Recent content by Victor Frankenstein

  1. V

    Homework Grades:K-12

    There kids in high school already taking advance math and science courses so thats where im comming from, high school algebra II for exa is pretty much the same as college algebra, concepts such as factoring a cubic polynomial doesn't change. Same with high school physics courses, problems...
  2. V

    Tangent Lines

    I did that and I got something like 1/2*Sqrt(a) by taking the lim as h->0, giving a slope of 1/4, but the answer is sopposed to be y=(1/20)*x+(1/5) can you please show me how they got this ? By the way is that factor you posted called a conjugate ?
  3. V

    Homework Grades:K-12

    Whould you like to see this part "Homework Grades:K-12" of the forum removed, why or why not ?
  4. V

    Tangent Lines

    I need to find an equation for the tangent line to the graph of the function at the specified point, I had some trouble simplifing f(x) so that I can take the lim as h->0 which is the slope. f(x) = Sqrt(x)/5 at (4,(2/5))
  5. V

    Tangent Lines

    I need to find an equation for the tangent line to the graph of the function at the specified point, I had some trouble simplifing f(x) so that I can take the lim as x->0 which is the slope. f(x) = Sqrt(x)/5 at (4,(2/5))
  6. V

    Significant figures

    How many significant figures should be retained in the result of the following calculation. (11.13 - 2.6) * 10^4 ----------------------- (103.05 + 16.9) * 10^-6 is it 1 , 2 , 3 , 4 or 5 ?
  7. V

    Significant figures

    How many significant figures should be retained in the result of the following calculation. (11.13 - 2.6) * 10^4 ----------------------- (103.05 + 16.9) * 10^-6 is it 1, 2, 3, 4, or 5 ?
  8. V

    Clock_t start, stop in C

    What about running the program in while booted dos mode, would it be accurate it that case ? How would I use a windows api with turboC, are there any other methods for counting microseconds in turboC ?
  9. V

    Determine the velocity of an electron orbiting an atom ?

    Is it possible to determine the velocity of an electron orbiting an atom ? Would the velocity be greater for an atom with more mass ?
  10. V

    Clock_t start, stop in C

    Im using turboC so I don't have that fancy rtc.h library. What about counting how many seconds a longer {loop(containing var=var+1) while var<1,000,000} will take using clock_t and then... dividing by the number of seconds for the entire sequence by 1,000,000 to get the number of seconds it...
  11. V

    Clock_t start, stop in C

    In this program im using I first declare clock_t start, stop then later position start and stop in a loop. To count how long a switch is turned on. The smallest value I see outputed is no lower than 0.05 sec but I want to be able to count miliseconds. printf("pulse length is %f seconds\n"...
  12. V

    Law of multiple proportions

    Sulfur forms two compounds with fluorine. In one of them it is observed that 0.447 g of sulfur is combined with 1.06 g of fluorine while in the other, 0.438 g of sulfur is combined with 1.56 g of fluorine. Show that these data illustrate the law of multiple proportions. would...
  13. V

    Screws and gears

    Must they heat the sheets like red hot when they stamp them out, making the metal easier to shape when forming them into gears ?
  14. V

    Screws and gears

    How are those tiny screws and gears manufactured, do they have some kind of crucible prepared and pour molten metal in them ?
  15. V

    Why grapes don't mold

    Can consuming fungi be hazardous to ones health ?
Top