Wednesday

October 7, 2015
Total # Posts: 870

**Integrated Chem/Phys**

If the density of a 225g stuffed plush toy is 1.25g/cm^3 and the water volume in a glass is 25 ml, find the new level of water after the toy is pushed under water. I know that D=m/v so 1.25=225/v so 1.25/225=v so I got .005 which cannot possibly be right. I am obviously doing ...
*May 6, 2010*

**Science**

A car is traveling at 15 m/sec. Ten minutes later it is traveling at 70 m/sec. What is the acceleration?
*May 2, 2010*

**5th grade**

i dont know i want u to tell me
*April 25, 2010*

**math**

A rectangular prism with a base area of 38 sq in & height of 9 in is filled to the top with water. The water is poured into fish tank that is 21 in by 8 in and is 10 in tall. How high is the water in the fish tank?
*April 20, 2010*

**college**

Two copper rings are dropped from a region where no magnetic field exists into a region where a strong magnetic field exists. The rings are identical except for a break in one of them. What can happen to the rings' motion as they fall through the magnetic field?
*April 13, 2010*

**physics**

The polar ice caps contain about 2.76E+19 kg of ice. This mass contributes negligibly to the moment of inertia of Earth because it is located at the poles, close to the axis of rotation. Estimate the change in the length of the day that would be expected if the polar ice caps ...
*April 9, 2010*

**physics**

In the figure below, a constant horizontal force Fapp of magnitude 18 N is applied to a wheel of mass 12 kg and radius 0.50 m. The wheel rolls smoothly on the horizontal surface, and the acceleration of its center of mass has magnitude 0.50 m/s2. What is the friciotnal force ...
*April 7, 2010*

**physics**

If a 31.0 N·m torque on a wheel causes angular acceleration 22.0 rad/s2, what is the wheel's rotational inertia?
*April 7, 2010*

**math**

Show 1/4 of a set of 8 counters. How many counters is that?
*April 7, 2010*

**biology**

How could a substance that stops the sythesis of mRNA cause the liver to stop functioning(the death of liver cells)?
*March 23, 2010*

**Object Orientation **

WHAT IS THE MODULARITY IN OOP? AND WHAT IS HIERARCHY? AND WHATS THE DIFFERENCE BETWEEN BOTH AND INHERITANCE?
*March 15, 2010*

**Object Orientation **

Use your own words to describe or Explain the 4 basic principles of Object Orientation. ( Abstraction, Encapsulation, Modularity, and Hierarchy) Thanks for the help
*March 15, 2010*

**physics**

Weight is equal to the mass of the object multiplied by the force of gravity attracting the object. giving the equation W=mg with mass in kg (i)W=2000x9.8 = 19,600N (ii) for this one we need to work out what the force of gravity will be at an altitude of 1000km above the Earth...
*March 10, 2010*

**math**

place each of them on a common denominator of w^2, so it will become (49/w^2) + (8/w^2) = (57/w^2)
*March 9, 2010*

**PHYSICS**

alright then, I'll check out some books. Thanks for your help.
*March 7, 2010*

**PHYSICS**

Can you explain more of the theory side? with the double slit experiment, photoelectic effect, compton effect, reflection, refraction, stuff like that?
*March 7, 2010*

**PHYSICS**

How can an election be particle and a wave at the same time?
*March 7, 2010*

**geometry**

2x-3+4xx+1+2xx-3xx-5
*March 4, 2010*

**4th grade**

what kind of triangle has all 3 angles that are all less than a right angle?
*March 3, 2010*

**physics**

A 3 meter tall 40 degree inclined plane with a coefficient of friction of .3 with a box sliding from its top has this acceleration and final velocity.
*March 1, 2010*

**6th grade**

the industrial revolution helped provide jobs in europe
*February 25, 2010*

**Improving Your Writing**

I am also doing this same exam and confused of all the above! Someone please help us!!!!
*February 24, 2010*

**5th Grade Math**

What website can I go to to help me with my math?
*February 12, 2010*

**arithmetic**

how do you write this as a unit rate 25000/5
*February 9, 2010*

**college physics**

Vector A points in the negative x direction. Vector B points at an angle of 27.0 degress above the positive x axis. Vector C has a magnitude of 20 m/s and points in a direction 39.0 degress below the positive x axis. Given that A+B+C=0, find the magnitudes of A and B.
*February 8, 2010*

**math**

it is given that 'y' is 90% rewriting the equation using this value gives 0.9 = 0.0102x + 0.644 now simply solve for x
*January 28, 2010*

**5th grade**

what do moms use to read?
*January 25, 2010*

**5th grade speeling**

I need the analogy to figure out the word curved
*January 19, 2010*

**Waves-Science**

I had a couple of questions on the topic of Waves-Sound and Light. 1. What is the source of all waves? *Vibration* 2. In one word, what is it that moves from source to receiver in a wave motion? *Energy* 3. Does the medium in which a wave travels move with the wave? *No* 4. ...
*January 7, 2010*

**englisd-french**

Months (they are not capitalized.) janvier février mars avril mai juin juillet août septembre octobre novembre décembre Seasons le printemps (spring) l'été (summer) l'automne (fall, autumn) l'hiver (winter) I don't understand ...
*January 7, 2010*

**French**

1. à/Jean/allons/un/Nous/donner/pantaloon 2. Chapeaux/porte de/ne/pas/Lucie 3. professeur/Le/donne/examens/ne/d’/pas/faciles **I thought this one was=Le professeur ne donne pas faciles d’examens.
*January 7, 2010*

**French**

I need to know if either un, une, des, or de (d’) go in the following blanks. 1. Le professeur ne donne pas____ devoirs aujourd’hui. 2. Le père de Luc a _____ nouvelle voiture américaine. 3. Nous avons ______ amis à Berlin. 4.Le banquier porte ...
*January 7, 2010*

**French**

I need help unscrambling these words to form sentences in French. 1. Je/des/cherche/bibliothèque/à/livres/la 2. à/Jean/allons/un/Nous/donner/pantaloon 3. Chapeaux/porte de/ne/pas/Lucie 4. professeur/Le/donne/examens/ne/d’/pas/faciles **I thought this ...
*January 7, 2010*

**Intergarted Science**

I had a couple of questions on the topic of Waves-Sound and Light. 1. What is the source of all waves? *Vibration* 2. In one word, what is it that moves from source to receiver in a wave motion? *Energy* 3. Does the medium in which a wave travels move with the wave? *No* 4. ...
*January 7, 2010*

**physics =(**

A person on a small, 7.00 meter high, hill aims a water-balloon slingshot straight at a friend hanging from a tree branch 4.00 meters above and 6.00 meters away. At the instant the water balloon is released at 7.00 m/s, the friend lets go and falls from the tree, hoping to ...
*December 12, 2009*

**Physics**

Kyle wishes to fly to a point 450 km due south in 3 hours. A wind is blowing from the west at 50 km/hr. Compute the proper heading and speed that Kyle must choose in order to reach his destination on time.
*December 9, 2009*

**Physics**

A football is kicked at 45 degrees and travels 82 meters before hitting the ground. A) What was its initial velocity? B) How long was it in the air? C) How high did it go?
*December 9, 2009*

**physics**

for this question A bullet is fired from a rifle that is held 1.8 m above the ground in a horizontal position. The initial speed of the bullet is 1120 m/s. Find why is the equation just (.5)(9.8)(t^2)=1.8 why dont we have to take in account for initial velocity: (.5)(a)(T^2)+(...
*December 7, 2009*

**physic**

please help me im stuck. A 400 g air-track glider attached to a spring with spring constant 9.00 N/m is sitting at rest on a frictionless air track. A 600 g glider is pushed toward it from the far end of the track at a speed of 94.0 cm/s. It collides with and sticks to the 400...
*December 5, 2009*

**math**

the difference between two numbers is 3. the sum of the numbers is 45. what are the two numbers
*December 3, 2009*

**math**

the profits of Mr/ Lucky's company can be represented by the equation y=-3x^2+18x-4, where y is the amount of profit in hundreds of thousands of dollars and x is the number of years of operation. He realizes his company is on the downturn and wishes to sell it before he ...
*December 1, 2009*

**physics!!!!**

A spaceship passes Earth at a speed such that γ = 112. A creature aboard the vessel does the Mongoian greeting dance that takes it 21 s (on its clock -- bought on a previous visit -- which is why it reads in seconds) to perform. How long will the welcoming committee on ...
*November 30, 2009*

**Phyiscs**

two examples of everyday devices of relativity? besides a gps?
*November 29, 2009*

**United States History**

i think its e right?
*November 28, 2009*

**United States History**

What do the "sick chicken" case (schechter poultry) and Jefferson's objection to hamilton's bank of the United states have in common? A. both- neessary and proper clause B. oppostiion of direct taxation of fed govt C. attempts to control inflation thro bankng...
*November 28, 2009*

**cooking **

the common name for grain is called?
*November 18, 2009*

**cooking**

name the seven principle grains?
*November 18, 2009*

**cooking**

what does more liquid do for a recipe ?
*November 13, 2009*

**cooking**

question why are many eggs used in some recipes?
*November 13, 2009*

**COOKING**

ON MY ASSIGNMENT IT ASKS LIST ALL OF THE LEAVING AGENTS IN EACH RECIPE NOT SURE WHAT THAT MEANS
*November 12, 2009*

**COOKING**

WHAT DOES SUGAR DO IN A RECIPE?
*November 12, 2009*

**cooking**

what does more liquid do to a receipe?
*November 12, 2009*

**cook**

why are many eggs used in receipes
*November 12, 2009*

**math**

a function is defined as every "x" value giving a unique "y" value, if you have a graph then you can tell if it's a function by 'the vertical line test' simply a vertical line placed anywhere on the graph will only cross through the graph once ...
*November 10, 2009*

**Physics**

saying that the tree is stationary would give it a velocity of 0 therefor meaning it has no momentum as mass x 0 = 0 that sort of disproves your whole explanation think about the question too, what does the Law of Conservation of Momentum say? think about what a law is, can ...
*November 9, 2009*

**Chemistry**

apologies M(MgCO3*5H20) = 154 ratio = 70/154 = 0.4545 so 45.5% is water, same process as above just use this value instead
*November 9, 2009*

**Chemistry**

no i don't think the weight will be increasing after getting rid of the water. work out the molar mass of hydrated magnesium carbonate, then find the ratio of water to the whole thing in regard to molar mass eg M(MgCO3*5H20)= 144 M(5H2O) = 70 ratio = 70/144 = 0.486 this ...
*November 9, 2009*

**Chemistry**

sorry i'm a bit confused, what are we trying to find?
*November 9, 2009*

**physics 20 **

acceleration due to gravity must be factored in as the rocket is traveling upwards. since you have chosen up to be positive acceleration down must be negative, making gravity -9.8m/s the equation is still force=mass x acceleration accept the formula used to calculate ...
*November 3, 2009*

**Math**

the second answer would be -70 technically all square roots have two answers, when you multiply two negative numbers you get a positive number
*November 3, 2009*

**9th grade**

3 over the square root of 6
*November 3, 2009*

**algebra**

y=3x+4; -1, 1 2, 10 3, 12 7, 1 find the solution set for each equation , given the replacement set
*November 2, 2009*

**AP 9th grade-Philosophy **

In order to prove this thesis by the Greek Thales, "All substances can be reduced to water." what would i have to do?! im clueless...
*October 27, 2009*

**science**

How are elements represented on a periodic chart?
*October 26, 2009*

**6th grade**

Show me a plot diagram example please.
*October 26, 2009*

**chemistry**

density is given by mass/volume so if the density is 1.53 g/L then we rearrange the formula to find the mass which just happens to be 1.53grams due to there only being 1 litre so depending on whether the question is asking for how many moles of NAOH or how many grams of pure ...
*October 21, 2009*

**math**

I5p+12I = 7 there will most likely be 2 solutions if we treat it as 5p+12= +or-7 then it may be easier to see what is happening (if we get an answer of -7 from the equation, it will be changed back to +7 by the absolute value) so we have 2 equations now (1)5p+12=7 (2)5p+12=-7...
*October 21, 2009*

**Grammar**

corrrected? The new heart clinic is located at 555 NW First Street, Seattle, Washington 98104. He arrived at the hospital with a heavily bleeding gunshot wound. Differential diagnoses include: Diabetes, adult-onset Cholelithiasis, acute Endocarditis, subacuteTerry Brazelton, ...
*October 19, 2009*

**Grammar**

Are these correctly punctuated? Infection, for example, can be a complication of surgery. He arrived at the hospital with a heavily, bleeding gunshot wound. The new heart clinic is located at 555 NW First Street, Seattle, Washington, 98104. Additionally, anesthesia was given ...
*October 19, 2009*

**Grammar**

Are these sentences correctly punctuated? Mrs. Smith came to the hospital accompanied by her husband, Mr. Smith, and their youngest daughter. Naturally, if the need arises, I would be happy to see him again. Dr. Jones is an excellent surgeon, but does not have a good bedside ...
*October 19, 2009*

**grammar**

Are these correctly punctuated? This pleasant patient has been seen for therapy from February 2, 2005 to March 2, 2005. This patient comes in today with many, many complaints. This year she'll have a breast augmentation and next year she will have an abdominoplasty. ...
*October 19, 2009*

**BIOLOGY**

1.Three fatty acids form a triglyceride with one glycerol. What similarities would the fatty acids have with polysaccharides? What differences? 2. When you consume more food than you require, the mitochondria in the liver are involved n forming triglycerides from the excess. ...
*October 18, 2009*

**Math cont.**

The neighborhood skateboard club is starting a fundraiser in order to buy more skateboards. They have decided to sell logo mugs. The Mugs on Mugs Company offers to supply mugs to the club for $3.75 each plus a $55 process and handling fee. The Punny-Cups Company offers to ...
*October 16, 2009*

**help please(:**

The neighborhood skateboard club is starting a fundraiser in order to buy more skateboards. They have decided to sell logo mugs. The Mugs on Mugs Company offers to supply mugs to the club for $3.75 each plus a $55 process and handling fee. The Punny-Cups Company offers to ...
*October 16, 2009*

**Algebra**

Well, does it mean that n has to be the same for both?
*October 16, 2009*

**Algebra**

The neighborhood skateboard club is starting a fundraiser in order to buy more skateboards. They have decided to sell logo mugs. The Mugs on Mugs Company offers to supply mugs to the club for $3.75 each plus a $55 process and handling fee. The Punny-Cups Company offers to ...
*October 16, 2009*

**11th grade**

But, if i did get 3.5 that would mess up getting 6.25 or 10.25. 2(3.05) + .5(.3)= 6.25--correct. 3(3.05) + 1(.3)= 9.45... this is the one where i went wrong. i went wrong.
*October 15, 2009*

**11th grade**

wow haha im lost... 6w + 1.5j= 18.75 -6w - 2j= -20.50 ----------------- -.5j=-1.75 j=.3 ? why would i multiply?
*October 15, 2009*

**11th grade**

-.5/1.75= -.2857...or .3
*October 15, 2009*

**11th grade**

Yesterday Lucy walked 2 hours and 1/2 jogged hour and covered 6.25 miles. Today she walked for 3 hours and jogged for 1 hour and covered 10.25 miles. Assuming a constant walking rate and a constant jogging rate, how fast did she walk and how fast did she jog? Define two ...
*October 15, 2009*

**algebra...redo.**

Yesterday Lucy walked 2 hours and jogged 1/2 hour and covered 6.25 miles. Today she walked for 3 hours and jogged for 1 hour and covered 10.25 miles. Assuming a constant walking rate and a constant jogging rate, how fast did she walk and how fast did she jog? Define two ...
*October 15, 2009*

**messed up,,,redo.**

w- walking j- jogging 2w + .5j= 6.25 --> 3(2w+.5j)= 3(6.25) 3w + 1j= 10.25 --> -2(3w+1j)= -2(10.25 6w + 1.5j= 18.75 -6w - 2j= -20.50 ----------------- -.5j=-1.75 j=.3 2w + .5(.3)= 6.25 2w + 15= 6.25 2w= 6.10 w= 3.05 check: 2(3.05) + .5(.3)= 6.25 (correct) 3(3.05) + 1(.3...
*October 15, 2009*

**algebra**

Yesterday Lucy walked 2 hours and jogged 1/2 hour and covered 6.25 miles. Today she walked for 3 hours and jogged for 1 hour and covered 10.25 miles. Assuming a constant walking rate and a constant jogging rate, how fast did she walk and how fast did she jog? Define two ...
*October 15, 2009*

**science**

At the annual turtle races, Poindexter, the record holder, is trying to retain his title. As the race begins, Poindexter starts off racing North with a speed of 0.025 m/s. He retains this speed for 0.5 meters at which time he speeds up to 0.10 m/s. He continues at this rate ...
*October 14, 2009*

**Government**

judicial, executive(:
*October 14, 2009*

**ipc**

At the annual turtle races, Poindexter, the record holder, is trying to retain his title. As the race begins, Poindexter starts off racing North with a speed of 0.025 m/s. He retains this speed for 0.5 meters at which time he speeds up to 0.10 m/s. He continues at this rate ...
*October 14, 2009*

**12th grade**

what's the key factors which led to our constitution
*October 8, 2009*

**Statistics**

Binomial
*September 25, 2009*

**algebra 3**

Find a polynomial of lowest degree with only real coefficients and having the given zeros. -2+i, -2-i, 3, -3
*September 24, 2009*

**physics**

A car starts from rest on a curve with a radius of 120m and accelerates at 1.0m/s^2. Through what angle will the car have traveled when the magnitude of its total acceleration is 2.0 m/s^2?
*September 22, 2009*

**science**

why are crash test dummies so important
*September 22, 2009*

**math **

the gas tank of a car is 2/3 full. a trip uses up 1/4 of the gas in the tank. how full is the tank at the end of the trip? please include how you got the answer, thanks
*September 21, 2009*

**Science**

how do the wavelengths of radiant energy vary with the temperature of the radiating source? How does this affect solar and terrestrial radiation?
*September 17, 2009*

**history**

What was the bull moose party?
*September 14, 2009*

**Math**

What is the difference between division and multipication?
*September 14, 2009*

**Physics**

A shot-putter throws the shot (mass = 7.3kg) with an initial speed of 15.0 m/s at a 33.0 degree angle to the horizontal. Calculate the horizontal distance traveled by the shot if it leaves the athlete's hand at a height of 2.00m above the ground.
*September 12, 2009*

**Math**

How do i do the difference os quares if y and 9x are different.
*September 2, 2009*

**Math**

6x(squared) - 2xy ________________________ (divided by) y(squared) - 9x(squared)
*September 2, 2009*

**Math**

x(2nd power)+ 2x - 3 ________________________ (Divided by) x (2nd power) + 3x
*September 2, 2009*

**math am i correct**

do you mean the absolute value of -14? if so you are correct
*August 30, 2009*