# Questions Asked onOctober 18, 2012

1. ## MATH

an unfair coin with pr[tails]= .15 is flipped 6 times. what is the probability of getting EXACTLY 1 tail in the 6 flips?

4. What is the distance between Nicholas’s school(3,2)and the post office (-2,-2)? 6.4 5.2 3.6 3.0 5. If Nicholas is located at (– 3 , 2), what is the distance to get to the grocery store (1,-1)? 2 3 4 5 I have no idea how to solve these i have tried

3. ## Physics: Rotational Motion

A 0.005kg bullet travelling horizontally with a speed of 1000m/s enters an 18kg door, embedding itself 10cm from the side opposite the hinges as in figure. The 1m wide door is free to swing on the hinges. a) Before it hits the door, does the bullet have

4. ## physics

A 0.395-kg blue bead slides on a frictionless, curved wire, starting from rest at point in the figure below, where h = 1.50 m. At point , the blue bead collides elastically with a 0.650-kg green bead at rest. Find the maximum height the green bead rises as

5. ## AP CHEMISTRY!!!!

Carbon monoxide reacts with oxygen to form carbon dioxide by the following reaction: 2 CO(g) + O2(g) → 2 CO2(g) ∆H for this reaction is −566 kJ/mol rxn. What is the ∆H for CO(g)?

6. ## ap chemistry

Carbon monoxide reacts with oxygen to form carbon dioxide by the following reaction: 2CO2 + O2 yields 2CO2 Delta H for this reaction is -566 kJ/mol run. What is the delta H for CO? 1). +270 kJ/mol 2). -110 kJ/mol 3). +65 kJ/mol 4). -405 kJ/mol 5). -65

7. ## Grammar

Which of the following combines the sentences below by coordinating? Senate pages may be between fourteen and seventeen years old. Pages in the House must be high school juniors or seniors. A.Senate pages may be between fourteen and seventeen years old,

1. What enabled people of northern Italy to sponsor learning? (1 point) Martin Luther's ideas a mild climate wealth from trade help from the Germany government 2. What did German leaders want during the Reformation? (1 point) to increase the pope's power

9. ## Physics

A 0.17 kg baseball moving at +20.80 m/s is slowed to a stop by a catcher who exerts a constant force of -376 N. How long does it take this force to stop the ball? How far does the ball travel before stopping?

10. ## ap chemistry

Carbon monoxide reacts with oxygen to form carbon dioxide by the following reaction: 2CO + O2 yields 2CO2 Delta H for this reaction is -135.28 kcal. If 811.7 kcal is released, how many moles of CO must have reacted? 1). 270.5 mol 2). 40.5 mol 3). 12.0 mol

11. ## physics

Between each pair of vertebrae in the spinal column is a cylindrical disc of cartilage. Typically, this disc has a radius of about 2.85 10-2 m and a thickness of about 7.14 10-3 m. The shear modulus of cartilage is 1.16 107 N/m2. Suppose that a shearing

12. ## math

sally and susan had an equal amount of oney each. after sally spent $15 and susan spent$24, the ratio of sally's money to susan's money was 4:3. how much money did each girl have at first?

13. ## Physics

Two blocks move along a linear path on a nearly frictionless air track. One block, of mass 0.107 kg, initially moves to the right at a speed of 4.70 m/s, while the second block, of mass 0.214 kg, is initially to the left of the first block and moving to

14. ## Chem Electron Config

S2- Cu+ Sn2+ O2- A 1s22s22p63s23p63d10 B. 2s2 C. 1s22s22p63s23p4 D. 1s22s22p63s23p63d104s1 E. 1s2 F. 1s22s22p63s23p64s23d104p65s24d10 G. 1s22s22p63s23p64s23d104p64d105s25p2 H. 1s22s22p4 I. 1s22s22p6 J. none of the above Choose from the list the correct

15. ## physics

A semi-trailer is coasting downhill along a mountain highway when its brakes fail. The driver pulls onto a runaway truck ramp that is inclined at an angle of 17.0° above the horizontal. The semi-trailer coasts to a stop after traveling 110 m along the

16. ## sociology

the creation of a minority group status largeley depends on what?

17. ## Social Studies 8R - help!

there are 10 students in Mr. Alvarez's art class. Throughout the year, each student must pair up with every other student to complete a project. How many projects will be completed? 45?

asked by rawr... im a dinosaur.... rawr
19. ## Accounting

A check returned by a bank because the issuer's cash account balance could not cover the check is called a(n): a. Cancelled check b. Certified check c. Outstanding check d. NSF check

20. ## math

which is greater, 100^10 or 10^100? explain reasoning.

21. ## organic chemistry

The Rf value of compound A is 0.34 when developed in hexane and 0.44 when developed in diethyl ether. Compound B has Rf Value of 0.42 in hexane and 0.60 in diethyl ether. Which solvent will be better for separating a mixture of compound A and B?

22. ## Science-math

The equation for the decomposition of silver oxide is 2(Ag2)o yields 4Ag +o2. Set up ratio to calculate the number of oxygen molecules released when 1 gram of silver oxide is broken down. There are 2.6 x 10 to 21 power molecules in 1 gram of silver oxide.

23. ## physics

A skier starts from rest at the top of a hill. The skier coasts down the hill and up a second hill, as the drawing illustrates. The crest of the second hill is circular, with a radius of 38.1 m. Neglect friction and air resistance. What must be the height

Derek wrote 8,9,12 and 15 on the black board. Which pairs of theses numbers are relatively prime? my answer is 8,and 9. and 8,15. am i right if not please tell me the answers.

25. ## Chem

Balance the chemical equation for the important industrial process: C2H4 + O2 + HCl → C2H4Cl2 + H2O. Given 610.0 kg of hydrochloric acid, calculate how many kg of C2H4Cl2 can be produced.

26. ## Chem Electron Config

A 10.0-g sample of C2H5OH is burned completely in air. How many molecules of H2O are formed? 3.92×1023 *How many grams are formed?* did anyone figure out how to get the grams of H2O formed?

27. ## literature

When Mathilde finds herself in debt, she becomes heroic. How? In the story The Necklace .

28. ## CHEMISTRY

What element is represented by this electron ground state configuration : [Kr] 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d2 7s2 Is this really Krypton?

29. ## PHYSICS !!!!!!!!!!

A biophysicist grabs the ends of a DNA strand with optical tweezers and stretches it 28um . How much energy is stored in the stretched molecule if its spring constant is 0.046pN ?

30. ## Physics

Calculate a space shuttle territory 250 km above Earth's surface. Earth's mass is 6.0 * 10^24kg and its radius is 6.38 * 10^6 m (6380km)

31. ## math

Simplify the following expression in your notebook. Select the correct answer. 7 - 3[(n3 + 8n) ÷ (-n) + 9n2]

32. ## CHEM

Arrange the following in order of increasing atomic radii from smallest to largest. Mg Ra Sr Be Ca Ba

33. ## algebra 2

4p + 2q = 8 and q = 2p +1 solve by substitution

34. ## PHYSICS need help now!!!

You have a summer job at your university’s zoology department, where you’ll be working with an animal behavior expert. She’s assigned you to study videos of different animals leaping into the air. Your task is to compare their power outputs as they

35. ## physics

A car initially traveling eastward turns north by traveling in a circular path at uniform speed as in the figure. The length of the arc ABC is 259 m, and the car completes the turn in 38.0 s. a)Determine the car's speed.m/s b)What is the magnitude and

36. ## CHEM

Silicon carbide, commonly known as carborundum, is a very hard and abrasive substance. The compound is prepared by heating silicon dioxide in the presence of graphitic carbon: SiO2(s) + 2C(s) --> SiC(s) + CO2(g) How many grams of silicon carbide can be

37. ## chemistry

Explain how mixing red paint and white paint could be used as an analogy for a neutralization reaction.

132. ## social studies

How many lakes does the National Trust in England have? It's hard to find the information about that on the Internet. About 136 lakes or 500 lakes? Would you let me know that or the website? Thank you.

133. ## geometry

describe in detail two ways you could find the height of the tree indirectly. explain your methods give specific measurments you make directly show how you can use these measurements to find the objects height

134. ## math

The maker of a candy that comes in the color Blue, Red, White, Green, Pink and Tan. The proportion for Blue is 0.2, Red is 0.3, White is 0.1, Green is 0.2, Pink is 0.1 and Tan is 0.1. A single candy is drawn at random. Find the probability that a candy has

135. ## math

chester builds and collects models of boats and planes. He has 22 models altogether. Chester has 8 more planes than he does boats. How many of each kind of model does he have?

136. ## Science

Can a barge carry a heavier load without sinking in fresh water or salt water

137. ## math

an object is 18 x 23 inches. how many square inches is that?

138. ## lens surface

A spherical generator is used to produce a -15.00D surface on glass of refractive index 1.80. The diameter of the cutting tool is 80mm and the radius of the cutting surface is 4mm. What is the angle between the axis of the tool and the axis of the lens? Do

139. ## Math

In triangle XYZ, |XY|= 8 cm and |YZ|=6m. The area of triangle XYZ is 12cm^2. The |

140. ## Algebra 2

(20-r)^(1/2)= r

141. ## literature

What story has the most descriptive imagery? The Necklace or The Vendetta by Guy de maupassant. Why?

142. ## Physics

You are testing a new car in a wind-tunnel for road and wind resistance. At speed of 90.0 km/h you have found that 74.0 % of the total output power of an automobile engine is used in overcoming the resistance of the road and wind against the movement of

143. ## Physics

A 0.135 kg ball is thrown straight up from 1.94m above the ground. Its initial vertical speed is 5.60 m/s. A short time later, it hits the ground. Calculate the total work done by the force of gravity during that time.

144. ## math

belinda measured the length of a board. it measured exactly 9 inches. then she cut the board in half. to the nearest inch, how long was each piece of board

145. ## American National Government

Several controversial Supreme Court cases have come out of GITMO. One fundamental question that has been debated, but not clearly resolved, is to what extent the war on terror justifies the President's indefinite detention of "enemy combatants" without the

an unfair coin with pr[tails]= .15 is flipped 6 times. what is the probability of getting AT LEAST 1 tail in the 6 flips?

147. ## math

John has traveled from a distant planet to spend one earth year visiting with us. However, one year on earth is not the same as one year on john's planet. on john's planet: 10 seconds = 1 minute 10 minutes = 1 hour 10 hours = 1 day 10 days = 1 week 10

148. ## math

eric counted 45 finger to play kick ball How many hands went up?

149. ## geometry

the vertices of a triangle are p(2,8, q(-8,-7)and r(5,-6). name the vertices of the image refected in the x-axis?

150. ## Shakespeare's Definitions

What is shakespears definition of: love, comedy, confusion, and marriage based on a midsummer nights dream? Im stuck! I also need to provide examples from the play

228. ## mathe

wie viele menschen sind in den letzten 500.000 jahren dazugekommen

229. ## math

2 1 - = (xt3)= - (x-5) 5 2

230. ## math

2 1 - = (xt3)= - (x-5) 5 2

231. ## sfdsgfdsgg

2 1 - = (xt3)= (x-5) 5 2

232. ## American History

Did the Taft-Hartley act of 1947 strengthen the Wagner Act? I'm not really sure, but I thiiiiiiink it did.

233. ## Math

Use the elimination method to solve a+6b=14 and a+3b=5

234. ## Algebra I

How do you write an equation for the linear function shown in the table? X f(x) -3 8 3 4 6 2 9 0 Please help and explain how to do this. Thank you :)

235. ## chemistry

neon gas is cooled and volume goes from 380L to 250ml and the final temperature is -55 Celsius what is the original temperature??

236. ## gr 9 math

3=3 ..-(P-1) 4

237. ## Calculus

(x) = x ^3 - 12 x + 11, write the equation of the line tangent to the curve at x = 1

238. ## Algebra 2

Is a sequence a function?

239. ## chemiswtry

in a lab there is a spill of 47.5ml of .500 mol/l NaOH how many grams of Sulfuric acid is needed to neutralizethe spill

240. ## math

Jenifers flower bed is in the shape of a right angle triangle. The shortest side is one/forth of the second shortest side. if the area is 18sqaured what are the lengths of ALL THREE SIDES? I NEED A ANSWER ASAP! PLEASE

9x-8=4x+87

253. ## math

2 - = (xt3) 5 its one qustionput it together 1 = - (x-5) 2

254. ## Math

Middletown to star city is 232 miles. Middletown to Rileyville is 136 miles in the same direction. About how far is it Rileyville to Star city to the nearest hundred? How much difference is there between your estimate and the exact number of miles?

1y-2(y-6)