Friday
December 9, 2016

# Posts by Julia

Total # Posts: 633

Physics
A 250N force is applied at an angle of 32 degrees above the horizontal to a 96kg box causing it to slide along a floor. The coefficient of friction between the box and the floor is 0.18. What is the magnitude of the net force on the box? The answer is 67N, I'm just not ...
March 10, 2013

Physics
A box is held against a wall (not resting on the ground). What minimum horizontal force will JUST prevent the 5.0kg box from sliding if the coefficient of friction betweent he wall and the box is 0.65?
March 10, 2013

Biology
A golgi body is used to package proteins and lipids into vesicles for transport, so it's probably a cell that produces proteins or lipids or both.
March 10, 2013

social studies
- languages - if their mother country went to war, would they join (eg. WWI (Canada): british immigrants wanted to join Britain, but french immigrants felt no connection to Britain and wanted to stay out of the war...) - school systems - religion ...the list goes on, I'm ...
March 10, 2013

algebra I
how do I solve for 16x^2+56x-120
March 6, 2013

Algebra
isn't it: [(26^4)+ (10^3)]-241
March 6, 2013

french
what is the weather like in Spring?
March 2, 2013

German
This IS grammatically correct, but it sounds weird (no offense :P). It means "I would rather put on make-up than he would", more or less. There would be better-sounding ways to say this although it is correct.
March 1, 2013

math
The application of one function followed by the application of a second function to the result of the first as in F^-1(f(x)) is called composition of functions. The two functions need not be inverse of each other. In a diagram, the output of one function is f(x) is used as the...
February 10, 2013

physics
The launching speed of a certain projectile is 3.0 times the speed it has at its maximum height. Calculate the elevation angle at launching
February 8, 2013

Chemistry
Thank you so much for the detailed steps. Finally understood what I need to do.
February 7, 2013

Chemistry
Calculate the value of Kp for the equation C(s)+CO2(g)<->2CO(g) Kp=? given that at a certain temperature C(s)+2H2O(g)<->CO2(g)+2H2(g) Kp1=3.33 H2(g)+CO2(g)<->H2O(g)+CO(g) Kp2=.733 Please show detailed steps.
February 7, 2013

Physics please help!!
A basketball player throws the ball at a 38° angle above the horizontal to a hoop which is located a horizontal distance L = 5.6 m from the point of release and at a height h = 0.4 m above it. What is the required speed if the basketball is to reach the hoop? Not sure how ...
February 5, 2013

Physics please help!!
A stone is aimed at a cliff of height h with an initial speed of v = 64.0 m/s directed 55.0° above the horizontal, as shown in the Figure below by the arrow. The stone strikes at A, 7.31 s after launching. What is the height of the cliff? What is the maximum height H ...
February 5, 2013

Physics please help!!
A person who is 1.4 m tall throws a ball with a speed of 4.2 m/s at an angle of 25 degrees above the horizontal. What are the x and y components of the velocity (in m/s) of the ball the instant before it strikes the ground? The acceleration due to gravity is 10 m/s2
February 5, 2013

Physics please help!!
The launching speed of a certain projectile is 9.0 times the speed it has at its maximum height. Calculate the elevation angle at launching.
February 3, 2013

Physics please help!!
A projectile is fired at 45.0° above the horizontal. Its initial speed is equal to 42.5 m/s. Assume that the free-fall acceleration is constant throughout and that the effects of the air can be ignored. What is the maximum height reached by the projectile? At what time ...
February 3, 2013

Physics please help!!
A person who is 1.4 m tall throws a ball with a speed of 4.2 m/s at an angle of 25 degrees above the horizontal. What are the x and y components of the velocity (in m/s) of the ball the instant before it strikes the ground? The acceleration due to gravity is 10 m/s2
February 3, 2013

Language
Oh, hahah, I wasn't thinking right. I looked back over the question and I am almost possitive that is it #3.
January 29, 2013

Language
Sorry, I don't understand what you are saying, What text?
January 29, 2013

Language
What are the three main parts of a research report? 1.title, body, conclusion 2.introduction, body, sources 3.introduction, body, conclusion 4.introduction, evidence, conclusion and I just need it checked, I believe that it is #4...is that right?
January 29, 2013

Physics
You hang mass m=0.22 kg on a spring with constant 12 N/m. You pull the mass down a distance of 0.04 m from its equilibrium position and release it. You measure the period to be 0.85 s. If you instead pull the mass down 0.12 m from its equilibrium position and release it, what ...
January 24, 2013

math
a flagpole casts a shadow 10 ft. long if a man 6 ft. tall casts a shadow 4 ft. long at the same time of day, how tall is the flagpole.
January 21, 2013

CHEMISTRY
Silicon (50 g) has been doped with 27 mg of antimony (Sb). Determine the concentration of free charge carriers (carriers/cm3) at room temperature in this material. Calculate the absorption edge of this material. Express your answer as a wavenumber in units of inverse meters
January 12, 2013

chemistry
The solubility of bismuth iodide (BiI3) in water is 9.491 x 10-3 M. Calculate the value of the solubility product. The dissolution products are Bi3+(aq) and I−(aq)
January 12, 2013

math
C. Bar graph Bar graph is used to compare discrete data
January 9, 2013

MATH I HAVE ASKED TWICE ALREADY!!!!!!!!!
There will be more than one answer. To have a remainder of 8, the divisor must be greater than 8. The only single digit greater than 8 is 9, so 9 must be the divisor. Since 8 is 1 less than 9, the dividend needs to be one less than a multiple of 9. Candidates are values of 3 ...
January 6, 2013

English
Scotland
January 6, 2013

Math
Um so what's the answer, 35 or 12??
December 26, 2012

English - Ms. Sue help
I just took this and it is actullly, 1.b 2.c 3.b 4.c not even kidding....Promise!
December 19, 2012

Statistics
Is is possible for the regression equation to have none of the actual (observed) data points located on the regression line?
December 2, 2012

Statistics
If a research report contains the results of an independent measures ANOVA as follows: F(3,28) = 5.36, p<.01 the study only compared two groups rather than three correct?
December 2, 2012

math
"the area of the region under the graph" is an integral of f(x) from a to b, in your case from 4 to 10. ∫ f(x) from 4 to 10=∫ (10x-5)dx from 4 to 10. you just have to compute the integral and that will give you: 1/2*10x^2-5x evaluate it from 4 to 10 I ...
November 30, 2012

Math
Do you have any information about length of the sides maybe? By the way you do have information about at least one angle and it's 90 degrees (because triangle is a right one)
November 30, 2012

Math
I posted the answer under your previous question.
November 29, 2012

Math
The formula is y-y1= m*(x-x1) 1. Find the midpoint= [(x1-x2)/2, (y1-y2)/2] you will get (-4,-2) 2. Find slope m1= [2-(-6)]/[-7-(-1)]= 8/-6=-4/3 3. find the slope of the perpendicular line m1*m2=-1 -4/3*m2= -1 m2= 3/4 4. Plug in given points (-7,2) and (-1,-6) and m2 in the ...
November 29, 2012

math
Did you provide the all information? Because all you can do with the given information is to plug P=4 into the equation and find x, but x is quantity of CD demanded. Consumer surplus is the difference between the max price a consumer willing to pay and the actual price they do...
November 28, 2012

Math
2.4*7.5+6*1=24
November 28, 2012

math
You start with 4 matches, then you add only three more to get another (attached to the fist one) square. Then each time to get one more square you add 3 more matches. Now, let x be a number of squares you can make from a given number of matches. Then 4+3*(x-1)=100. I used (x-1...
November 28, 2012

math
You should first convert 1.4t into kg. Then from that number subscribe empty trailer's mass and you will get the answer
November 28, 2012

math
Divide distance 4 1/2 by 1 1/2 you will get 3 (miles per hour). Please check exact math using the calculator but I believe it is right
November 27, 2012

math pls help Ms Sue
Sorry for misspells! Getting late!
November 27, 2012

math pls help Ms Sue
I am not sure with one, m or n, is an input and which one is output. But I believe the following rule can work: To get n: 15-3, 10-2, 5-1, 0-0 . As you can see each time the number (3,2,1,0) that you have to subscribe to get n is getting smaller by one. (if m is an input, but ...
November 27, 2012

math
I posted the answer in your latest question
November 27, 2012

Math
I think margin of error is 0.08, because if 0.5-0.08=0.42 (or 42%) and 0.5-0.08=.58 (or 58%) so 0.08 works perfectly
November 27, 2012

math
I believe first you need to add them 38+26=64, and then 10+54=64
November 27, 2012

Calculus
1/6(8+t)^6+constant
November 27, 2012

7th grade math
2A. 329.00*15%= 329.00*0.15=\$49.35 this is the discount. 329 - discount = 329 -49.35=\$279.65 discounted price 2B. 329*10%=329*0.1=32.9 is how much more the ipad will cost compared to the old price (increase in price). Now add it to the old price: 329 + 32.9=\$361.9 is new price...
November 27, 2012

7th grade math
1A. 12.99*5%=12.99*.05=0.65 this is the sale tax 12.99 + 0.65= 13.64 is the price after tax 1B. 12.99*20%=12.99*0.2=\$2.6 is discount 12.99 - discount= 12.99 - 2.6=10.39 is the price after discount was applied 10.39*5%=10.4*0.05=0.52 is the tax 10.39+.52=\$10.91 is the price ...
November 27, 2012

physics
A 66.0 kg rider sitting on a 7.1 kg bike is riding along at 9.4 m/s in the positive direction. The rider drags a foot on the ground and slows down to 6.5 m/s still in the positive direction. What is the change in momentum of the rider and bike?
November 26, 2012

Algebra 2
Te arch of the Sydeny Harbor Bridge can be modeled by y= -0.00211x^2 + 1.06x where x is the distance (in meters) from the left pylons and y is the height (in meters) of the arch above the water. For what distances x is the arch above the road? (It has a picture and in it the ...
November 24, 2012

counting up method
how do you do the counting up method
November 19, 2012

math
24 marbles
November 18, 2012

AP Global
Please, help! How did Islam unite and effectively rule diverse people and cultures?
November 18, 2012

English - Ms. Sue help
I just need an answer to No. 9 on the CCA Lang. Art test: "Rewrite the first stanza of "Scott's Goodbye" ,as free verse. I don't really understand "stanza", and "free verse"?
November 13, 2012

Science
Thanks a bunch!
November 12, 2012

Science
I have been thinking of something to do for my schools science fair for weeks and my teacher keeps telling me that i can't do my idea because its too easy for an honors student. I'm all out of ideas and I need help! Please!
November 12, 2012

math
what is the reciprocal of 3 5/7
November 10, 2012

Algebra 2
What's the solution?
November 7, 2012

Algebra 2
D-R=1550+42t-15t=1550=27t
November 7, 2012

algebra 2
Previos: D(t)=1550+42t-15t=1550=27t (t represtentnig time) Based on the function for D, what would be the total amount of non functional components in 2014? Let 1993 be represented by 0.
November 6, 2012

world history
Constitutional Monarchy :)
November 6, 2012

English HELP!!!!!
I have to find a antonym for atmosphere. Help please!!!
October 17, 2012

physics
A frictionless30degrees incline should provide an acceleration of 4.90m/s2 down the incline. A student with a stopwatch finds that an object, starting from rest, slides down a 15m very smooth incline in exactly 3s. Is the incline frictionless?
October 9, 2012

Math
looked it up helped allot! (:c)
October 5, 2012

Math
what i don't understand
September 17, 2012

health
lol wow same here i justjoined the ashworth family...
August 11, 2012

HEALTH
lol, so immature
July 28, 2012

computers
Although label choices vary for different printers, your textbook recommends __________ for laser and ink jet printers. A. Avery standard, 5160, Address B. Avery standard, 6150, Label C. Avery standard, 6150, Address D. Avery standard, 5160, Label I've looked through the ...
June 27, 2012

early childhood
When children learning. Alphabet which do they recognize first. A.oc B.kc C.br D.te Answer This Question
June 12, 2012

Derivatives?
Given that f(-0.5)=2 and f'(-0.5)=4, use a tangent line approximation to estimate f(0). The lesson is not very clear on what a tangent line approximaton is.
June 5, 2012

algebra
suppose 25 bacteria settle into a cut on.your arem and begin to double.every thirty minutes. creste s table where x is the number of minutes and y is the number of bacteria
June 5, 2012

Math
I believe you would add the four months together and divide by 4 to get your average. With rounding, I got \$4,850.
May 27, 2012

Cost Accounting
Budgeted material costs 1,000 Budgeted labor costs 2,000 Budgeted overhead costs 1,500 Actual material costs 900 Actual labor costs 1,800 Actual overhead costs 1,250 1/1 WIP = 0 12/31 WIP = 2 1) Materials 25 Labor 20 2) Materials 15 Labor 32 Compute the overhead allocation ...
May 27, 2012

physics
I had been looking online for the answer to this question for 3 hours and this is the only process that I found was right THANK YOU
May 27, 2012

physics
Thank you Elena! :)
May 25, 2012

physics
Adam?...Elena thanks for the answer, but it says its wrong.
May 25, 2012

physics
A highway curve has a radius of 123 m. At what angle should the road be banked so that a car traveling at 26.5 m/s has no tendency to skid sideways on the road? [Hint: No tendency to skid means the frictional force is zero.] I can't get this one right either please someone...
May 25, 2012

physics
A car drives around a curve with radius 390 m at a speed of 32 m/s. The road is not banked. The mass of the car is 1200 kg. (a) What is the frictional force on the car? N c) Explain I really don't know how to solve this could someone please help me out on this. Thank you.
May 25, 2012

Math
6/20 7/20 8/20 9/20 10/20 1/2 11/20 12/20
May 14, 2012

physics
A person walks 1 mile every day for exercise leaving her front porch at 9:00 am and returning to her porch at 9:25 am what's the total displacement of her daily walk?
April 23, 2012

physics
A person walks 1 mile every day for exercise leaving her front porch at 9:00 am and returning to her porch at 9:25 am what's the total displacement of her daily walk?
April 23, 2012

math
oooooooohhhhhh so it's bigger than before!!!
April 19, 2012

math
when a cross tile is placed on a number plane the centre number is the average of al the numbers covered. Explain why
April 16, 2012

Physics
A cylindrical 7.00-kg reel with a radius of 0.60 m and a frictionless axle, starts from rest and speeds up uniformly as a 3.00-kg bucket falls into a well, making a light rope unwind from the reel (Fig. P8.36). The bucket starts from rest and falls for 5.00s. (a) What is the ...
April 11, 2012

Chemistry
If you have 250 mL of 2 M of sodium sulfate diluted to make 0.500 M of sodium sulfate, how would you figure out the volume?
April 10, 2012

Physics
A dog, with a mass of 8.0 kg, is standing on a flatboat so that he is 26.8 m from the shore. He walks 8.6 m on the boat toward the shore and then stops. The boat has a mass of 36.0 kg. Assuming there is no friction between the boat and the water, how far is the dog from the ...
March 27, 2012

physics
Three identical uniform meter sticks are placed on the floor. The first stick lies along the y axis from y = 0.470 m to y = 1.47 m. The second stick lies along the x axis from x = 0.320 m to x = 1.32 m. The third stick is positioned so that one end is on the x axis at x = 0....
March 26, 2012

Math
how do you make this into an equation? whats the x and y intercept? She has two jobs, at her first job she makes \$10 per hour, at her second job she makes \$12 per hour. last week she made \$440.
March 22, 2012

Algebra
how do you make this into an equation? whats the x and y intercept? She has two jobs, at her first job she makes \$10 per hour, at her second job she makes \$12 per hour. last week she made \$440.
March 22, 2012

Geometry
The answer is 413 km.
March 19, 2012

Physics
If the scuba diver is looking from the water n=1.33 and the other man is above water so n=1, use the equation n1sin(theta)=n2sin(theta). 1.33sin(20)=1sin(theta) 27.06 degrees is the answer, but since it says from the horizontal do 90-27.06
March 17, 2012

Science
PLEASE HELP ME!!!!! Which requires more energy? Heating up a 350 mL cup of coffee from 25C to 65C? or Warming the surface of a Lake (2,000,000,000 mL) from 28C to 29C. and Prove your answer.
March 7, 2012

math
45 is the second answer to the second question.i don't know the first question
March 6, 2012

physical
Thank you for your help!!!
February 12, 2012

physical
Consider a pulse of laser light aimed at the moon that bounces back to earth. The distance between Earth and Moon is 3.8 x 10 (small eight above) m. Show that the round-trip time for the light is 2.5 s.
February 12, 2012

physics
A student argues that as a satellite orbits the earth in a circular path, it moves with a constant velocity and therefore has no acceleration. The professor claims that the student is wrong since the satellite must have a centripetal acceleration as it moves in its circular ...
February 8, 2012

math
L = 2w W = w A=Lxw 200= (2w) (w) 200 = 2w^2 200 = 2w^2 200 divided by 2 = w^2 100 = w^2 square root of 100 = w w= 10 Therefore the length is 20 and the width is 10.
January 29, 2012

1. Pages:
2. <<Prev
3. 1
4. 2
5. 3
6. 4
7. 5
8. 6
9. 7
10. Next>>