Saturday

April 18, 2015

April 18, 2015

Total # Posts: 76

**physics**

A student measures the index of refraction of a gooey, transparent liquid to be 1.41. How fast does light travel in this liquid?
*April 1, 2015*

**math**

john told raquel that if he spent up to $30 from his saving account, his savings account would have 3/4 as much in it as it has now. From John's statement, raquel can deduce that the least amount of money that john could have in his savings account now is what?
*February 25, 2015*

**AP CHEM**

A solution formed by mixing 13.0 mL of 0.013 M Ba(OH)2 with 31.0 mL of 7.0 ✕ 10-3 M NaOH. Calculate [OH-]
*February 17, 2015*

**Trig**

Bob the ranger is atop a fire tower that i son the side of a mountain.The fire tower is 10 meters high and the angle of depression from the top of the tower to the base of the mountain is 48 degrees. The tower creates a 115 degree angle with the mountain. How far up he ...
*February 5, 2015*

**geometry**

You in ms Johnson class?
*December 11, 2014*

**Math**

Ms. Meyers said the theatre usually charge $9 per student. On student night, the tickets are $6 per student and she can bring 47 more students for the same cost. How many students can Ms. Meyer bring to the theatre?
*November 17, 2014*

**Science**

I'm not sure I understand really.
*October 23, 2014*

**Science**

A cell starts with 12 chromosomes, then goes through mitosis. How many cells are produced at the end of mitosis? How many chromosomes are in each of the cells at the end of mitoses? A cell starts with 12 chromosomes, then goes through meiosis. How many cells are produced at ...
*October 23, 2014*

**Science**

Thank you Ms. Sue ! (:
*September 26, 2014*

**Science**

I have two questions for 7th grade Science. I've been sitting here for a while, and I am behind in school work. Please Help. _____ is the practical use of scientific knowledge to solve everyday problems and improve lives ____ are used to make complicated concepts and ...
*September 26, 2014*

**Chemistry**

PCl5 --> PCl3 + Cl2 A 0.318 mol sample of PCl5(g) is injected into an empty 4.15 L reaction vessel held at 250 °C. Calculate the concentrations of PCl5(g) and PCl3(g) at equilibrium.
*April 22, 2014*

**math**

A typical one-hour television program devotes 10% of each hour to commercials. At this rate, how many minutes of commercials would a 3-hour program have?
*December 14, 2013*

**algebra 2**

a bag of fertilizer claims that it will cover 5000 square feet of grass if you front yard is 150 feet wide and 65 feet deep and you back yard is 150 feet wide and 225 feet deep how many bags of fertilizer will you need to fertilize your entire back yard?
*September 6, 2013*

**algebra 2**

a bag of fertilizer claims that it will cover 5000 square feet of grass if you front yard is 1450- feet wide and 65 feet deep and you back yard is 150 feet wide and 225 feet deep how many bags of fertilizer will you nee to fertilize your entire back yard?
*September 6, 2013*

**4th grade english**

i need help diagramming subjects,predicates,adjectives adn adverbs
*May 8, 2013*

**4th grade math**

4 1/4 minus 1 3/4
*April 22, 2013*

**4th grade math**

thank you very much!
*April 16, 2013*

**4th grade math**

150?
*April 16, 2013*

**4th grade math**

so it would be 150?
*April 16, 2013*

**4th grade math**

30
*April 16, 2013*

**4th grade math**

360
*April 16, 2013*

**4th grade math**

brian cut an extra large round pizza into 12 pieces. 7 of the pieces were eaten. what angle measure of pizza is left?
*April 16, 2013*

**Physics**

Given an acceleration of 0.6 m/s/s, on the surface of an asteroid with a radius of 1200 meters, find the mass of the asteroid.
*March 8, 2013*

**Health**

Thank you
*March 1, 2013*

**Health**

What should I do? I constantly have suicidal thoughts...
*March 1, 2013*

**physics**

A charge of 4.00 mC is placed at each corner of a square 1.05 m on a side. Determine the magnitude and direction of the force on each charge.
*July 16, 2012*

**math**

You can make sure that the ratios of the corresponding side lengths stay the same. For example the dimensions are 2 and 4. You can then make apicture that is doubled 4 and 8. If you make this for example a square this will fitin the larger one 4 times without distorting it (...
*March 1, 2012*

**science**

if a globe has a diameter of 0.5 meters write the globes scale as a ratio. What distance on earth would 1 centimeter on a globe represent
*January 31, 2012*

**social studies**

i am doing a poster project and i am putting the declaration of independence and i need help finding out what to put for it's caption
*January 8, 2012*

**social studies**

i am doing a poster project and i am putting the virgina act for establishing religious freedom and i need help finding out what to put for it's caption
*January 8, 2012*

**Physics**

Sue and Sean are having a tug of war by pulling on opposite ends of a 1.43 kg rope. Sue pulls with a 46.47 N force. What is Sean's force if the rope accelerates toward Sue at 4.92 m/s2
*January 5, 2012*

**Physics**

An object has a mass of 115 kg on the Earth. What is the weight of the object on the surface of a planet where the acceleration due to gravity is 5.6 m/s2?
*January 5, 2012*

**Physics**

A sports car of mass 1311.8 kg can accelerate from rest to 21.22 m/s in 3.5 s. What is the average forward force on the car?
*January 5, 2012*

**Physics**

A 8.8 kg box is placed on top of a 15.65 kg box (the 15.65 kg box is sitting on a table). Determine the normal force that the table exerts on the 15.65 kg box.
*January 5, 2012*

**Physics**

A 8.8 kg box is placed on top of a 15.65 kg box (the 15.65 kg box is sitting on a table). Determine the normal force that the table exerts on the 15.65 kg box.
*January 5, 2012*

**Physics**

An antique vase sits on a frictionless surface. A 39.3 N force is applied to the vase, and it accelerates at 8.1 m/s2. What is the mass of the vase?
*January 5, 2012*

**Physics**

A 19.00 kg box rest on a table. What is the weight of the box?
*January 5, 2012*

**Physics**

A 19.00 kg box rest on a table. What is the weight of the box?
*January 5, 2012*

**Physics**

A 19.00 kg box rest on a table. What is the weight of the box?
*January 5, 2012*

**Physics**

What is the weight of a 444 g box sitting on the floor?
*January 5, 2012*

**Physics**

You push with a force of 22.5 N on a loaded shopping cart that has a total mass of 80 kg. What is the acceleration of the cart?
*January 5, 2012*

**math**

Woah ^^ I'm confused. Please explaain
*January 3, 2012*

**math**

i need to learn my multiplication tables at least up to 9 and i have to do it fast because i'm in 8th grade and i don't know what they are. how do i learn them fast??
*December 29, 2011*

**math**

i need to learn my multiplication tables at least up to 9 and i have to do it fast because i'm in 8th grade and i don't know what they are. how do i learn them fast??
*December 29, 2011*

**social studies**

i have to do a poster project of Thomas Jefferson and (i'm in the 8th grade) you get graded on how the colors correspond and how clear the pictures are and you have to have a caption under the picture saying what it is and a little bit about it and he will give you extra ...
*December 28, 2011*

**Science**

How much more sugar could be added to 100 mL of water if it's temperature was raised from 50 degrees C to 70 degrees C?
*November 30, 2011*

**Physics!**

What is the acceleration acting on a grandfather clock's pendulum, of length 0.9m, with a maximum angular displacement of 0.1rad? What is the total distance traveled by that pendulum in one complete oscillation?
*November 27, 2011*

**Physics**

What is the acceleration acting on a grandfather clock's pendulum, of length 0.9m, with a maximum angular displacement of 0.1rad?
*November 27, 2011*

**Physics**

A 95,000kg spaceship, moving at 0.34 m/s, wants to dock at a 75000kg satellite that is moving towards it. If the final speed to the joined spacecraft is -0.66 m/s, find the initial speed of the satellite.
*November 27, 2011*

**Physics**

If you push the outer edge of a 1.05-m-wide door with a 23.0-N tangential force, what torque results? What is the torque if you apply the same magnitude of force, in the same place, but at a 45 degree angle?
*November 14, 2011*

**Algebra**

The area of a rectangular athletic field is represented by the expression square meters. Write an algebraic expression to represent one possible set of dimensions (in the sense Òlength times widthÓ) of the athletic field. Include correct units with your solution...
*November 4, 2010*

**Algebra**

The area of a rectangular athletic field is represented by the expression 48x^4 + 32x^3 - 72x square meters. Write an algebraic expression to represent one possible set of dimensions (in the sense Òlength times widthÓ) of the athletic field. Include correct units...
*November 4, 2010*

**algebra**

Jai, Oh my gosh, thank you so much. I even understand exactly how you go the answer. I've been doing the tutoring at my school for almost 2 days with the same tutor and they cannot explain it on an easy to understand level. I really really appreciate your help!!!!!
*October 28, 2010*

**algebra**

36x^2 - 49y^2 divided by 6x + 7y meaning 36x^2 - 49y^2 is on top and 6x + 7y is on bottom. Please help, my teacher nor course book covers when there are different variables
*October 28, 2010*

**Calculus**

Find the derivative of y=x(2^(4x)).
*October 19, 2010*

**calculus**

Find the derivative of y=(s^3+12)^(1/6)
*October 15, 2010*

**calculus**

hmm... that's what i did but the internet math program says it's wrong. thanks though!
*October 14, 2010*

**calculus**

y=3⋅2^x Find the equation of the line tangent to the graph of y at x=1.5.
*October 14, 2010*

**Math**

Please help!!!! Solve each system graphically. Be sure to check your solution. If a system has an infinite number of solutions, use set-builder notation to write the solution set. If a system has no solution, state this. 6x - 2y = 2, 9x - 3y = 1 My answer: Equation 1 X-...
*October 11, 2010*

**Intermediate Algebra**

Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. -3x + y = 4 x + 3y = 22 Here's what I came up with (where did I go wrong) -3x + y = 4 y = 4 - 3x -3x + (4-3x) = 4 -3x + 1x = 4 -2x = 4 x= -2 -...
*October 11, 2010*

**Intermediate Algebra**

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -7x Ð 5y = 1.5 -5x Ð 4y = 4.5
*October 11, 2010*

**Chemistry**

Consider the following errors that could be made when running TLC. Indicate what should be done to correct the error. a) a two-component mixture containing 1-octene and 1,4-dimethylbenzene gave only one spot with an Rf value of .95. The solvent uses was acetone. b) a two-...
*October 3, 2010*

**Math**

if three times the complement of an angle is subtracted from its supplement the result ends up being 59 degrees. Find the measure of the angle.
*September 21, 2010*

**chemistry**

for the reaction ZnO + 2HCl yields ZnCL2 + H2O, what is the maximum amount of ZnCl2 which could be formed from 17.24 grams of ZnO and 6.87 grams of HCl? answer in units of grams.
*September 8, 2010*

**chemistry**

14 carat gold has a purity of 58.3%. how many moles of gold are in 155 grams of 14 carat gold? answer in units of moles.
*September 8, 2010*

**Grammar**

Are these correctly punctuated? He admitted that he drank 10 beers a day. There is only one alternative to growing old; Dying young. Surgery will take place in 6 weeks, however, if his symptoms worsen, we will perform it sooner. Her tumor had metastasized rapidly; therefore, ...
*October 21, 2009*

**Math**

-3(3x+15)-(10+x)=35
*September 24, 2009*

**Math**

-3(3x+15)-(10+x)=35
*September 24, 2009*

**Math**

18x-(8x-7)=67
*September 24, 2009*

**Blue Whales**

How will the blue whales extincion affect the environment, the oceans ecosystem, or even the food chain?
*August 4, 2009*

**Whales**

Does anyone know where i can find the most recent or updated information on blue whales...like how long they've been endangered?
*July 22, 2009*

**7th grade science**

How does the gravity of planets and moons affect stars? Thanks!
*April 28, 2009*

**Math**

How many bricks that are 16 by 16 will fit in a 10 foot by 10 foot square?
*April 3, 2009*

**PUZZLE**

MY NUMBER IS A FACTOR OF 20. IT,S ALSO A FACTOR OF 30
*September 2, 2008*

**Science**

What does an Electromagnetic wave transfer into?? It can transfer to heat, electical power, mechanical power, or light.
*November 26, 2006*

**geography**

what are the goods & services of each state? The commerce? please see: http://www.commerce.gov/ AND http://cl.idaho.gov/DNN/Default.aspx?alias=cl.idaho.gov/dnn/idcl Goods of each state usually refer to the agricultural or manufactured products (like wheat, fruit, cars, ...
*November 21, 2006*

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