# Questions Asked onOctober 7, 2012

1. ## Statistic

Mamma Temte bakes six pies a day that cost $2 each to produce. On 15% of the days, she sells only two pies. On 27% of the days, she sells 4 pies, and on the remaining 58% of the days, she sells all six pies. If Mamma Temte sells her pies for$4 each, what

2. ## Physics

A billiard ball strikes and rebounds from the cushion of a pool table perpendicularly. The mass of the ball is 0.38 kg. The ball approaches the cushion with a velocity of +2.10 m/s and rebounds with a velocity of -2.00 m/s. The ball remains in contact with

3. ## Physics

A car accelerates for 5 seconds at 2.1 m/s^2. If the car initially had a speed of 10 m/s, what is the new speed?

4. ## Chemistry

Which of the following molecules has the highest boiling point? CH4,BH3,NH3, SH2?

5. ## Maths

There are 175 pupils in a hall. 40% of them are boys. 25 girls enter the hall. What percentage of the pupils in the hall now are boys?

6. ## math

what is 18.75 rounded to the nearest tenth?

32. ## Chemistry

2KClO3 ----> 2KCl + 3O2 Calculate the number of grams of KClO3 decomposed given an initial sample mass of 2.16g and a residue mass of 1.71g?

33. ## PHYSICS

At a drag race, a jet car travels 1/4 mile in 5.2 seconds. What is the final speed of the car and its acceleration?

34. ## Physics

Whats the difference between uniform acceleration graph and a constant acceleration graph? Both graphs look the same and I can differentiate them...

35. ## Physics

1. What is absolute uncertainty? (+one example) 2. What is relative uncertainty? (+one example)

36. ## calculus =)

find the derivative of g(x)=sin(cos(sin(pi*x)))

37. ## chemistry

Predict the boiling point of the following compound using Trouton's Rule: Heat of vaporization/Tb= 80 J/K Carbon tetrachloride (CCl4) = ?? degrees Celsius

38. ## physics

A car is driven 215 km west and then 85 km southwest. What is the displacement of the car from the point of origin magnitude and direction draw a diagram.? I kinda understand how to do this but in order to solve this you need to get a 45 degree angle and i

39. ## chemistry

calculate the mass of sodium hydroxide needed to prepare 100 ml of a .10 m solution

40. ## physics

A cart is propelled over an xy plane with acceleration components ax = 5.1 m/s2 and ay = -2.9 m/s2. Its initial velocity has components v0x = 8.2 m/s and v0y = 11.2 m/s. In unit-vector notation, what is the velocity of the cart when it reaches its greatest

41. ## Chemistry

1. How many moles of Al(CN)3 are in 199 g of the compound? 2. 96.0 mol of P4O10 contains how many moles of P? 3. If 4.71 moles of C5H12 reacts with excess O2, how many moles of CO2 will be produced in the following combustion reaction? C5H12+8O2 ->

42. ## Physics

A ball is dropped from the top of a 49.0 -high cliff. At the same time, a carefully aimed stone is thrown straight up from the bottom of the cliff with a speed of 20.0 . The stone and ball collide part way up.

43. ## math

an altitude of triangle is 5/3rd of the length of its corresponding base if their altitude be increased by 4cm and the base is decreased by 2cm, the area of the triangles remain the same. find the base and altitude of triangle ?????

44. ## Maths

20% of the books in a library were fiction books while the rest were non-fiction books. When 30% of the fiction books and 15% of the non-fiction books were borrowed, there were 1312 books left in the library. How many books were borrowed? (Please show me

45. ## Chemistry

Zinc reacts with hydrochloric acid according to the reaction equation: Zn(s)+2HCl(aq)->ZnCl2(aq)+H2(g) How many milliliters of 4.50M HCl1(aq) are required to react with 8.25g of an ore containing 30.0% Zn(s) by mass?

46. ## chem

Aspirin (C9H8O4) is produced from salicylic acid (C7H6O3), and acetic anhydride (C4H6O3): C7H6O3 + C4H6O3 ¨ C9H8O4 + HC2H3O2 . (c) What is the theoretical yield of aspirin if 189 kg of salicylic acid is allowed to react with 128 kg of acetic anhydride?

47. ## Statistics

. In testing a new drug, researchers found that 20% of all patients using it will have a mild side effect. A random sample of 15 patients using the drug is selected. Find the probability that: (A) exactly three will have this mild side effect (B) at least

48. ## Health and Nutrition

What are some benefits of taking dietary supplements

49. ## Physics

A typical laboratory centrifuge rotates at 4100 rpm. Test tubes have to be placed into a centrifuge very carefully because of the very large accelerations. (a) What is the acceleration at the end of a test tube that is 11 cm from the axis of rotation?

50. ## Computer studies

Draw a flowchart for a program that will accepts 30 intergers and print the number of positive and negatives numbers and the sum of the positive number

51. ## physics

A 30lb sand bag falls off a hot air balloon floating stationary 5000ft above the ground what is the speed of the bag at the moment it hits the ground?

52. ## chemistry

Technetium-99m emits only gamma radiation. Why would this type of radiation be used in diagnostic imaging rather than an isotope that also emits beta or alpha radiation?

53. ## Social science

Social conflict, empowerment theory and feminist theory. How are the theories similar? How are the theories different? What are the implications for interventions and community development?

54. ## chemistry

A patient with polycythemia vera(excess production of red cells) receives raioactive phosphorus-32. Why would this treatment reduce the production of red blood cells in the bone marrow of the patient?

55. ## algebra 2

i'm trying to solve this system of equations with 3 variables 5a-b+3c=5 2a+7b-2c=5 4a-5b-7c=-65 i tried to make the first equation like a=something so i could substitute it in to the 2nd equation, however i get decimals so it doesnt work how do i do this

56. ## Algebra

A rectangle is 4 inches longer than it is wide. It's perimeter is 28 inches. Write a system of two equations in two variables that describes this information. Then solve the system graphically.

57. ## math

james is making fruit juice, using fruit cordial and water. the label on the cordial says "to make 1 litre of fruit juice, use 200 ml of cordial and 800 ml of water" james uses 250 ml cordial and 850 ml of water. is james using the correct proportions?

58. ## Chemistry

Given the standard heats of reaction Reaction ∆H0 M(s) + 2 X2(g) → MX4(g) −123.7 kJ/mol X2(g) → 2 X(g) +297.3 kJ/mol M(g) → M(s) −25.1 kJ/mol calculate the average bond energy for a single M- X bond

59. ## math

. What’s the better deal: 1 lb. of Boars Head ham for $7.99 or ¾ lb of Boars Head ham for$5.49? Explain/show why.

60. ## physics

A student, starting from rest, slides down a water slide. On the way down, a kinetic frictional force (a nonconservative force) acts on her. The student has a mass of 70 kg, and the height of the water slide is 12.2 m. If the kinetic frictional force does

61. ## physics

the velocity acquired by a body moving with uniform acceleration is 12 m/s2 in 2 secs.and 18 m/s2 in 4 sec. find the initial velocity of the body?

62. ## Chemistry

One mole of carbon (12.0 g) in the form of crystalline graphite is burned at 25 ◦ C and 1.000 atm pressure to form CO2(g). All of the heat produced is used to heat a 4560 g bath of liquid water, originally at 25 ◦ C. What is the ﬁnal temperature of

63. ## English

Which of the following sentences is without any surface errors? a. Its up to Georgia and I who drives the car, whether Celine likes it or not. b. I reluctantly gave the hamster to my cousin because I was afraid Teddy, my cat, would attack it. c. The town

64. ## math

how do u reduce 8 gal 9pt

65. ## english

The following sentence is missing punctuation: “The crowd upset by the delay began to chant loudly for the band to appear.” Explain where the error has occurred in this sentence and how it can be fixed

66. ## check my precalc

#1. Make up a polynomial that has the following characteristics: crosses the x axis at 1 and 4, touches the x axis at 0 ad 2. and is above the xaxis between 0 and 2. I did (x+1)(x-4)(x^2)(x-2)^2 #2. its an illustration but one of the queestino says what is

An accelerometer in a control system consists of a 2.42 g object sliding on a horizontal rail. A low-mass spring is connected between the object and a flange at one end of the rail. Grease on the rail makes static friction negligible, but rapidly damps out

68. ## Chemistry

What volume of a 0.164 M potassium hydroxide solution is needed to exactly neutralize 0.680 grams of KHP ?

69. ## Chemistry

What is the mole fraction of ethanol when 5.00 mL of ethanol are combined with 10.00 mL of water?

70. ## Physics

you are driving on a long straight road. your friend sitting next to you is sleeping soundly. he wakes up as soon as you exit the highway to stop for gas. explain what it was that caused your friend to wake up.

71. ## Physics

A bullet is fired straight up from a gun with a muzzle velocity of 148 m/s. Neglecting air resistance, what will be its displacement after 6.3 s? The acceleration of gravity is 9.8 m/s2 .

72. ## Chem

From previous experiments, you have the following information. N2(g)+O2(g)2NO(g) Kc=2.3*10^-19 2NO(g)+O2(g)2NO2(g) Kc=3*10^6 using that information, how many moles of NO2(g) will be made if you started with 1 moles of N2(g) and 2 moles of O2 (g)?

73. ## statistics

1)Let X have a normal distribution with mean 6 and standard deviation 3. a) What is the probability that X > 8.7 2)What is the probability that X 1.9 ? I have got so far: P(Z > 0.9) but I do not know where to go from here! Thank You

74. ## Chemistry

Given the standard heats of reaction Reaction ∆H0 M(s) + 2 X2(g) → MX4(g) −123.7 kJ/mol X2(g) → 2 X(g) +297.3 kJ/mol M(g) → M(s) −25.1 kJ/mol calculate the average bond energy for a single M X bond. Answer in units of kJ/mol

75. ## chemistry

Given the standard heats of reaction Reaction ∆H0 M(s) + 2 X2(g) → MX4(g) −123.7 kJ/mol X2(g) → 2 X(g) +297.3 kJ/mol M(g) → M(s) −25.1 kJ/mol calculate the average bond energy for a single M X bond. Answer in units of kJ/mol

76. ## calculus PLZ HELP!!

find the equation for the line tangent to the curve at the given point. (x^2)(y^2)-2xy+x=1 at (2, 1/2)

77. ## Math

What is the derivative of (x^2+4x+5)/(x^3-2x)?

78. ## physics

Sue and Jenny kick a soccer ball at exactly the same time. Sue’s foot exerts a force of 52.7 N to the north. Jenny’s foot exerts a force of 91.8 N to the east. a) What is the magnitude of the resultant force on the ball? b) What is the direction of the

79. ## physics

A crate is pulled to the right with a force of 84.5 N, to the left with a force of 116.5 N, upward with a force of 685.7 N, and downward with a force of 242 N. What is the net external force in the x direction?

80. ## QNT/351

The names of the positions in a corporation, such as chief operating officer or controller, are examples of what level of measurement?

81. ## CALCULUS help!!!=))

find dy/dx -x^2y+2xy=3y^2-7

82. ## CALCULUS help!!!=))

find dy/dx (-x^2)(y)+2xy=3y^2-7

83. ## Physics

A truck is stopped at a stoplight. When the light turns green, the truck accelerates at 2.0 m/s2. At the same instant, a car passes the truck going 13 m/s. Where and when does the truck catch up with the car? _________m (from the intersection)

84. ## Math

Insert a set of parentheses in this expression so that ii is equivalent to 3y+10: 4y-3x-y+2x-8+5x+2

85. ## science- please check my work.

Aspirin (C9H8O4) is produced from salicylic acid (C7H6O3), and acetic anhydride (C4H6O3): C7H6O3 + C4H6O3 ¨ C9H8O4 + HC2H3O2 How much salicylic acid is required to produce 2.0 102 kg of aspirin, assuming that all of the salicylic acid is converted to

86. ## physics

A hot air balloon descends with an overall velocity of 4.2 m/s at an angle of 36.8⁰ below the horizontal. what is the horizontal velocity of the balloon?

87. ## Physics URGENT!!!

A 85.0 kg base runner begins his slide into second base when he is moving at a speed of 2.10 m/s. The coefficient of friction between his clothes and Earth is 0.570. He slides so that his speed is zero just as he reaches the base. (a) How much mechanical

88. ## Economics

If Jane can produce 3 pairs of shoes hourly, while Bob can produce 2, then one can infer that the __________ advantage belongs to __________. A. absolute; Jane B. comparative; Jane C. comparative; Bob D. comparative and absolute; Jane I think it's D but I

89. ## physics

Consider the Earth and a cloud layer 600 m above the planet to be the plates of a parallel-plate capacitor. (a) If the cloud layer has an area of 2.0 km2 = 2000000 m2, what is the capacitance?

90. ## maths

if the size of each exterior angle of a regular polygon is 90 degrees how many sides does it have?

129. ## english

what can be considered as leadership and if it like clubs and job. what else it could be?

130. ## Physics

A ball weighing 50N is pulled back by a rope to an angle of 20 degrees (the rope that the ball hangs from). Find the tension in the pulling rope.

131. ## Communication

is it possible to adapt listening styles to circumstances? give an example

132. ## Chemistry

Helium-oxygen mixtures are used by divers to avoid the bends and are used in medicine to treat some respiratory ailments. What percent (by moles) of is present in a helium-oxygen mixture having a density of 0.498 at 25 and 721 ?

133. ## Chem

Balance the following redox reactions in acidic solution by the half-reaction method Br–(aq) + I–(aq) + HClO(aq) = Br2(l) + IO3 + Cl–(aq)

134. ## physics

A train at a constant 68.0 km/h moves east for 41 min, then in a direction 65.0° east of due north for 22.0 min, and then west for 60.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north positive and west of

135. ## physics

A train at a constant 68.0 km/h moves east for 41 min, then in a direction 65.0° east of due north for 22.0 min, and then west for 60.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north positive and west of

136. ## Chemistry

Please help: A silicon wafer has a thickness of 0.084cm, a diameter of 10.16 cm, and a mass of 15.87 g. what is the density of silicon based on these measurement? I know that D=mass/volume. Is this equation right: 15.87g/(0.084cm*10.16cm)? thank you for

137. ## physics

A plane flies 475 km east from city A to city B in 50.0 min and then 986 km south from city B to city C in 1.00 h. For the total trip, what are the (a) magnitude (in km) and (b) direction of the plane's displacement, the (c) magnitude (in km/h) and (d)

138. ## chemistry

calculate the mass of sodium hydroxide needed to prepare 100 ml of a .10 m solution

139. ## social studies

Pookie is listening to music through headphones so that no one else can hear it. When Pookie's sister walks into the room, he says, "Sissy, do you like this song?" even though she cannot hear the music. Pookie's question indicates that he engages in which

140. ## physics

an object 12 kg of mass slides over a surface with horizontal force of 75 N. The friction force is of 17 N. Determine the acceleration of the object.

155. ## chemistry

How do I balance the following equation by the half-reaction method (it takes place in basic solution)? Fe(OH)2(s) + O2(g) = Fe(OH)3(s) the answer is 4Fe(OH)2(s) + 2H20(l) + O2(g) = 4Fe(OH)3(s) but how do I work it out?

156. ## chemistry

How could you use a precipitation reaction to separate the following pair of cations: K^+ and Hg2 ^2+? (write the formula and net formula for each reactant)? The answer is Hg2 ^2+ (aq) + 2Cl- (aq) = HgCl2(s) but how do I work it out?

157. ## Physics HELP!

A 85.0 kg base runner begins his slide into second base when he is moving at a speed of 2.10 m/s. The coefficient of friction between his clothes and Earth is 0.570. He slides so that his speed is zero just as he reaches the base. (a) How much mechanical

158. ## Math Coll

Find the coeficient of x^18 y^32 z^25 in (x + y + z)^75? How many monomials appear in the expansion of (x + y + z)^75?

Let 1

160. ## physics

An 18-year-old runner can complete a 10.0-km course with an average speed of 4.53 m/s. A 50-year-old runner can cover the same distance with an average speed of 3.91 m/s. How much later (in seconds) should the younger runner start in order to finish the

161. ## math

2 over x minus 3 is equal to 26 over x what is x? can u please help me

162. ## Chem

To what temperature in K must a variable volume container of helium gas be cooled to obtain a final volume of 0.182 L? The initial volume and temperature are 2.34 L and 314 K, respectively. The pressure and number of moles are fixed. You're supposed to us

163. ## intro chem

how much HCl is needed to dissolve a 2.5grams iron bar on a padlock

164. ## geometry

what is the slantheight of the square pyramid that can be curved out from a wooden cube of side 12cm?what is the lateral surface area?

165. ## chemistry

A 2.33-g sample of a mixture of CaCl2 and Ca(NO3)2 is treated with excess AgNO3(aq). The precipitate is filtered off, dried and weighed. The dried precipitate weighs 3.9 g. What is the percentage by mass of CaCl2 in the original mixture?

166. ## Analytical chemistry

what is the mass (in milligrams) of solute in 26.0mL of 0.25M sucrose (342g/mol)?

167. ## Physics

I eat a 500 Calorie lunch and go hiking up a mountain afterwards. Assuming that chemical energy is converted to gravitational potential energy with 50% efficiency, approximately how many miles up the mountain can I go before I need my dinner? 0.5 miles 1

168. ## physics

A rock is dropped from a tree of height 25 m into a lake (depth 5.0 m) below. After entering the water, the rock then fl oats gently down through the water at a speed of 1.5 m/s to the bottom of the lake. What is the total elapsed time?

169. ## Chemistry

The combustion reaction for benzoic acid C6H5CO2H(s) + 15 2 O2(g) → 7 CO2(g) + 3 H2O(ℓ) has ∆H0 = −3226.7 kJ/mole. Use Hess’s Law to calculate ∆H0 f for benzoic acid.

170. ## Math

What is 71 times 65 in ladder form

171. ## physics

A tire placed on a balancing machine in a service station starts from rest and turns through 4.82 revolutions in 1.48 s before reaching its final angular speed. Calculate its angular acceleration

ty's football practice lasted 2 1/2 hours. if 1/4 of the time was spent catching passes, how much time was spent catching passes?

173. ## math

the distance between two stations is 300km. two trains start simultaneously from these stations and move towards each other ,the speed of one them is 7k/hr more than the other . if the distance between them after 2hours of their start is 34km ,find the

174. ## Computer (Programming with Python)

Problem 1: Multiplication Drill Computers can perform calculations extremely quickly and accurately, but it's often handy to calculate with the computers we carry around inside our heads. Write a program to drill you in multiplication tables. Your program

175. ## Maths

Sophia's monthly salary is $2300. She gives$500 to her parents and saves 30% of the remaining money. She spends the rest. How much does she spent?

176. ## Math 8 - help!!!

Kylie needs to cut 6 pieces of yarn that are each 2/3 foot long. How much yarn does Kylie need? 2/3 x 6 right?

177. ## Math 8 - HW Qs. Check

Amy watched television for 2 3/4 hours. Charles watched television for 1/3 of the time Amy did. How long, in minutes did Charles watch television. 2 3/4 - 1/3 right?

178. ## Math

Suppose a triangular silk scarf has both of its shortest sides 14 inches long. If the angle between these sides is 110º, what is the area of the scarf? Round your answer to the nearest tenth of a square inch.

179. ## Chemistry

The standard enthalpy of formation of Mn2O3 is −962.3 kJ/mol. How much heat energy is liberated when 4.7 grams of manganese are oxidized by oxygen gas to Mn2O3 at standard state conditions? Answer in units of kJ

180. ## Maths

A school has 1800 pupils. 55% of the pupils are girls. 30% of the girls and 70% pf the boys travel by bus. a.) How many girls travel by bus? b.) How many boys travel by bus? c.) What percentage of the pupils travel by bus?

181. ## Maths

30% of the rabbits from a farm were lent to a zoo. After a month, 5/6 of the rabbits were returned to the farm. There were 228 rabbits in the farm now. a.) How many rabbits were lent to the zoo in the beginning? b.) How many rabbits were there at the farm

190. ## physics

plz tell me how does wireless communication work in a jist

191. ## statistics

. In testing a new drug, researchers found that 20% of all patients using it will have a mild side effect. A random sample of 15 patients using the drug is selected. Find the probability that: (A) exactly three will have this mild side effect (B) at least

192. ## stats

. Find the mean and standard deviation of the following probability distribution: x 1 2 3 P(x) 0.4 0.25 0.35 Please show all of your work.

193. ## Health and Nutrition

What are the government regulations surrounding dietary supplements?

194. ## Word study slash english

What are some words with the ay slash igh sound

195. ## Stats

Construct a scatterplot for the (x, y) values below, and answer the following questions. You do NOT need to submit your scatterplot with your answer; however, show all other work. x y 1 2.5 2 5.0 3 7.5 4 10.0 5 12.5 - What would be the slope of this

196. ## Anthropology

One of the great differences between human cultural behavior and that of monkeys and apes is that: (Points : 1) a great deal of human culture is learned through language. humans learn their culture through mimicking their parents. humans do not have

197. ## ciao

disegno di due segmenti uno il triplo dell'altro

198. ## chemistry

describe step by step, how will you prepare 10 mL of 0.020 M HCL from the 0.050 M solution?

199. ## Chemistry

What is wrong with this ionic equation and what is the correct way to write it? Cl2(aq)+ 2K+(aq)+2Br(aq)->Br2(aq)+ K+(aq)+ 2Cl-(aq)

200. ## Chemistry (edit)

What is wrong with this ionic equation and what is the correct way to write it? Cl2(aq)+ 2K+(aq)+2Br(aq)->Br2(aq)+ 2K+(aq)+ 2Cl-(aq)

201. ## stats

How many green elements are required to make this a legitimate probability distribution if there are a total of 50 elements in this sample? x red blue orange brown green P(x) 0.18 0.20 0.32 0.28

202. ## math

if x over 4 minus a over b is equal to 0 b is not equal to 0, then x equals what? thanks

203. ## physics

a block of mass m=0.9 kg is connected to a spring of force constant k= 775 N/m on a smooth horizontal surface. plot the potential energy of the spring from x= -5 cm to x= 5 cm. determine the turning points of the block if its speed at x= 0 is 1.2 m/s.

204. ## Chemistry

making 2 moles of No in a reaction requires 180KJ of energy. How much No will be made if this same reaction absorbel 950KJ OF ENERGY

205. ## math

ken ken puzzle 6* 50* 15+ 2/ 36* 20+ 1 2/ 3/ 9+ 7 2 21* 4* 15* 21+ 3/ 12+ 30+ 6 4* 48* 6 27+ 15* 7 14+ 28+ 14+ 7+ 20* 1 9* 2/ 35* 4/

206. ## Physics

A 85.0 kg base runner begins his slide into second base when he is moving at a speed of 2.10 m/s. The coefficient of friction between his clothes and Earth is 0.570. He slides so that his speed is zero just as he reaches the base. (a) How much mechanical

207. ## Math 8 - HW. Qs. Check

12 + v/2 = 17 My Answer - 10 right?????

208. ## Physics

Velocity/instantaneous velocity question? In a demonstration a ball falls directly to the ground. Which of the following statements about this event is not correct? (Assume downward is the positive direction.) a)The average velocity during the first half

209. ## physics

A ball rolls horizontally off a 3.2 m high table and lands 2.2 m from the end of the table. What is the horizontal velocity of the ball when it leaves the table?

210. ## math

• 9 different crusts • With or without cheese • 4 different sauces • 8 different meat toppings • 17 different non-meat toppings Obviously you can have only 1 crust, 1 cheese, and 1 sauce on a pizza. However, you can have anything from 0 to all 8

211. ## physics

a fly wheel of mass 66kg and 2m radius makes 55rpm.assuming mass is concentrated at the rim.calculate the angular velocity and moment of interia

212. ## mechanics

a fly wheel of mass 66kg and 2m radius makes 55rpm.assuming mass is concentrated at the rim.calculate the angular velocity and moment of inertia

213. ## physics

A 22.4-g bullet is fired from a rifle. It takes 3.37 × 10-3 s for the bullet to travel the length of the barrel, and it exits the barrel with a speed of 740 m/s. Assuming that the acceleration of the bullet is constant, find the average net force exerted

214. ## Chemistry

World energy supplies are often measured in the unit of quadrillion British thermal units (10^12 btu), generally called a "quad." In 2015, world energy consumption is projected to be 5.81*10^17kJ. Current annual energy consumption in the United States is

215. ## chemistry

Place charges and electron dots as needed on each ion. As Se Br K Ca Ga. I answered: As3+ Se2- Br- K+ Ca2+ Ga2+

216. ## Chemistry

World energy supplies are often measured in the unit of quadrillion British thermal units (10^12 btu), generally called a "quad." In 2015, world energy consumption is projected to be 5.81*10^17kJ. Current annual energy consumption in the United States is

217. ## Physics

Betty Bodycheck (mB = 60.0 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 46.3 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Immediately after the collision, Betty is heading in a

218. ## Science

Please list breeds of pigs found in the caribbean thank you.

219. ## Statistics

What is the probability that we would obtain two sample means that differ by 1.875, when the SD of the sampling distribution is estimated at .125 when our sample has 8 subjects?

220. ## math

please help me if x over 4 minus a over b is equal to 0 b is not equal to 0, then x equals what? thanks

221. ## Oral Book Report

My book is titled The Battle Of The Labyrinth. I have to do a Sentence Outline for this Oral Book Report. But i don't know where to start from to write my sentence outline. Should i go over the book again, or just find important stuff about it? The author

222. ## english

what can be considered as leadership and if it like clubs and job. what else it could be?

223. ## Chemistry

To what temperature in K must a variable volume container of helium gas be cooled to obtain a final volume of 0.182 L? The initial volume and temperature are 2.34 L and 314 K, respectively. The pressure and number of moles are fixed. You're supposed to us

224. ## physics

How do I find the acceleration on a velocity time graph when the graph has an irregular shape.

225. ## chemistry

I thought about the syntax of the problem and I have surmised that what I thought were two questions was actually one. I'm slow but not dead yet. 75g of tartaric acid in 1 liter is used in a titration. 25mL of tartaric acid solution is titrated against

226. ## writing (persuasive essay)

Hi. I'm in 10th grade and our teacher assigned us a persuasive essay to write in class over a topic that we debated about for the last two weeks. Every team had a different topics (mine was school should start from 11 am. to 5 pm), but now we're going to

227. ## chemistry... HELPP

Place charges and electron dots as needed on each ion. As Se Br K Ca Ga. I answered: As3+ Se2- Br- K+ Ca2+ Ga2+ but i got it wrong so please helppp!!!

228. ## Physics

An object is observed for a 5 second interval. During this time, the objects velocity increases from 2 m/s to a final velocity and the object travels 75 m. The acceleration of the object is constant. Given this information, which of the following

229. ## math

An open topped box can be created by cutting congruent squares from each of the 4 corners of a piece of cardboard that has dimensions of 20cm by 30cm and folding up the sides. Determine the dimensions of the squares that must be cut to create a box with a

230. ## social studies

Type of movement of the plates that created the landform 1. mountanis 2. valleys 3. plains 4. islands 5. deserts 6. plateaus