Posts by Aaron

Total # Posts: 552

Chemistry
A 0.750 g sample of an unknown solid is dissolved in 100 mL of water and acidfied with 25 mL of 3 M H2SO4 then titrated with a 0.0200 M KMnO4 solution. If the unknown solid requires 12.5 mL of the KMnO4 solution to reach the endpoint, what is the % sodium oxalate in the ...

Chemistry
calculate the ph of titration of 50.0 ml of 0.140 m hclo (aq)

Physics
Answering my own question here, but... µs (static friction) Ffs (peak frictional force) Fn (Normal force -needs to be in Newtons-) Ffs = µs * Fn 71 = µs * (18 * 9.8) 71 = µs * 176.4 71 / 176.4 = µs * 176.4 / 176.4 (isolates the variable µs...

Physics
Answering my own question here, but... µs (static friction) Ffs (peak frictional force) Fn (Normal force -needs to be in Newtons-) Ffs = µs * Fn 71 = µs * (18 * 9.8) 71 = µs * 176.4 71 / 176.4 = µs * 176.4 / 176.4 (isolates the variable µs...

Physics
A dock worker loading crates on a ship finds that a 18 kg crate, initially at rest on a horizontal surface, requires a 71 N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 46 N is required to keep it moving with a ...

Math
Ginny Katz has decided to invest $700 quarterly for 10 years in an ordinary annuity at 8 percent. The total cash value of the annuity at end of year 10 is?

math
which of the numbers below is the sum of four consecutive whole numbers

physics
A student is attempting to haul a 500 kg log down a 24 degree hill. The log has a coefficient of friction of .5. The student is pulling with about 1700 N of force. Is the student pulling too hard or too lightly? Calculate exactly how much harder or less hard the student should...

physics
If 4.5 kg object is sitting at rest on a 30 degree incline that has a coefficient of static friction of .19, what is the net force down the plane? Does it start sliding?

physics
A 10 kg mass is sitting on a 25 degree incline. A constant force of 49N is applied up the plane. The coefficient of static friction is .25. Does it go up or down or does it stay put?

math
Betty did 5 exercises in one hour.what fraction of an hour did betty complete one exercises?

math
Betty did 5 exercises in one hour.what fraction of an hour did betty complete one exercises?

math
a rope was cut in 7 equal pieces of 1/2 a piece measures 3 inch. how many inch was the rope before it was cut

science
What is the coeffitient of friction for a playground slide and a pair of sports pants?

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...

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.

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

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

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

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?

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 ...

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

College Math
Sorry

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

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

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

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

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

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

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

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

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 ...

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 ...

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

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 ...

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 ...

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

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

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

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

Chemistry Pretest
44 moles of CO2

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

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

geography
Thank you!

geography
Is there a danger of creating one global culture

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

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

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

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?

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?

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

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

5th grade religion
five members

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 ...

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

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

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

Pre-algebra
There shouldn't be a Y at the end

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?

"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:)

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?

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.

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

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?

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?

math
3 letter

help please :)
The type of life insurance often used as mortgage insurance is :

Information Technology
Hard drive is random access and Magnetic tape is sequential access

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

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

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

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.

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.

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?

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?

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

government
thanks friends :)

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.

government
What was stated in the english bill of rights?

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!

government
Which type of colony did strict governors anger the colonists?

sociology
Explain the three steps for measuring a variable.

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

sociology
Explain the three steps for measuring a variable.

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.

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

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...

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, ...

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

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!

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

English - Ms. Sue
Actually Act positively and move forward also fits, does it make sense?

English - Ms. Sue
Thanks a lot Ms. Sue =)

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 ...

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

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.

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.

English - Ms. Sue
Thanks a lot Ms. Sue =)

English - Ms. Sue
I just wrote ( Jake draws away from family) is that fine?

English - Ms. Sue
Even spaces count as letters.

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