Sunday

February 26, 2017
Total # Posts: 537

**Physics**

A vertical spring with a spring constant of 400 N/m is mounted on the floor. From directly above the spring, which is unstrained, a 0.30 kg block is dropped from rest. It collides with and sticks to the spring, which is compressed by 2.3 cm in bringing the block to a momentary...

*January 30, 2013*

**Math**

Seems to me the answer is 6, because the rectangle can then only be made in the following two ways: (1) 6x1x1 or (2) 3x2x1. In each case, the height is 1.

*January 22, 2013*

**algebra**

what the steps to this problem y=1/4x +6

*January 10, 2013*

**final review help**

find: f(x+h)-f(x)/ h when: f(x)=x^2+5x

*December 16, 2012*

**math need help**

study time in X hours 8 5 7 12 10 test grade Y in percent 68 50 62 92 80 a)model the date in a linear function b)interpret the meaning of the slope

*December 16, 2012*

**physics**

A stone is thrown upward with a speed of 20 m/s. It is caught on its way down at a point 5.0 m above where it is thrown. A) How fast was it going when it was caught? B) how long did the trip take?

*December 12, 2012*

**Physics**

A skydiver deploys his parachute when he is 950m directly above his desired landing spot. He then falls through the air at a steady 5.0 m/s . There is a breeze blowing to the west at 1.1 m/s. At what angle with respect to vertical does he fall? By what distance will he miss ...

*December 11, 2012*

**PHYSICS**

A wave on a string is described by the relation y = A sin(30t - 0.041x), where t is measured in seconds and x in meters, with A = 0.16 m. (a)Find the frequency of the wave. ____Hz (b)Find the wavelength of the wave. ___m (c)Find the speed of the wave. ___m/s

*December 5, 2012*

**College Math**

Sorry

*December 2, 2012*

**College Math**

(2x-1/x+3)+(x+4/x-6)+(3x-1/x^2-3x-18)

*December 2, 2012*

**College Math**

(2x/x^2-16)+(7/x-4)

*December 2, 2012*

**College Math**

(-2/n-6)-(6/2n+3)

*December 2, 2012*

**College Math**

1/x^2+3/4x-5/6

*December 2, 2012*

**College Math**

4x-3/6-8x-2/12

*December 2, 2012*

**College Math**

2x-1/4x^2+3(x-2)/4x^2

*December 2, 2012*

**Calculus**

d/dx[lnsquare root of(x^3) cube root of (x+3) fifth root of (3x-2)]

*December 1, 2012*

**calculus**

d/dx[lnsquare root of(x^3) cube root of (x+3) fifth root of (3x-2)]

*December 1, 2012*

**math**

the lengths of two legs of a right triangle depend on time. One, whose length is x increase at the rate of 5 feet per second, while the other, of length y, decreases at the rate of 6 feet per second. At what rate is the hypotenuse changing when x=3 and y=4? is the hypotenuse ...

*November 26, 2012*

**Physics**

A o.1 kg coin is placed on the horizontal surface of a rotating turntable at a position that is 0.12 m away from the center of the turntable. If the coefficient of static friction equals 0.3 between the coin and the turntable, what maximum speed, v, can the coin have without ...

*November 1, 2012*

**pre-algrebra**

needing to solve word problems with linear equatios, if there something to help work into them?

*October 31, 2012*

**physics**

A person holds a 1.56 baseball in his hand, a distance of 34.0 cm from the elbow joint, as shown in the figure(Figure 1) . The biceps, attached at a distance of 2.75 cm from the elbow, exerts an upward force on the forearm. Consider the forearm and hand to be a uniform rod ...

*October 25, 2012*

**Biomechanics**

If the volume of a material is conserved under loading (Volume without force = Volume with force) what is the material’s Poisson’s ratio? You can assume that the material is isotropic (it will behave the same in every direction). Hint: take a cube and increase the ...

*October 14, 2012*

**Prealgebra**

Identify the slope and y-intercept of the line with the given equation then graph the equation. Y=-2 * must use slope-intercept form

*October 6, 2012*

**Math**

Solve the following for the indicated variable. V = 1/3Bh for B (volume of a pyramid)

*October 4, 2012*

**Math**

Solve the following for the indicated variable. V=Bh for h(volume of a prism)

*October 3, 2012*

**math**

if you used the rule (6x, 6y) to transform Mug into a new figure, how would the angles of the new figure compare to Mugs angles

*October 1, 2012*

**Chemistry Pretest**

44 moles of CO2

*September 28, 2012*

**physics**

What is your average velocity if you drive a distance of 252.5 km at a speed of 41 km/h, then the same distance at a speed of 60 km/h? Answer in units of km/h

*September 27, 2012*

**Pre-algebra**

How do you write an equation to determine possible values for a perimeter =52

*September 27, 2012*

**geography**

Thank you!

*September 26, 2012*

**geography**

Is there a danger of creating one global culture

*September 26, 2012*

**Algebra**

think this is as far as it can go, the original equation

*September 26, 2012*

**Math**

I'm confused. Can you do it step by step please?

*September 24, 2012*

**Math**

I need some help solving this equation. 8x+4-4x=x-14

*September 24, 2012*

**Math**

A man built a walk of uniform width around a rectangular pool. If the area of the walk is 429 square feet and the dimensions of the pool are 10 feet by 18 feet, how wide is the walk?

*September 22, 2012*

**math**

Flying with no wind, a plane makes a 600 km trip in 3h. On the return trip, the plane flies with a 50 km/h tailwind. What is the total trip time?

*September 18, 2012*

**upland**

arrange 3/4, 1 1/6, 10/13, 1 1/3, 67/100 from smallest to largest

*September 16, 2012*

**math (4th)**

steven has a six digit number on his bike. A 2 is in the hundred thousands place, a 6 in the ones place, and a 1 in the hundredths place. Write two different numbers that could be on his bike

*September 13, 2012*

**5th grade religion**

five members

*September 5, 2012*

**math**

Can someone please help me with this word problem!?! I know the answer which is 784 feet. But I have no clue how to solve it. Can someone please show how to solve this problem? The word problem is: The melt in Your Mouth Chocolate Factory is a rectangular building. The ...

*September 4, 2012*

**Prealgebra**

Thank you for the break down, have a lot more to do...

*September 3, 2012*

**Prealgebra**

Can you help us with the work to solve the problem, we have a lot more of this type question . Thank you

*September 3, 2012*

**Prealgebra**

2/3(7x+6/7)=-160/63

*September 3, 2012*

**Pre-algebra**

There shouldn't be a Y at the end

*August 26, 2012*

**math**

Erica's average rate going uphill was 80% of her average rate going downhill over the same route, and it took Erica 10 minutes longer to go up the hill than to go down the hill. What was the total number of minutes Erica spent going uphill and downhill?

*August 18, 2012*

**"Miss Sue" Cultural Diversity**

May I suggest reading "Working with Children from Culturally Diverse Backgrounds". This should help with some of the Cultural Diversity questions that has been asked on this site. Thank you:)

*August 15, 2012*

**physics**

In a stunt for a movie, a remote controlled car is driven horizontally of the edge of a cliff at a speed of 35m/s. The car hits the ground 85m from the base of the cliff. How high is the cliff?

*August 10, 2012*

**Physics**

Elena was so close, it looks like a calculator error when calculating part A. The answer is off by a factor of ten. So 3529.9 years, not 35299.

*July 27, 2012*

**literacy**

To critically evaluate the qualifications of an author on a topic, carefully consider all of the following except the A. number and type of awards the author has received. B. author's age. C. other articles the author has written. D. author's educational background

*July 19, 2012*

**Math**

If there are 7 people at a party and four pizza's and each person eats 3/8 of the pizza. How much pizza is left?

*July 16, 2012*

**Chemistry**

3.30 mL of vinegar needs 40.0 mL of 0.150M NaOH to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.10 qt sample of this vinegar?

*June 28, 2012*

**math**

3 letter

*June 24, 2012*

**help please :)**

The type of life insurance often used as mortgage insurance is :

*June 20, 2012*

**Information Technology**

Hard drive is random access and Magnetic tape is sequential access

*May 29, 2012*

**Algebra**

Divide (42b^3 + 23b^2 + 38b + 49)/ (6b + 5)

*May 5, 2012*

**algebra ll**

Divide (42b^3 + 23b^2 + 38b + 49)/ (6b + 5)

*May 4, 2012*

**social studies**

which of the following best illlustrates how a president can use the news media to reach the largest segment of the public?

*May 3, 2012*

**chemistry**

For each of the following precipitation reactions, calculate how many grams of the first reactant are necessary to completely react with 17.5 of the second reactant.

*April 27, 2012*

**engineering science**

a bale of weight 200 newtons hanged at the end of a rope.find the acceleration of the bale if the tension in the rope is 200 newtons,150 newtons,300 newtons.

*April 17, 2012*

**physics**

A violin string vibrates at 440 Hz when unfingered. At what frequency will it vibrate if it is fingered one fourth of the way down from the end?

*April 6, 2012*

**physics**

A 0.11 kg mass suspended on a spring is pulled to 6.9 cm below its equilibrium position and released. When the mass passes through the equilibrium position, it has a speed of 0.28 m/s. What is the speed of the mass when it is 4.1 cm from the equilibrium position?

*April 6, 2012*

**History**

Answer is B Sole propietorships are small biz, since they are owned by a single individual, who is personally responsible for all losses and debts

*April 6, 2012*

**government**

thanks friends :)

*April 3, 2012*

**government**

A) American colonists could be independent. B) A person charged with a crime could have a jury trial. C) The king could not force colonists to make loans. D) The king could not force colonists to pay high taxes.

*April 3, 2012*

**government**

What was stated in the english bill of rights?

*April 3, 2012*

**government**

well the answer chooses are A. the royal colonies B. the proprietary colonies C. the charter colonies D. the informed colonies But i don't know which one it is!

*April 3, 2012*

**government**

Which type of colony did strict governors anger the colonists?

*April 3, 2012*

**sociology**

Explain the three steps for measuring a variable.

*March 11, 2012*

**sociology**

But, does the question involve with terms like conceptualization and operationalization. I still do not know how to answer the question?

*March 11, 2012*

**sociology**

Explain the three steps for measuring a variable.

*March 11, 2012*

**health 3 ms sue**

I'm attending the same school as u r and had the same question. The question deals with the muscular system, B deals with the nervous system, and C deals with thought.

*March 4, 2012*

**health**

i don't think its c or d but a n b both can be true

*March 4, 2012*

**Calculus theory**

Determine if the statement is always true, sometimes true, or never true. If y is a function of x, and is also a function of t. then dy/dx = dy/dt explain. i think its sometimes true but i don't know why it is. am i right?, and can you please explain me y this is the case...

*March 1, 2012*

**Calculus**

but what if its not a quadratic function?.. isn't it possible to have a function that has two zeros but is not a quadratic.. for example the first zero is passed by a cubic kind of curve that is connected to a straight line going to the other zero? so would it be quintic, ...

*March 1, 2012*

**Calculus**

is it some times true or always true?? that's the question

*March 1, 2012*

**Calculus**

If f(x) has zeros at x=a, and x=b, the x coordinate of the turning point between x= a and x=b is 1/2(a+b). PLease help i don't understand this!

*March 1, 2012*

**algebra**

f(x) = 1-4x, (gof)(x) = 5-2x find g(x)

*February 29, 2012*

**English - Ms. Sue**

Actually Act positively and move forward also fits, does it make sense?

*February 22, 2012*

**English - Ms. Sue**

Thanks a lot Ms. Sue =)

*February 22, 2012*

**English - Ms. Sue**

For my slideshow I had wrote down - - Jake draws away from everyone. But corrected it to withdraw, so would that be like - -Jake withdraws away from everyone, or Jake withdraws from everyone? I also wrote - - to act positive and move on, but she corrected me and said ...

*February 22, 2012*

**English - Ms. Sue**

Thanks Ms. Sue for my header I used - Telephone Affection. Is that fine?

*February 21, 2012*

**English - Ms. Sue**

I don't get how to make this smaller. “It’s me, she said. Mother. I was almost glad to hear her, But something must be wrong. She never phoned me.” On the telephone, Jake felt some affection for his mom.

*February 21, 2012*

**English - Ms. Sue**

Ms. Sue how am I supposed to shorten down the quotes? I can't do that otherwise they won't be considered quotes.

*February 21, 2012*

**English - Ms. Sue**

Thanks a lot Ms. Sue =)

*February 21, 2012*

**English - Ms. Sue**

I just wrote ( Jake draws away from family) is that fine?

*February 21, 2012*

**English - Ms. Sue**

Even spaces count as letters.

*February 21, 2012*

**English - Ms. Sue**

Ms. Sue having loads of trouble here could you please help me? Actually Mohammad and I just went on the site Animoto and it won't let us put full sentences. Maximum letter count is 30. Exactly how do I shorten this sentence? Jake draws himself away from everyone and thinks...

*February 21, 2012*

**English - Ms. Sue**

Could you also please delete this post. Don't want others to copy and paste my work.

*February 20, 2012*

**English - Ms. Sue**

Thanks Ms. Sue you know what title I could use for one of these images?

*February 20, 2012*

**English - Ms. Sue**

Like Mohammad, I'm going from darkness to lightness so I'm not sure what image to add for the second slide. Is there something that represents a mood in which you feel lonely and can't express your feelings?

*February 20, 2012*

**English - Ms. Sue**

Thanks so much Ms. Sue can you suggest me a title I can use for this presentation? I'd like to add a header for my second slide.

*February 20, 2012*

**English - Ms. Sue**

Thanks very much Ms. Sue =D

*February 20, 2012*

**English - Ms. Sue**

Thanks so much Ms. Sue I will definitely add that to my essay which I'm working on. So then the theme would be --Take positive action and look ahead-- And nice to meet you Ms. Sue :) I will post my essay as soon as I'm finished writing it, and if you could also drop it...

*February 20, 2012*

**English - Ms. Sue**

Hi Ms. Sue I’m Aaron and I’m Mohammad’s friend, I helped Mohammad edit his, and I’m also doing a theme on the story “A few notes for Orpheus” and could gladly use your help. As Mohammad had pointed out before that the title is a musical tribute to...

*February 20, 2012*

**Calculus**

Find the volume of the solid by subtracting two volumes, the solid enclosed by the parabolic cylinders y = 1 - x 2, y = x 2 - 1 and the planes x + y + z = 2, 6x + y - z + 16 = 0.

*February 16, 2012*

**Physics**

It’s a beautiful winter day, and you and your friend are throwing around a 5 kg medicine ball on a very slippery frozen lake. You throw the ball toward your friend, and notice that you subsequently slide backwards with a speed of 1 m/s. If your mass is 60 kg, how fast did...

*February 13, 2012*

**Engineering**

The angular velocity of a rigid body rotating about an axis of rotation is w = 5^i + 2^j - 4^k rad. per. sec. Determine the linear velocity of point B on the body with a position vector r = 3^i - ^j + 3^k ft. directed from a point on the axis of rotation. Would the solution ...

*February 12, 2012*

**Engineering/Physics**

Ah, I knew there must be something off about my answer. Thank you so much!!!

*February 12, 2012*

**Engineering/Physics**

A force F = 7^i + 6^j - 5^k lb. acts at the origin. Find the magnitude and direction cosines of the moment of this force about point A (-4; 5; 6) ft So in this case wouldn't vector r= -4i +5j +6k and vector F = 7i + 6j - 5k lb? and r X F = -61i +22j -59k = MA [MA]= 87.67 ...

*February 12, 2012*

**Engineering**

A force of 26 lb. acts through a point (4; 5; -7) ft. and is equally inclined to the positive ends of the orthogonal axes. What is the moment of this force about the origin So i'm assuming vector r is 4i+5j-7k? And using the fact that cos^2α + cos^2β + cos^2γ...

*February 12, 2012*