# Questions Asked onOctober 3, 2006

1. ## math

The equation d =70t represents the distance in miles covered after traveling at 70 miles per hour for t hours.....what is d when t = 2.5? ...what is t when d =210? please help im desperate here...iv been studying all day help me my brain hurts!!!!!!!!!!!

2. ## pre-calculus

the spread of oil leaking from a tanker is in the shape of a circle. If the radius r (in feet) of the spread after t hours is r(t)= 200 square root of t, find the area A of the oil slick as a function of the time t. You know that the area of a circle is

3. ## Physics

An 1800-kg car starting from rest accelerates constantly during the first 9.50 s of its motion. If the force acting on the car is 2150 N, what is the car;s speed at the end of this time? 2150 N = 1800 kg. (a) a = 1.194 (1.194)(9.5 s) = 11.347 m/s correct?

4. ## More Darn Physics

what force must be exerted on an electron to move it from a state of rest to a speed of 3.5 x 10^7 m/s in a distance of 0.75 m? Look up the mass of the electron and call it m. Then compute the required acceleration a, using V = sqrt(2 a X) (Solve that for

5. ## photoautotrophs

oxidize chemicals to obtain energy obtain energy from light and carbon from carbon dioxide use light energy to synthesize water and sugar obtain electrons from oxygen and carbon from organic molecules WHICH ONE DO WOULD YOU PICK. I AM CLUELESS. This site

6. ## more chem :(

One method of removing CO2(g) from a spacecraft is to allow the CO2 to react with LiOH. What volume, in liters, of CO2(g) at 26.0°C and 793 Torr can be removed per kilogram of LiOH consumed? 2LiOH(s) + CO2(g) -> Li2CO3(s) + H2O(l) Use stoichiometry to

7. ## chemistry

A mixture of CH4(g) at 0.500 atm and O2(g) at 0.750 atm is present in a 3.00-L container at 28°C. The mixture is ignited by a spark and reacts according to the equation provided below. What is the total pressure in the container, now at 44°C, after the

8. ## computers

the def of the shift key? "The shift key is a modifier key on a keyboard, used to type capital letters and other alternate "upper" characters." From wikipedia =) Depending on what applications you are using, the shift key can modify other commands. for

9. ## social studies

what are the five great lakes You can find that at the site below: http://worldatlas.com/webimage/countrys/namerica/greatlk.htm they are lake superior lake michagan lake huron lake eria lake ontario

10. ## drive-ing problem

hi this is my problem... A shaft turning at the 1800 r/min is coupled to a gear with 80 teeth, matching a gear with 62 teeth. In turn this gear is fitted to an intermediate shaft driving a gear with 40 teeth. This gear in turn drives a gear with 96

11. ## Food Webs and Food Chains

does any one know any food chains or food webs? its an emergency! http://en.wikipedia.org/wiki/Food_chain

12. ## Math

Find a quick and easy method to compute the sum of the first 100 counting numbers. I can't use a calculator. I can't figure out an easy way. 1+2+3+4+5...........98+99+100 Carl Freidrich Gauss had no idea as to how famous his name would become when he

13. ## earth science

which term is best defined as a measure of the amount of space a subtance occupies? volume It looks like you have answered your own question. If it is three dimensional, it is volume. However, if it is two dimensional, it is area. I hope this helps a

14. ## Physics

A dock worker applies a constant horizontal force of 77.0 to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves 9.00 in the first 7.00 . What is the mass of the block of ice? Do it in

15. ## us history

"the american war is over, but this is far from being the case with the american revolution." i need to know 1 more event or area of american life that represents this quote, i already have government and the Bill of Rights The United States is still

16. ## Math-acceleration

An object moves across a straight line so that after t seconds, is distance from its starting point is: D(t)=t^3 - 12t^2 + 100t + 12 meters. Find the acceleration of the object after 3 seconds. I believe acceleration is calculated by taking the second

17. ## Pre-Calculus

The surface ares S (in square meters) of a hot air ballon is given by s(r)=4 pi r^2 where r is radius of balloon (in meters). If the radius r is increasing with time (in seconds) according to the formula r(t) = 2/3t^3, t is greater than or equal to 0, find

18. ## Earth Science

What commonly used metal is extracted from hematite? There are a number or iron ores. Hematite is one of them.

19. ## geometry

state the reason for the conclusion 1) given: angle 1 is congruent to angle 2 conlusion: the measurement of angle 1 is equal to the measuremnt of angle 2. what is the reason for the conclusion?????/? plzzz i need help like a lot Two angles are not

20. ## lattice math

Why should we estimate before solving a problem? We should estimate before solving a problem to make sure our answer is close to the real answer. Here's a simple problem. Suppose we want to find wnat a 6% tax on a \$10 purchase would be. When you do the

21. ## religion

it is a religion fill in the blank the truth that the son of god became man is called blank Because of lack of capital letters and correct punctuation, I'm not sure what you are asking. Are you trying to come up with a definition for "faith"? ??

22. ## geometery

m angle1=62 degree complementry to angle 2 I don't understand what you need.

23. ## Science

Which of the rock-forming mineral groups makes up the largest group of minerals in the Earth's crust? Look here for your answer. http://www.google.com/search?hl=en&lr=&ie=ISO-8859-1&q=minerals+earth%27s+crust&btnG=Search

what does 'alleviates diseconomies' mean ? I went to http://www.google.com and entered alleviates diseconomies as search words. You can, too, and perhaps find some websites that will help you with this terminology. Another strategy is to go to

25. ## math

I need a answer to 35+85+443 563 41 563 umm like adding them?or average or what??

26. ## RHETORIC

What is the role of rhetoric in influencing peoples attitudes amd beliefs? How can readers distinguish between prejudicial and nonprejudicial us of rhetorical devices? Posted by Ms. Sue on Tuesday, June 20, 2006 at 9:47am. Check these sites to help you

27. ## ECONOMICS

Need examples of topics dealing with 2 Economic Concepts.... Meaning .. Like Gas prices .. deals with supply and demand along with goods and services. Which two economic concepts? Please explain your question. I reposted Another post stating what exactly

28. ## spermatogenesis

can you tell me if this is right, I think it is the third choice. thanks the question is what is true of spermatogenesis Sperm production occurs several degrees above body temperature. The sperm cell consists of an acrosomal unit, which carries enzymes to

29. ## english writing rules

Directions:correcting the sentence given if needed under the rule of: Inclusive language-quoting form biased sources. The law from the 1800s mandated that men could buy alcohol and cigarettes only form a state store. Your instructions are very strange. If

30. ## accounting

increases in temporary capital accounts result in an increase or a decrease in owner's equity? true what are you asking? be more spacific

31. ## math

how am i supposed to find the stemplot of a 3 digit number.. like 340,590,500,630,657,320... fxcgfxc

32. ## That darn PHYSICS again

Hi! i need some help with this ASAP! a body is projected upwards from a point on level ground with a velocity of 45 m/s at an elevation of 30 degrees. Working from the expression for uniformly accelerated motion in a straight line, determine 1) the time of

33. ## math

wuts 2.5 times 70? put 2.5*70 into Google and see what you get think of it like this: 70 x 2.5 ______

34. ## english writing rules

Directions: Correct the following sentences given if needed under the rule of :Inclusive language-Making language non-sexist. (1) The directors and their wives met the stockholders for a night on the town. (2) Each advisor was contacted by his students.

35. ## English writting rule

Directions:Correcting the sentences given if needed under the rule of: Inclusive Language-Making language nonracist and nonagist.#1-5 (1)She is a very capable black woman (2)His grandmother really enjoys spending the afternoon at the center for senior

36. ## Project format

Let's say I'm doing an assignment with an appendix (in the appendix I have calculations, graphs, etc.). Should I inlude the works cited in the appendix, before, or after?

37. ## english writing rules

Direnctions : Correct the following sentence given if needed under the rule of:Inclusive-Language quoting orm biasd sources. The employee guide indicated that men could add their spouses to their health care plan. Substitute "employeees" for "men," since

38. ## math

Can you solve this probem for me 1 1/2 X 2/3 1 1/2 is the same as 3/2 so 3/2 x 2/3 = 3/3 = 1 since the 2's cancel when you multiply. 4