# Posts by Matt

Total # Posts: 2,390

c programming
string[] dDate = dob.Split('/'); string dDay = dDate[0]; string dMonth = dDate[1]; string dYear = dDate[2]; if (Convert.ToInt32(dDay) > 01) { if (Convert.ToInt32(dMonth) == 01 || Convert.ToInt32(dMonth) == 03 || Convert.ToInt32(dMonth) == 05 || Convert.ToInt32(...

Chem
If not all the alum dissolves in the water before adding the Ba(NO3)2 solution, what effect will this have on the sulfate percent error determination?

Chemistry
How much heat would you need to melt 20.0 L of ice that had frozen on a fruit tree.

math
2 times

math physics
you forgot gravity

@someone who can show me how to do this
infinate if x=1, then 6(1)+y=-3 6+y=-3 move the six y=-3+(-6) y=-9 or if x=-2, then 6(-2)+y=-3 -12+y=-3 subtract the twelve and add to the other side y=-3+(--12) two neg = positive thus y=-3 + 12 y=9

physics
5ms+16=21ms initial velocity (io) the delta v(t)=(ending velocity-io)/total deceleration time = (t)f/s^2 Thus, change in velocity = a t 0-21 = (t)f/s^2 second to top = t and therefore: d = Vi t + (1/2) a t^2

chemistry
First, find out how many moles of hydrogen there are Then, use Avagadro's Constant to find out how many atoms there are.

economics
ps is the difference between the amount that producers actually receive and the minimum amount that they would have to receive in order to supply the given level of output. On a graph, ps can be shown as the area above the supply curve and below the prevailing market price.

chemistry
the actual mass (g) = Number of moles x Molar mass, or m = n x M Number of moles of solute = Concentration (mol. L) x Volume of solution (liters) -1 or n = C x V

economics

Chem 30 Thermodynamics
your temperature increase -or decrease- is given by the specific heat (S) of the object. (s)pecific heat = (new temp)/mass*change in temp. or if youre crazy, calculate the actual change in temp = heat added/(mass x specific heat) and compare it to actual (known) heat capacity ...

math
Trick question...you have 9 blocks!

physics
Use the third equation of motion velocity to displacement Your initial velocity is 15m/s Your final velocity is 0m/s displacement is 0m substitute the values and solve time

physics
If you don't have laminar flow, then you need to figure Quadratic Drag, drag force is proportional to the square of velocity and to the cross-sectional area of the object. For which you'll need to id the correct Reynolds Number

physics
given laminar flow, the drag force is proportional to the radius of the sphere and to its velocity. Double the radius, double the drag force. Double the velocity, double the drag force. This is known as Stokes Drag

science
yup

physics
Work=mgh

pre calculus
cscB - sinB = 1/sinB - sinB = (1 - sinB*sinB)/sinB = (1 - sin^2B)/sinB = cos^2B/sinB = cosB*(cosB/sinB) = cosB(cotB)

math
6500-2500=4000 4000/2=2000 2500+2000=4500 or 6500-2000=4500

Abnormal Psychology

math
a total of 4 km in one hr. if she did at the same rate that would be 4 kph Time=distance/walk speed + distance/run speed (ie. walk * 2) T(x)=D/X + D/X*2

computer science programming
def sum(number): # we are defining a function a = 0 #defines a = 0 becuase we start at 0 in python sum=0 # defines sum at zero because we start at 0 while a<checked_input: #check everytime if the a is redefined if it still is true sum = sum + (a+1)#combination of this line...

computer science programming
what language?

35/5=7

Econ
Since quasilnear preferences is a special case of a utility function Then... u(x,y) = v(x) + y Taking the derivative and setting to zero, a condition for maximizing utility is v’(x) - p = 0 or p(x) = v’(x) p(x) vs x as inv demand function

Physics
Horizontal direction : IF angle is measured from y axis (vertical line) -> a(horizontal) = Fsin(32)/m IF angle is measured from horizontal -> a(horizontal) = Fcos(32)/m Vertical direction: [ here positive a means acceleration down, negative a means up] IF angle is ...

physics
The Temperature Coefficient of Copper (near room temperature) is +0.393 % per o C. This means if the temperature increases 1o C the resistance will increase 0.393%. does that help?

Physics
9.8 ballM/s^2

Math: ALGEBRA
How to solve this??? Solve for x. a+b= a+xy Solve for w. 2w+2h+L=p Solve for r. r(s+t)=u

Math: ALGEBRA
Omg thanks herp_derp

Math: ALGEBRA
How to solve this??? -1-8(x+12)> -44-8x -4(-12v-9)+6(-6+5v)> -4v+12v

CHEM 111
There are rules governing when a double displacement reaction actually takes place. Mixing these two solutions results only in a solution containing a mixture of Na+, NH4+ PO4 3- and Cl- ions. There is no reaction product. IE. the net ionic equation. This is not possible ...

CHEM 111
no reaction product

finance
interest rates dropping at 6% a year for 10 years?

math
divide by .66

algebra
50/3.6=13.8 lb

Science 8
2nd llaw: For example, you may realize, when looking for a car that the miles per gallon of a sports utility vehicle is always lower than that of a standard car. The reason behind this is explained in Newton’s Second Law. The mass of a sports utility vehicle is much ...

Finance
sorry about that, if the contract period is 12 months or less in duration, or if the contract produces a single outcome it's based on annual funding...otherwise incremental funding so A

Finance
appropriations are subject to the Annual Funding Policy...so B

HEALTH
yea

Science
metals/ceramics

physics
4π²R³ = T²GM and V²R = GM, where R = radius of orbit in metres, T = orbital period in seconds, V = orbital speed in m/s, G = gravitational constant ≈ 6.673×10−11 Nm²/kg², M = mass of Earth ≈ 5.98×1024 kg

science
nebular aggregation

science 1 question
last one is not significant, as 0 add's nothing to the data

science 1 question
343.2

SS
island/continent, desert/ocean, mountain/canyon

Physics
no takers?

Physics
also, any ideas of finding the exact gravitational force / gravitational acceleration data for my location?

Physics
I need to determine maximum tension/down force with a pendulum. I need to use the lightest string possible to: -support a 16kg bob, with -a velocity of 4m/s -with a swing radius of 2m -at it's equilibrium (ie 0 degrees) -given standard gravity. using T=m(V^2/r)+(g*cos(x)) ...

geometry
For every 10 yards on a football field, there is a boldly marked line labeled with the amount of yards. There are two parallel sidelines on each side of the field. If the 50 yard line is perpendicular to one of the sidelines, what is its relationship to the other sideline?

-_-

Find the best word to complete the sentence. 1. specter 2. specimens 3. reiterate 4. refuted 5. vigilant 1. Find the best word to complete the sentence. In Charles Dickens's A Christmas Carol, the ___ of Jacob Marley returns from the grave to haunt his business partner, ...

History
prophets

statistics
Slf-Esteem Scoresdepression Scores Mean 3.43 15.78 StrdDev 0.75 10.34 13. The above chart contains the means and standard deviations for self-esteem scores and depression scores. Using this information and the most likely correlation coefficient obtained in Question 12 (-.76...

Please and thank you :D 1.A 2.B 3.B 4.B 5.B 6.C 7.C 8.B and C 9.D 10.B 1.Who is most likely to study written records? A.historians B.archaeologists C.geologists 2.Which is a primary way an archaeologist would decide where a temple stood? A.evaluating clues on clay tablets B....

Math-calculus
At a certain point on the beach, a post sticks out of the sand, it's top being 76 cm above the beach. The depth of the water at the post varies sinusoidally with time due to the motion of the tides. The depth d is modeled by the equation d=40+60cos(PI/2(t-2)) where t is ...

HELP
Shane's seats at the concert were so far from the stage that he could not ____________ who was the lead singer and who was the guitarist

11.abhor : detest 12.infraction 13.resolute 14.infringe 15.abound 11.Find the pair of words that has the same kind of relationship as the numbered pair. abscond : flee :: A. ascertain : forget B. concise : cut C. discern : hide D. abhor : detest 12.In India, mistreatment of ...

The ones with ** ** around the answer choices is what I picked 1.Find the best word to complete the sentence. Because of the camera's precision, linesmen at national tennis competitions are now ___ from error in determining if a ball lands in or out of the court. A.**...

Please check my answers...the ones with ----then a answer choice (is my answer) 1. Find the best word to complete the sentence. My brother clung ___ to his belief that Alfred Hitchcock was the greatest film director of all time. (Points : 1) coherently ineptly -------...

Physics
does the mass always have to be in kilograms? If it is not, do we convert it to kg?

Physics
So the answer is 29.4? Our mass is 10.0 kg right?

Physics
If a block of mass 10.0 kg rests on a horizontal surface, and the coefficient of static friction is 0.300, what is the maximum static friction that can act on the block? If you could walk me step by step on completing this problem, I would be extremely grateful and it would be...

6.B 7.C 8.A 9.B 10.B 6.Which words make up the adverb phrase in the sentence? Which word does the adverb phrase modify? After sunset the pack of coyotes howled loudly. A. howled loudly modifies coyotes B. the pack of modifies coyotes C. After sunset modifies howled D. coyotes ...

Thanks...I will post my other set

Thanks for checking my answers 1. D 2. C 3. C 4. C 5. D 1. Which words make up the adverb phrase in this sentence? After his speech,the politician greeted his supporters. A. his supporters B. greeted his C. the politician D. After his speech 2. Which words make up the adverb ...

physics
an object has a weight of 5.10 Newtons at sea level, where the acceleration due to gravity is 9.81 m/s squared. What is the acceleration due to gravity on the object if it is placed in a spaceship 1,000 km above sea level which gravity exerts a force of 3.81 Newtons on the object

3 Direct Objects questions CHECK PLEASE
THANK U I LOVE U !!!!

3 Direct Objects questions CHECK PLEASE
8.B 9.B 10.D 8.Which word in the sentence is the direct object? The vibration brings worms up to the surface. A.up B.worms C.vibration D.surface 9.Which word in the sentence is the direct object? Last week, the restaurant served three hundred meals. A.week B.meals C.three D....

Here is the rest 8.Which word in the sentence is the direct object? The vibration brings worms up to the surface. A.up B.worms C.vibration D.surface 9.Which word in the sentence is the direct object? Last week, the restaurant served three hundred meals. A.week B.meals C.three ...

sorry...WHY DOES THIS KEEP HAPPENING TO ME

Please check this is the last set of 5 questions thanks :D 6.A 7.C 8.B 9.B 10.D 6.Which word in the sentence is the direct object? Then we picked the ripe peaches from the sagging branches. A.peaches B.ripe C.branches D.sagging 7.Which word in the sentence is the direct object...

can you help with 4?

1.D 2.C and A 3.canoe 4.D 5.B and E 2.Which words in the sentence are the direct objects? The woman grows tomatoes and cucumbers in her garden. Choose all answers that are correct. A.tomatoes B.woman C.cucumbers D.garden E.grows 3.Which word in the sentence is the direct ...

After his speech, the politician greeted his supporters. A.his supporters B.greeted his C.the politician D.After his speech

Help
all I have are 10 questions from a study guide would that work?

Help
Completely lost. Thanks

Help
Im trying to study but I need to know what (adverb phrases) are? 1.Please tell me what they are? 2.Please tell me how to identify them in a scentence? Please don't give me a link with a huge text of extra stuff...I just want to know how to identify them and what they are. ...

thanks...I will post another 5 ok Please delete this

Thanks for checking 1.D 2.C 3.B 4.C 5.C 1.According to "Michael Faraday's World," which intrigued Michael Faraday? A.automobiles B.airplanes C.photography D.batteries 2.How are the operating room in the Williams story and the atom-splitting lab in the Fermi story...

Thanks for checking 1.D 2.C 3.B 4.C 5.C 1.According to "Michael Faraday's World," which intrigued Michael Faraday? A.automobiles B.airplanes C.photography D.batteries 2.How are the operating room in the Williams story and the atom-splitting lab in the Fermi story...

im stupid ok

which fraction si greater than -7/5? a.-5/9 b.-6/11 c.-1/2 d.-4/9 i think its A

math
the x is 2029 the year i think

I dont understand this
Which sentence has a misplaced adjective phrase? A. The dog chewed its bone with soft brown fur. B. The house on the left was finished six months ago. C. The cactus on the windowsill should be left alone. D. The clothes in the basket need to be washed

Chemistry 2
Pure nitrosyl bromide, NOBr at 0.762 M is placed into a sealed vessel and heated up to 400 K. When the system reaches equilibrium, it is found that 65.1% of the nitrosyl bromide has decomposed to nitrogen monoxide and bromine. Determine Kc for this reaction at 400 K: 2 NOBr(g...

math
reciprocal is simple, you just have to 1 divided by the number. In this case, reciprocal of 8 =1/8 In a more general view, reciprocal of x=1/x

Chemistry
Find the pH of 1.0E-8 M H2S04 (H2SO4 <==> 2H^+ + SO4^2-) I have got answer to be 7.70, can you confirm the answer for me please? If it is not good, i'll be very grateful if you could leave some guides.

Math
|-8| = 8 and 8 is greater than (>) -9 apply the same for others

Math
> >

Bio
You want to study the effects on the organism of high circulating levels of LDL using a mouse model. Which one of the following tools would be best to use in your studies? add an extra copy of the HMG CoA reductase gene fused to the GFP coding sequence add an extra copy of the...

i think its nervous Which word in the sentence is the predicate adjective? During the scary movie, Clinton seemed nervous. A. during B. Clinton C. nervous D. movie