Friday

July 3, 2015

July 3, 2015

Total # Posts: 832

**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*

**4th grade Language Arts**

what is the complete predicate in the sentence He sometimes stays at our home
*August 28, 2009*

**Math**

i'm guessing Liz meant questions not equations
*August 27, 2009*

**Algebra**

substitute in what you can from the info you are given in this case change 'A' to 'D+E' this gives us D/D+E =0.35 & D+E/E see if you can take it from here
*August 27, 2009*

**Computers**

if this is your code Private Function F(x as Int, y As Int, z as Int) If (y = 1) then Return 2 Else Return x * Z - y + F(x-1,y-1, z) End If End Function what is your test data. if you test this code with y=1 then you will get an answer of 2, else Return x * Z - y + F(x-1,y-1, z)
*August 27, 2009*

**Math PIZZAZZZ**

whats the expression?
*August 27, 2009*

** math 5th grade**

sorry the answer to the original question is 21,100,000. the example i used would be 22,000,000 because this has been rounded to the nearest 100,000 but in doing so we have reached another million, make sense?
*August 27, 2009*

** math 5th grade**

sure would :)
*August 27, 2009*

** math 5th grade**

if we have a number that is 21,079,000 and we need to round to the nearest 100,000 then we are looking at this part of the number 21,(079),000. the 21 million has no effect on the rounding, so treat it as rounding 79,000 to the nearest 100,000. if the question was to round 21,...
*August 27, 2009*

**MATH**

lets start by multiplying out the brackets 8g+416-96=504+6g-84 then combine the like terms 8g+320=420+6g we then group the g's on one side and our numbers on the other 8g-6g=420-320 which leaves us with 2g=100 meaning g=50 hope this helped post back if u got any questions :)
*August 27, 2009*

**Math**

I'll answer 2. to get rid of the y's we make this a simultaneous equation (1)4x-y=-9 (2)3Y-2X=7 the number of y's must be equal so that they will cancel eachother out when we add them together so 3*(1)=12x-3y=-27 then we do (1)+(2) 12x-3y+3y-2x=-27+7 hopefully you ...
*August 27, 2009*

**Algebra**

inverse is 1/(8x^2-9) then make this true for x>= 0 tell me what you get
*August 26, 2009*

**Math**

12*(-8) is -96 the absolute value just makes this a positive value so the I12(-8)I is 96
*August 26, 2009*

**check geo**

i hate to tell you but communism has nothing to do with monarchs, lords and nobles. If unsure with a question like this, probably the best thing to do is a quick search on all your possible answers, this will probably give you the answer you are looking for quicker than ...
*August 26, 2009*

**Chem**

DrBob222 is perfectly correct although it does say in the question that the same amount of salt is added at both temperatures. when the snow is at -2 degrees the addition of the NaCl lowers the temperature that the snow melts at to somewhere between -2 and -30 degrees. However...
*August 25, 2009*

**Need Help!! Algebra**

linear is a straight line such as y=ax+b while y=ax^2+bx+c is non linear. a function is defined as each x value giving a unique y value. I'll leave you to take it from here, hope this helped.
*August 25, 2009*

**physical science explorations**

well if F=ma and a=v-u/t (final velocity-initial velocity/time) so combining these two equations we get F=m(v-u/t) which gives us F=mv-mu/t if the car is to stop then obviously the final velocity is zero (now this will give us a negative answer but that is OK because it is a ...
*August 25, 2009*

**Chem**

if something dissociates then that means that it completely dissolves in a solution. so DrBob222 is completely correct as NaCl, MgCl2 and CaCl2 all dissolve. unlike table sugar. check a solubility table if you are ever unsure.
*August 25, 2009*

**physical science explorations**

ok now Force Force = mass*acceleration use the acceleration you calculated in the first question to find the force exerted on the puck
*August 25, 2009*

**physical science explorations**

a=(v-u)/t where v=final velocity, u=initial velocity and t= time in seconds initial is 0 m/s go from here yourself :)
*August 25, 2009*

**physical science explorations**

see the post above
*August 25, 2009*

**Science**

if something works 100% of the time then there would be no errors, human or equipment related
*August 25, 2009*

**GEOMETRY**

always draw a diagram as a visual aid if you are having problems with a question
*August 25, 2009*

**Math**

i think Gina may mean the factors of a number, like the factors of 12 are 1,2,3,4,6,12 one way is to start at the lowest factor and write down its pair, ie: 1*12, then 2*6 then 3*4, when you get to 4*3 you have started to overlap meaning that you have reached the maximum ...
*August 25, 2009*

**Physics**

we know that the force the table is exerting on the box must be equal to the force that the box is exerting on the table. in reality the 85N of the box is not the force that is being exerted on the table because the 30N on the other end of the rope is acting against the 85N ...
*August 25, 2009*

**English**

5 is fine except for the last line "That means your are happy?". 'That means you're happy' is a much better sentence.
*August 25, 2009*

**math**

you can of course just do it in one step and take out 6x^4 if you are comfortable enough to do that
*August 25, 2009*

**math**

divide through by 6 first 6(x^6+5x^5+6x^4)=0 take out the lowest common factor x^4 6x^4(x^2+5x+6) then factorise the bracket 6x^4.(x+2)(x+3)
*August 25, 2009*

**math**

i'm not entirely sure what you mean by expanded form for a single number.
*August 24, 2009*

**Chemistry**

when going from seconds to hours, first times by 60 to get to minutes then 60 again for hours, or just multiply by 60*60=360. the most common conversions you will have to do in sciences are from m/s to m/hr and back again. (however km/hr is the more commonly used units) so ...
*August 24, 2009*

**AP GOVT**

According to John Locke's 'Second Treatise of Civil Government', what is the importance of the constitution?
*August 24, 2009*

**AP GOVT**

Where in the constitution (in the first 3 articles) can you find 'a power that the executive branch has over the judicial branch';'a power that the legislative branch holds over the executive branch'; and 'a power the judicial branch holds over the ...
*August 24, 2009*

**AP GOVT**

What documents in American politics have been influenced by John Locke's philosophies? (specific examples)
*August 24, 2009*

**Math**

in saying first spot, i am not implying an order i am saying that there are 3 spots to fill, which there are. they would not be counted twice as you are lowering the number of available people left to fill a spot each time. since there are no repeats once somebody fills a spot...
*August 23, 2009*

**Math**

i in turn respectfully disagree with Reiny. from 8 people there are 3 spots to fill and as correctly stated there is no ordering, this means that for the first spot there are 8 people to choose from, the second there are 7 people left to choose from and the third spot there ...
*August 23, 2009*

**Math**

an easier way to think about it is that you have 6 ways to choose first place and considering that the same person can not get second place you only have 5 to choose from for second place and of course 4 people to choose from for third place. that makes it 6*5*4 possibilities=...
*August 23, 2009*

**Math**

on a very basic level decimals are just parts of numbers, like fractions of a whole. with each place to the right being 10 times less than what it was previously eg 0.1 is ten times less than 1 and 0.01 is ten times less than 0.1. this also makes 0.01, 100 times less than 1. ...
*August 22, 2009*

**math**

cooking, measuring flower etc, 3/4 cups, cement mixing need the right ratio of water and sand to cement, i'm sure you can think of one more for yourself
*August 22, 2009*