# Questions Asked onMay 22, 2009

1. ## physics torque and shelf

When a wood shelf of mass 6.1 kg is fastened inside a slot in a vertical support, the support exerts a torque on the shelf. The board is 32cm wide by 3cm tall. the slot is 2 cm wide (3cm tall)on the lefthand side. So there are three vertical forces. A)

2. ## Physical Science

1.Nico uses wire to connect a battery, light bulb, and a switch, but the light bulb doesn't light up. What might explain this problem? A.The circuit is closed B.The wires are bent C.The battery has too much power D.The switch is open. B? 2.What type of

3. ## physics loop

The small mass m sliding without friction along the looped track is to remain on the track at all times, even at the very top of the loop of radius r. (not unlike a roller coaster) A)In terms of the given quantities, determine the minimum release height h.

4. ## hca230 >> Sara

I've removed your complex final project post for several reasons. First, we don't have access to Appendix A. Second, you've given us no indication of what you've done nor how you want us to HELP you. Since this is your final project for this class, you

5. ## physics incline

A cord connected at one end to a block which can slide on an inclined plane (incline 27 degrees) has its other end wrapped around a cylinder resting in a depression at the top of the plane (and the other angle at bottom is not a right angle, but 58

6. ## science

If the inner core reaches temperatures exceeding 6000c, in what phase/state of matter would these matters exist? A. gas; the temperature is so great that the atoms vaporize B. solid; the pressure is so great that the atoms are forced together C. liquid;

7. ## Social Studies

11) - What type of political system is headed by Queen Elizabeth II of England? A) dictatorship B) oligarchy C) pure democracy D) monarchy

8. ## scince

Fill in the blank Minerals is a naturally occuring, inorganic, crystalline solid, having a defintie chemical composition. Minerals are composed of one or more chemical eleents. Example: NaCl => __________=> salt plz help me.

9. ## physics

The scale of a spring balance reading from 0 to 250N has a length of 10.0 cm. A fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.85 Hz. Ignoring the mass of the spring, what is the mass m of the fish? (and why the heck

10. ## objective and eyepiece lens

What is the approximate magnification of a compound microscope with objective and eyepiece focal lengths of 0.3 cm and 3.6 cm, respectively, and a separation between lenses of 20 cm? The answer is 460. I tried finding the magnification for the eyepiece

11. ## French #2

Can someone check over my short paragraph thing please? Voici mon poster. C'est importante pour moi parceque il (reminds) moi de mon livre favorite dans (grade 5). Je (got it as a prize) de la chance de draw). Heres the english: This is my poster. It is

12. ## spanish

"Cuando era niño, ¿con qué juguetes jugabas?" "_____" a. con un sube y baja, una guardería infantil y una pistola de agua b. con un dinosaurio de peluche, un columpio y una cuerda. c. con un pajaron, un patio de recreo y un muñeco d. con un robot,

13. ## spanish

"Cuando cantaban en el corro, ¿cuantos años tenían Uds.?" "_____ doce años." a. tenemos b. tienen c. tenían d. teníamos When you sang in chorus, how old were you (you-formal)? _____ 12 years old. I was (formal) i'm not sure which one it is in spanish

14. ## English

I was given a thesis for my paper: Character motivation withing various works of literature prove that only blindness can provide peace in society. There are selected novels I must use for quotes. But what I don't understand is Character motivation. Could

15. ## spanish

"Cuando tenías ocho años, ¿te portabas bien en la escuela?" "No, era muy travieso. Nunca _____ a la profesora." a. desobedecía b. obedecía c. me portaba mal d. me peleaba B?

Examine several newspapers and magazines and describe at least three examples of functions that appear. What is the domain and range of each function? can someone give me some websites to look at.

17. ## Physical Science

Need help with these questions: 1.When a calcium atom forms an ion, it loses two electrons. What is the electrical charge of the calcium ion? A.-2 B.-1 C.+2 D.+1 2.Which particle builds a static electrical charge when it is transferred from one object to

18. ## SCIENCE

THE STUDY OF CHARACTERISTICS FROM ONE ORGANISM TO ITS OFFSPRING IS WHAT?

19. ## science

what three vitamins and minerals undergo the greatest percentage of increase during pregnancy

20. ## General

Is it illegal for a school to not have a subsitute teacher assigned to a class when the teacher is not going to be in for the day and students just show up to class and no teacher apears for the whole class? Is that legal?

21. ## social Studies

i am doing a report on jane goodall and i ran out of thinges to write. can you help me?

Pete's Plymouth travels 200 miles at a certain speed. If the car had gone 10 mph faster, the trip would have taken 1 hour less. Find Pete's speed. I am very confused about how to solve this problem! Please explain well. Thank you so much!!! :-)

23. ## IT >> Becky

I've removed your complex post since it assumes the Jiskha Homework Forum volunteers knowledgable about your specific text and your Collaborative discussion clusters. We have no connection with any school and no way of accessing any school's private

24. ## Physical Science

Need help- 1.Eva is in a closed dark room. She uses her arm muscles to turn on a lamp. When she moves her hand closer to the lamp, the light heats her hand. The light bounces off the pages of a book and into her eyes. If this room is a closed system, what

25. ## Physical Science

Is this correct? Gabriella weighs 450 N. She climbs a flight of stairs to a height of 3 m. It takes her 5 seconds. How much work does Gabriella do when she climbs the stairs? Ans- 1,350 J. What I did was 450*3 Can someone check this? Thanks -MC

26. ## spanish

what does this question and answers mean? "Que hicieron tu y tus sobrinos cuando llegaron a tu fiesta de sorpresa?" " _____, por supuesto." a. nos despedimos b. nos invitaron c. se regalaron d. nos abrazamos (sorry for the missing accent marks)

27. ## Microeconomics

What is the relationship between average and marginal productivity?

28. ## chemistry (urgent)

List six pieces of evidence for the existence of water on Mars, with a full reference to the source for each piece of evidence

29. ## 7th grade Life Science

Which of the following structures does not provide support for invertebrae bodies? a)backbone b)tiny glass structures c)skin d)exoskeleton

30. ## 7th Grade Life Science

Which of the following is a hard covering that protects an anthropod? a)exoskeleton b)endoskeleton c)mantle d)segment

31. ## looking for college scholarships

I am a junior in high school and I am in the process of trying to find scholarships that I can apply for right now at the moment. I am trying to start early as I can. Thanks!! If you can help me find scholarships and or grants. But i say absolutely no

32. ## Microeconomics

How do changes in average and marginal productivity affaect the cost of production?

33. ## Microeconomics

Is a technology that replaced workers worth developing? After all, it eliminates the need for human workforce?

34. ## epid

b. What kind of birth rates are plotted in Figure 2 (page 9)?

35. ## BSA375

How does organization culture play a role in the successful reliance on the JAD

36. ## physics

1.A spherical bowl(R = 20 cm) contains water(n = 1.33) and your pet gold fish who, is swimming 15 cm from the centre of the bowl. You however are 35.0 cm from the edge of the bowl-outside, of course. Describe the image your fish sees. 2.The hydrogen atom

37. ## physics

The hydrogen atom consists of a proton with an electron in orbit about the proton. The laws of quantum mechanics determine that the radius of this orbit is 5.29x10^-11 meters. Therefore, calculate a) The electric potential the electron experiences. b) The

38. ## math

How do u find the lcm v^3+4v^+4v, v^2-4z the lcm is ___(__)^2 (v-___)

39. ## pronoun case

Which is proper english and why? 20a. My best friend and I are going to Hawaii this summer. 20b. My best friend and me are going to Hawaii this summer.

40. ## research writing

Create a full sentence outline that includes effective argument and counterarguments to support my thesis on Teen Depression and Suicide. Where did you place the most effective arguments in your paper? Explain How did you address counterarguments without

41. ## economics cost analysis

The XYZ corporation is planning to purchase an extruder at a purchase price of \$350,000. XYZ plans to make down payment of 25% of the first cost of the extruder and to make a 7 year,10% yearly payment loan for the rest of the first cost of the extruder.

42. ## chemistry mass spectroscopy

hi. i couldn't answer one of my thought questions to help me prepare for test: given a mass spectrogram, how can i tell if lets say, chlorine, is present or not? what will i be looking for?

43. ## social

what was dante's role?

44. ## science

what elements are likely to be formed by the sun at some time in its life?

10/12+4/9

46. ## French

Can someone please check my work? I have to write 15 sentences. 8 present tense and 7 past tense (passé composé) **1. J'ai apporté un nouveau le livre. 2. Le garçon est très amusant. **3. Ils sont allé a la bibliotheque après l'école. 4. La fille a

How do u do (3x)cubed

48. ## science -- urgent

can you pleaseee list all the things that Earth needs to provide us with life?? like energy, carbon, and so on.. THANKS A LOT!

49. ## spanish

Cuando era niño, mi dormitorio siempre estaba desordenado porque yo nunca lo _____. a. arreglo b. arreglaba c. arreglé d. arreglando When I was a boy, my bedroom was always messy because I never _____. i'm not sure what the answer choices mean i think