Monday

March 2, 2015

March 2, 2015

Total # Posts: 78,377

**Physics electric field **

A -1.5μC charge experiences a 10i^−N electric force in a certain electric field. What force would a proton experience in the same field? My answer of Fx= 4.17 *10^-13 N is wrong. What am I doing wrong? How do I get the correct answer?
*February 3, 2015*

**Physics Field Strength**

An electron experiences an electric force of 0.75 nN. What's the field strength at its location? E= N/C How do I solve this problem?
*February 3, 2015*

**Physics Coulombs Law**

A proton is at the origin and an electron is at the point x = 0.45nm , y = 0.38nm . Find the electric force on the proton. Fx , Fy = N How do I go about solving these 2 problems?
*February 3, 2015*

**math**

You have 15 pennies in your pocket, 3 are Canadian. You pick aenny out of your pocket at random. FInd p (not Canadian)
*February 3, 2015*

**history**

Because it's warm?
*February 3, 2015*

**math**

If A Bicycle Wheel Has A Diameter Of 27 Inches, Find The Radian Measure Of The Angle Through Which The Wheel Turns As The Bicycle Travels A Distance Of 1 Mile
*February 3, 2015*

**History**

What we're professional baseball clubs forced to do in world war 2
*February 3, 2015*

**math**

a bean plant grows 15% of its height each day, after 10 days the bean plant is 27 inches tall. how tall was it yesterday?
*February 3, 2015*

**spell**

Circle:sphere A link:Chain B length:breadth C triángle:rectangle D Suárez:cube
*February 3, 2015*

**Math**

5000000
*February 3, 2015*

**Math**

A 30-second commercial during this year’s Super Bowl costs $4.5 million. B) Doritos is running 2 thirty-second commercials. A 16-ounce party-size bag of Doritos costs $3.98. If after paying the production costs of making and packaging this snack the company earns $1.80 ...
*February 3, 2015*

**math**

thank you very much
*February 3, 2015*

**math**

so the answer is 1130
*February 3, 2015*

**math**

do you do 323+ h=1453
*February 3, 2015*

**math**

or x-323=1453
*February 3, 2015*

**math**

or x-323=1453
*February 3, 2015*

**math**

1453= x-323
*February 3, 2015*

**math**

thank you mrs.sue and i'm sorry about the name.
*February 3, 2015*

**math**

72 beats a minute.
*February 3, 2015*

**math**

so it beats 720 beats in a minute?
*February 3, 2015*

**algebra**

Zimak bought 3 xylobars and 5 yackities from the Intergalactic Candy Store for $1.75. Jeejuju paid $1.88 and got 4 xylobars and 1 yackity. How much would Dado pay for 1 xylobar and 2 yackities?
*February 3, 2015*

**Math - Answer Check**

Determine whether the polygons are similar. ABCD with vertices A(–5, 4), B(–2, 4), C(–2, 2), D(–5, 2) and EFGH with vertices E(–2, 0), F(4, 0), G(4, –6), H(–2, –6) They aren't similar, right?
*February 3, 2015*

**algebra**

factorize: 2a(2a-b) + (2a-b)-8
*February 3, 2015*

**physics/Math**

Buffy the Vampire Slayer is buffing up her 0.53 meter long arms by bench pressing. In 31 seconds she can lift 39 kilograms of mass 22 times. How powerful are Buffy's arms?
*February 3, 2015*

**algebra**

if f(x)=2x+1 then f(-2)=
*February 3, 2015*

**Physics/Math**

9
*February 3, 2015*

**maths**

Three girls, I!@#$%^&a Isha and Nisha are plyaing a game by stnding on a circle of radius 20 m drawan in a park. I!@#$%^&a trhows a ball to Isha Isha to Nisha and Nisha to I!@#$%^&a. if the distance between I!@#$%^&a and Isha and between Isha and Nisha is 24 m each what is the...
*February 2, 2015*

**Math - Answer Check**

Yes, but a proof explaining the translation and scale factor is expected in my quiz. So would the answer be correct in this case?
*February 2, 2015*

**Math - Answer Check**

Prove that circle A with center (–1, 1) and radius 1 is similar to circle B with center (–3, 2) and radius 2. From A to B: (x - 2, y + 1), scale factor 2?
*February 2, 2015*

**calculus**

Find the x-coordinates where f '(x) = 0 for f(x) = 2x + sin(2x) in the interval [0, 2π].
*February 2, 2015*

**calculus**

A particle moves on a line away from its initial position so that after t hours it is s = 6t^2 + 2t miles from its initial position. Find the average velocity of the particle over the interval [1, 4]. Include units in your answer.
*February 2, 2015*

**Physics **

A 45.0 g arrow moving North at 134 m/s strikes a 1.50 kg bale of straw initially at rest. The arrow passes through the bale, leaving at 78.0 m/s. What is the velocity of the bale when the arrow leaves?
*February 2, 2015*

**Math**

They're not similar according to my calculations. Is this right?
*February 2, 2015*

**Math**

Determine whether the polygons are similar. ABCD with vertices A(–5, 4), B(–2, 4), C(–2, 2), D(–5, 2) and EFGH with vertices E(–2, 0), F(4, 0), G(4, –6), H(–2, –6)
*February 2, 2015*

**chemistry**

After you carefully lower each cube into the water of its own cylinder, what will the new water level be in the cylinder with the lead cube?
*February 2, 2015*

**Science**

omg sorry! I asked the same question on both the second question is 2. which of the following body systems work together to supple nutrients or oxygen and remove waste? . A. circulatory, digestive, integumentary, skeletal B. circulatory, digestive, respiratory, urinary C. ...
*February 2, 2015*

**Science**

I mean I think the first ones D and the second question is C
*February 2, 2015*

**Science **

Which of the following are structures that rely on capillaries for exchange or movement of small molecules? A. teeth, aorta, ureter B. cartilage, epidermis, larynx C. nephron, villi, alveoli D. leukocytes, atrium, bronchi Which of the following are structures that rely on ...
*February 2, 2015*

**Science **

1. Suppose a patient comes in to see a physician. This patient lacks the ability to keep warm and needs to wear heavy clothing even during mild temperatures. Which system of this patient’s body should the physician be concerned about? A. integumentary B. Skeletal C. ...
*February 2, 2015*

**chemistry**

what does copper look like under normal condition(solid,liquid,gas,color,etc)
*February 2, 2015*

**maths..g.p**

Find the sum of all numbers between 5 and 130 which are divisible by four
*February 2, 2015*

**maths..g.p**

The sum of the positive odd integers less than 50
*February 2, 2015*

**Math**

Price of the item after a 23% increase with sales tax Price is $129.00 Sales Tax is 5.75% Ms. Sue can you help me answer this question?
*February 2, 2015*

**acceleration**

Col. John Stapp led the U .S . Air Force Aero Medical Laboratory's research into the effects of higher accelerations. On Stapp's final sled run, the sled reached a speed of 284.4 m/s (632 mi/h ) and then stopped with the aid of water brakes in 1.4 s . Stapp was barely ...
*February 2, 2015*

**geography**

why did tge northeuropen plain develope into a densly populated industrial center
*February 2, 2015*

**maths help please**

thanks reiny I got all of those correct thanks alot
*February 2, 2015*

**oragnic chemistry**

convert the measurement 92.0g into pounds (1lb=453.6g)
*February 2, 2015*

**chemistry**

A chemist used 500g of glucose(c6H12o6)in a preparation of a drug in the laboratory how many moles was used?
*February 2, 2015*

**Science**

What physical features are caused by plate tectonics?
*February 2, 2015*

**Chemistry**

smaller
*February 2, 2015*

**science**

10m = 0.5(9.8m/s^2)t^2 0.5*9.8=
*February 2, 2015*

**maths please help**

Thanks damon but I don't understand what did you on number 3???
*February 2, 2015*

**maths please help**

Thanks damon
*February 2, 2015*

**Criminal Law**

I do not want anyone writing my paper for me? usually when I post questions, someone replies with a site that i could visit to help me out a little bit. I enjoy the extra bit of advice that I can recieve. And I was not aware that no one has a background in law. I think that ...
*February 1, 2015*

**Criminal Law**

Summarize all of the steps between arrest, pre-trial, trial, and appeals (both state and federal appeal possibilities). Explain the contingencies for each stage of the proceedings and address all possible outcomes. Analyze how constitutional protections for the defendant work ...
*February 1, 2015*

**Physics**

A batter hits a baseball so that it leaves the bat with initial speed of 40 m/s, at an angle of 60°. Tom Brady throws an incomplete pass at an initial speed of ~ 60 miles/hour (mph). When the ball was released, it’s initial velocity made an angle of ~45° with ...
*February 1, 2015*

**L.A.**

Okay. Thank you
*February 1, 2015*

**L.A.**

To which sense do the following lines from "Grandma Ling" appeal? and there I faced my five foot height, sturdy legs and feet square forehead, high cheeks, and wide-set eyes A. hearing B.taste C. sight D. smell 2. which word best describes the tone of the following ...
*February 1, 2015*

**algebra**

Assume that the growth of the membership of a country club was linear from 1996 to 2000 with a membership of 214 in 1996 and a rate of growth of 730 per year. write an equation for the membership P of this country club as a function of the member of years x after 1996
*February 1, 2015*

**Chemistry **

The age of wine can be determined by measuring the trace amount of radioactive tritium, 3H, present in a sample. Tritium is formed from hydrogen in water vapor in the upper atmosphere by cosmic bombardment, so all naturally ocurring water contains a small amount of this ...
*February 1, 2015*

**Precal **

Is y=-2 x 5^x a monomial function?
*February 1, 2015*

**Math**

A hardware store will deliver up to 6 items for a $25 delivery charge. There is a charge of $4 for each additional item to be delivered. a. Write a piecewise function for the cost of having x items delivered. b. What is the charge to have 14 items delivered?
*February 1, 2015*

**Algebra**

x+y=57 22x+10y=774 -10(x+y=57 -10x-10y=-570 22x+10y=774 -------------- 12x=204 --- --- 12 12 x=17 57-17= 40 40 children went on the cruise?
*February 1, 2015*

**Algebra**

The Manhattan Island cruise Company sold 57 tickets for its Circle-the -Island Cruise. Each adult had to pay $22 for the cruise and each child had to pay $10. If the company's total receipts were $774. How many children went on the cruise?
*February 1, 2015*

**Algebra**

thank u!!!!!!
*February 1, 2015*

**Algebra**

i think i have to make a table? x/y 6/18 3/9 1/6 the larger number is y so is the larger number 18?
*February 1, 2015*

**Algebra**

The difference of two numbers is 12. The sum of the larger number and 3 times the smaller number is 20. Find the larger number.
*February 1, 2015*

**Chemistry**

Can someone please help me solve this problem? Calculate the solubility of Ba3(PO4)2 in water. For Ba3(PO4)2, Ksp = 1.3 x 10- 29 Thank you!
*February 1, 2015*

**Algebra**

find the slope of a line that is perpendicular to the line containing the points (-2,-1) and (2,3) a.m= -2 b.m= 2 c.m= -1/2 d.m= -1
*February 1, 2015*

**Physics **

You are given two unknown point charges, Q1 and Q2. At a point on the line joining them, one-third of the way from Q1 to Q2 the electric field is zero . What is the ratio Q1/Q2?
*February 1, 2015*

**physics**

A hammer falls from a scaffold on a building 50.0 m above the ground. Find its speed as it hits the ground.
*February 1, 2015*

**chemistry**

5.6g of organic compound on burning with exess oxygen gave 17.6g of CO2 and 7.2g of H2O .the organic compound
*February 1, 2015*

**Chemistry **

Estimate the rate of the reaction, H2SeO3 + 6I^- + 4H^+ --> Se + 2I3^- + 3H2O given that the rate law for the reaction at 0°C is rate = (5.0 × 105 L5mol-5s-1)[H2SeO3][I-]^3[H+]^2 The reactant concentrations are: [H2SeO3] = 1.5 × 10-2 M [I-] = 2.4 × 10-...
*February 1, 2015*

**s**

I combine them above
*January 31, 2015*

**s**

I combine the sentences does it make sense?
*January 31, 2015*

**s**

The fish didn't take , ,as they periodically teased the boys,nibble at bit,they jumped ,as the jumping within arm"s reach of the boy,were on bank.I had combine does it make sense
*January 31, 2015*

**chemistry**

A buffer solution is made by dissolving 0.45 moles of a weak acid (HA) and 0.23 moles of KOH into 720 mL of solution. What is the pH of this buffer? Ka = 6.2 × 10−6 for HA. Answer in units of pH. please i need the answerf
*January 31, 2015*

**chemistry**

The ionization constant of HA is 1 × 10−6 . What must be the ratio of [A−] to [HA] for the preparation of a buffer solution with a pH of 6.77? whats the answeer??????
*January 31, 2015*

**chemistry**

A buffer solution is made by dissolving 0.45 moles of a weak acid (HA) and 0.23 moles of KOH into 720 mL of solution. What is the pH of this buffer? Ka = 6.2 × 10−6 for HA. Answer in units of pH. i need the answer
*January 31, 2015*

**chemistry**

i dont know how
*January 31, 2015*

**chemistry**

What is the concentration of hydrogen ions in a solution containing 0.645 M HOCN (cyanic acid) and 0.235 M (NaOCN) (sodium cyanate)? The ionization constant of cyanic acid is 3.5 × 10−4 . Answer in units of M
*January 31, 2015*

**chemistry**

whats the answer?
*January 31, 2015*

**chemistry**

What mass of solid sodium formate (of MW 68.01) must be added to 115 mL of 0.57 mol/L formic acid (HCOOH) to make a buffer solution having a pH of 4.16? Ka = 0.00018 for HCOOH. Answer in units of g
*January 31, 2015*

**Statistics**

The height of a bluebird was measured in centimeters. If the ruler reads 10.599 centimeters, what is the lower real limit of the bluebird's height? I know the lower limits of 10 are 9.5 or 10.5 after we go further I don't understand how to get the rest of the real ...
*January 31, 2015*

**math**

5,280 divided by 9 = is what?
*January 31, 2015*

**Pre Calculus **

Can someone help me with this problem? Determine the number of positive integers less than 10,000 that can be formed from the digits 1, 2, 3, and 4 if repetitions are allowed. Thank you!
*January 31, 2015*

**Chemistry **

What is the enthalpy change when 25 g's of PCl5 are decomposed /\ H= 90
*January 31, 2015*

**math**

Express 0.78 .as a fraction a/b where a,b,=integer
*January 31, 2015*

**algebra**

The price of salt goes up by 9 cents. The old price goes up by four-fifth of new prices. Find old and new price.
*January 31, 2015*

**algebra**

The price of salt goes up by 9 cents. The old price goes up by four-fifth of new prices. Find old and new price.
*January 31, 2015*

**algebra**

The price of salt goes up by 9 cents. The old price goes up by four-fifth of new prices. Find old and new price.
*January 31, 2015*

**math**

one out of 42 high school ball players plays college ball. one out of 47 college players plays professional ball. what fraction of high school players professional ball?
*January 31, 2015*

**Sociology of Sports**

In the coverage of women's sports, it is common for the media to
*January 30, 2015*

**Science**

So it would be the ancient sea dried up and became land. I was just backwards, lol @Ms. Sue
*January 30, 2015*

**Science**

geologist finds fossils of a lizard-like dinosaur and a fern-like tree in layers that are 1.0 m and 1.5 m deep. However, in a layer that is 2.0 m deep, he finds fossils of bony fish and shellfish. Which explains? 1. The continent shifted to a polar region. 2. The ancient land...
*January 30, 2015*

**Science**

which conditions characterize a high-pressure area? 1. low density, low humidity 2. high density, high humidity 3. high density, low humidity** 4. low density, high humidity
*January 30, 2015*

**government**

i know how a bill becomes a law, but what are 2 actuall bill passes that i can use
*January 30, 2015*

**government**

Explain the process for how a bill becomes a law Utilize 2 actual bills as examples
*January 30, 2015*

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