# Questions Asked onNovember 2, 2011

1. ## physics

A driver in a 2000 kg Porsche wishes to pass a slow moving school bus on a 4 lane road. What is the average power in watts required to accelerate the sports car from 30 m/s to 60 m/s in 9 seconds?

2. ## chemistry

Pentaborane-9(B5H9) IS a colorless highly reactive liquid that will burst into flames when exposed to oxygen.The reaction is ' 2B5H9(l)+ 12O2--> 5B2O2(s)+9H2O(l) Calculate the kilojoules of heat released per gram of the compound reacted with oxygen.The

3. ## chemistry

If im given mass percent and mass solvent how do I find mass solute and mass solution. example: Mass percent = 3.8% and Mass solvent 45.8 g. Find mass solute and mass solution

4. ## Chemistry

For the list of chemicals below, write complete, balanced equations for all possible reactions that would lead to an insoluble salt. KCl, BaCl2, AgNO3, Pb(No3)2, K2SO4, HNO3

5. ## Calculus

The curve y = x/(1 + x^2) is called a serpentine. Find an equation of the tangent line to this curve at the point(2, 0.40).(Round the slope and y-intercept to two decimal places.)

6. ## Chem

In a coffee cup calorimeter, 50.0 mL of 0.100 M AgNO3 and 50.0 mL of 0.100 M HCl are mixed to yield the following reaction: Ag+ (aq) + Cl- (aq) -----------------> AgCl (s) The two solutions were initially at 22.60 °C, and the final temperature is 23.40

7. ## algebra

Suppose you work in a clothing store. Each week you earn $250 plus a commission equal to 2.5% of your sales. This week your goal is to earn no less than$350. Write and solve an inequality to find the amount of sales you must have to reach your goal.

8. ## Physics

In a slow-pitch softball game, a 0.200 kg softball crossed the plate at 10.00 m/s at an angle of 45.0° below the horizontal. The batter hits the ball toward center field, giving it a velocity of 44.0 m/s at 30.0° above the horizontal. If the force on the

9. ## Math

An airline runs a commuter flight between Portland and Seattle, which are 145 miles apart. If the average air speed could be increased by 40 miles per hour, the travel time would be decreased by 12 minutes. What air speed is required to obtain this

10. ## chemistry-wavelengths

what is the wavelength in nm of radiation having a frequency of 2.45x10^9Hz

11. ## Chemistry

1) What is the charge on the ion that Selenium forms in an ionic compound? I am not sure about this. 2) What noble gas is isoelectronic with this ion. I was thinking Krypton because it is a noble gas and it is the closest to Selenium but I am not sure. 3)

12. ## calc

You have been hired as a marketing consultant to Johannesburg Burger Supply, Inc., and you wish to come up with a unit price for its hamburgers in order to maximize its weekly revenue. To make life as simple as possible, you assume that the demand equation

13. ## Science

a bus trip covers 191 km and takes 4 hours and 15 miniutes. What is the average speed of the bus in kilometers per hour?

14. ## GOVERNMENT USA HELP FAST

The military-industrial complex a. consists of an alliance of the military and industry that is pitted against officials in Congress and the executive branch. b. suffered a rare defeat in 2009 when funding for additional F-22 fighter jets was rejected by

15. ## chemistry

a student mixes 88.6g of water at 74.3 degree Celsius with 57.9g of water at 24.8 degree Celsius in an insulated flask.What is the final temperature of the combined water.

16. ## CALCULUS HELP ASAP! please:)

If C(x) = 15000 + 600x − 0.6x^2 + 0.004x^3 is the cost function and p(x) = 1800 − 6x is the demand function, find the production level that will maximize profit. (Hint: If the profit is maximized, then the marginal revenue equals the marginal cost.)

17. ## physics help

In this experiment you will be asked to plot a graph of mhg versus ac and fit your data to a straight line. What is the slope of the graph equal to in terms of the rotating mass MR? (Use any variable or symbol stated above as necessary.)

18. ## Chemistry

2.) Part A.2. Suppose 6 M HCl is substituted for the 3 M HCl in the procedure. What would be the consequence of this substitution?

19. ## chemistry

A sample of O2 gas is collected over water at 23C at a barometric pressure of 751 mmHg (vapor pressure of water at 23C is 21 mmHg). The partial pressure of O2 gas in the sample collected is: (a) 21 mmHg (b) 751 mm Hg (c) 0.96 atm; or (d) 1.02 atm The

20. ## Alg 1.

The local zoo keeps track of how many dragonflies are breeding in their insect exhibit each day. Day: 1, 2, 3, 4, 5 Dragonflies: 9, 18, 36, 72, 144 It's exponential growth. A. Write an equation for the function that models the data. B. Use your equation to

21. ## Chemistry

In the cchemistry lab we conducted an experiment called atomic spectroscopy. We had to find the color, energy, wavelength, and 1/lamda for Hydrogen, neon, and mercury. For hydrogen: red 1.90ev 650nm 1.54e^-3 red 2.02ev 610nm 1.64e^-3 green 2.30ev 545nm

22. ## maths

what is a dual intercept method and how is it applied?

23. ## Chem!!

Consider the dissolution of CaCl2: CaCl2(s) -----------> Ca2+(aq) + 2Cl-(aq) ΔH=-81.5 kJ/mol An 11.0 gram sample of CaCl2 is dissolved in 125 g water with both substances at 25.0 °C. Calculate the final temperature of the solution assuming the solution

24. ## Physics

Your teacher tosses a basketball. The ball gets through the hoop (lucky shot). Height of hoop= 3.048m height of person= 2.342 m the ball is thrown at 17 m/s at an angle of 46 degress Part 1: How long does it take the ball to reach its max height? Part 2:

25. ## Reasonableness

The flag that Nico waves has an odd number in the ones place and an even number in the tens place. RED flag 25- blue flag 14- yellow flag-32-green flag 6--oranges flag--17

26. ## Economics

The handmade snuffbox industry is composed of 100 identical firms, each having short – run total costs given by STC = 0.5q2 + 10q + 5 and short – run marginal costs by SMC = q + 10 where q is the output of snuffboxes per day. a) What is the short

27. ## physical science

A certain radioactive substance has a half-life of 1 hour. If you start with 1 gram of the material at noon, how much will be left at 3:00 P.M.? At 6:00 P.M.? At 10:00 P.M.?

28. ## math alg - inequality

2 word problems write an inequality for each problem. solve the ineequality. 1) the school record for the most points scored in a football season is 85. lawrence has 44 points so far this season. how many more points does he need to break the record? i

29. ## s.s

Which of the following was not an innovation that came about do to militarization in the 1800's? A. canned food and milk B. Larger farms C. Factory production of bread D. Margarine * I chose D Margarine do you agree if not what would you choose and why?

30. ## Chemistry

The sugar arabinose, C5H10O5, Molar Mass = 150.15 g/mole, was completely combusted with excess oxygen in a calorimeter. Combustion of a 0.548 g sample of arabinose caused the temperature to increase from 20.00 degrees C to 20.54 degrees C in a calorimeter

31. ## Chemistry

Chemical analysis show that hemoglobin contains 0.34 percent Fe by mass. What is the minimum possible molar mass of hemoglobin? The actual molar mass of hemoglobin is four times this minimum value. What conclusion can you draw from these data?

32. ## environmental science

Explain the main point concerning exponential growth and whether it is good or bad. Compare exponential growth to a logistic growth curve and explain how these might apply to human population growth. What promotes exponential growth? What constrains

33. ## Government US

22. The phrase that best describes the shift in America’s world position from the pre- to the post- World War II eras is a. internationalism to isolationism. b. isolationism to internationalism. c. containment to isolationism. d. interventionism to

34. ## math

when a 3- digit number is divided by 1-digit, the estimated quotient is 50. Think of two possible numbers that can give this quotient.

35. ## chemistry

A diesel engine's piston compresses 16 cm3 of fuel-air mixture into 1 cm3. The pressure changes from 1 atmosphere to 48 atmospheres. If the initial temperature of the gas was 305 K, what was the final temperature?

36. ## Further calculus

1) A price p (in dollars) and demand x for a product are related by 2x^2+6xp+50p^2=10600. If the price is increasing at a rate of 4 dollars per month when the price is 30 dollars, find the rate of change of the demand. 2) a) The price (in dollars) p and

37. ## physics

a 3.0 kg wood box slides from rest down a 30.0 degree inclined plane. How long does it take the box to reach the bottom of the 4.75 m wood incline? The coefficent of friction is 0.30.

38. ## Chemistry

1) A Cobalt (II) ion has the electron configuration ____? and is ____? The answer choices were: [Ar] 3d5 4s2 diamagnetic [Ar] 3d7 paramagnetic [Ar] 3d5 4s2 para [Ar] 3d7 dia None of these I chose [Ar] 3d5 4s2 diamagnetic 2) Choose the corect statement

39. ## Physics

A 72.0 kg skateboarder wants to just make it to the upper edge of a "quarter pipe", a track that is one-quarter of a circle with a radius of 4.65 m. What speed (in m/s) does he need at the bottom assuming that the local acceleration due to gravity is 9.80

40. ## Physics

A 2 kg steel ball strikes a wall with a speed of 8.15 m/s at an angle of 54.4◦ with the normal to the wall. It bounces off with the same speed and angle, as shown in the figure. If the ball is in contact with the wall for 0.243 s, what is the magnitude

41. ## Physics helppp

A 67.0 kg skateboarder wants to just make it to the upper edge of a "quarter pipe", a track that is one-quarter of a circle with a radius of 2.55 m. What speed (in m/s) does he need at the bottom assuming that the local acceleration due to gravity is 9.80

42. ## chemistry

Assume that you have 2.10 of the deadly gas hydrogen cyanide, . What is the volume of the gas at STP?

43. ## chemistry

If some of the CaCO3 in the sample had already formed some Ca(HCO3)2, will the volume of CO2(g) generated in the reaction be greater,less than or the same as in the experiment? Explain

44. ## ALGEBRA

can you help with these: for each inequality tell whether the number after symbol ; is a solution. x -3 ; 3 i said yes k ¡Ý 5 ; 0 i said no 3z ¡Ü 12 ; 4 i said yes n - 5 >3 ; 6 i said no 2g + 8 ¡Ý 3 ; -1 i said yes also i need to write real word

45. ## Calculus

Suppose oil spills from a ruptured tanker and spreads in a circular pattern. If the radius of the oil spill increases at a constant rate of 2m/s, how fast is the area of the spill increasing when the radius is 15m?

46. ## physics

m1 = 2.7 kg block slides on a frictionless horizontal surface and is connected on one side to a spring (k = 40 N/m) as shown in the figure above. The other side is connected to the block m2 = 3.6 kg that hangs vertically. The system starts from rest with

47. ## communication

When you acively make judgments about whether or not the message you are hearing is worthwile, you are a assessing the accuracy of the speakers conclusions b engaging in unethical listening behavior c engaging in a barrier to effective listening d engaging

48. ## biology

if offspring exhibit a 3:1 phenotype ratio, what are the genotypes of the parents?

49. ## OChem

A sample of limonene has a specific rotation of +81.5. (Given that R-(+)-limonene = +125.5 and, S-(-)-limonene = -122.1). What is the %ee? ______%ee What is the molecular composition of this same sample? S isomer = ______% R isomer = ______% This is how I

50. ## algebra

Suppose you measured the diameter of a tree trunk to be 5 cm. The actual diameter can vary by at most 0.4 cm, due to the error in measuring a non-flat surface. Write an absolute value inequality for the range of acceptable diameters and solve the

51. ## Physics

A worker pushes 25Kg crate a distance of 5m along a level floor at constant velocity by pushing horizontally on it. The coefficient of kinetic frication between the crate and the floor is 0.23. (a) What magnitude of force must the worker apply? (b) How

52. ## Physics

A 0.250 kg block on a vertical spring with a spring constant of 4.09 × 103 N/m is pushed downward, compressing the spring 0.0900 m. When released, the block leaves the spring and travels upward vertically. The acceleration of gravity is 9.81 m/s2 . How

53. ## grammar

change the boring verbs and ordinary adjectives paul was sad when the football burst

54. ## Math

Help, I can't find the pattern rule for this sequence(eg. -6,-3,2,9,18 and the pattern rule is n squared-7) The pattern: 6,28,64,114,178. What's the pattern rule? The pattern: 96,84,64,36. What's the pattern rule? The pattern: 0,24,216,960. What's the

55. ## organic chemistry

Determine the structure of the compound C7H14O based on its 13C NMR spectrum.

56. ## PHYSICS

An astronaut of mass 78.0 kg is taking a space walk to work on the International Space Station. Because of a malfunction with the booster rockets on his spacesuit, he finds himself drifting away from the station with a constant speed of 0.500 m/s. With the

57. ## CHEMISTRY

how many elements in (NH4)2SO4

58. ## physicss help!

m1 = 2.7 kg block slides on a frictionless horizontal surface and is connected on one side to a spring (k = 40 N/m) as shown in the figure above. The other side is connected to the block m2 = 3.6 kg that hangs vertically. The system starts from rest with

89. ## Algebra II

A plane is headed due west with an air speed of 212 km/h. It it driven from its course by a wind from due north blowing at 23.6 km/h. Find ground speed of the plane and the actual direction of travel.

90. ## science

In the lab you need to make 1.00 L of a 0.300 M NaCl solution. You had previously made a 0.950 M NaCl solution that you can dilute to form your new solution. How many mL of the concentrated solution would you use to make the dilute solution?

91. ## Physics

A hallway display of energy is constructed in which several people pull on a rope that lifts a block 1.15 m. The display indicates that 0.95 J of work is done. What is the mass of the block? Walk through would be great

92. ## English

I forgot to include the following examples. Thank you. 1) She risked being run over by a lorry while she was crossing the road. Macbeth is regretful but not repentant (of his sins???). 2) Can repentant be followed by a preposition? Shall I write "he

93. ## Science

What is the source of energy in fossil fuels?

outline a writing plan for a request refusal: Buffer: Reasons: Bad News: Closing:

95. ## English

Iam writing a comparison essay between katy perry fireworks and the climb by miley cyrus. I need help starting off a good introduction. Thesis statment:An analysis of he literacy devices in katy perry"fireworks" and miley cyrus"the climb" reveals Miley

96. ## World History

Which of the following did reforms first try to end in the slave industry? A.Slavery in Caribbean agriculture. B.The culture of slavery in north america. C.The trade in slaves itself. D.Liberation and compensation of slaves. * this is a review for my test

97. ## english

What would be some good questions to ask high school students about bullying? I have to make surveys and hand them out to students in classrooms.

98. ## Math

The secret number has a 7 in the ones place, The tens number is an odd number

99. ## Chem

A 0.1098 g sample of copper metal is dissolved in 34 mL of concentrated HNO3 to form Cu2+ ions and then water is added to make a total volume of 209.5 mL. (Calculate the molarity of Cu2+.)

100. ## Calculus

Answer the following questions for the function f(x) = sin^2(x/3) defined on the interval [ -9.424778, 2.356194]. Rememer that you can enter pi for \pi as part of your answer. a.) f(x) is concave down on the interval . b.) A global minimum for this

101. ## physics

Consider a 8·kg rod with a length of 0.6·m and rotating about an axis passing through its center. (a) What is its rotational inertia? (B) Suppose the rod is rotating counterclockwise and speeding up with a rotational acceleration of 7·rad/s2. What is

102. ## Science

Explain changes of state between solids and liquids and between liquids and gases?

103. ## psychology

dr. gibson has created a new energy drink which he hopes will also make a person smarter when testing his new drink what is the independent variable and what is the dependent variable?

118. ## mathematics

what is the equation for exponetial decay(radioactive decay) and how to use the half life in the equation

119. ## Chemistry

How can I calculate the energy required for the ionization of an electron from the ground state of the hydrogen atom?

120. ## Statistics

In a city with no cars of mixed color, 30% of the cars on the road are brown. Forty percent are either brown or green, and 10% are white. a.) What is the probability that a randomly selected car is green? b.) What is the probability that a randomly

121. ## Government USA-Help

The U.S. lesson learned from the Vietnam War was that a. public opinion could be ignored by leaders during wartime. b. nuclear weapons had utility in a war of insurgency. c. there were limits on America's ability to get its own way in the world. d. the

122. ## Pre-algebra

Jack runs 275 miles per day during soccer season. He has already run 25 miles this morning. He plans to run 2.5 miles each day. What is the fewest number of days he will need to reach his goal?

123. ## engineering

I need help with a Fire Science Engineering homework. A fuel has heat of combustion equal to 30 kj/g. How much energy is released when 5 kilograms are oxidized? Assuming the fuel is reacted in 10 minutes, what is the average heat release rate for the fire?

124. ## Trig

Solve 2cosxsinx + sinx = 0 using unit circle.

125. ## physics180

A satellite is in circular orbit at a height R above earth's surface. a)find orbital period. b)what height is required for a circular orbit with a period double that found in part (a)?

126. ## Health

So, what happens when a Bully picks on another bully? What'll happen to the bully that bullied another bully for bullying a young kid?

127. ## Algebra 2

(x^2 + 6x + 9)-y^2 Factor. Thanks.

128. ## Science

when you ride in a train that passes a train moving in the opposite direction, the other train appears to rush past you at a greater speed than if you were watching from a parked car at a crossing. how does the speed of your train affect your impression of

129. ## Chemistry

Calculate the molecular mass of sulphur if 35.5 g of sulphure dissolves in 1 00 g of CS2 to produce a solution that has a boiling point of 49.48 c. Thanks to ur helps.

130. ## government

why has the national government's power increased since the constitution was ratified? Explain fully.

131. ## Math

Find the future value of a $10,000 investment at 10 % annual interest compounded semiannually for 4 years. (a)$ 14,000 (b) $12,000 (c)$ 24,774.55 (d) $14,774.55 (e)$ 24,477.55 Can someone please help me find the future value? I am stuck on this

132. ## Calculus

Answer the following questions for the function f(x) = sin^2(x/3) defined on the interval [ -9.424778, 2.356194]. Rememer that you can enter pi for \pi as part of your answer. a.) f(x) is concave down on the interval . I'm really stuck on this one

133. ## s.s

With regards to the mining and agriculture industry, in the nineteenth century, which of the following statements is false? A. specialization became more common. B. Private investment grew. C. Large companies tried to be paternalistic to keep workers from

171. ## Help with math

I am stuck on a probability question. Please help and tell me the easiest way to find the answer to this.. I am confused and keep getting 5/6 A fair die is rolled..what is the probability of rolling an odd number or a number less than 3? the actual answer

172. ## Industrial Revolution Beneficial?

Why was the Industrial Revolution beneficial? And what would be a counter-argument? I need to write a persuasive essay!

173. ## Language Arts

What types of Figurative language is this? 1Emily was and oxygen-dependent mammal, a hairless ape.

174. ## chemistry ASAP

can anybody please explain nomenclature to me ? how to name? for example: Na3PO3 NH4CLO2 AuNO2

175. ## Calculus

A 20' ladder leans against a building. The bottom of the ladder is sliding away horizontally at a rate of 2 feet per second. How fast is the top of the ladder sliding down the building when it is 12' above the ground?

176. ## world history

The main goal in the Habsburg Empire in World War 1 was?

177. ## AP European History

Im supposed to do this outine on the Glorious Revolution and for the 2 part it says list and explan 3 The public policy changes that took place does that mean like William and MArys Bill of rights, and the toleration act as well as the Act of settlement im

178. ## world history

The economic success of the Mughals in India was dependent upon

179. ## AP Government

Who assigns bills the the committees? Why is this an important power to have and how can this person use this influence?

180. ## English

Is this sentence still correct though if I use "had to" instead of "must"? 1) Macbeth admits that if he had to acknowledge his deed, then it would be best for him to lose all knowledge of himself. Thank you. English - SraJMcGin, Tuesday, November

181. ## Science

Examine the obvious environmental impacts as well as significant social and physical ramifications of urban sprawl. What is the relationship between landscape and psychological well being? After defining this relationship, discuss how the presence or

182. ## English

I am writing a comparison essay between katy's perry "Fireworks" and "The Climb" by Miley Cyrus. Can somebody help me start with 2 sentences for a strong introduction

183. ## Math Challenge check

I can appreciate your honesty. However, I thought this was a blog to help people not to insult them. What may seem obvious to one person may not be to the next. Especially so for young students who come here for help with homework problems.

184. ## physics

The velocity of a 1.5 kg block sliding down a frictionless inclined plane is found to be 1.13 m/s. 1.2 s later, it has a velocity of 4.37 m/s. What is the angle of the plane with respect to the horizontal (in degrees)?

I am helping my sister with her hw. They are to write the meaning of a group of words or in that case idioms. What does BET DOLLARS TO DOUGHNUTS, and GETAROUN TO CALLING mean? Please help!!!! Thank you!!! :-)

186. ## Pre Calculas

how would you varify the following sinx+sinx cot^2x=cscx

187. ## psychology

Nisa has grown up in a small village in the foothills. There was no electricity and water had to be hand pumped. They seldom saw people from the "outside." When she entered school the bus had to pick her up at 6:30 am in order for her to arrive at school

188. ## math

if 5 friends want to share 18 ounces of chocolate equally by weight how many ounces should each friend get?write an equation show your work?

189. ## s.s

By 1900, _______ made up 25 percent of Japan's total industrial output. A. Raw silk B. Steel C. Cotton yarn D. Tea I chose Cotton Yarn because in 1900 yarn started being reconized more. I believe tea would have been alot more than just 25%.

190. ## math

Consider a 8·kg rod with a length of 0.6·m and rotating about an axis passing through its center. (a) What is its rotational inertia?

191. ## Physics

the coefficient of friction between a 78 kg box and a warehouse floor is .21. what is the friction force?

192. ## mathematical induction

solve this using the mathematical induction : 1/1(3)+1/3(5)+1/5(7)+......+1/(2n-1)(2n+1)=n/(2n+1)

193. ## statistics

The external validity of the results from a research study refers to the?

194. ## Basic Technology

The processes on how to construct a rhombus with a complete diagram on a constructed rhombus.

195. ## Science

Why is water only compound occuring naturally on earth in three states?

196. ## algEBRA

Could you recommend practice sites for inequalities using less than and greater than and word problems

197. ## Math

barry puts TVs on a 15-foot shelf in his electronics store. He allows 2 1/2 feet of space for each TV. He will be able to put 5.5 TVs on the shelf. Is this reasonable or not

198. ## science

how to calculate percent error

199. ## Social Studies-Amrican History

here is a list of individual people who helprd Aamerica gain independence from Britian... Can you add to it??? Please an Thank you. Martha Washington John Adams Charles Cornwallis Thomas Jefferson Frederick William, baron von Steuben John Jay George III

200. ## Statistics

The basketball player Steve Nash is the all-time career free throw shooter among active players. He makes about 90% of his free throws. In today's game, Nash misses his first two free throws. The TV commentator says, "Nash's technique looks out of rhythm

201. ## physics

A 350-ohm resistor is connected in series with a 270-ohm resistor. What is their equivalent resistance in ohms?

202. ## Caculus

y = 500/1+75e^-.625 x = egg mass y = number of tree (thousand) The function is show the forest defoliation1. Find the percent of forest defoliation if the egg mass are 100? (Using derivative) Thank you

203. ## research & Evaluation I

I have a car that has gone 50,000 miles, on average without a breakdown. What is the chance, in the next 5000 miles I have a breakdown?

204. ## English

Subject: Get Ready! We are hoping to be back at work soon, with everything running smoothly, same production schedule and no late projects or missed deadlines. So you need to clean out your desk, put your stuff in boxes, and clean off the walls. You can

205. ## Algebra II

Forces of 675 lb and 828 ob act on a body. The smaller force acts due north; the larger force acts N 52.3 degrees E. Find the direction and the magnitude of the resultant.

206. ## calculus

For what values of theta, on the polar curve r=theta, 0

207. ## MATH

Using the Law of Cosines for vectors, give a vector proof that if quadrilateral ABCD is a rhombus, diagonal AC bisects

208. ## science

How does soil most impact living things? A. different soils cause temperature extremes. B. different soils support different types of plants. C. different soils absorb different amounts of sunlight. D. different soils are different colors. My answer is B

209. ## math

How would you use the substitution method to answer 1/3x-2=1 x-6y=3, and what would be the solution?

210. ## math

I need help with a problem. One third of a number, decreaesd by thirty-six, is at most twenty-two. Find the number.

211. ## Spanish- SraJMcGin please recheck

I'm not sure what you meant by correcting this sentence--Thank you for any further explanation you can give-- 3. Tocar el piano es______tocar la guitarra. (+bueno) Tocar el piano es mejor que tocar la guitarra. You said in an earlier post: mejor

212. ## U.S History

Describe how the french navy helped George Washington at Yorktown. Thank's

213. ## Opinions wanted

My book flew across the room as another huge wave crashed against the ship. This was the worst vacation of my my life. My fairy warned me this wasn't the time for a trip around the world, but did I listen? NOOOO, I was convinced that there was no wrong

214. ## physics

A rope is used to pull a 2.54 kg block at constant speed 4.48 m along a horizontal floor. The force on the block from the rope is 5.87 N and directed 29.8° above the horizontal. What are (a) the work done by the rope's force, (b) the increase in thermal

215. ## Math

One canned juice drink contains 30% orange juice; another is 10% orange juice. How many liters of each should be mixed together in order to get 20L that is 28% orange juice? I want step by step help.

216. ## geometry

A picture frame is shaped as a heptagon. The measure of one angle is 126°. The remaining interior angles are congruent. What is the measure of each remaining interior angle in the picture frame?

217. ## math

What is tan(arccos3/4)

218. ## Chemistry

15 mL of 60oC water is mixed with 10 mL of 0oC water in a perfect calorimeter. What is the final temperature?

A baseball player hits a foul ball into the stands. He wants to know where the ball would've landed if the stands had not been there. The points they give you are: The y-intercept (0,1), (2,2.5) and (134,18). I'm pretty sure you are looking for the zeroes.

220. ## english

Some people say that victims of bullying eventually become the bullies. Why do you think this happens?

I have to write a business letter, a memo and an e-mail on one document regarding human resources administrative assistant organizing seminar on sexual harrassment.

222. ## math

come si fanno le frazioni di un numero

223. ## Math C30

Last Question disregard .. ooops Solving Equations Containing Circular Functions .. Solve 2cos^2x=1

224. ## Algebra-Graphing

I need to find the vertex, axis of symmetry, and if the graph will open upward or downword f(x)=-3x^2-5

225. ## Algebra 2

x^4n - y^6n+2. Factor. Thanks.

226. ## Science

Plural Noun That Change Spelling .Write the plural noun for each singular noun. Wolf man tooth

227. ## Computer science

THIS IS C PROGRAMMING I NEED TO CREATE A METHOD! Create a method areaOfaTrapeziod when given a, b, and h (all doubles), will return the area (double) of a trapezoid. Use the equation pictured below. THANKS IN ADVANCE :)

228. ## English

I have to write a Haiku with has to do with Science, please let me know if this is good. Science is great fun you get to use chemicals, but safety is first. Thank you.

229. ## Algebra

Write the slope-intercept equation for the line that passes through (-3,-15)and is perpendicular to -6x+8y=3

230. ## social studies

how to find the mummification process.

231. ## s.s

Which of the following was the only african state that increased in size and power in the 1800's? A. South Africa B. Zimbabwe C. Ethiopia D. Sumatra * I chose B Zimbabwe do you agree or disagree if this is wrong in your mind what would you have chosen and

232. ## Algebra

Solve the equation 5x+7=13-7x graphically. then check your solution algebraically.

233. ## world history

Ignatius Loyola was a

234. ## English

I forgot to add two doubts. Thank you very much. 1) Macbeth regrets having killed Duncan but doesn't repent of his sin. As a matter of fact, the word Amen stuck in his throat. 2)Do you say "clean his hands of the burden of the guilt which weighs on his

235. ## psychology

I need help to Compare and contrast Humanistic and Existential therapies.

236. ## math

using these digits 1,9,3,6 Whatis the least 2-digit you can make? What is the greatest 2-digit you can make?

237. ## global healh and nursing

how and why do nurses use the epidemiology methods and data?

238. ## math

Howard leaves the dock and sails 2.5miles west He turns south and sails 3.5 Then he turns east and sails 2.5 miles In what direction should howard turn if he wants to use the most direct route to return to the dock ? If Howard use this route ,how many

326. ## Math

The annual interest rate on an investment is 8%. What is the quarterly rate? (a) 1% (b)12% (c) 16% (d)2% (e)3% Can someone help me figure out the formula for finding out the quarterly rate?

collect like terms 3a+2a^2+a-a^2

328. ## government

How does the supremacy clause make federalism work? Discuss.

330. ## science

Observe one hour in a classroom (preschool, pre-kindergarten, kindergarten

331. ## social studies

between 1400000 and 500000 years ago early hominids learned how to?

332. ## English

I have to write a Haiku related to science, not sure what I need to do. Please help.

333. ## geometry

find the measures of the interior angles.. (triangle) 110-x , 3x-10, 2x write equation too .

334. ## calculus

find the intervals on which the function is increasing, decreasing, or constant. (-7,2)(-6,2)(-5,2)(-4,2)(-3,2)(-2,2)(-1,2)(1,3)(3,4)(5,5)

335. ## statistics

Out of a group of 100 US residents, how many would you expect to have travelled no more than 386.9 miles in any given year?

336. ## probability and statistics

Out of a group of 100 US residents, how many would you expect to have travelled no more than 386.9 miles in any given year?

: Sharing learning through narrative communication

338. ## math

what are triangular number's

339. ## Math

What does it mean to maesure and compaer inches to the foot?

340. ## English

I just wanted you to clarify a few doubts. You have already checked the first sentence. I just wanted to know if the use of the present is correct. 1) He imagines that even all the water from Neptune's ocean could not wash away the burden of guilt that

There are 7oz of suger in a suger 16oz box of honey.What percent of honey is suger? Round to the nearest percent.

342. ## English

I urgently need you to check these sentences. I included my doubts in parentheses. Thank you. 1) The bride, as red as a rose, has entered into (?) the hall (OR the hall /without into) 2) The ice split as (?) the sound of thunder and the helmsman steered