Wednesday

July 23, 2014

July 23, 2014

Total # Posts: 2,043

**physics**

A 20 kg sled rests on a horizontal surface. if it takes 75 N to start the sled in motion and 60 N to keep it moving at a constant speed, what are the coefficients of static and kinetic friction respectively? explain please

**sciencce**

a block slides down an angle 10 incline at a constant speed. what is the coefficient of sliding friction between the block's surface and the incline?

**7th grade pre algebra**

What is The Answer To This Question Below? Evaluate (m-3.2)(m+4.1)when m=-4.1

**Organic Chemistry**

When benzyl chloride is treated with sodium iodide in acetone, it reacts much faster than 1-chlorobutane, even though both compounds are primarily alkyl chlorides. Explain this rate difference.

**Organic Chemistry**

Why is benzyl chloride reactive in both tests, whereas bromobenzene is unreactive?

**Organic Chemistry**

I think the answer to this question might be because bromide ions are better leaving groups than chloride ions. Someone please help clarify for me! Thanks in advance.

**Organic Chemistry**

In the tests with sodium iodide in acetone and silver nitrate in ethanol, why should 2-bromobutane react faster than 2-chlorobutane?

**algebra**

Need to solve. The length of a rectangle is fixed at 30cm. What width s will make the perimeter greater than 98cm? The width must be greater than _____ cm.

**algebra**

need to solve this. The function H described by H(x)=2.75x+71.48 can be used to perdict the hieght, in centimeters, of a woman whose humerus is x cm long. Perdict the hieght of a woman whose humerus is 37cm long. 37cm long is ____ cm.

**Statistics**

An automobile in surer has found that repair claims have a mean of $1520 and a stardard deviation of $770. Suppose that the next 100 claims can be ragarded as a random sample from the long-run claims process 1. What is the mean and standrd deviation of the average x(bar) of th...

**Algebra**

Solve. Ten graph. 4 x > 12 -

**Algebra**

Graph the equation using the slope and the y-intercept y-4/3 x +4

**Algebra College**

Ok I will get this typed out. 1. Suppose you are in the market for a new home and are interested in a new housing community under construction in a different city. a) The sales representative informs you that there are two floor plans still available, and there are a total of ...

**Algebra College**

Thank you for the advice. I will do that.

**Algebra College**

1. Suppose you are in the market for a new home and are interested in a new housing community under construction in a different city. a) The sales representative informs you that there are two floor plans still available, and that there are a total of 56 houses available. Use ...

**math**

hi i want to see if this works

**math**

Find all the numbers between 1 and 1000 that have 2 their only prime factor? I can't do it alone some help me!!!!!!!!!!!

**Social Studies**

what is meaning of motto,or short saying ,on the great seal

**Language Arts**

swa-swa is an example of a word from ?

**math**

A pasture has four straight sides. Three sides are 3/8 miles long. It took 1 3/8 miles of fencing to enclose the pasture. What is the length of the fourth side? Using a verbal model write an equation for this situation, where x is the length of the fourth side. Solve the equat...

**graphs**

graphs are so hard so I really need help

**calculus**

Expand the binomial: y = (x-3)^4

**calculus**

Factor the given equation: p(x) = x^3 - 25x

**calculus**

given the functions: f(x) = x^2 - 1, g(x) = x/x + 2 Why is x^2 - 1/x^2 + 1 the equation of (g o f)(x)?

**Math(algebra)**

no, I is just like I wrote it

**Math(algebra)**

Please help me solve this problem 2/5(2x-3)> please show me how this is done

**chemistry**

I have to seperate salt, sand, steel shot, copper shot, and plastic pellets(one type is heavier than water. Any help? thank you

**history**

what does it mean that the united states has a mixed economy

**Geography**

what large land feature lies between the mississippi river and the rocky mountains?

**Algebra**

How do you know if a value is a solution for an inequality? How is this different from determining if a value is a solution to an equation? If replacing the equal sign of an equation and put an inequality sign in its polace, is there ever a time when the same value will be a s...

**calculus**

Find f(x+ (delta)x)- f(x) --------------------- (delta)x if f(x)=8x(squared)+ 1 This is so confusing! What is all the delta x stuff?

**math**

a wooden pancake looking at milk wizard of gauze

**math**

a wooden pancake looking at milk wizard of gauze

**Algebra 2**

Jessica's bank contains 18 quarters & dimes, of which q are quarters. Find the total value of the coins in dollars.

**algebra**

Solve for x and y 40 / (x+y) = 2.70 40 / (x-y) = 4.70

**science can someone please check**

how does one cite this in APA form.

**writing skils**

frequently? /

**Algebra**

When equations have infinitely many solutions, How would you know this? also, when working on equations that has no solutions, How would I know this? If posible can you give me examples of each. Thank you

**urbanization**

where di i found this information about 2 award winners?

**Financial**

Suppose a Midwest Telephone and Telegraph (MTT) Company bond, maturing in 1 year, can be purchased today for $975. Assuming that the bond is held until maturity, the investor will receive $1,000 (principal) plus 6 percent interest (that is, 0.06 3 $1,000 5 $60). Determine the ...

**Calculus**

Please help explain the following: Estimate the solution of the equation f(x)= -1

**exponets**

shut up

**adult education**

I am having a difficult time accessing information for a paper I need to reasearch on The American Medical Website. The topic is ethical opinions on computer confidentiality. They give you a hint that the articles should start with an E, but I have searched for hours and just ...

**Algebra**

i need help becaus i dont know how to do it

**Algebra**

What is synthetic division? (rational expressions)

**social studies**

what is the meanining of great seal

**social studies**

That does fit...thank you very much....

**social studies**

thank you for you help.this is a crossword puzzle...9 letters..2nd letter i and 5th letter is a t....any suggestions

**social studies**

What is a group of people that has reactionary views called??

**com140**

what type of unwanted reaction you might encounter form business committee

**accounting**

can u help with accounts

**algebra 2**

how to find accerlation

**math**

Write the ratio in simplest form. The ratio of 75 seconds to 3 minutes.

**Math**

a simple process for finding rates and unite price solutions.

**Algerbra II**

Classify the system , and determine the number of solutions. The system is consistent and dependent and has infinitely many solutions. The system is inconsistent and independent and has no solutions. The system is inconsistent and dependent and has no solutions. The system is...

**algebra 2**

Classify the system , and determine the number of solutions. This system is inconsistent. It has infinitely many solutions. This system is consistent. It has infinitely many solutions. This system is inconsistent. It has no solutions. This system is consistent. It has one sol...

**Law and Ethics**

How did you find this information? I am taking the same class and have looked for hours without finding anything of value.

**english**

i need help so i may locate nouns in sentences. please help me.

**english**

what the noun in the sentence an extreme climate may affect your communication effectiveness.

**english**

what is the noun in the sentence poor gramer may result in miscommunication.

**Psychology**

Sternbergs Love Theory ... I know the 8 different types but I need the characteristics of them and I cannot find them anywhere.

**Algebra**

(11xy)¯^5/^7= 1/(11xy)¯^5/^7 Is this answer correct. Can someone tell me if I did this expression right. The instructions are to rewrite the following expression with positive exponenets.

**Algebra**

REWRITE THE FOLLOWING EXPRESSION WITH POSITIVE EXPONENETS.(11xy)¯^5/^7= 1/(11xy)¯^5/^7 .is this answer correct. cAN SOMEONE HELP ME WITH THIS EQUATION ,I AM TRYING TO LEARN.

**math**

i need help on finding the missing finger

**math**

When managing a business, it is important to take inventory of where your money is spent. You have a monthly budget of $5,000. Refer to the table below and answer the questions that follow. Round your answers to the nearest tenth of a percent. Category Cost Percentage Labor $1...

**algebra**

Hermes can travel 2 mi up Mt Olympus at a rate that is 18 mi/hr slower than he rides Pegasus down the same distance. The entire trip takes 14 min. How fast can he go up? How fast can he ride down?

**algebra**

Jackie can shell a quart of pecans twice as fast as John. Together they can shell a quart of pecans in 20 min. How long would it take John to shell a quart of pecans by himself?

**AE**

Go to the state you live in and then .gov back slash mde. Check this site out it may help you.

**math**

What pair of fractions are proportional? a. 0.4/0.1 =? 6/1.5 b. 0.4/0.1 =? 6/1.6 c. 0.4/0.1 =? 5.6/1.5 d. 0.4/0.1 =? 5.6/1.6

**Math**

Add. -3/5 + (8/35). A. 13/35 B. -13/35 c. 1/8 d. - 1/8

**Math**

Add. -3/5 + (8/3.5). A. 13/35 B. -13/35 c. 1/8 d. - 1/8

**Math**

Which pair of fraction is proportional? A) 0.4/0.1 =? 6/1.5 B) 0.4/0.1 =? 6/1.6 C) 0.4/0.1 =? 5.6/1.5 D) 0.4/0.1 =? 5.6/1.6

**Math**

Complete the statement, using the symbol < or >. 13/16 is greater than or less than 0.563

**algebra**

a^3 - 8b^3/6b^2 - ba- a^2 / 3a^3b + 6a^2b^2 + 12ab^3/ a^2 - 9b^2 perform indicated operation and reduce to lowest terms

**algebra**

4x^2 - 16x/x^2 - 16 * x^2 + 2x -8/3x^3 + 6x^2

**Algebra**

Joe invested $12000, part at 6% interest and part at 8% interest. In the first year he earned $860 in interest. How much was invested at each rate?

**english**

what does past idicative mean?i need to write 4 words in that form but dont know how?

**Biology**

Information

**Biology**

what component is present in every part of a loop such as one that involves protiens producing energetic molecules from sugar

**biology**

If youre using an up to date light microscope to examine animal cells you wont be able to detct?

**algebra**

Solve by elimination. 15x+10y=-20 3x+2y=-4

**algebra**

In 1990, a company had a profit of $1.3 million. In 1992, the company had a profit of $1.2 million. Write a linear equation giving the profit P, in millions of dollars, in terms of the year, t. Let t=0 represent 1990.

**algebra**

1/9 -K+3/72k = 1/9k - k-1/8k i can't figure out how to get rid of the denominators

**algebra**

I can't figure out (-64)^1/3. Any help would be great. and (-8)^-2/3

**algebra**

Factor 25x2-20x+4 I can't figure out what to do with 25.

**Algebra**

A boat can travel upstream 14 miles in same it can travel downstream 8 miles. the boat is traveling 13 miles per hour. what is the current

**algebra**

John takes 3 hours longer than Andrew to peel 400 pounds of apples. Together they take 8 hours. How long will it take John to peel 400 pounds by himself

**algebra**

A boat travel 4 miles upstream with a current of 5 miles per hour. It takes 40 mminutes longer to go upstream. How fast does the boat go downstream

**algebra**

identify the missing term. x^3-31

**Algebra**

Identify the missing term. x^3-31

**math**

if p has coordinates (x, y) and is located on the unit circle, what is the highest value that the x-coordinate can take? Hence, what is the largest value that the cosine of an angle can take?

**trig**

using the unit circle evaluate cos and sin for 30

**algebra**

How do I solve this???? Hat size 7 3/8 ??? head circum ( to nearest 1/5 23 1/5 ??? head circum to nearest cent.) 59 58

**algebra**

can you walk me throught this????

**algebra**

Maria bicycles 5 km/h faster than Carlos . In the same time it takes Carlos to bicycle 30 km, Maria can bicycle 45 km. How fast does each bicyclist travel?

**Algebra 2 Honors**

Write the sixth term of the sequence: t1 = 1 and tn = 3tn-1 + 1

**math**

what is 19+10s+14s+9+15s

**physics**

What difference does an astronomer see between the emission spectrum of an element in a receding star and a spectrum of the same element in the lab?

**maths**

HI THERE, COULD SOME ONE PLEASE HLEP ME ON THIS QUESTION... A sample of the near-ground air concentration of caesium-137 at 11 locations in southern Germany a few days after the Chernobyl nuclear accident in 1986 consisted of the following measurements (in Bq/m3). 5.77 3.30 7....

**science**

what happens when you mix iron and sulpher?

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