Yongsun S

What is the factorial of 50,000?

and

What is the factorial of 49,940?

Thank you!

I'm a 20 year old girl, 5'7 and was hoping to buy my first motorcycle. Because I have no prior experience with bikes I was wondering what I should consider. I want a sport bike but I don't want something too powerful or fast because I know I wouldn't be able to handle it. I would be mostly using it as transportation for my commute to school and work.

I was looking at the kawasaki ninja 250, is that an alright choice?

THANKS!

I'm thinking about visiting Michigan near thanksgiving and was wondering what I should expect weather wise. Is it really that cold and will there be alot of snow? And if I do visit around that time, will there be anything to do?

I know the advantages are the isolation of purities, especially in metals. But what are the disadvantages?

"At t = 0, an object is projected with a speed v0 = 45 m/s at an angle q0 = 22° above the horizontal.

calculate the requested quantities at t = 7 s into the flight."

vertical velocity:

vy=v0sin(angle)-gt

vy=45sin22-(9.81 x 7s) = -69.07

I also tried without subtracting gt.

horizontal velocity:

vx=v0cos(angle)

vx=45cos22 = -44.99

I got both of them wrong. What is it that I'm doing wrong?

Please and Thank You

http://img.photobucket.com/albums/v212/shinhwalove...

At t = 5 s, how far is the automobile from its t = 0 initial position?

I have tried everything. The corresponding graph is above.

Please I need to know how to do it more than the answer.

Thank you

What is the molecular shape or structure of F3S-SF? (the dash represents a single bond between the two sulfur atoms.)

Is it...

see-saw

trigonal bipyramid

octahedral

tetrahedral

bent

linear

square pyramidal

trigonal planar

I know that the molecular shape is more than one. but I don't know which. I have tried trigonal bipyramidal and seesaw

trigonal bipyramidal and square pyramidal

square pyramidal and trigonal bipyramidal

Any help would be appreciated. Even just helping me figure out the lewis structure for this would be awesome.

Please and thanks!

Hi I need a little help with my homework. I need a detailed explanation more than an answer. please and thank you!

A car traveling at a speed of Vo = 35 m/s stops smoothly (that is, its deceleration is constant) over a distance of d = 169 m.

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a) What is its acceleration during the time it is stopping?

So for this one I rearranged the velocity equation from V^2 = Vo^2+2ad to a=V^2- Vo^2/2d.

Well I assumed acceleration was constant and plugged in the numeric value and got ~-4. But it's wrong. What did I do wrong?

The units are m/s^2

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b) How long (what amount of time) does it take for the car to come to a stop?

tstop = s

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c) After the car has gone 1/3 of the stopping distance, what is its speed?

the rest of the problems I couldn't get because I didn't get the first one. please help.

Hi I want to be a radiation therapist, but I'm at a university that doesn't offer the major. the only place that offers the program is this community college.

So, should I stay at the university get a bachelors degree. then go to the cc? Will it beneficial at all to get hte bachelors first? Or is it a complete waste of time and money?

At 2200°C, K = 0.050 for the following reaction.

N2(g) + O2(g) 2 NO(g)

What is the partial pressure of NO in equilibrium with N2 and O2 that were placed in a flask at initial pressures of 0.90 and 0.21 atm.

Please and Thank You.

I need an explanation more than an answer.

is this gallium dichromate?

Ga2(Cr2O7)3

if not, what is it?

please and thank you

Hi I'm only a freshmen in college with no definite clue of what I want to do or be. But I was considering becoming a social worker. I also want to get into the Masters Program.

So what are the general prereqs, if there is any.

And do I have to major in social work to get into the masters program?

and any other piece of advice would be greatly appreciated.

An impure sample of magnesium metal witha mass of 68.00mg is reacted with an excess of hydrochloric acid to release hydrogen gas. If 31.00ml of gas was collected over water at 35.C and .870 atm, what was the percent of magnesium in the metal assuming that the impurities will not react with HCl?

please can someone explain to me where to start and finish?

I need an explanation more than an answer.

Thank you so much!

1) Calculate the volume of gaseious ammonia produced at 655 TOrr and 42.0F by the reaction of 4.61g of hydrogen and 37.5 g of nitrogen in the Haber process if the process is 85.0% efficient.

3H2 (g) + N2 (g) <=> 2NH3 (g)

2) Calculate the volume of gaseous hydrogen at 745 mmHg and 35.0C collected over water by the dissolution of 2.15 g of Magnesium metal with an excess of hydrochloric acid.

Please can someone explain clearly how to start and finish.

Thank you so much. I need an explanation more than the answer.

Thank you once again.

Calculate the rate of diffusion of UF6 through a set of membrane if XeF6 diffuses throught he same membrane at a rate of 0.000156 meters/sec.

Calculate the rate of diffusion of deuterated methane through a set of membrane through a set of barriers if Fluorine will diffuse through the same barriers at a rate of 35.8 moles/sec.

Hi, I would love it if you could solve it out, but ultimately I need a good indepth explanation of where to start and how to finish.

PLEASE AND THANK YOU SO MUCH!

Can someone please balance this equation for me?

Ca3(PO4)2(s) + H2SO4(aq) > CaSO4(s) + H3PO4(aq)

I know this is the basics, and I'm usually good at it. But for some reason I can't balance this one. Blame the lack of sleep.

please and thank you

An organic compound contains C, H, N, and O. Combustion of 0.1023 g of the compound in excess oxygen yielded 0.2766 g of CO2 and 0.0991 g of H2O. A sample of 0.4831 g of of the compound was analyzed for nitrogen by the Dumas method. At STP, 27.6 mL of dry N2 was obtained. In a third experiment the density of the compound as a gas was found to be 4.02 g/L at 127°C and 256 torr. What are the empirical formula and the molecular formula of the compound?

I got C24H42O3N for the empirical formula. but that is totally wrong. could someone please help me

please and thank you

I was hoping that anyone could explain to me as much as possible on how to solve that problem and the following as well.

If a KClO3/KCl mixture weighing 1.48g loses 0.302g upon heating, what is the % KClO3 in the mixture?

*hint* heating a KClO3/KCl mixture will result in only the KClO3 decomposing. And any decrease in mass results from the decomposition of the oxygen.

there is 39% of oxygen in KClO3

and lastly...

Upon strong heating, Cu2(CO3)(OH)2 or Cu3(CO3)2(OH)2 decomposes to leave CuO(s) in the heating crucible. Upon heating of 1.102 g of sample, 0.796 g remains. Calculate the %Cu in the sample.

Please and thank you!

4.Consider the differential equation y'= -xy with the initial condition y(0)=1. Use Euler's method with h=0.1 to approximate y(0.3).

a)1

b) -0.198

c) 0.9702

d)0.956

e) none of these

5. Find the general solution to the first-order differential equation (dy/dx) - (dy/x) = x+1.

a) y= x^2 lnx - x + cx^2

b) cosxy=x^2 + c

c) 2y + ylnx^4 = x^2 + c

d)y=cx^2 - x^3

e)none of these

Please and thank you!

4.Consider the differential equation y'= -xy with the initial condition y(0)=1. Use Euler's method with h=0.1 to approximate y(0.3).

a)1

b) -0.198

c) 0.9702

d) none of these

5. Find the general solution to the first-order differential equation (dy/dx) - (dy/x) = x+1.

a) y= x^2 lnx - x + cx^2

b) cosxy=x^2 + c

c) 2y + ylnx^4 = x^2 + c

d) none

please and thank you