Thursday

July 24, 2014

July 24, 2014

Total # Posts: 66

**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.

**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?

**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?

**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?

**4th grade english**

i need help diagramming subjects,predicates,adjectives adn adverbs

**4th grade math**

4 1/4 minus 1 3/4

**4th grade math**

thank you very much!

**4th grade math**

150?

**4th grade math**

so it would be 150?

**4th grade math**

360

**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?

**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.

**Health**

Thank you

**Health**

What should I do? I constantly have suicidal thoughts...

**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.

**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 (di...

**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

**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

**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

**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

**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?

**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?

**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.

**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.

**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?

**Physics**

A 19.00 kg box rest on a table. What is the weight of the box?

**Physics**

A 19.00 kg box rest on a table. What is the weight of the box?

**Physics**

A 19.00 kg box rest on a table. What is the weight of the box?

**Physics**

What is the weight of a 444 g box sitting on the floor?

**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?

**math**

Woah ^^ I'm confused. Please explaain

**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??

**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??

**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 p...

**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?

**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?

**Physics**

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

**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.

**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?

**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...

**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...

**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!!!!!

**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

**Calculus**

Find the derivative of y=x(2^(4x)).

**calculus**

Find the derivative of y=(s^3+12)^(1/6)

**calculus**

hmm... that's what i did but the internet math program says it's wrong. thanks though!

**calculus**

y=3⋅2^x Find the equation of the line tangent to the graph of y at x=1.5.

**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-interce...

**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 -...

**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

**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-compo...

**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.

**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.

**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.

**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, s...

**Math**

-3(3x+15)-(10+x)=35

**Math**

-3(3x+15)-(10+x)=35

**Math**

18x-(8x-7)=67

**Blue Whales**

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

**Whales**

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

**7th grade science**

How does the gravity of planets and moons affect stars? Thanks!

**Math**

How many bricks that are 16 by 16 will fit in a 10 foot by 10 foot square?

**PUZZLE**

MY NUMBER IS A FACTOR OF 20. IT,S ALSO A FACTOR OF 30

**Science**

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

**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, electro...

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