# Posts by justin

Total # Posts: 963

Physics
This is not correct. The answer is simply as follows: Let f* be the fundamental frequency. Then f*[(1/4)-(1/7)]=144Hz. f* = 1344 Hz

math
The number of Roberto's baseball cards is 3/4 the number of David's cards. If Roberto gives 1/2 of his cards to David, what will be the ratio of Roberto's cards to David's cards?

algebra
If a car goes 0-85mph in 500' How many seconds does it take to get there?

Math
Roger knows how many keys a piano has. He knows that some of the keys are broken. How can he find the number of keys that work?

Math
a mother wants to invest 5000 for her sons future education. She invests a portion of the money in a bank certificate of deposit which earns 4% and the remainder in a savings bond that earns 7%. If the total interest earned after one year is $300.00,how much money was invested... Math A bowling ball is dropped from a bridge, and it takes 7 seconds to hit the ground. How far did the bowling ball fall? Math 2x^3-x^2-6x / 2x^2-7x+6 Math Please factor 2x^2-xy-y^2 Briefly explain steps Math X^4y^3-x^2y5 math In Samuel's sports memorabilia collection there are 27 hockey items, 36 baseball items, and 29 football items. Which pair of item classifications (hockey, baseball, football) exists in the largest ratio? geometry Suppose the coordinate of p=2 and PQ=8 and PR=12. Whare are the possible mid point for line segment PQ? A.-2 &8 B. 2 & 6 C.-2 & 6 D.-2 Physics 200/1.5=133 art Compare and contrast the modern day art of David smith "cubi series" with that of stonehedge in regards to the elements of art. Can anyone please help me this biology please !!! Thanks for your help Can anyone please help me this biology please !!! I am really stuck in this biology it super hard how do yeast cells benefit from fermentation ?I wil be happy if anyone would help me out thanks. Physics What is the gravitational force between two runners standing 100 meters apart on a track, if their masses are 60 kg and 75 kg respectively? chemistry copper (II) flourine comtains 37.42 % of mass. use this percentage to calculate the mass of flourine in grams contained in 28.5 g of copper (II) flourine math convert 50 miles per hour in feetvper second(round to the nearest whole.) math A jet plane traveling at 500 mph overtakes a propeller plane traveling at 200 mph that had a 2-hour head start. How far from the starting point are the plains? math Supppose two trains leave Holbrook, Arizona, at the same time, traveling in opposite directions. One train travels 10 mph faster than the other. In 3.5 hours, the trains are 322 miles apart. Find the speed of each train. math A pilot can travel 400 miles with the wind in the same amount of time as 336 miles against the wind. Find the speed of the wind if the pilot's speed in still air is 230 miles per hour. math Thank you. Math A person is pulling a freight cart with a force of 70 pounds. How much work is done in moving the cart 120 feet if the cart's handle makes an angle of 18° with the ground science i still don't know what to do for my science fair please help thank you justin science PLEASE HELP I NEED A GOOD SCIENCE FAIR PROJECT. PLEASE HELP THANK YOU JUSTIN science/math write and solve an algebraic equation to find the original mass of the sample of the radioactive isotope uranium -235, which has a half-life of 704 million years your sample is about 700 million years old and weighs 120 grams algebra -700+35x= y x- every minute the rate ascends y- the total meters *Im not sure if I'm right, hope this helps* CAN ANYONE HELP !MATH Kale is building a small basement suite. The bathroom takes up 1/3 of the suite and has an area of 12m2. 1. Draw the room and label all the areas 3. what is the area of the rest of the suite without the bathroom? 4.what is the perimeter of the basement suite? I FIGURED #2 SO ... CAN ANYONE HELP!!! I HAVE BEEN STUCK ON THIS PROBLEM FOR 3 HOURS!!!!!! Math Help Please *no one Math Help Please Ms Sue why did u give me that link. It just takes me back to the question i had posted before. None helped me on it. And yes I know the formula for the area and perimeter. That's common sense. I really need help though. Especially on #3 and 4 so can someone actually help ... Math Help Please Kale is building a small basement suite. The bathroom takes up 1/3 of the suite and has an area of 12m2. 1. Draw the room and label all the areas 2. what are the possible dimensions of the bathroom? 3. what is the area of the rest of the suite without the bathroom? 4.what is ... Math Help Please Please help me on the other questions . thanks Math Help Please its a rectangle. Math Help Please Kale is building a small basement suite. The bathroom takes up 1/3 of the suite and has an area of 12m2. 1. Draw the room and label all the areas 2. what are the possible dimensions of the bathroom? 3. what is the area of the rest of the suite without the bathroom? 4.what is ... Math Please Check!! Thank you :D Math Please Check!! Please check my answer to see if I got it right. Thanks. Braden has 1 hour of math homework to do. He spends 2/5 of this time complaining about how much he hates math, 1/3 of the total time looking for his calculator. How much time does Braden actually work on his math ... Math Please check my answer to see if I got it right. Braden has 1 hour of math homework to do. He spends 2/5 of this time complaining about how much he hates math, 1/3 of the total time looking for his calculator. How much time does Braden actually work on his math homework? My ... Math thanks for the help :) Math Please check my answers and if there are any other possibilities then please tell me. List all the factors for 45: I got 1x45, 3x15 and 9x5. are there anymore? math I think it is 84 math Yuki's age is four years more than one-fourth of Xena's age. Xena's age is 21 years and 6 months more than seven-eighths of Yuki's age. How old are Xena and Yuki? Thank you. math y=1/4x+y x=21.5+7y/8 math (2/3-5/12)^2+(-5/6-2/3)^2 math the lenght of a rectangle is one meter more more than two-thirds of the width. Find the length, width and area of the rectangle if the perimeter is 6 meters. chemistry re crystalizing describe basic steps to take re-crystalizing synthesized aspirin. using two solvents to perform this task (ethanol and water)which solvent should be used to dissolve the aspirin and which one should force it out of the solution Stat Help The Momoland Springs Company claims that there are at most 1 ppm (parts per million) of benzene in their water. Test at a=.10 n=25 = 1.10 ppm s = .20 ppm Statistics Please help! A company claims that cancer patients using drug X will live at least 8 more years. n=25 = 8.5 year s = 1.5 year a) Test at a=.01 b) Give the CIE at 95% pyshc101 As Bridget is walking through a parking lot, a bicyclist swerves toward her. Her heart races and sweat breaks out as she jumps out of harm’s way. Soon, Bridget’s heart begins to decrease and return to a regular rhythm. This calming reaction is due to the action of ... Physics 236.4+.24F physics help i still dont get it i forgot to divide the sqrt by 2.5 to get .116 sorry but thank u physics help i still dont get it Thank you so much but its just upsetting me i cant figure it out physics help i still dont get it ill try it but i have no idea how you get the angle appreciate it physics help i still dont get it A picture of width 43.0 cm, weighing 52.0 N, hangs from a nail by means of flexible wire attached to the sides of the picture frame. The midpoint of the wire passes over the nail, which is 2.50 cm higher than the points where the wire is attached to the frame. Find the tension... physics When a 0.116 kg mass is suspended at rest from a certain spring, the spring stretches 3.50 cm. Find the instantaneous acceleration of the mass when it is raised 5.70 cm, compressing the spring 2.20 cm physics need help bad A picture of width 43.0 cm, weighing 52.0 N, hangs from a nail by means of flexible wire attached to the sides of the picture frame. The midpoint of the wire passes over the nail, which is 2.50 cm higher than the points where the wire is attached to the frame. Find the tension... need help whats the answer so i can compare need help A picture of width 43.0 cm, weighing 52.0 N, hangs from a nail by means of flexible wire attached to the sides of the picture frame. The midpoint of the wire passes over the nail, which is 2.50 cm higher than the points where the wire is attached to the frame. Find the tension... cis210 No idea physics When a 0.116 kg mass is suspended at rest from a certain spring, the spring stretches 3.50 cm. Find the instantaneous acceleration of the mass when it is raised 5.70 cm, compressing the spring 2.20 cm physics When a 0.116 kg mass is suspended at rest from a certain spring, the spring stretches 3.50 cm. Find the instantaneous acceleration of the mass when it is raised 5.70 cm, compressing the spring 2.20 cm physics When a 0.116 kg mass is suspended at rest from a certain spring, the spring stretches 3.50 cm. Find the instantaneous acceleration of the mass when it is raised 5.70 cm, compressing the spring 2.20 cm math WHAT YOU NEED HELP WITH HUN math A company produces three types of color TVs: Models X, Y and Z. Each model X requires 2 hours of electronic work and 2 hours of assembly work. Each Y model requires 1 hour of electronic work and 3 hours of assembly work. Each model Z requires 3 hours of electronic work and 2 ... Maths, Ratio Mrs Rama uses 0.4 liters of water melon juice for every 0.9 liters of apple juice to make a jug of mixed fruit juice. A) Find the ratio of the amount of watermelon juice to the amount of apple juice. B) For every 225 ml of apple juice, how much watermelon juice should Mrs Rama... Physics The person in the drawing is standing on crutches. Assume that the force exerted on each crutch by the ground is directed along the crutch, as the force vectors in the drawing indicate. If the coefficient of static friction between a crutch and the ground is 1.12, determine ... Physics A car is towing a boat on a trailer. The driver starts from rest and accelerates to a velocity of +14 m/s in a time of 25 s. The combined mass of the boat and trailer is 401 kg. The frictional force acting on the trailer can be ignored. What is the tension in the hitch that ... chemistry Copper (II) fluoride contains 37.42% {\rm F} by mass. Use this percentage to calculate the mass of fluorine (in {\rm g}) contained in 56.0{\rm g} of copper (II) fluoride Math-Stats 1/2000= 0.0005 produces a payout of -$14800.00 1/500= 0.002 = 4/2000 produces a payout of -\$3800 399/400= 0.9975= 1995/2000 profits Question One Probability table is a follows X----(neg)14800---(neg)3800--200 P(x)-1/2000-------4/2000-----1995/2000 Question two Expect Value= ...

science
what is the density of a piece of wood that has a mass of 85.0 grams and a volume of 100.0 cm 3 ?

Chem 204 Lab
Dr. S. N. Too ran the above reaction using 10.00 g of 1,5-pentanediol and 7.00 g of HCl. He obtained 9.23 g of 1,5-dichloropentane. What was his per cent yield? HO(CH2)5OH + 2 HCl --------> Cl(CH2)5Cl + 2 H2O

Chem Lab
@Drbob222 2-methyl-2-butanol

Chem Lab
Why should the temperature be kept 48C during distillation? is it because of the melting point?

math
How can I put A={1,4,7,10,13,16,19,22,25,28} in set builder notation. I just learned this and can't figure it out.

economic
How do corporate America's acceptance of greed influence how we behave in a capitalist society?

It has to mean Jesus because it says it in the name and everyone really need to stop saying in the name in the father,son,and holy spirit, so all of you pray with me please with god amen.

Health
How many American adults does OCD affect each year? A. 1.2 million B. 2.2 million C. 3.2 million D. 4.2 million I put D and missed it. D:

Health
Thank you. I figured it wasn't mercury or cholesterol but i've never heard of Potassium. :P Thank you Ms.Sue! <3

Health
It’s important to choose foods that provide more ________. A. Potassium B. Cholesterol C. Mercury D. Carbohydrates I put D and got it wrong.. What could it be?

HEALTH
Yes, it's A.

health
No. It's D. they are both uninucleated. Meaning having one nucleus.

HEALTH
You're correct.

physics
the other equation you can use use is: Vf^2=Vi^2+2AX sqrt(2(3m/s^2)(500m))=54.78 m/s same thing. for the second part you use the same equation and solve for A. Then plug it in to Vf=Vi+AT, solve for T. for the third you do the same thing.

Science
1. Find the lattice parameter of pure iron at room temperature. 2. What is the ratio of the lattice parameter of the iron to the wavelength of the radiation used. 3. What is the value of two theta for the second peak? 4. By what factor is the lattice parameter of the Fe bigger...

health
I believe it's C.. I am probably wrong.. But I have bad anxiety and they've used both on me.

geometry
Is it possible for two points on the surface of a prism to be neither collinear nor coplanar?

Geometry
George, John, Thomas, John, George

HEALTH
I think it's either B, or C,

English
BACDABCDAAC

health
It's A.

health
It's B. Quit cheating on your Ashwood University James Madison HS health quiz.

HEALTH
I'm pretty sure it's D. DBT is Nation Debt something and PBT has to do with toxic chemical control and CBT is computer based teaching

health
I believe it's C.

health
I had the same question-It's A.Talk to ones friends or family.

algebra
factor! or use quadratic formula. :) the answers are....... 4 and -1/5 :)

never mind

english
Thanks, and I had meant to put in narrator.

english
I would like to know if this would be a good thesis to prove for the novel: The Great Gatsby. Thesis: Nick Carraway as the author has both its advantages, and its disadvantages; Nick begins the novel as an objective character full of honest thoughts, yet as the novel unfolds, ...

Physics
A basketball player throws a ball at an angle of 30º above the horizontal. At what point does the magnitude of the acceleration reach a minimum?

tow similar polygons have areas of 100 square inche s and 81 square inces. if a side of the first is 6 incehs find the corresponding side of the second polygon

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