1. physics

Identify the area of physics that is most relevant to each of the following situations. Explain your reasoning. a. a high school football game b. food preperation for the prom c. playing in the school band d. lightning in a thunderstorm e. wearing a pair

2. microeconomics

I am having a problem with one of my homework questions and would like some help if possible...here is the question.. According to an article in the New York Times (Nov. 5, 1993),"many Midwest wheat farmers oppose the NAFTA free trade agreement asmuch as

3. Math

A goblin miner earns 1 cent the first day, 2 cents the second day, 4 cents the third day, 8 cents the fourth day. How much will the miner earn in 30 days? Ok--I know to double the answer each time until 30--which would be:5,368,709.12 Is there an equation

4. Calculus

I need to find the exact solutions on the interval [0,2pi) for: 2sin^2(x/2) - 3sin(x/2) + 1 = 0 I would start: (2sin(x/2)-1)(sin(x/2)-1) = 0 sin(x/2)=1/2 and sin(x/2)=1 what's next? Ok, what angle has a sin equal to say 1/2 sin (x/2)=1 arc sin (1) = x/2

5. Geometry

I need help on these two. Consider tirangles ABC and DEF. Side A is congruent to side F. Angle A is congruent to angle F. Angle B is congruent to angle E. What postulate or theorem can be used to prove that the two triangles are congruent? If angle1 and

6. speed of light

Can the speed of light be legislated? Explain your reasoning. As best as we know, the speed of light is a fundamental constant of the universe. I have no idea of the meaning "legislated". Someday they may pass laws and light will have to slow down. After

7. math

the total amount of interest on this loan of \$6000 for 150 days is \$210.50. what is the rate of interest on this loan? If not compounded, or simple interest, then Interest=Principal(rateinterest)*time Here time is 5/12 of a year, you are given the interest

8. Angle question

Quadrilateral JKLM is a rhombus. If mangleLMK = 36, find mangleKJM In the right triangle ABC, mangleB = 90, AB = 5, and AC= 12. Find BC. Round to the nearest tenth, if necessary. Help? Is AB a side and AC a side? I can't tell from your description which

9. Science

Two masses of 20 and 10 kg are moving in the same direction and one directly behind the other. The 20-kg mass is behind and moving at 10m/s and the other is moving at 5m/s. The masses collide and after the collison, the 20kg mass moves at 6m/s find the

10. Calculus

I need to find the exact solution to: 2sin2x = sqrt(x)on the interval (0,pi) This is how I started it, but I don't think it's correct. sin2x = sqrt(x)/2 2sinxcosx = sqrt(x)/2 sinxcosx = sqrt(x)/4 What do I need to do now? need to find the exact solution

11. Science

1.How is science & society related? i have no idea what the answer to this question is 2. What is a scientist's usual next step if data supports a hypothesis? can you tell me if i'm right?... i think that they either published or the experiment is

12. making dot arrays

I have a question on math homework that asks : What do we call the numbers that cannot be arranged into 2-row arrays? Ginner: I looked up contemporary numbers in several math dictionaries, and none of them listed that term. I looked at her paper - there is

What is the length of a diagonal of a square with sides 16 ft long? Round to the nearest tenth. & The length of the hypotenuse of an usosceles right traingle is 30 meters. Find the area of the triangle. Round to the nearest tenth, if necessary. Any help?

14. algebra

State the property that is illustrated. 9(1)= 9 Is this closure for x or indentity for x or something else? Your exact answer is at the following site: http://www.321know.com/pro74bx2.htm

15. Physics

On a mass of 100 kg, a force of 120 N acts right and at an angle of 30 degrees to the horizontal. If the coefficient of sliding friction is .1 what is the acceleration of the mass? Net force= mass*acceleration Horizontal force -frictionalforce =

16. help!

Diversity in populations of organisms is chiefly the result of??? Diversity in populations is chiefly the result of differing genetics. Differing genotypes have differing rates of reproduction and survival due to environmetal selective factors that favor

17. Calculus

Please help me simplify this: y = x/(4-sqrt(16+x)) Rationalize the denominator. Multiply by the conjugate, or (4+sqrt (16+x)) to the numerator, and the denominator. This should simplify it.

18. Math Symbols

Let "p" represent 'the area of rectangle ABCD is 50 square inches'. Let "q" represent 'the perimeter of rectangle ABCD is 30 inches'. Let "r" represent "the length of rectangle ABCD is twice the width" My question: use symbols to represent the collowing

19. opinion

How can American companies make the workplace environment safe and efficient without treating employees like suspected criminals? It depends on what type of companies and what type of jobs you are considering. I don't know why making an environment "safe

20. opinion

In your opinion, is having a job - any job- better than having no job at all? I suppose this depends upon what you mean by "better." In my opinion, any job is better than no job at all. I have seen this first hand. No job at all, especially for extended

21. Coriolis effect

Does anyone wish to discuss the Coriolis effect/force? Mike http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/fw/crls.rxml The thing I find teasing about the coriolis effect is that the faster the wind or an object is travelling the greater the deflection. Take

22. Math

What do we call the numbers that cannot be arranged into 2-row arrays? The question begs for amplification. An array usually contains a set of some sort. There is not a hint in your question of what the set is. My math homework question asks - exactly as

23. science

what the characteristics of all living things but explaining? GBRHT UKE5SHYKU3I7LNXKUGH Your question is unclear. However, I searched Google under the key words "life characteristics" to get these possible sources:

24. science

Using Dimensional analysis, how do you set up a problem to find the density when given mass and volume? Suppose the mass of an object is 40 grams and the volume is 20 mL. Density has units of grams/mL. Then density = 40 g/20 mL = 2 g/mL. If this isn't

25. English

Complete the paragraph: I was walking happily in my favourite park, enjoying the weather, but suddenly...... It seems as if this assignment is designed to make you use your imagination — not to use our imagination. It is very much like the Rorschach ink

26. english check

Can some one please check and see if rewrote this sentences correct. Punctuation within Sentences—Colon 1. The book had some nice features, such as a hard-bound cover, a ribbon for a bookmark and the author’s signature. 2. German grammar is simple: in

27. Science

What is science when it is applied? Science that is applied has several names: Applied Science Technology Engineering Construction

28. opinion

Do you think having a job - any job- is better than having no job at all? Why? double post?

29. Math ?

I started a new math class today and I'm stuck on a problem from my worksheet. I need help with these questions. If the measure of an exterior angle drawn at vertex M of triangle LMN is x, then mangleL + mangleN is what? What is the area of a circle with

30. matter

What are the three properties of matter and how is matter measured? volume, weight, and mass the solid has a mass of 180g. what is the density of the solid What would the density be of a solid, if I had a mass of 180g?

31. social studies

who designed the Great seal of the virgin island Thank you for using the Jiskha Homework Help Forum. Here is information on the VIPD (Virgin Islands Police Department): The Great Seal of the VIPD Seal The Virgin Islands Police Department established an

32. math

3x-6 2x-30 = 2x+12 ______ - _______ _______ x-3 3x-9 x-3 sx= (24) I have the anwser but I just cant figure out how to do it. I hava a huge exam in October yet this is not evan a quarter of what I have to learn. Im teaching myself I really suck at this if

33. ETH

What are the most significant similarities between the Chinese American and Japanese American [cultural] experiences? What are the differences These encyclopedia articles discuss the cultural experiences of Japanese- and Chinese-Americans.

34. Science

HELP! I need to do a science project this year and have no clue what to do. The project has to follow the scientific method. Please give me some good ideas! I don't care what subject, as long as they're scientific. Thanks

35. Math

What do we call the numbers that cannot be arranged into 2-row arrays?