# Questions Asked onSeptember 11, 2012

1. ## chemistry

how many joules of nutritional energy are in a bag of chips whose label reads 245 Cal? if 1 lb of fat is stored by the body for each 14.6X10(3) KJ of excess nutritional emergency consumed.how many bags of chips contain enough nutritional energy to result

2. ## chemistry

What is the melting point of a mixture of 2.00 lb of NaCl and 12.00 pounds of ice if exactly half of the ice melts? Assume that all the NaCl disolves in the melted ice and that the van't Hoff factor for resulting solution is 1.44.

3. ## IPC

If a car can go from 0 to 60 mi/hr in 8.0 seconds, what would be its final speed after 5.0 seconds if its starting speed were 50 mi/hr? And thank you everyone for answering my questions!!

4. ## Physics

The bacterium Escherichia coli (or E. coli) is a single-celled organism that lives in the gut of healthy humans and animals. When grown in a uniform medium rich in salts and amino acids, these bacteria swim along zig-zag paths at a constant speed of 20

5. ## math

Meg claims that to make an angle greater, you just extend the rays,. how do you respond?

6. ## Fluid Mechanics

A circular disc having a diameter of 125cm is immersed in water so that the distance of its perimeter measured vertically below the water surface varies between 60cm and 150cm. Find the total force due to the water acting on one side of the lamina, and the

7. ## chemistry

The concentrations of Ca and Na in a sample of river water are 13.4 mg/kg and 5.2 mg/kg. Express the concentration in molality

8. ## chemistry

The density of acetonitrile (CH3CN)is 0.786 g/mL, and the density of methanol (CH3OH)is 0.791 g/mL. A solution is made by dissolving 24.5mL (CH3OH)in 98.9mL (CH3CN). What is the mole fraction of methanol in the solution?

9. ## ap chemistry

The reaction of 9.5 grams of fluorine with excess chlorine produced 5.9 grams of ClF3. What percent yield of ClF3 was obtained? Answer in units of %

10. ## Chimestry

(Iron ore is impure Fe_2O_3. When Fe_2O_3 is heated with an excess of carbon (coke), metallic iron and carbon monoxide gas are produced. From a sample of ore weighing 950kg , 533kg of pure iron is obtained). What is the mass percent by mass, in the ore

11. ## Biology

A plant does not use potassium for a building material or energy source, but it stops doing photosynthesis and dies if it runs out of potassium. Why?

12. ## chemistry

Determine the melting point of an aqueous solution containing 115 mg of saccharin (C7H5O3NS)added to 1.00 mL of water (density of water=1.00 g/mL, Kt=1.86 C/m)

13. ## physics

Two point charges are placed along a horizontal axis with the following values and positions: +3 µC at x = 0 cm and - 12 µC at x = 35 cm. At what point (the coordinate) along the x axis is the electric field zero? Expess the answer (in cm) with one

14. ## physics

In coming to a stop, a car leaves skid marks 77 long on the highway Assuming a deceleration of 7.20 , estimate the speed of the car just before braking

15. ## ENGLISH

1.When Thomas Paine writes about reconciliation, he is referring to the southern Colonies staying peacefully connected to the northern Colonies. the Colonies staying peacefully connected with Great Britain. the Colonists staying peacefully connected to

16. ## accounting

what are examples of liability

17. ## chemistry

A backpacker carries 3.0L of white gas as fuel for her stove. How many pounds does the fuel add to her load? Assume the density of white gas to be .79 g/cm^3

18. ## algebra

The quotient of 23 and u minus t

19. ## ap chemistry

In the reaction below, 22 g of H2S with excess O2 produced 10 g of sulfur. ?H2S + ?O2 ! ? S + ?H2O. What is the percent yield of sulfur? Answer in units of %

20. ## physics

A swimmer heads directly across a river, swimming at 1.10 m/s relative to the water. She arrives at a point 52.0 m downstream from the point directly across the river, 72.0 m wide. What is the speed of the river current? What is the swimmer's speed

21. ## Psychology

Need help double checking these tricky psychology questions. I put an asterix (*)next to my answers, Thanks! Which of the following fields is the best example of psychology as a basic science? A-Educational psychology B-industrial organizational psychology

22. ## english

A loon I thought it was But it was My love's splashing oar. (1 point) a to persuade b to inform c to express d to analyze

23. ## CHEM HELP ASAP!

Calculate the heat energy released when 29.7 g of liquid mercury at 25.00 °C is converted to solid mercury at its melting point. Constants for mercury at 1 atm: Heat capacity of Hg (l) 28.0 J/Mol*K, Melting pt 234.32 k, and enthalpy of fusion 2.29 kg/mol

24. ## Fluid Mechanics

A circular disc having a diameter of 125cm is immersed in water so that the distance of its perimeter measured vertically below the water surface varies between 60cm and 150cm. Find the total force due to the water acting on one side of the lamina, and the

25. ## Chemistry

DrBob222, HELP! Calculate the heat energy released when 29.7 g of liquid mercury at 25.00 °C is converted to solid mercury at its melting point. Constants for mercury at 1 atm: Heat capacity of Hg (l) 28.0 J/Mol*K, Melting pt 234.32 k, and enthalpy of

When drawing a kekule structure for CH3CH2OH(alcohol) do I leave the OH at the end just like it is (OH) or would it be shown as O-H? I know that to start of it would be -C- with an H on the top and the bottom as well as the left side and then connected to

27. ## Math

how do I solve this problem.. Marty has 6 more pogs the Jen. After he gives 10 pogs to Jen, how many more pogs will Jen have than Marty>

28. ## biology

One in every 685 children born in the chicoutimi area of quebec province has tyrosinemia. It is cause by having two copies of the receissive allele. Under the assumptions of Hardy-Weinberg equilibrium, calculate the value of q required to produce this

29. ## Math

Steven bought a piece of meat and cut it into three pieces. The mass of the first piece of meat was 5/8 of the mass of the second piece of meat. The mass of the second piece of meat was 4/7 of the mass of the third piece of meat. a. Find the ratio of the

30. ## Fluid Mechanics

A circular disc having a diameter of 125cm is immersed in water so that the distance of its perimeter measured vertically below the water surface varies between 60cm and 150cm. Find the total force due to the water acting on one side of the lamina, and the

31. ## AP world history

1) What conditions influenced the rise of Islam in Arabia? 2) How did Islam unite and effectively rule diverse people and cultures? 3) How did Islam change over time from the time of Bedouin tribes to the Abbasid Caliphate? How did Islam continue over time

32. ## phyics

Richard is driving home to visit his parents. 125 of the trip are on the interstate highway where the speed limit is 65 . Normally Richard drives at the speed limit, but today he is running late and decides to take his chances by driving at 72 . how do i

33. ## Organic Chemistry

Hello I have to determine the theoritical yield of sulfanilamide after crystalization of impure sulfanilamide with 95% ethyl alcohol (the impure sulfanilamide contains 5% Fluorenone) I understand how to calculate the theoretical yield, my problem is

37. ## Physics

A cannonball is shot (from ground level) with an initial horizontal velocity of 38.0 m/s and an initial vertical velocity of 26.0 m/s. The initial speed of the cannonball 46.04 m/s The initial angle θ of the cannonball with respect to the ground 34.38°

49. ## Chemistry

A bug is observed to travel 72 cm in 7.5 seconds. What is the bug's speed in miles per hour?

50. ## Limits

The limit as x approaches 0 of (tan2x)/3x = ?

51. ## math

you invested $4000 in two accounts paying 2% and 9% annual interest, respectively if the total interest earned for the year was$150, how much was invested at each rate. $_was invested at 2% and _$ was invested at 9%

52. ## physics

A diver springs upward from a board that is 2.98 meters above the water. At the instant she contacts the water her speed is 9.39 m/s and her body makes an angle of 70.4° with respect to the horizontal surface of the water. Determine her initial velocity.

53. ## Physics

A cannonball is shot (from ground level) with an initial horizontal velocity of 38.0 m/s and an initial vertical velocity of 26.0 m/s. The initial speed of the cannonball 46.04 m/s The initial angle θ of the cannonball with respect to the ground 34.38°

54. ## physics

Find the magnitude and relative direction (e.g., NE, NW, SE, SW) of the velocity of an airplane relative to the earth, if the velocity of the airplane relative to the air is 165 km/hr. south to north and the wind velocity is 65 km/hr. at an 50o angle from

55. ## physics

Over a time interval of 1.72 years, the velocity of a planet orbiting a distant star reverses direction, changing from +18.2 km/s to -18.8 km/s. Find (a) the total change in the planet's velocity (in m/s) and (b) its average acceleration (in m/s2) during

56. ## Physics

A cannonball is shot (from ground level) with an initial horizontal velocity of 38.0 m/s and an initial vertical velocity of 26.0 m/s. The initial speed of the cannonball 46.04 m/s The initial angle θ of the cannonball with respect to the ground 34.38°

57. ## physics

A speed skater moving across frictionless ice at 9.0 hits a 6.0 -wide patch of rough ice. She slows steadily, then continues on at 6.1 m/s. What is her acceleration on the rough ice?

58. ## Chem

If a rock climber accidentally drops a 56-gram piton from a height of 375 meters, what would its speed be before striking the ground? Ignore the effects of air resistance.

59. ## AP Physics

A home run is hit such a way that the baseball just clears a wall 30 m high located 114 m from home plate. The ball is hit at an angle of 37 ◦ to the horizontal, and air resistance is negligible. Assume the ball is hit at a height of 1 m above the

60. ## math

How could you use 5x6 equals 30 to find the product of 6x6.

61. ## economics

Why does PPF become a straight line? When it becomes a curve? When the PPF shifts parallelly? When it shifts clockwise or anti-clockwise?

62. ## economics

what is producer surplus? “The more the competition among the sellers, the less the producer surplus enjoyed by the producers” – do you agree with the statement. Justify your answer. Suppose, a producer is willing to sell 50Kg potato at price

63. ## Pre Calculus

1. A rectangular box has a square base, four sides, but no top. It has a volume of 20 cubic feet. Let A be the surface area of the box, and L the length of one side of the base. (a) The volume is measured in cubic feet. What units are convenient to use for

64. ## Physics

An explorer in the dense jungles of equatorial Africa leaves his hut. He takes 39 steps at an angle 45 north of east, then 80 steps at an angle 60 north of west, then 51 steps due south. Assume his steps all have equal length. Save him from becoming

65. ## English

Word Bank : apparel besiege compress denounce dispatch douse expressly famished forsake gainful immense inept ingenious instantaneous irk libel misgiving oaf recede repast Some people hailed the man as a genius others ____ him as a quack Denounce? Your

66. ## physics

A machine gun fires 20 bullets per second in to a target. Each bullet weight 10 gm and has a speed of 1500m/s; Find the Force necessary to hold the gun in position.

67. ## Physics

At one instant a bicyclist is 50 m due east of a park's flagpole, going due south with a speed of 18 m/s. Then, 13 s later, the cyclist is 45 m due north of the flagpole, going due east with a speed of 13 m/s. For the cyclist in this 13 s interval what is

68. ## physic

The initial velocity and acceleration of four moving objects at a given instant in time are given in the following table. Determine the final speed of each of the objects, assuming that the time elapsed since t = 0 s is 2.2 s.

69. ## Chimestry

(The reaction of calcium hydride and water produces calcium hydroxide and hydrogen as products). How many moles of H_2(g) will be formed in the reaction between 0.90mol CaH_2(s) and 1.33mol H_2O(l)?

70. ## aP world history

2) How did Islam unite and effectively rule diverse people and cultures? 3) How did Islam change over time from the time of Bedouin tribes to the Abbasid Caliphate? How did Islam continue over time from the Bedouins to the Abbasid?

71. ## CHEM HELP ASAP!!

Two 20.0-g ice cubes at –10.0 °C are placed into 275 g of water at 25.0 °C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts. heat capacity h2o (S)=37.7 j/mol*k heat

72. ## Physics

A record of travel along a straight path is as follows: 1. Start from rest with constant acceleration of 2.40 m/s2 for 14.0 s. 2. Maintain a constant velocity for the next 2.85 min. 3. Apply a constant negative acceleration of −8.39 m/s2 for 4.00 s. (a)

The average energy released in the fission of a single uranium-235 nucleus is about 3. 10-11 J. If the conversion of this energy to electricity in a nuclear power plant is 45% efficient, what mass of uranium-235 undergoes fission in a year in a plant that

74. ## physics

IP A jogger runs with a speed of 3.10{\rm m/s} in a direction 25.0{^\circ} above the x axis. Find the x and y components of the jogger's velocity.

75. ## Organic Physiological Chemistry

draw each of the following compounds using condensed formulas: a) 3,3,5-trimethyl-1-hexene b) 1-bromo-3-chloro-1-heptyne c) 3-heptyne Not sure if I am doing this right, but for a) i put CH3C(CH3)2CH=CH3

76. ## Physic 210

you drive due east at 85km/h for 50min. then you follow a road going 60 degrees south of east, going 90km/h for another 30min. Find your total displacement.

77. ## College Algebra

You plan to invest $12,000 in two funds paying 41/2% and 5% simple interest. (There is more risk in the 5% fund.) Your goal is to obtain a total annual interest income of$580 from the investment. What is the smallest amount you can invest in the 5% fund

78. ## chemistry

Ethanol is a common laboratory solvent and has a density of 0.789 g/mL. What is the mass in gram of 123 mL of ethanol?

Each of the first 4 pit stops a racecar driver makes loses ten seconds off the leader. The pit crew makes adjustments, and at each of the next two pit stops he gains 7 seconds on the leader. How much time is the driver off the leader? a. 40 seconds b. 14

80. ## Chemistry

How would I find the percent of water lost in alum after it has dried for a week? Wet Alum = 13.44g Dry Alum = 11.28g

81. ## IPC

A student is running through the halls of solon high school at a constant velocity of 4 m/s, so that he/she can be on time to science class. If the class is 25 meters away, will the student make it in 5 seconds?

82. ## economics

With a fixed amount of resources, 20 units of computers or 30 units of food can be produced. Also, the combinations of computer and food can be produced. Combinations are 25 units of food and 4 units of computers, 20 units of food and 7 units of computers,

83. ## hW

A map scale shows that 1.3 inch on the map equals an actual distance on 3 miles. If a distance on the map is 3.4 inch, what is the actual distance in miles?

84. ## physics

In the design of a supermarket, there are to be several ramps connecting different parts of the store. Customers will have to push grocery carts up the ramps. A grocery cart has a mass of 30kg. The coefficient of friction is .10. Assume that the shoppers

85. ## Physics

A projectile is fired straight up at a speed of 13 m/s. How long does it take to reach the top of its motion? The acceleration due to gravity is 9.8 m/s2 .

86. ## Chemistry

Given a C=O double bond, how do you determine the length of the bond in different molecules using resonance structures? I know single bonds are longer than double bonds...but how do you distinguish between lengths of the same double bond in different

87. ## Physics

The left ventricle of the heart accelerates blood from rest to a velocity of +21.4 cm. A. If the displacement of the blood during the acceleration is +1.55 cm, determine its acceleration (in cm/s2). B. how much time does the blood take to reach its final

88. ## Chemistry

DrBob222,HELP! Two 20.0-g ice cubes at –10.0 °C are placed into 275 g of water at 25.0 °C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts. heat capacity h2o (S)=37.7

89. ## DrBob222 : need help with the problem

An unknown compound, X, is though to have a carboxyl group with a pKa of 2.0 and another ionizable group with a pKa between 5 and 8. When 75 mL of 0.1M NaOH is added to 100 mL of a 0.1M solution of X at pH 2.0, the pH increases to 6.72. Calculate the pKa

90. ## Science

How many mL of 80% v/v ethanol do you need to make 200 mL of a 50% ethanol solution in water?

91. ## Physics

Three men are trying to move a wardrobe. One pushes northward with a force of 100N; the second pushes eastward with a force of 173N; the third pushes in a direction 60 degrees west of south with a force of 200N. What is the resultant force on the wardrobe

92. ## ap chemistry

Sulfuric acid (H2SO4) is prepared commer- cially from elemental sulfur using the contact process. In a typical sequence of reactions, the sulfur is first burned: S + O2 ! SO2 , then it is converted to SO3 using a catalyst: 2 SO2 + O2 ! 2 SO3 . The

Which expression has the same value as −|−3|⋅|5|? a. −3⋅(−5) b. 3⋅5 c. −3⋅5 d. −(−3⋅5)

94. ## Spanish

Letters are: a m i a t a m t d r s Need to unscramble to come up with a "member of the family" Thanks!

95. ## MATH

WHAT IS THE SUM OF ALL THE DISTINCT, POSITIVE PRIME FACTORS OF 1260

96. ## science

How many ml of a 2% solution will 20 ml of a 10% solution make?

97. ## Math

The ratio of red jelly beans to yellow jelly beans in a dish is 3:4. If Greg eats 3 red jelly beans and 6 yellow ones, the ratio is 4:5. How many yellow jelly beans were originally in the dish?

98. ## physics

An electron in the cathode ray tube of a tele- vision set enters a region where it acceler- ates uniformly from a speed of 53800 m/s to a speed of 4.58 × 106 m/s in a distance of 2.82 cm. What is its acceleration? Answer in units of m/s2

99. ## english

can you you please answer this : 1.It seems that the match is postponed ans. The match seems to be postponed tell me the grammatical aspects in the above sentences both are in passive form only. 2.It is likely that sherry will be awarded the prize

100. ## Psychology

Where are selfish impulses? Examples of social conscience?

101. ## Math

Three fair dice are rolled, and all outcomes are equally likely. What is the probability that the sum of all the numbers on the dice is at most 6?

Classify the following functional groups: 1)CH3CH = CH2 I think this is an alkene 2) CH3CHCH3 I think it is an alcohol. ! OH Would you agree with my answers?

103. ## geography

I just wanted to make sure my answers are correct, Can you check it please? Find an example of an area of land that is smaller than a continent and is completely surrounded by water. What term is used to describe this type of land? An example is Jamaica.

104. ## Physics

A major-league pitcher can throw a baseball in excess of 46.6 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 16.3 m away from the point of release?

105. ## math

how do i solve for x when x = log(32.5)? here's my work: log x = y 10^y = x then, x = log (32.5) 10^x = 32.5 10^x = 17/2 this is where i get stuck... i don't know how to get rid of the bases... can some one please teach me how? thank you! :)

106. ## Chemistry- help

1) How do I calculate what the mass would be for the flask containing water and alkaseltzer if: -mass of flask and the 10ml of water equals 150.23g -mass of alkaselzer equals 0.65g Calculate the mass of the carbon dioxide gas if: -mass of flask , water ,

107. ## physics

A sprinter explodes out of the starting block with an acceleration of + 2.29 m/s2, which she sustains for 1.13 s. Then, her acceleration drops to zero for the rest of the race.

108. ## math

Tell what operation you would to write each expression 6 more than 13

109. ## math

What numerical expression for 31 increased by 14?

110. ## calculus

A fixed amount 15000 is invested in a tax-sheltered account at an annual rate of percent, compounded continuously. Let represent the amount in the account at time . Part A. Let percent. Give the differential equation that describes the rate of change in

111. ## mth

why is the number 50 important

283. ## Psychology

How do you think your psyche has evolved to meet the challenges of your society and culture in this time and place? Can some give me some examples so that I can get an idea?

284. ## AP Physics

A ball is thrown horizontally from the top of a building 51 m high. The ball strikes the ground at a point 120 m from the base of the building. The acceleration of gravity is 9.8 m/s 2 Find the x component of its velocity just before it strikes the ground.

285. ## AP Physics

A parachutist with a camera, both descending at a speed of 9.2 m/s, releases the camera at an altitude of 32.3 m. What is the magitude of the velocity of the camera just before it hits the ground? The acceleration of gravity is 9.8 m/s 2 and air friction

286. ## organic chemistry

how to find ethyl benzoate from methyl benzene

287. ## Geometry

B is between A and C. Solve for x, if AB=2x+6, BC=4x-3, and AC=5x+12

288. ## Governement

Can you explain who the Kock Brothers are? and Also what is NUns on the bus?

289. ## math

x+y+5z=18 x+y+7z=26 x-4y-7y=-35 its a solve a 3 equation solve the system

290. ## biology

Do production of anti-A, anti-B, and anti-Rh antibodies require the exposure to antigens

291. ## chemistry (need asap!)

is it possible for one molecule of salicylic acid to form an ester with a second molecule of the same substance? Use equations and/or structures. Please help, i am pretty sure it couldn't because of steric hindrance, however i am not sure how to explain

292. ## Math Ratio and Fractions

The ratio of the length of Pole A to the length of Pole B is 4:5. a. find the ratio of the length of pole A to the total length of the two poles. b. what fraction of the length of pole A is the length of pole B. c. what fraction of the length of pole B is

293. ## math

which units would be most appropriate for measuring the perimeter of a swimming pool, square yards, yards, or cubic yards?

294. ## Algebra

Which ordered pair (x,y) makes the relation below a function? {(1,2), (-2,4), (3,3), (-4,4), (x,y) A (-4,-2) B (-2,3) C (3,2) D (5,1)

295. ## CHEMISTRY HELP ASAP!

is it possible for one molecule of salicylic acid to form an ester with a second molecule of the same substance? Use equations and/or structures. Please help, i am pretty sure it couldn't because of steric hindrance, however i am not sure how to explain

296. ## Math

To Train For a marathon Katie runs 20 km 4 days a week. How many kilometers does she run each week a) 20x4x30x2 B) 4+20x30 c) 4x20+2x30 what am i supposed to do?

297. ## algebra

if the question asks: (length) nine added to a number x and the width is three times a number x. would it be wrote like this: (length) 9+x (width) 3*x??????

298. ## spelling

write root webs for Insincere

299. ## math

A wildfire spread for 7 days and covered a total 780 square miles. How can you estimate the number of square miles the wildfire covered per day?

300. ## college biology

Why LDL is considered the bad cholesterol and HDL the good cholesterol

301. ## English

How do you use roundabout ( a circuitous or indirect road, method, etc) in a sentence?

302. ## spanish

what spanish word is missing from the sentence, Tus hermanos son los de tus padres.

303. ## element of design

graphic designer sometimes must adjust the spacing between letters so that the results looks right to them. this is called

304. ## math

solve the problem 456 + 65.

305. ## Calculus

Find if there are any vertical asymptotes: g(theta)= (tan4theta)/(4theta)

306. ## Math

x is to 6 as 0.8 is to 1.5 How do I write a proportion with that? (proportion such as eg. 14/105=x/315) is it x/6=0.8/1.5 or is it x/0.8=6/1.5 Urgent!!

307. ## math

fred was born 15days before ann. jake was born 28days before fred. lester was born 32 days before jake. how many days before ann was born was lester born

308. ## math

A cylindrical pipe has a radius of 8 inches and a height of 100 inches. About how many cubic inches of water will fill the pipe?

309. ## math

how can you check that the sum of 125+38+75 is 238

311. ## organic chemistry

What equation will ch=ch-ch2-ch2-ch2-ch3 + kmno4 create?

312. ## chemistry

Cellobiose(a nonvolative, nonelectrolyte) is a sugar obtained by degratation of cellulose. If 200.mL of an aqueous solution containing 1.500g of cellobiose at 25C give rise to an osmotic pressure of 407.2mmHg. What is the molecular mass of Cellobiose?

313. ## math

advice to finding all the factors of 110

314. ## physics

Two motorcycles are traveling due east with different velocities. However, 5.81 seconds later, they have the same velocity. During this 5.81 -second interval, motorcycle A has an average acceleration of 4.07 m/s2 due east, while motorcycle B has an average

315. ## geography

what is organic matter

316. ## math

Find the requested probabilities. P(B) = 1/5

317. ## math

The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 167 and a variance of 9. The material is considered defective if the breaking strength is less than 158 pounds. What is the probability that a single,

318. ## englishhhh

1. How was jonah from cats cradle a dynamic character

319. ## english

I need 12 vivid verbs for the following words: lake, river, ocean, swimming pool.

320. ## Soc studies

What are the differences between the 1st and 2nd continental congress and their outcome?

321. ## math

In a recent survey of 100 women, the following information was gathered. 32 use shampoo A. 41 use shampoo B. 40 use shampoo C. 2 use shampoos A and B. 4 use shampoos A and C. 10 use shampoos B and C. 1 use all three. Use the figure to answer the question

322. ## math

Write the expression in terms of common logarithms, and then give a calculator approximation (correct to four decimal places). = 1

323. ## math

how many comanations make 52 cents in dimes and pennies

324. ## Math

Two points for each of two lines are given. Determine if the lines are parallel, perpendicular, or neither. L1: (4, -6) and (3, -2) L2: (3, -1) and (7, 0)

325. ## Biology 111

what is the amino acids?

326. ## earth science

A swimmer completed the 1,500 meter freestyle in 625 seconds. What was his average speed?

327. ## Order of Operations

Which choice gives the correct order of operations needed to find the value of the expression below? 6+7(5-2)/3 A.+,-,x,/ B.-,x,+,/ C.-,x,/,+ D./,x,-,+

328. ## math

Why did the cbicken add its opposite to itself? To get to the other side of the equation

329. ## science

what is a tool used to measure?

330. ## physics

The top of the pool table is 2.80 ft from the top of the floor. A pool player hits the ball and it lands 14.25 ft from the edge of the table. Calculate his break speed and the speed at which the ball hit the ground

331. ## Algebra

Whats The quotient of 6 and a number increased by 6 written in algebraic expression also whats The product of 9 and c decreased by 8

332. ## Physics

Starting with the kinematics equation x = vot + ½ at^2, derive an expression relating the acceleration and initial velocity of an object to two paired position and time measurements. In other words, if an object's position is x1 at t1, find the

333. ## math

a rectangular prism is 42ft^3. What is the volume of a pyramid with the same base and height?

334. ## chem

Each beta particle has an energy of 2.51 10-14 J, and 7.5% of the radiation is absorbed by the person. Assuming that the absorbed radiation is spread over the person's entire body, calculate the absorbed dose in rads and in grays i got 3.27e-5 for grays

335. ## english

could you pl explain how the perfect infinitive is effectively used in english