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Whould you like to see this part "Homework Grades:K-12" of the forum removed, why or why not ?
2. ### 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))
3. ### 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))
4. ### 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 ?
5. ### 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 ?
6. ### 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 ?
7. ### 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"...
8. ### 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...
9. ### 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 ?
10. ### Why grapes don't mold

I left some strawberries for a little over a week in the refrigirator and I noticed some white fungus like stuff on them, what is that stuff, how come this doesn't seem to happen to other fruits like grapes ?
11. ### Poisson Approximation to Binomial

For a binomial distribution with n=10 and p=0.5 ,we should not use the poisson approximation because both of the conditions n>=100 and np<=10 are not satisfied. SUppose we go way out on a limb and use the Poisson aproximation anyway. Are the resulting probabilities unacceptable...
12. ### Ocean waters

why is sea water salty ?
13. ### Are there any seasons in regions along the equator ?

Are there any seasons in regions along the equator ?
14. ### Careers in science

What do science majors do when they finally get their diploma, how is conducting research like, how is job availability, pay like ? What kind of work do people holding an S.D do ? Read what physics professor Jonathan I. Katz has to say ! http://wuphys.wustl.edu/~katz/scientist.html [Broken]
15. ### How oxygen is released as a byproduct of photosynthesis

You know how oxygen is released as a byproduct of photosynthesis by plants, how does this affect the amount of oxygen in the air in the winter season in the areas when all plants are frozen ?
16. ### Strange values on disc capacitors

What do the strange values on disc capacitors signify exa 005 and 5D 1KV , why can't they just be abbreviated in a more intuative way like for exa just 10 micro farads ? Also for a small mic how can I tell apart which ends which + or 1 and what do the letters HAI signify on some...
17. ### Atmosphere's temperature

On a summer day how will the temperature of the stratosphere, mesosphere, thermosphere and exosphere differ ?
18. ### Absolute heat ?

Absolute temperature Is there such a thing as absolute temperature, where something just can't get any hotter ?