Friday
November 28, 2014

Posts by Isabelle


Total # Posts: 61

physics, how to find the height
a ball is launched at an angle to the ground with an initial speed of 65m/s. at it's maximum height it has a speed of 26m/s. determine it's maximum height.
November 27, 2014

physics, how to find the height
On the surface of a planet an object is thrown vertically upward with an initial speed of 60 m/s. use a conservation of energy approach to determine the object's speed when the object is at a quarter of it's maximum height. (assume the planet has no atmosphere) please ...
November 26, 2014

physics please help
On the surface of a planet an object is thrown vertically upward with an initial speed of 60 m/s. use a conservation of energy approach to determine the object's speed when the object is at a quarter of it's maximum height. (assume the planet has no atmosphere) PLEASE ...
November 23, 2014

physics please help
a 65 kg bag is dragged along a 12m ramp in order to get from the ground to the floor of the loading dock 2m above the ground. determine the efficiency of of the ramp. The frictional force acting on the bag is 50N due to the ramp. I don't understand how to the find the ...
November 23, 2014

physics
a 65 kg bag is dragged along a 12m ramp in order to get from the ground to the floor of the loading dock 2m above the ground. determine the efficiency of of the ramp. The frictional force acting on the bag is 50N due to the ramp. I don't understand how to the find the ...
November 23, 2014

physics
oh and frictional force acting on the bag is 50N
November 23, 2014

physics
a 65 kg bag is dragged along a 12m ramp in order to get from the ground to the floor of the loading dock 2m above the ground. determine the efficiency of of the ramp. I don't understand how to the find the energy output and input.
November 23, 2014

physics
a 7 kg ball is thrown into the air from ground level with an initial velocity of 24m/s. Determine the ball's maximum height. Use conservation of energy. help!!!
November 16, 2014

please help, math question
@reiny what did you do to get from 2x^2 + 25x - 75 = 0 to (2x - 5)(x+15) ?
November 5, 2014

please help, math question
A matte of uniform width is to be placed around a painting so that the area of the matted surface is equal to the area of the painting. If the dimensions of the painting are 15 cm and 10 cm, find the width of the matte. The answer is supposed to be 2.5 cm but I keep getting 12.5.
November 5, 2014

Math, please help
A matte of uniform width is to be placed around a painting so that the area of the matted surface is equal to the area of the painting. If the dimensions of the painting are 15 cm and 10 cm, find the width of the matte. The answer is supposed to be 2.5 cm but I keep getting 12...
November 5, 2014

physics
^^ bobpursley What formula did you use? Could you repost it using v1 and v2 as variables?
November 2, 2014

physics
Arann launches a rock into the air such that it rises 20.0 m in the first third (time wise) of its ascent to maximum height. Determine the rock's maximum height and launch speed. Determine the time(s) at which the ball is at a height of 10m. PLEASE HELP
November 2, 2014

Physics
A space craft made up of two parts with masses m1 = 2.3 kg and m2 = 3.4 kg is held together by explosive bolts against a spring. The spring is compressed by 73.0 cm and has negligible mass. After the bolts are exploded m1 is found to have a speed of 3.6 m/s away from the ...
October 27, 2014

Math
Given that a^33 = -2p; a^74 = 26p, what is a^1?
September 20, 2014

Math
1. If one wishes to accumulate a Php 30,000-fund in 5 years, how much should he deposit now at 18% compounded quarterly? 2. If a bank offers a rate of 4.5% compounded semiannually, how much should you deposit to accumulate Php 50,000 in 15 years 3. Suppose that a particular ...
September 9, 2014

Geometry
2.Given two segments with lengths x and y (x does not equal y), which three special parallelograms meet the three sets of given conditions? a. One diagonal has length x, the other has length y. b. The diagonals intersect at right angles. c. Both diagonals have length y and do ...
June 24, 2014

Geometry
What type of quadrilateral is formed by connecting the points (0,0), (3x,b), (18x,b), and (15x,0)? How would I solve this?
June 24, 2014

math
can you me the answer from fraction must be in simplest form!!!!
May 19, 2014

Physics
A 100 g mass is attached and wrapped around an apparatus at a constant radius of 10 cm. The hanging mass is dropped and obtains a speed of 0.2 m/s after 1 m. Using energy considerations, what is the moment of inertia of the apparatus?
April 9, 2014

English II - Concluding an essay!!!
Thank you this really helped!!
November 22, 2013

English II - Concluding an essay!!!
Hi, I really need help concluding my essay on Othello. My thesis is: The worldly Emilia and Bianca create a strong contrast against the virtuous and innocent Desdemona, reinforcing the tragedy of her death and Othello's crime. What I have for my conclusion is: In ...
November 22, 2013

science
Create a diamante poem about acids and bases.
November 5, 2013

science
THE PILOT OF AN AIRPLAINE TRAVELING WITH A HORIZONTAL SPEED OF 70 M/S TO DROP RESCUE SUPPLIES TO PHYSICS STUDENTS STRANDED ON AN ISLAND 240M BELOW. sOLVE FOR HORIZONTAL DISPLACEMENT.
August 22, 2013

Chemistry
Would water-insoluble alcohols, like 1-octanol, be soluble in aqueuous NaOH?
May 15, 2012

Math
I'm in 5th grade and here's my question: I have to write which fraction represents the ratio of corresponding sides? There are 2 triangles. One triangle has the measurements 3in., 9in. and 6in. The other triangle is 18in., 54in. and 36in. Thank you.
March 5, 2012

chemistry
plug what into where? my teacher hasn't explained anything relating to this problem so I have no idea what to do.
February 18, 2012

chemistry
I don't know how to solve it
February 18, 2012

chemistry
The Clapeyron-Clausisus Equation is ln(P2/P1) = dHvap/R [(1/T1)-(1/T2)]. Assuming that dHvap doesn't change with the temperature, this equation relates the change in vapor pressure and temperature to a substances enthalpy of vaporization (R is the molar gas constant). Use ...
February 18, 2012

chemistry
i don't know how to clarify the question. Thats how it is on my paper.
February 18, 2012

chemistry
calculate the water vapor pressure of benzene at 0.80, 0.60, 0,40, and 0.20 mole fraction and toluene at 0.20, 0.40, 0.60, and 0.80 mole fraction.
February 18, 2012

Spanish
I have to compare two activites-like one is more interesting, or more fun, etc; Did I do it correctly-thank you for checking this- Tocar la piano es más divertido que tocar la guitarra. Montar a caballo es más interesante que caminar el gato. Cantar es menos fac&...
October 9, 2011

physics
Which statements are true for the resistivity of a metal conductor: It depends on the temperature of the material. It becomes smaller as the cross-sectional area of the material becomes smaller. It is positive for copper but negative for carbon. It has units of ohms/meter. It ...
September 28, 2011

Math
If the square root of a number is an integer, the number is called a perfect square. one example of a perfect square is a.) 50 or b.) 81
March 14, 2011

Astronomy
We can calculate the kinetic energy of any moving object with a very simple formula: kinetic energy = 1/2 mv^2 ,where m is the object's mass and v is its velocity or speed. Table Energy Comparisons shows that metabolizing a candy bar releases about 10^6 joules. A- How fast...
October 19, 2010

7th grade
What is a good definition of mercantilism? I don't understand when all the definitions talk about economic systems of national wealth. Thank you!
October 16, 2010

7th grade
You can get this if you concentrate on the last part that reads: *6. What's the ONLY number times 6 that will equal six? One. So (6+6)/(6+6) * 6 = 6 = 12 / 12 * 6 = 6 = 1 * 6 = 6
October 13, 2010

French
toi / la / aimer / la / moi / fête / mieux / et / nous / faire i am supposed to unscramble and conjugate these and make a sentence i cant figure one out that makes sense
September 14, 2010

9th grade
A person standing on Mars would weigh 38% of his earth weight. What is the Mars weight of a person with an earth weight of 55 kilograms?
August 25, 2010

trig
how come you get different answers if you take different paths in trigonometry? (when you choose to use sin, cos or tan)
April 20, 2010

reading and language
examples of propoganda
April 18, 2010

geometry
what is the surface area of a box, that has the length of 15 in , a width of 8 in . and a height of 3 in.
March 31, 2010

Earth Science
Fault
December 7, 2009

math
733 333 333
October 27, 2009

math
how do u know?
September 13, 2009

math
is 1 a composite number or a prime number?
September 13, 2009

Math
steph???
September 13, 2009

art
thank you
September 10, 2009

art
i dont understand how rhythm of principles of design works, either
September 10, 2009

art
thank you so much gurublue. you have helped me many times. thanks.
September 10, 2009

art
what is the difference between unity and emphasis?
September 10, 2009

science
i think so
September 10, 2009

6th Grade Math
Thanks so much! :)
April 15, 2009

6th Grade Math
I don't really understand the rules for adding and subtracting integers. Can someone explain them to me?
April 15, 2009

English----Writing
I have an English project I am currently working on that focuses on the novel "Animal Farm" by George Orwell. My team and I are writing a revolutionary newspaper that would have been printed on the farm in order to turn, (or at least attempt to turn) the others ...
March 25, 2009

FRENCH
Both "Un jour, je ferai un voyage en France" and "Je vais faire un voyage en France cet été" (Replace "en été" with "cet été" in you're speaking about the summer to come) ("En" ...
March 25, 2009

4TH GRADE URGENT LATE MATH HOMEWORK!!!!
Thanks!!!!!!!!!!!!!!!!!!!
February 8, 2009

4TH GRADE URGENT LATE MATH HOMEWORK!!!!
What shape has the same number of vertices as faces? Thanks!
February 8, 2009

accounting
What are the amounts?
February 8, 2009

algebra
Thanks but this doesnt really help me answer my question.
October 14, 2007

algebra
Superman the Escape in CAlifornia is the fastest roller coaster in the world. Riders fall 415 feet in 7 seconds. Speeds reach a maximum of 100 miles per hour. If x represents the average rate of fall of the roller coaster, write an expression to represent the situation. (Hint...
October 14, 2007

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