gnozahs
Most popular questions and responses by gnozahs
Calculus
If f(x)=4sinx/1+cosx then f'(x)=_____? I think that the derivative of 4sinx would be 4cos and cosx would be sinx but I don't know where to go from there.
asked on June 5, 2009 
Chemistry
Use the drawing of a molecular orbital energy diagram for ClF to predict the bond order?
asked on May 4, 2009 
Chemistry
Rank the crystal lattice structures in order of decreasing efficiency of space in the structure? Face centered cubic, body centered cubic, simple cubic, hexagonal close packing.
asked on May 14, 2009 
Chemistry
In the context of a siliconbased semiconductor, match each of the following descriptions to the type of semiconductor. dopant:boron contains electron holes contains extra electrons dopant:phosphorus ntype semiconductors or ptype semiconductors
asked on May 14, 2009 
C Programming
Write a program that prompts the user to enter a temperature, followed by a letter representing Celsius (C) or Fahrenheit (F). Then prompt the user for the conversion type and print the results to the screen with one decimal point. If the user enters a
asked on September 24, 2009 
Chemistry
Use the drawing of MO energy diagram for CO to predict the bond order.
asked on May 4, 2009 
Calculus
find the derivative of f(x)=tanx4/secx I used the quotient rule and got (sec^2x4)(secx)(tanx4)(cosx)/sec^2x but I'm pretty sure that's wrong. Help. Thanks.
asked on June 10, 2009 
C Programming
Okay, question. What if I inputted this: Enter a temperature: 32 Enter 'C' for Celsius or 'F' for Fahrenheit: c Choose a conversion ('C' for Celsius or 'F' for Fahrenheit): c The temperature is: 0.0 C. I want the program to read [The temperature is: 32 C.]
asked on September 29, 2009 
Calculus
Use implicit differentiation to find the slope of the tangent line to the curve sqrt of x + sqrt of y = 8
asked on June 10, 2009 
C Programming
How do you reprompt after the user inputs a wrong number into the program in C Programming? Loop structure? i.e. I want my code to do this: Enter a Compass Heading: 500.7 Please Input a Compass Heading between 0 and 360 Degrees. Enter a Compass Heading:
asked on September 30, 2009 
C Programming
This is what the program needs to do: Enter a temperature: 32.4 Enter 'C' for Celsius or 'F' for Fahrenheit: C Choose a conversion ('C' for Celsius or 'F' for Fahrenheit): F The temperature is: 90.3 F. How would I store the input when it asks for C or F,
asked on September 25, 2009 
Calculus
Consider the function f(x)=x^4 + 8sqrtx Let F(x) be the antiderivative of f(x) with F(1)=4. Then F(x)=_____
asked on June 23, 2009 
Chemistry
What is the vapor pressure of ethanol at 13 C?
asked on May 11, 2009 
C Programming
I don't know what to do now. Below is my code I have so far but I have no idea what to do next. Here's the prompt for what the program should do: Welcome to the Weather Balloon Altitude and Velocity Program. Enter the Balloon's Starting Time: 1 Enter the
asked on October 2, 2009 
Calculus
f(x)=sin^(7)x The 7 is an exponent and the x is not. Find the derivative.
asked on June 8, 2009 
calculus
Find the derivative of f(x)=[lnx]^4
asked on June 11, 2009 
Calculus
If f(t)=(t^2+6t+2)(3t^2+3) then f'(t)=_____? and f'(3)=______?
asked on June 5, 2009 
Calculus
If f(x)=6x+9/3x+1 then f'(x)_____? and f'(3)=_____?
asked on June 5, 2009 
calculus
Determine the infinite limit of the following function. Lim as x>zero 1/x^2(x+7) and lim as x>3 from the left side 2/x3
asked on June 1, 2009 
Calculus
If the equation of the tangent line to the curve: xy^3+xy=6, (3,1) find m and b
asked on June 11, 2009 
Chemistry
Xrays with a wavelenth of 1.70A scatter at an angle of 21.5 degrees from a crystal. If n=1, what is the distance between planes of atoms in the crystal that give rise to this scatterying? So far I've gotten .367 radians but I have no idea where to go from
asked on May 14, 2009

C Programming
Also, what do you mean by set maxHeight to 1000; ?
posted on October 3, 2009 
C Programming
Ok, I changed all my floats to double floats and changed my scanfs to read in double floats. I'm looking at the code you posted and I have a question. What would go into "time"? Like when you say time=staringtime; time
posted on October 3, 2009 
C Programming
I remember my instructor telling us that we couldn't use a for loop to create the table because for loops must use integers, and for us to use a while loop since the starting time, time increment, and ending time are floating point numbers, and not
posted on October 2, 2009 
C Programming
Ah! Thanks. When I was doing my if and while statements, I kept doing (heading < 0.0  > 360.0) and kept wondering why it wasn't working. It needs to be while (heading 360.0);
posted on October 1, 2009 
C Programming
Hmm, code was too long for the post? Here's a second try. /* Directives */ #include int main(void) { double heading; /*compass heading in degrees*/ /* Get compass heading */ printf("Enter a Compass Heading: "); scanf("%lf", &heading); /* Display equivalent
posted on September 30, 2009 
C Programming
Yeah! I keep forgetting to write comments for each part of my code. But I'll make sure I write up good comments for the code.
posted on September 30, 2009 
C Programming
Yes, I have learned the if else statements. I made another switch statement within the first switch statement to account for the F to F and C to C and that did the trick. Thanks.
posted on September 29, 2009 
C Programming
MathMate was helping me with it the other day. Everything works correctly except for when I convert it from Celsius to Celsius (same thing), I'm wondering how I would make a code to make it output the same input number since it's going to be the same
posted on September 29, 2009 
C Programming
Yeah, at first I had the formulas in the wrong place, then I put 5/9 in one of the formulas instead of 9/5. Thanks for all your help man. I don't know what I would do without you. THANK YOU!!!
posted on September 26, 2009 
C Programming
Oh! There's my problem. It's 9/5, not 5/9.
posted on September 26, 2009 
C Programming
Hmm, my F to C conversion works fine but my C to F is not giving me the right output. My code for C to F is (temp * 5/9) + 32. I think it's the way you divide the 5/9. Starting out with 32.4, when I do it a certain way on my calculator, I get 50, which the
posted on September 26, 2009 
C Programming
It doesn't close out the window. It just goes back to the ~> Now I just gotta figure out why my math is wrong since it's not spitting out the correct temperatures after the conversion.
posted on September 26, 2009 
C Programming
We have just talked a little bit about loops structures. Haven't gotten into any coding with it though.
posted on September 26, 2009 
C Programming
Nevermind! I found out how to end the program if it's not C,c,f,F after experimenting. return(0); =]
posted on September 26, 2009 
C Programming
Ok, I replaced the second switch with the code you provided earlier and now I got the second switch to operate correctly. I'm just wondering how to end the program if the user does not enter C,c, F, f.
posted on September 26, 2009 
C Programming
Thanks! Now the first switch is working. But how do you end the program if the user inputs something else than C,c,F,f? It displays "Invalid Syntax" but it still moves onto the next line. I want it to just stop at "Invalid Syntax" if the user doesn't input
posted on September 26, 2009 
C Programming
Okay, so since my first switch statement is useless, how would I go about getting the program to only recognize F, f, C, and c only and if anything else than that is inputted for it to display "Invalid Syntax"?
posted on September 26, 2009 
C Programming
Alright. I think I'm almost there. I'm just having a slight problem when I'm running the program. This is how it should look like (for reference). Enter a temperature: 32.4 Enter 'C' for Celsius or 'F' for Fahrenheit: C Choose a conversion ('C' for Celsius
posted on September 26, 2009 
C Programming
Oh yeah, and I need to use a switch statement in this program. The instructor's orders.
posted on September 26, 2009 
C Programming
I'm guessing the //get char. from keyboard is a comment telling what the code you just wrote means?
posted on September 26, 2009 
Calculus
I couldn't figure it out.
posted on June 23, 2009 
Calculus
Oh, the s is not supposed to be there.
posted on June 22, 2009 
spanish
Try using the online translator and see if that helps?
posted on June 13, 2009 
calculus
Thank you! I've been stuck on that problem all night.
posted on June 11, 2009 
Calculus
cos(x) + 4 sin(x) is correct. How did the 4 end up with the sin and not with the cos?
posted on June 10, 2009 
Calculus
I got the same answer but for some reason, it's not the right answer(webwork). Thanks though!
posted on June 8, 2009 
Chemistry
Ethanol has a heat of vaporization of 38.56 kJ/mol and a normal boiling point of 78.4 C.
posted on May 11, 2009