Friday
December 9, 2016

# Posts by kaitlyn

Total # Posts: 277

algebra 1
Tell whether each number in the list is a real number, a rational number, an irrational number, an integer, or a whole number. square root 3, 5.5, negative square root of 16,and 0
September 26, 2013

PHYSICS
A woman goes out running. She first travels 5.2km north. She then turns and travels 3.6km west. Finally, she turns again and travels 2.6km south. We are assuming a flat rectangular world. If a bird were to start out from the origin (where the woman starts) and fly directly (in...
September 17, 2013

Algebra
The stopping distance D in feet for a car traveling at x miles per hour is given by d(x)= (1/12)x^2+(11/9)x. Determine the driving speeds that correspond to stopping distances between 300 and 500 feet, inclusive. Round speeds to the nearest mile per hour.
June 9, 2013

English
May 22, 2013

World Geography
I know what she met, but we don't have a book, it was the voice recorder and it doesn't even say the answers to these.
May 10, 2013

World Geography
Well everything is virtual and we use technology for everything and i am a visual learner not jus someone that listens to something snd learns... It's a quick check.
May 10, 2013

World Geography
But we don't have a book... I'm homeschooled so we don't have books.
May 10, 2013

World Geography
Tbh i need help!
May 10, 2013

World Geography
1.Which of the following demographic characteristics distinguishes Europe's population from that of Asia? A.) More Europeans inhabit rural areas. B.) The European population is much younger. C.) Europeans are more concentration in urban areas. D.) Europe has a larger ...
May 10, 2013

World Geography
Thank You, Ms.Sue!
May 9, 2013

World Geography
1.B. 2.B. 3.A. 4.C. Are these correct?
May 9, 2013

World Geography
Ms.Sue, is number 5. B ?
May 9, 2013

World Geography
1. During the late 18th and mid-19th centuries, Europeans and North Americans were attracted to nearby coastal waters due to potential economic gains from? A.) Catching trout and cod fish. B.) Catching seals and whales. C.) Shipbuilding. D.) Finding riches and unexplored ...
May 9, 2013

math
In a class of 50 students, 35 are Democrats, 17 are business majors, and 6 of the business majors are Democrats. If one student is randomly selected from the class, find the probability of choosing a Democrat or a business major.
April 28, 2013

chemistry
If 13.5 ml of concentrated (17.0 M) of sulfuric acid was spilled on the chemistry counter, calculate the mass of sodium bicarbonate needed to neutralize the acid
April 28, 2013

AP World History
I have to analyze how sub-Saharan Africa & south & south-east Asia's relationship to global trade patterns changed from 1850 to present. please help !
April 21, 2013

General(dont know actual subject)
Thts not wat i expected from you. I am sure i chose the right one otherwise i wouldnt tell u. Because that would literally be wasting my time as well as yours. So from that u should know i chose the rite one. I don't know which is why i was asking you. What are u supposed ...
April 2, 2013

General(dont know actual subject)
My project is research based... I chose plastic surgery.... Question is: why have you chosen this task? ( in the box below write a paragraph explaining why you have selected your particualar task idea.) I really cant think of why i chose plastic surgery among all the other ...
April 2, 2013

Math trigonometry
Find the measures of the acute angles of a right triangle whose legs are 9 cm and 16 cm long.
March 16, 2013

Equal 15=15 they are dance same number
January 15, 2013

Educational Assitant
Say that is his opinion everyone has an opinion
January 15, 2013

If he starts with a white bead every fourth time boommtheres a white head 1_234_5_678_9_ 1, 5, 9
January 14, 2013

Instead of using fractions use quarter I have one dollar and three quarters and 2 dollars and three quarters try this
December 16, 2012

December 12, 2012

December 11, 2012

grammar
Who is correct
December 6, 2012

what is a word problem for 4.23x10
December 5, 2012

Elementary
edie needs to start from the ones place then subtract the rest of the problem. simple as pie.
December 5, 2012

Fly is correct jump is wrong
November 26, 2012

chemistry
Determine whether a solid forms when solutions containing the following salts are mixed. If so, write the ionic equation and the net ionic equation. KCl and Na2S
November 21, 2012

Chemistry
If argon has a volume of 5.0 dm3 and the pressure is .92 atm and the final temperature is 30 degrees celcius and the final volume is 5.7 L and the final pressure is 800 mm Hg, what was the initial temperature of the argon?
November 19, 2012

Algebra
A motorcycle breaks down and the rider has to walk the rest of the way to work. The motorcycle was being driven at 45mi/hr and the rider walks at a speed of 6mi/hr. Teh distance from home to work is 25 miles and the total time for the trip was 2 hours. How far did the ...
November 11, 2012

Angular Speed-Physics
Stars originate as large bodies of slowly rotating gas. Because of gravity, these clumps of gas slowly decrease in size. What happens to the angular speed of a star as it shrinks? Explain.
November 1, 2012

Physics Inertia!
Rank from fastest to slowest. a)a solid ball rolling down a ramp without slipping b)a cylinder rolling down the same ramp without slipping. c)a block sliding down a firctionless ramp with the same height and slope. Select all that apply. The ball is fastest The cylinder is ...
October 30, 2012

Physics
An asteroid with mass m = 1.85*10^9 kg comes from deep space, effectively from infinity, and falls toward Earth. How much work would have to be done on the asteroid by friction to slow it to 550 m/s by the time it reached a distance of 1.50*10^8 m from Earth?
October 16, 2012

Math (kindergarten)
18 + 21 = 39 Answer: 39
October 10, 2012

physics
Henry almost had it right.... s=(2+4+4.5)km/ 20min --> convert to m/s: s=10.5km/20min x 1000m/1km x 1min/60s --> 8.75 m/s
October 4, 2012

algebra
A board is leaning against a building so that the top of the board reaches a height of 18 feet. The bottom fo the board is on the groung 4 feet away from the wall. What is the slope of the board as a positive number?
September 30, 2012

algebra
simplify 36/3*4-(-2) ?
September 19, 2012

physics
What is the final speed?
September 14, 2012

physics
Light-rail passenger trains that provide transportation within and between cities are capable of modest accelerations. The magnitude of the maximum acceleration is typically 1.3 {\rm m}/{\rm s}^{2}, but the driver will usually maintain a constant acceleration that is less than...
September 14, 2012

chemistry
Why is it important to list what you already know about a problem ?
September 3, 2012

Physics (one more)
A lead ball has a volume of 94.3 cm3 at 19.3°C. What is the change in volume when its temperature changes to 34.3°C? Someone on here has already answered this but it was wrong!
June 22, 2012

A cube of wood and a cube of concrete, each 0.17 m on a side, are placed side by side. One of the long faces of the rectangular prism formed by the two cubes is held at 17°C, and the opposite long face is held at 32°C. What is the total rate of heat transfer through ...
June 22, 2012

physics....
nevermind I get it
June 12, 2012

physics....
I don't understand why you're multiplying by two for the second question.
June 12, 2012

world history/World Geography
B. Is the correct answer for this question. Source: Took a World Geography with the same question and got a hundred, and the correct answer is B. (Courtnei, A is wrong answer.)
May 1, 2012

Humanities
April 27, 2012

Astronomy
March 9, 2012

Astronomy
The maximum wavelength of emission from Neptune's cloud tops is 6.0 x 10-5m. Using this value, determine the temperature of Neptune's outer atmosphere.
March 9, 2012

Physics
A river is flowing 4.0 m/s to the east. A boater on the south shore plans to reach a dock on the north shore 30.0 Degrees downriver by heading directly across the river. What should be the boat's speed relative to the water?
February 6, 2012

Physics
A river is flowing 4.0 m/s to the east. A boater on the south shore plans to reach a dock on the north shore 30.0 Degrees downriver by heading directly across the river. What should be the boat's speed relative to the water?
February 6, 2012

algebra
if a 12 apple weigh 5lb how much 36 weigh
February 6, 2012

Physics
1. set it up: s=d/t --> s=(2+4+4.5)km/ 20min 2. Convert to meters/ seconds s= 10.5km/20 min x 1000m/km x 1min/60s= 8.75 m/s
January 9, 2012

Astronomy
December 12, 2011

Astronomy
Explain the idea of parallaz. The closet star to the Sun, Proxima Centauri, is 4.2 light years away from us. What is its parallax angle?
December 12, 2011

Science
Okay, say im doing a science fair project, and I am not really good at coming up with questions, what would be a good question to ask about Newtons First Law of Motion
November 28, 2011

Astronomy
If we assume the Sun is made totally out of hydrogen, how many hydrogen atoms are contained with the Sun? If the Sun converts half of these hydrogen atoms into helium over its lifetime of about ten billion years, how many hydrogen atoms are converted per second? Mass of Sun = ...
November 22, 2011

Astronomy
Calculate the wavelength of peak emission for a typical sunspot and compare it to that of the photosphere. How many times brighter is the photosphere than a typical sunspot? (Hint: Assume the photosphere and a sunspot are good blackbodies for these calculations.)
November 21, 2011

physics
(-6.51,76.8)
October 6, 2011

Physics
Posted earlier but I wrote it incorrectly. How fast would a rocket have to be going in order to completely leave the solar system? (Assume that the Sun is the only mass in the solar system and that the rocket is beginning its journey from Earth's orbit?)
September 30, 2011

Physics
How fast would a rocket have to be going in order to completely leave the solar system? (For the second part of this problem, assume that the Sun is the only mass in the solar system and that the rocket is beginning its journey from Earth's orbit?)
September 30, 2011

Physics
How fast does a rocket need to be going to break free of Earth's gravity? How fast would it have to be going in order to completely leave the solar system? (For the second part of this problem, assume that the Sun is the only mass in the solar system and that the rocket is...
September 30, 2011

Physics
How fast does a rocket need to be going to break free of Earth's gravity? How fast would it have to be going in order to completely leave the solar system? (For the second part of this problem, assume that the Sun is the only mass in the solar system and that the rocket is...
September 29, 2011

science
what effect does sugar water have on a plant?
September 20, 2011

Algebra
what is incorrect in this argument: the equation 5x + 3 = 3 + 5x isalways true because of the symmetric property of equality
September 14, 2011

French
Please help me unscramble the following words in french: penctoier uernigrsul aceir cuehaebrisnfa arlabtce botromen eercn nealum lstaa
September 11, 2011

Physics
A particle starts from xi = 10 m at t0 = 0 and moves with the velocity graph shown in the graph below. Sorry for no graph it's at 12 m/s when time is zero. Moves down consistently so that it is 8 at 1 4 at 2 0 at 3 and negative 2 at 4. (a) What is the object's position...
September 5, 2011

calculus
In a problem where you have to solve the limit f(x) as x approaches x sub zero, what does x sub zero mean?
August 8, 2011

math
Well 9 times 6 gets 54 and there is 2 left over so the answer is 6 and two-ninths
May 23, 2011

Acids and Bases
NaOH was added to 1.0 L of HI(aq) 0.40 M. Calculate H3O in the solution after the addition of .14 mol of NaOH. Calculate H3O in the solution after the addition of 0.91 mol of NaOH.
March 23, 2011

math
1/6 students like math, 2/3 like reading and 12 like science. How many students were asked.
March 22, 2011

Marine Ecology
what tissue do humans have that cnidarians do not?
March 14, 2011

chemistry
A steel tank containing helium is cooled to 15◦C. If you could look into the tank and see the gas molecules, what would you observe?
March 7, 2011

psychology
8. Cognitive psychology can best be described as:
February 6, 2011

social studies
In 1963 Viginia's public schools opened their doors to:...
February 2, 2011

science
What is Pangea?
January 25, 2011

geography
Taken as a whole, what would you say is the single most pressing problem found in Latin America or South America? What possible solutions can you develop?
December 15, 2010

Describe the geography of Southern South America and how this geography influences economic activity?
December 15, 2010

physics
so would it be... P=((73+7)*9.8)/2*pi*r then divide it by 2? or would it be... 4P=((73+7)*9.8)/2*pi*r then divide it by 2?
December 13, 2010

physics
A 73 kg man in a 7.0 kg chair tilts back so that all the weight is balanced on two legs of the chair. Assume that each leg makes contact with the floor over a circular area with a radius of 1.0 cm, and find the pressure exerted on the floor by each leg.
December 13, 2010

physics
i keep coming up with the wrong answer for T1. i am getting 358.57 and its wrong.
December 12, 2010

physics
A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 210 N and is 2.80 m long. What is the tension in each rope when the 710 N worker stands 1.80 m from one end? smaller and larger.
December 12, 2010

physics
nevermind. i just figured it out.
December 12, 2010

physics
A 581 kg satellite is in a circular orbit about the Earth at a height above the Earth equal to the Earth's mean radius. the orbital speed is 5590.98 m/s. Find the period of its revolution.
December 12, 2010

physics
A satellite moves in a circular orbit around the Earth at a speed of 5661 m/s. (b) Determine the period of the satellite's orbit. the satilites altitude above the surface of earth is 6076312.71m. im using the equation P=2*pi*r/v and am coming up with 1.87 and its not right...
December 8, 2010

physics...
A satellite moves in a circular orbit around the Earth at a speed of 5661 m/s. (a) Determine the satellite's altitude above the surface of the Earth. i'm using the equation Gm/(r+h)=9.8 where h=altitude and i keep coming up with the wrong answer.
December 8, 2010

physics
A 0.480 kg pendulum bob passes through the lowest part of its path at a speed of 3.10 m/s. (b) When the pendulum reaches its highest point, what angle does the cable make with the vertical? The cable of the pendulum is 80 cm or .8m.
December 7, 2010

physics
A 0.480 kg pendulum bob passes through the lowest part of its path at a speed of 3.10 m/s. (b) When the pendulum reaches its highest point, what angle does the cable make with the vertical? The cable of the pendulum is 80 cm or .8m.
December 7, 2010

physics
A 0.50 kg ball that is tied to the end of a 1.4 m light cord is revolved in a horizontal plane with the cord making a 30° angle with the vertical. (b) If the ball is revolved so that its speed is 4.0 m/s, what angle does the cord make with the vertical?
December 6, 2010

physics
A 0.50 kg ball that is tied to the end of a 1.4 m light cord is revolved in a horizontal plane with the cord making a 30° angle with the vertical. (b) If the ball is revolved so that its speed is 4.0 m/s, what angle does the cord make with the vertical?
December 6, 2010

physics
(b) If the ball is revolved so that its speed is 4.0 m/s, what angle does the cord make with the vertical?
December 6, 2010

physics
A 0.50 kg ball that is tied to the end of a 1.4 m light cord is revolved in a horizontal plane with the cord making a 30° angle with the vertical. determine the balls speed.
December 6, 2010

statistics
with a mean of 62 and standard deviation of 12, how would you find a proportion greater than 80 and draw it on a curve?
December 2, 2010

physics
Consider a level flight turn of a propeller-driven airplane in which the airplane makes a complete circular turn in 1.6 min. If the plane's speed is 200 m/s, what is the radius of the circle?
December 2, 2010

physics
It has been suggested that rotating cylinders about 10 mi long and 4.9 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall acceleration?
December 1, 2010

physics
An 8.00 g bullet is fired into a 250 g block that is initially at rest at the edge of a table of 1.00 m height. The bullet remains in the block, and after the impact the block lands d = 1.8 m from the bottom of the table. Determine the initial speed of the bullet.
November 23, 2010

World Geography
Identify the state capital that will be visited by a team from a state capital?
November 23, 2010