)m} are in a region where the electric field is uniform and given by vector E=(4i+3j) N/C. What is the potential difference Va-Vb in volts? a. 23 b. 27 c. 30 d. 24 e. 11 i think the formula may be ds=dxi+dyi but even with...

16 years ago

The levl of the nation's debt is: A. Limited by the constitution. B. Always limited by Congress. C. Is not limited by any goverment branch. D. Is not to exceed 10 billion. I know it's not A because my books says that there are no Constitutional limits. I...

16 years ago

Engineering Science Project ideas and some thing cool interesting and new not that has been popular as a science project!!!!!!!!!!!!! Plz!!!!!!!!!!!!!!

15 years ago

could you give me an conclusion and introduction for ancient india clothing and art plz!!!!! plzplzplzplz!!!!!!!

15 years ago

is this a 6 grade work There is and another part of Indian Culture which is Indian Arts The main theme of Indian art seem to begin emerging as early as the Harappan period, about 2500 BC. Although we're still not sure, some Harappan images look like later...

15 years ago

How can I make a 3-d model of the plant and animal cells(Clearly Labeled). Also I can't use food or clay also clay-dough. Plz help

15 years ago

Solve. a+3 less than -12

15 years ago

Part III: Revision In this section of the final, revise the sentences provided to correct the grammar errors indicated. (In many cases there will be more than one correct alternative to the sentence provided; credit will be given for all correct answers.)...

15 years ago

A volume of 35.0 mL of nitrogen gas was collected over water at 24 degrees C and 99.1kPa. The vapor pressure of water at this temperature is 2.99 kPa. What is the pressure of the nitrogen gas alone?

15 years ago

If a completion time for a task is normally distributed with a mean of 15 seconds and a standard deviation of 2.5 seconds, what is the probability of getting a time less than 9.7 seconds?

15 years ago

How much heat is required to melt 75.5g of ice at -25 degrees Celcius, and convert it to steam at 105 Celcius

15 years ago

Can you write a thesis and introduction paragraph for this question/statement: Discuss how the lives of the peoples of the ancient world were shaped by the geography of their region. Thanks A lot :)

14 years ago

Why you think scientists probably want to leave what they do open to revision?

14 years ago

example that show the # part of distance and the # part of displacement can be different for the same motion

14 years ago

if a 5microfarad capacitor is charged by a 20volts battery and it is then connected across an uncharged 20microfarad capacitor , find the potential energy

14 years ago

If the earth had twice its present radius and twice its present mass, what would happen to your weight? Explain. What is the relationship between the radius (R) of orbit of a satellite and its period (T)?

14 years ago

A man in manhattan is told that his destination is 26 blocks east at 30 degree angle uptown from where he stood on houston street determine how many blocks east and how many blocks uptown from where he stood.

14 years ago

two forces act concurrently on a 5kg block resting on a smooth horizontal surface a 5N force making a 40degree angle with the surface and a 10n making a 20degree angle with the surface. A) Determine the magnitude and direction of the net force acting on a...

14 years ago

15kg block rests on a rough surface (u=.35) a 100N force to the left is applied to the block. what is the magnitude and direction of the net force acting on the block? How quickly will the block accelerate over the rough surface?

14 years ago

A 1200 kg car accelerates to the right at 7m/s2 along a special frictionless track. Determine the magnitude and direction of the force the engine exerts to accelerate the car? A wind blows heavy winds into the car's path.As a result the car's acceleration...

14 years ago

A spring scale has a spring coefficient of 400 n/m. Determine the mass of an object if it causes the scale's platform to sink .08m.

14 years ago

A 10 kg block is pushed across a rough surface by a 25N force the block moves at a constant velocity when this force is applied. A) determine the magnitude of the friction force acting on the block B) What is the coefficient of friction between the surfac...

14 years ago

a bus is driving through traffic as it makes a number of express stops. the bus drives at a speed of 10 m/s2 for 90 seconds then drives at a speed of 15m/s for 120 seconds before stopping for 30 seconds, then drives at a speed of 5m/s for 60 seconds befor...

14 years ago

A race car is able to accelerate at a rate of 14m/s2. After exiting a turn at a speed of 15m/s, the car enters a straightaway and accelerates to a speed of 96m/s just as it reaches the end of the straightaway and enters the next turn. A)how long did it ta...

14 years ago

Can you show how to solve 1.8667 = (1+r)^5

13 years ago

IBM issued $1,000 30 year bonds. The bonds sold for $936 and pay interest semi-annually. The required rate of return is 7%. wha tis the semiannual interest payment on the bonds?

13 years ago

Anne, Joe and Lynn, in this order, will take turns to draw two cards from a standard deck of 52 cards. Note that each draw of 2 cards is w/o replacement but draws of different turns are with replacement (the preceding two cards will be put back and the de...

13 years ago

Find the probability that an insurance company will receive more than one warranty claim per day for at least eight of the next 10 days.

13 years ago

A 1.146g mixture of the solid salts NaS)4 and PB(NO3)2 forms an aqueous solution with the precipitation of PbSO4. How would I write the molecular form of the equation for the reaction?

13 years ago

how many RPM are required to attain 1g with a radius of 840 feet

13 years ago

A 20 g bullet moving horizontally with a speed v hits a 2-kg block of wood resting on a table. After hitting the block the bullet is embedded in the block of wood and the block and the bullet moves a distance of 40 cm before it stops. If the coefficient o...

13 years ago

Kate is saving to take an SAT Prep course that costs $350 and saved $180 and she adds $17 to her savings each week. How many more weeks must she save to be able to afford the course? Need the answer right now!

13 years ago

solve A Flag Pole Has A Height Of 16 Yards. It Will Be Supported By Three Cables, Each Of Which Is Attached To The Flagpole At A Point 4 Yards Below The Top Of The Pole And Attached To The Ground At A Pole. Find the total number of feet of cable that will...

13 years ago

I need exam answers to 25 questions that are on the the above college subject exam.

13 years ago

A farmer buys a tracter for Rs 120000. he pays Rs 60000 cash and agrees to pay the balance in annual installments of Rs 5000 plus 12% interest on the unpaid amount. what will the tracter cost him?

12 years ago

A 2.5 ton truck stops and a 1300 pound car slams the brakes and skids 26 feet and hits the truck at 40 mph pushing the truck a foots length. how fast was the 1300 pound car traveling?

12 years ago

The number is 14 more then the number to the sum of 30

12 years ago

A triangle has side lengths 10,17 and 21cm. Find the length of the shortest altitude. And please show working out to help me understand.

12 years ago

2. AllElectronics caries 1000 products, P1, … P1000. Consider customers Ada, Bob, and Cathy such that Ada and Bob purchase three products in common, P1, P2, and P3. For the other 997 products, Ada and Bob independently purchase seven of them randomly. Cat...

12 years ago

Calculate the pH of 0.215 M carbonic acid (H2CO3). (HINT: do NOT worry about the second H+ in this acid!) How would I solve this?

12 years ago

Find the pH of a buffer that consists of 0.82 M methylamin (CH3NH2) and 0.71 M CH3NH3Cl (pKb of methylamine (CH3NH2) = 3.35.) I keep getting 3.41, but it says that it's wrong...

12 years ago

An industrial chemist studying bleaching and sterilizing prepares several hypochlorite buffers. Find the pH of the following buffers. (a) 0.090 M HClO and 0.090 M NaClO (b) 0.090 M HClO and 0.135 M NaClO (c) 0.135 M HClO and 0.090 M NaClO (d) One liter of...

12 years ago

A buffer consists of 0.16 M KHCO3 and 0.39 M K2CO3. Carbonic acid is a diprotic acid with Ka1 = 4.5 10-7 and Ka2 = 4.7 10-11. (a) Which Ka value is more important to this buffer? Ka1 Ka2 I don't understand this one at all. How do I determine which Ka valu...

12 years ago

A Family travels 200 km in two hours and 20 min .then they stop to eat lunch.After lunch they travel 300 km In Two 3 Hours and 40min.What is the average speed during the entire trip?

12 years ago

Consider the following income statement and answer the questions that follow: Sales(100 units) $200 Variable costs (.80each) 80 Fixed costs 20 EBIT 100 Interest expense 30 EBT 70 Income tax 24 Net income 46 a)what is the firm's Breakeven Point in units? b...

12 years ago

A child in a boat throws a 5.15-kg package out horizontally with a speed of 10.0 m/s. The mass of the child is 24.2kg and the mass of the boat is 33.2kg . Calculate the velocity of the boat immediately after, assuming it was initially at rest.

11 years ago

A tennis ball of mass m = 0.068kg and speed v = 21m/s strikes a wall at a 45∘ angle and rebounds with the same speed at 45 What is the magnitude of the impulse given to the ball?

11 years ago

calculate the total surface area of a solid cone of slant height 10cm. use the value 3.14 for radius

11 years ago

A steel ball is dropped onto a hard floor from a height of 1.95 m and rebounds to a height of 1.87 m (assume positive direction is upward) A. Caculate it's velocity just before it strikes the floor B. calculate it's velocity just after it leaves the floor...

11 years ago

I need help attacking this problem A steel ball is dropped onto a hard floor from a height of 1.95 m and rebounds to a height of 1.87 m (assume positive direction is upward) A. Caculate it's velocity just before it strikes the floor B. calculate it's velo...

11 years ago

I need help setting up this problem. A tennis player serves a tennis ball such that it is moving horizontally when it leaves the racquet. When the ball travels a horizontal distance of 19 m, it has dropped 58 cm from its original height when it left the r...

11 years ago

I need help setting up this problem. While standing on the roof of a building, a child tosses a tennis ball with an initial speed of 15 m/s at an angle of 20° below the horizontal. The ball lands on the ground 2.8 s later. How tall is the building? Thank...

11 years ago

Sons By John Updilike How is the tone of the narrator?

11 years ago

The figure below shows Superhero hanging motionless from a rope, with Trusty Sidekick hanging below him. Superhero's mass is 89.0 kg, while Trusty Sidekick's is 58.0kg, and the mass of the rope is negligible. (a) Find the tension in the rope at a point be...

11 years ago

A 80-kg man stands on a bathroom scale inside an elevator. (a) The elevator accelerates upward from rest at a rate of 1.40 m/s2 for 1.50 s. What does the scale read during this 1.50 s interval? N (b) The elevator continues upward at constant velocity for...

11 years ago

Three particles A, B, C start from the origin from the same time, A with velocity a along x-axis, B with velocity b along y-axis, C with velocity c in xy plane along a line x=y. What should be the magnitude of c so that they always remain collinear is (a)...

10 years ago

find the 2nd derivative of y= 1/x +cosxsinx I got 2/x^3 - 2cosxsinx is this right or did I get this wrong

10 years ago

Whats the 2nd derivative of 4xsecx I got 4secxtanx+8xsecxtan^2x

10 years ago

f(x)= 1/3x^5 + x^-2 + 3, then f'''(x) is.. I got f'''(x)= 20x^2-24x^-5 Can you tell me if I got this right

10 years ago

b_n=(-2)^(n-1)

10 years ago

It is a 4-digit number The tens are double the ones. The thousands are double the tens. The sum of the digits is 19. What number is it?

10 years ago

1. Scale is 1 in.= 3 ft. If the room is 8 inches long and 2 inches wide on a blueprint, how much will it costs to clean the carpet if the costs is $15 per square foot?

10 years ago

a brass rod is 2 m long at a certain temperature. what is its length for a temperature rise of 100 K, if the expansivity of brass is 18 *10^-6K-1?

10 years ago

How to get into Nasa after doing aerospace engineering from India? Could you please tell me best universities for aerospace engineering other than IIT's?

10 years ago

From which website I can get offline test papers(chapter wise) for preparation of Jee advanced 2015.

10 years ago

Please tell me websites for online chapter wise test series for jee advanced 2015 preparation. (Chapter wise) if not then mock test papers

10 years ago

HOMEOWNERS IN UNITED STATES USE MORE THAN 15 MILLION POUNDS OF PESTICIDES ON THEIR LAWNS EVERY YEAR. CONVERT THIS RATE TO OUNCES PER DAY ROUNDED TO THE NEAREST WHOLE NUMBER.

10 years ago

What is the volume of a coffee can that is 6.5 inches high and has a diameter of 5 inches. round your answer to the nearest tenth.

10 years ago

A swimming pool is 75 feet long, 45 feet wide, and 8 feet deep. It is filled to a depth of 5 feet. What is the volume of the pool?

10 years ago

Todd run 8 laps around a 400-meter track on Monday, 4 laps on Tuesday, 8 laps on Wednesday, 4 laps on Thursday, and 8 laps on Friday. How many kilometers did he run?

10 years ago

What does the speaker in “Remembrance” plan to do? a. Forget her beloved. b. Live in mourning forever. c. Find a new love. d. Go on with her life.

10 years ago

The greenhouse effect occurs on many planets. If the actual temperature on Venus is -40 degrees, the temperature with the greenhouse effect is 800 degrees. What is the difference between the actual temperature and the temperature with the greenhouse effec...

10 years ago

A scientist measured the temperature at the surface of a 7 inch deep snow. The temperature was -27 degrees. At ground level, the temperature was 24 degrees. How much warmer was the temperature at ground level.

10 years ago

Answers

The following answers were posted by visitors named Edward.

Yes please. I think I hit the refresh button while posting. Sorry. Would love to work with you on getting some hints on getting this done.

16 years ago

33/100

16 years ago

i wrote this why is it good or not what more does it need

15 years ago

132.8460441 Provided your 554 is correct.

15 years ago

21.38011111

15 years ago

Some of my points are : lives of the ancient people being horrible and treacherous because of the geographical features of their region, regardless they took advantage of these features and settled near rivers, lakes, or mountains.

14 years ago

f(x)=1/2^4(x^2-5)(X+1)

14 years ago

I need info on life on the early middle ages to write a short story or poem

14 years ago

Yeah it is B because the president can deploy the armed forces for sixity days and following that congress must approve the deployment of the troops.

14 years ago

If a car is traveling at 24 meters per second, at how many kilometers per is it traveling?

13 years ago

4. Suppose you administered an anxiety test to a large sample of people and obtained normally distributed scores with a mean of 45 and standard deviation of 4. Do not use web-calculator to answer the following questions. Instead, you need to use the Z dis...

12 years ago

it wouldn't slow the car down at all its redundet there just isn't enough pressure behind the fly to stop the car or to slow it down it would kill the fly and make a speck of guts on the windshield

12 years ago

The Answer is c: Ag(s)

12 years ago

0.88cm; depth dependence. listen to your prof.

12 years ago

Yeah, I got (a). The answer was 7.53. But when I try to solve (d), I keep getting the wrong answer. I subtracted the moles of NaOH from the acid and added the moles to the base. Then I did Ka = (x*([NaClO]+x))/([HClO - x) and then I found the pH. I got 8....

12 years ago

Thank you so much!

12 years ago

I have no idea why I was having such a hard time with that one. Thank you so much for your help.

12 years ago

In a physics study group, a friend says in a profound tone that light is the only thing we can see. After a few laughs, your friend goes on to say that light is produced by the connection between electricity and magnetism. Is your friend correct? My respo...

11 years ago

Jacob is baking chocolate chips cookies. the recipe uses 3/4 cups of sugar. Jacob wants to make one half of a batch. how many cups of sugar does he need? 2/3

11 years ago

Jacob is baking chocolate chips cookies. the recipe uses 3/4 cups of sugar. Jacob wants to make one half of a batch. how many cups of sugar does he need? 1/4

11 years ago

arithmetic sequence b_n=(-2)^(n-1)

10 years ago

Worcester state: pH- log[H-]<--H20<--> H + 0H-

10 years ago

Are there no papers to be downloaded on the device?

10 years ago

Texas university......????? I can't get the name

10 years ago

Thank u so much for your help Actually I m looking for indian universities.

10 years ago

I can battle with qustion (1), but look at 2&3 i don.t even know were to start from pls help

10 years ago

No no....please I want you to tell me some website....from where I can find details of this experiment

10 years ago

Root3cosx nt root3cos

10 years ago

PF3 SBr2 CH3Br CHCl3 - should have a bond angle of 109.5 as it is tetrahedral but the actual bond angle between the CH bond and CCl bonds will be less than 109.5 and the angle between CCl bonds will be more than 109.5. This is because the Cl atoms have el...

9 years ago

sooey there is power 6 on full bracket

9 years ago

sorry power 6 on bracket

9 years ago

If no.s are srlected randomly then what is probablity to above question

no circumference=3.14(diameter)

9 years ago

anyone able to solve my problem

9 years ago

gg frank

9 years ago

because they're equilevant then

9 years ago

rekt

9 years ago

thanks, there was a similar problem instead of 220 men and women it was 275.. i just substituted

9 years ago

What is the cell structure involved in photosynthesis and respiration?

8 years ago

A hyperbole.

6 years ago

what is the workdone?

6 years ago

I am the original poster, disregard this post. I posted it to check for grammatical errors but do not want to get in trouble for plagiarism. Thanks. -Jacob

5 years ago

No. dS=-dH/T... solve for T

5 years ago

316K

5 years ago

That formula is used to solve for delta H, not to solve for K. You have to have the 2 temperatures and equilibrium constants to solve for delta H.

5 years ago

I take that back. If you solve for K1 at 298 Kelvin, you can plus those values in and solve for K2, as long as you have delta H. T1 is 298 and T2 is 550.

5 years ago

Is what still remain equal to one?

5 years ago

So would you say that B is the correct answer.

I prefer the second one because the first the chemistry is more than the biology but the question states that the biology is 6 more than the chemistry.

3 years ago

4x4

3 years ago