Robby

i need help making a catapult. im gonna check my pc tomorrow

17 years ago

The Intelligence Quotient (IQ) test scores are normally distributed with a mean of 100 and a standard deviation of 15. What is the probability that a person would score 130 or more on the test?

16 years ago

Square root of 14abc times the square root of 2ab

14 years ago

Number of Cans of Corn Cost 3 $1.95 5 $ 3.25 6 $3.90 9 $5.85 Write an equation to represent the data how do i do that

14 years ago

Number of Cans of Corn Cost 3 $1.95 5 $ 3.25 6 $3.90 9 $5.85 Write an equation to represent the data how do i do that I think the answer is 0.65n = c

14 years ago

Suppose that weights are bell shaped with a mean of 120 pounds and a standard deviation of 10 pounds. What percentage of weights is between 110 and 130 pounds

14 years ago

What does Que compras tu para tu madre? Mean

13 years ago

Calculate the molecular weight of a small protein if a 0.32 g sample dissolved in 161 mL of H2O has an osmotic pressure of 9.0 mmHg at 25 degree celcius. (R=0.0821 L X atm/K X mol)

12 years ago

Consider the following equilibrium: PCl3 (g) + Cl2 (g) yields PCl5 (g) delta H= -92KJ The concentration of PCl3 at equilibrium may be increased by: decreasing the temp (think this is it) adding Cl2 to the system the addition of neon the additio of PCl4

12 years ago

2NF3(g) yields N2(g) + 3F2(g) When 2.06 mol of NF3 is placed in a 2.00L container and allowed to come to equilibrium at 800K, the mixture is found to contain 0.0227 mol of N2. What is the value of Kp at this temp? 1.91 X 10-3 1.73 X 10-6 (think this is it...

12 years ago

At 900.0K, the equilibrium comstant (kp) for the following reaction is 0.345 2SO2 (g) + O2 (g) yields 2SO3 (g) At equilibrium the partial pressure of SO2 is 35.0 atm and that of O2 is 15.9 atm. What is the partial pressure of SO3 in atm? 6.20 X 10-4 ( I t...

12 years ago

Determine the direction of the following reaction from the relative strengths of acids and bases: H2S(aq) + C2H3O2-(aq) yields Hc2H3O2(aq) + HS-(aq) The book says this will favor the reactants. I'm confused...shouldn't this be neutral because both reactan...

12 years ago

A solution has a hydroxide-ion concentration of 7.48X10-5 M. What is it's hydronium-ion centration? I have no idea where to begin on this question...

12 years ago

What will happen if a small amount of hydrochloric acid is added to a 0.1 M solution of HF? A) The percent ionization of HF will increase. B) The percent ionization of HF will decrease. C) The percent ionization of HF will remain unchanged. D) Ka for HF w...

12 years ago

If some NH4Cl is added to an aqeous solution of NH3: A. pH of solution will decrease B. PH will not change C. pH will increase D. NH4Cl cannot be added to NH3 E. The solution will not have pH I think the answer is B, because if NH4Cl is added to the solut...

12 years ago

Calculate the degree of ionization of acetic acid in solution 1 through 3? All I am giving is the pH... pH of solution 1= 3 pH of solution 2= 3.5 pH of solution 3= 5 Then, I did this... HC2H3O2 (aq) + H2O (l) equals H3O+ (aq) + C2H3O2- (aq) Ka= 1.7 E -5 (...

12 years ago

1. In re Gault assured juveniles a. the right to a jury trial b. all the above c. due process in the legal system d. the right to be tried as an adult All the above 2. Obtaining a confession by__ is constitution a. misrepresentations b. psychologicalcoerc...

12 years ago

The river which carries the most traffic in Europe and is the continent's most important inland waterway is the: Is it the Rhine river or the Danube River not sure. i think it is the Danube River am i correct?

12 years ago

The annual snowfall in a town can be represented by the Normal model N(46, 6.8). In about 2.5% of the years, the annual snowfall in this town will exceed: A) 46 inches B) 39.2 inches C) 52.8 inches D) 59.6 inches E) 66.4 inches I don't know how to set thi...

12 years ago

If two variables are very strongly associated, the correlation between them will be near 1.0 or -1.0. A) False B) True I put false because the variable have to be quantitative and they have to be perfect...

12 years ago

A perfect positive or negative correlation means that A) the explanatory causes the y-variable. B) 100% of the variation is explained. C) we get the same regression equation if we switch the x and y variables. D) the slope of the regression equation is 1....

12 years ago

Which of the following is sometimes held to be the only event for which there is no cause? a.freewill b.emotions c.viruses d. moral character Is it free will not sure

12 years ago

Find the value of b, if any, that will make the function differentiable at x = 0 g(x)= { x+b, x<0 cos(x), x≥0 can you help, I got 0 but I don't know if that will make the function differential at x=0.

10 years ago

The rate of motion of the earth at its equator is about 1,038 mi/h because of its rotation. From this information, estimate the earth's circumference using an order-of-magnitude estimate.

10 years ago

H2 (g)+I2 (g)↔2HI(g) Calculate ΔG for the system at 700 K when the concentrations are [H2] = 0.12M, [I2] = 0.27M, and [HI] = 0.118M. What would be my first step? If I make an ICE chart, what would I do from there? I just need the first step to help me out...

10 years ago

Given that ​f(x)=x^2-15 and ​g(x)=10−​x, find ​(f−​g)(3​), if it exists.

8 years ago

Sir, thank you for answering. I thought it was the adding the Cl2, but it was wrong. That is why I went with decreasing the temp, but now knowing that it is wrong as well. I think my only option is the addition of PCl5 (which I meant to put at the top vic...

12 years ago

I think I tried to do the ICE and got... 2.06/2.00=1.03 M 0.0227/2.00=0.0114 M but got lost after that and ended up with 1.73 X 10-6...I am really struggling on these problems...

12 years ago

Thanks. Is there a way to tell how one acid is weaker than the other or do you have to memorize the charts?

12 years ago

Nevermind. I got it. It would help if I looked at the concentration data that my lab book gives me complete the problem:)

12 years ago

Obtaining a confession by _______ is constitutional. a. misrepresentations b. psychological coercion c. physical coercion d. none of the above I choose D. none of the above

12 years ago

Because perfect correlation is r= 1 or r= -1? Is my answer not correct?

12 years ago

6x+1408-88x=1072 you may move the decimal 1 place if you want 1408-82x=1072 1408-1072=82x 336=88x x=336/88

11 years ago

Dr. Bob, as grateful as I am you took the time to answer my question, I do not believe you are right. In order to get Q, it needs to be in atm, and I am dealing with M? if I am wrong, can you explain to me what I would need to do next?

10 years ago

I'm sure he means "^" as √ or the square root symbol

10 years ago

Dirty croch

9 years ago

I think it's Dee Johnson.

7 years ago

8.110789883... 8.1

7 years ago