Wednesday

April 23, 2014

April 23, 2014

Total # Posts: 69

**Physic II**

A flat 1.0 m2 surface is vertical at x = 2.0 m and parallel to the yz-plane. What is the flux through the surface if it is located in a uniform electric field given by E = 25.0i + 42.0j + 62.0k N/C? Please show explanation

**Physic II**

A small glass bead that has been charged to 4.4 nC? What is the strength of the electric field 2.0 cm from the center of the bead? Please show all work

**functions Steve and Reiny**

I want to thank you both for your help and no sir I have never dealt with functions before as I am 44 years old and going back to school, I am taking an online class my textbooks are not scheduled to arrive until Nov 1, so I am a little lost but hey thank you both once again, ...

**functions**

For each problem, construct two composite functions, . Evaluate each composite function for x=2 ok i have not dealt with composite functions can I please get some help with this as I have 20 questions to do can someone show me step by step on how to properly solve this equatio...

**math**

1.)simplified 2x^4y/6xy^2 I got 1x4y? 2.)(8x^2)(-3x^y) 18x^4y right? I ddnt know what to do with the y

**math **

solve (-2y)^2(3x^3) I totally don't get this problem. Does my answer come out with x and y ? how do I eliminate?

**Algebra**

11

**Math**

Alicia went on a steamboat ride up the Mississippi River. The boat travels 20 miles per hour in still water. How long will it take her to travel 60 miles upstream if the current of the river is 8 miles per hour?

**math**

susie writes the division fact 20/5=. write the remaining fact in this fact family.

**3rd grade math**

Draw a model to show 84/12=7

**physics**

A circular coil (980 turns, radius = 0.078 m) is rotating in a uniform magnetic field. At t = 0 s, the normal to the coil is perpendicular to the magnetic field. At t = 0.027 s, the normal makes an angle of 45o with the field because the coil has made one-eighth of a revolutio...

**physics**

can anyone please help me on this one? A circular coil (980 turns, radius = 0.078 m) is rotating in a uniform magnetic field. At t = 0 s, the normal to the coil is perpendicular to the magnetic field. At t = 0.027 s, the normal makes an angle of 45 degrees with the field becau...

**physics**

The radius of curvature of a convex mirror is 1.60 x 102 cm. An object that is 11.0 cm high is placed 40.0 cm in front of this mirror. Determine (a) the location and (b) the height of the image.

**College Physics**

In 1986, the distance of closest approach of Halley’s comet to the Sun is 0.57AU. (1 AU is the mean Earth-Sun distance = 150 million kilometers.) The comet’s speed at closest approach is 54.97 km/s. (a) – By 1989, Halley’s comet had traveled to a distance c...

**Math**

Prove that: P(A n B^c) = P(A U B) - P(B) and P(A n B^c) = P(A) - P(A n B)

**Calculus**

find f'(x) if f(x)=x^2*e^x*(3x-1)^3

**Calculus**

find f'(x) if f(x)=x^2e^(x(3x-1)^3

**Calculus**

find all points at the curve x^2y^2+2xy=3 with the slope of the tsngent is -1

**Calculus**

find y'' if x^4+y^4=16

**Calculus**

Could really use a lot of help here what is the slope of the tangent line to cos(x-y)=xe^x at point (0,3pi/2)

**geometry**

you are standing 12ft from a cylindrical corn syrup tank the distance from you to a point of tangency on the tank 35ft what is the radius of the tank

**Pre-Calc**

thank you

**Pre-Calcbob pursley please recheck**

In #2 it was which one is NOT a representation , that's why I thought (-5,-30) I can't have all of them just the one that is NOT a representation Thank you

**ross**

Find dy/dx for y=e^x/x^2

**Math**

The grocery store employs 35 cashiers and grocery baggers altogether. There are 5 cashiers for every 2 grocery baggers. How many of each are employed?

**5th grade Math**

How do I solve this problem: At Carver Elementary, there are 355 students altogether. The School has 25 more female students than males. How many males and females does Carver have?

**us history**

Are there any specific examples of the belief in Social Darwinism in American imperialism? The only thing that comes to mind was the extermination/assimilation of natives, but that's more so European imperialism.

**us history**

What was the role of Social Darwinism in American imperialism? Are there implications of race underneath a belief in Social Darwinism?

**reading**

Please tell me the question and I will answer as soon as possible!

**Precalculus**

Solve the triangle ABC under the given conditions. a = 19, b = 8.2, c = 12 A= B= C=

**5th grade**

compkete the pattern 25____61____97

**Gilgamesh**

How Does Gilgamesh respond to the death of Enkidu? a) He flees the city of Uruk to seek immortality b) He builds up the city of Uruk with monuments and massive walls to honor Enkidu c) He blames the harlot lass for brining this pain and suffering on Enkidu d) He attempts to co...

**earth science**

FIND OUT YOURSELF LITTLE KID!!!!

**earth science**

If an atom has 17 electrons and its mass number is 35, calculate the following: number of protons, atomic number, and number of neutrons.

**math sci**

how can 36 stand for 1 square yard

**science/math**

sandy made a drawing of a rec tangle to show the area of the library. what is the area ,in square yards of the library? what stands for (1) square yard

**Chemistry**

In a lab we did potentiometric titrations with a mixture of NaCl/KI and AgNO3. We plotted a titration curve and found the 2 endpoints which indicate where I is and where Cl is. We are looking to find the concentration of both of the halides present, and we have the equation Ei...

**Chemistry**

The indicator used was Eriochrome Black T, and for the double titration... I don't know. I know that NaOH was added to precipitate Mg(OH)2, and then it was titrated with EDTA. Then it was left to sit for 5 minutes to dissolve any precipitated Ca(OH)2, and titrated again to...

**Chemistry**

Determine the concentration of Mg2+ (in mmol/L) in the unknown solution (Note: details and additional information to solve the problem are provided in your lab manual): Mass of EDTA: 0.606 g Volume of EDTA used in titration (step 1): 10.48 mL Volume of EDTA used in titration (...

**accounting**

$183,000

**social studies**

how did the citystate have an impact on mesopotamia?

**Physics**

How do you find the force to plug in

**Physics**

Does using (Fcos(theta))d work for this problem or should cos be replaced with sin? A cheerleader lifts his 66.4 kg partner straight up off the ground a distance of 0.718 m before releasing her.If he does this 27 times, how much work has he done?

**science**

i need information about the hydrogen molicule

**chemistry**

sorry Ksp of PbCl2 is 1.6 x 10-5

**chemistry**

Taking note of the equilibrium 4HCl(g) + O2(g) ----> 2H2(g) + 2Cl2(g). What would be the the equilibrium law expression for the balanced chemical equation?

**chemistry**

My best answer would be: HCl]4[O2] / [H2O]2[Cl2]2 Is this correct?

**chemistry**

Taking note of the equilibrium 4HCl(g) + O2(g) ----> 2H2(g) + 2Cl2(g). What would be the the equilibrium law expression for the balanced chemical equation?

**chemistry**

sorry Ksp of PbCl2 is 1.6 x 10-5

**chemistry**

What mass of NaCl should be found in 0.51 L of a saturated solution of sodium chloride if the Ksp of NaCl is assumed to be 1.5 x 10-5?

**Math Help Please**

I got this problem today in school, and I don't know how to go about soving it. Can someone show me. Thanks. Here it is. The distance s(t) between an object and its starting point is given by the antiderivative of velocity function v(t). Find the distance between the objec...

**trig**

Evaluate without using a calculator or tables sin(pi/3 - 3pi/4) The answer is - 1+ square root of 3 / 2 square root of 2 How do I get this answer?

**trig**

If 0 is less than or equal to 2theta less than or equal to pi and P(2theta)= (-7/25, 24/25), find P(theta)

**trig**

Use the half angle formula to find cos(pi/12)

**chemistry**

This may be what Im after:) Please elaborate in this reaction

**chemistry**

Where can I find the reaction that produces ethyl formate, which is Methanol and Methanoic acid?

**chemistry**

Where can I find the reaction that produces ethyl formate, which is Methanol and Methanoic acid?

**chemistry**

Can I get weblinks that show the esterification reaction which produces ethyl formate and the estirificaiton process which produces Ethyl Butyrate?

**chemistry**

Using molecular polarities, discuss the solubility of the carboxylic acids in water.

**physics**

A 0.21 kg ball on a string is whirled on a vertical circle at a constant speed. When the ball is at the three o'clock position, the tension is 18 N. (c) Is the tension in the string greater when the ball is at the twelve o'clock position or when it is at the six o'...

**physics**

A 0.21 kg ball on a string is whirled on a vertical circle at a constant speed. When the ball is at the three o'clock position, the tension is 18 N. -------------------------------------------------------------------------------- (a) How does the magnitude of the centripet...

**physics**

radius = Infinitely large velocity 30 m/s Hoe would you compute the centripetal acceleration of with the radius being infintely large?

**math**

how do you find percents and degrees when there are 50 people and not 100

**inglish**

can you show me pictures that start with the leter A?

**English**

Help! I can't find any information on the origin of the idiom/expression: Put your foot in your mouth. Please help me! "put one`s foot in one`s mouth - get into trouble by saying something embarassing or rude My colleague put his foot in his mouth when he told everyon...

**Pigskin Geography**

in which state will two games be played?

**last problem**

State the domain restriction for y = 5/(x+16)

**another one i need help with**

If f(x) = 3x, g(x) = x^2 -1, then find f(g(3))(HINT:The answer to this question should be a number not another function.) g(3) = 9 - 1 = 8, and f(g(3)) = f(8) = 24

**can somebody help me with this**

College enrollments in the United States are projected to increase from 1995 to 2005 for public and private schools. The models below give the total projected college enrollments in thousands, where x=0 represents the first year 1995. Public College: f(x) = 106x + 11,157 Priva...

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