# 1.3 /73.814 In significant digit notation, divid, and the answer to two significant digits. I will be happy to critique your work

71,152 questions, page 538
1. ## dog behavior

please check my answer thanks so much :) When teaching the leave it command, when should you give the dog a reward? A. While its chewing the forbidden object so it will leave it and take the treat instead B. The instant it leaves the forbidden object C. As

asked by Maria on July 26, 2008
2. ## Calculus

yes! tnk u ok? It's actually (x->0.) Find the limit of cot(x)-csc(x) as x approached 0? Lim [cot(x) - csc (x)] ..x->0 = Lim [(cos x -1)/sin x] ..x->0 Use L'Hopital's rule and take the ratio of the derivatives: Lim (-sin x/cos x) = 0 x->0 thank you very

asked by Maria on May 6, 2007

a 1500 kg car is driven around a circle of radius 120 m and at a speed of 26 m/s. calculate the magnitude of the centripetal force of the car. What real force keeps the car moving in a circle? the answer is not one of the four fundamental forces, but way

asked by melanie on October 19, 2015

I ask a friend to watch my bike while I go shopping, and the bike gets stolen. I can sue my friend for damages but only if I can prove that my friend was: grossly negligent, or failed to exercise at least slight care, or failed to exercise reasonable care.

asked by bobby on June 26, 2012
5. ## math

A snowball was thrown from a cliff. The height above ground of the snowball is modeled by the function h(t) = -16t2 + 48t + 28, where h is height in feet, and t is time in seconds. How long was the snowball in the air? Did everything got (4t+7)(t+1) then

asked by Jalen on December 11, 2016
6. ## College Personal Finance

Annual interest of 6.0% paid if balance exceeds \$900, \$12 monthly fee if account falls below minimum balance, average monthly balance \$1,135, account falls below \$900 during 2 months. Round the answer to the nearest cent.

asked by Kendra on February 6, 2012
7. ## calc

Given the position function, s of t equals negative t cubed divided by 3 plus 13 times t squared divided by 2 minus 30 times t, between t = 0 and t = 9, where s is given in feet and t is measured in seconds, find the interval in seconds where the particle

asked by Mel on January 8, 2016
8. ## Physics

What is the difference between scalar and vector quantities and what two methods are used to describe vectors? Answer: Scalar quantities measure only distance (speed) while vector quantities measure both distance and direction, ( which is specifically

asked by Lucina on January 6, 2015
9. ## Math

I have a problem. A theater runs 2 movies The first movie is 40 minutes long, the second is 60 minutes long. They start at 3:00. At what time will they start at the same time again? I know the answer is 5:00. I know it robably has something to do with 120

asked by Janice on September 20, 2009
10. ## Math

Determine whether each event is impossible, unlikely, as likely as not, likely or certain. Then tell whether the probability is 0, close to 0, 1/2, close to 1 or 1. 2. Randomly picking a green card from a standard deck of playing cards. My answers is that

asked by Patrick on March 27, 2018
11. ## math(help)

please help someone explain this please!! The length of a marathon is 138,435 ft.each stride,or step,by a particular runner is 3 ft long.does the number of strides the runner takes fit evenly into the length of the race?(EXPLAIN ANSWER PLEASE)

asked by matt on November 21, 2013
12. ## 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

asked by Seth on November 2, 2011
13. ## accounting

Compute inventory turnover for 2005 and 2004. The inventory balance at December 31, 2003, was \$294 million. Do the trend of net income from 2004 to 2005 and the change in the rate of inventory turnover tell the same story or a different story? Explain your

asked by mary on April 12, 2011
14. ## Physics

An electron is projected, with an initial speed of vi=1.10e+05 m/sec, directly towards a proton that is essentially at rest. If the electron is initially a great distance from the proton, at what distance from the proton is its speed instantaneously equal

asked by bethel on February 28, 2013
15. ## Algebra

Jed decided he needs to start exercising more. On Monday, he runs 2 miles. on Tuesday, he runs 4 miles. On Wedsnesday he runs six miles. He continues with this pattern each day for five days, Monday through Friday. How many total miles did he run in the

asked by Anon on May 28, 2015
16. ## math

A cylinder container of radius 15 cm has some water in it. When a solid submerged into the water, the water level rises 1.2 cm. (a) Find, the volume of the water displace by the solid leaving your answer in terms of π (b) If the solid is a circular cone

asked by kudu on February 9, 2015
17. ## Chemistry

When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 26.4 g of carbon were burned in the presence of 82.1 g of oxygen, 11.7 g of oxygen remained unreacted. What mass of carbon dioxide was produced? Express your answer to one

asked by Eric on September 14, 2016
18. ## math

What percent of 80 is 16? 20. How did they get that answer?? of means times. Is means equals. DecimalPercent x 80= 16 divide both sides by 80 decimal percent = 16/80= .2 percent=decimalpercent x 100 There is a formula for that -- but I never learned it. I

asked by Mack on June 26, 2007
19. ## Biology

The pulmonary artery, which pumps blood from the heart to the lungs, has an inner radius of 1.34 mm and is 5.0 cm long. If the pressure drop between the heart and lungs is 420.0 Pa, what is the volume flow rate of blood in the pulmonary artery? Give your

asked by sendy on November 22, 2018
20. ## Chemistry

Mothballs are composed of a chemical called naphthalene which has a formula of C10H8 a) what is the mass of a single naphthalene molecule in amu? b) what is the molar mass of naphthalene? c) what is the mass of a single naphthalene molecule in grams? I

asked by Kiana on March 22, 2016
21. ## Physics

An electron is projected, with an initial speed of vi=2.06e+05 m/sec, directly towards a proton that is essentially at rest. If the electron is initially a great distance from the proton, at what distance from the proton is its speed instantaneously equal

asked by P on March 5, 2013
22. ## Statistics

Suppose 52 of the students in class have a calculator and 14 have a computer. It is known that 4 do not have either a computer or calc and there are 64 students in the class. Find the probability that a randomly chosen student has a computer AND a

asked by Kim on May 26, 2009
23. ## Physics

Halley comet which passes around the sun every 76 years has an elliptical orbit. when closest to the sun it is at a distance of 8.823 x 10^10 m and moves with a speed of 54.6 km/s. The greatest distance between hally's comet and the sun ( aphelion ) is

asked by Lonely on July 30, 2011

Janet Jones borrowed \$3,000 on 90-day 12 percent note. Janet paid \$250 toward the note on day 35. On day 80 she paid an additional \$400. Using the U.S. Rule her adjusted balance after her first payments is: Answer: \$2,785 Please do step by step. Thank you.

asked by Liz on January 29, 2012
25. ## Ap physics

fine sand moves through pipes just like fluid. a sandblasting machine moves fine sand through a pipe of inner diameter 2.8 cm at 75L/minutes. the sand comes out from two identical jets at speed 45 m/s. calculated the diameter of the holes through which the

asked by jay on December 6, 2015

i have to fill in the blank: adverbs of time tell ___ something happens. I wrote: when adverbs of frequency tell ___ something happens. i wrote : how often or is it also when? can you check this? i have an ARTICLES EXCERCISE 1) ARTICLES ARE USE WITH: a

asked by marko on December 7, 2011
27. ## English

Which sentence uses the active voice? A. Breakfast is always served at 8 a.m. sharp. B. Juice is included in all breakfast meals. C. Customers are served as quickly as possible. D. You can have anything that you find appealing. I don't really understand

asked by Klauus on May 8, 2019
28. ## Microeconomics

taxes may cause deadweight losses because________. a. they transfer purchasing power from buyers to the government. b. they lower the surplus in the market. c. they increase consumer surplus at the expense of producer surplus d. they transfer purchasing

asked by Juan on June 24, 2015
29. ## physics

Starting from rest, a(n)9 kg block slides 9.7 m down a frictionless ramp (inclined at 30◦ from the ﬂoor) to the bottom. The block then slides an additional 23.5 m along the ﬂoor before coming to stop. The acceleration of gravity is 9.8 m/s 2.Find the

asked by enrique on November 14, 2013

OMGosh Please help me (mom) so I can help my daughter with this word problem!!! Cam rode her bike 5 times as far as Dante did. Dante rode 187 meters farther than Michael did. Cam rode 15.25 kilometers. How many meters did Michael ride? Explain how you got

asked by Sara on April 10, 2014
31. ## Algebra

The instruction manual on the industrial oven suggests your oven temperature will increase by 45 degrees Fahrenheit per minute. When the oven is initially turned on, the temperature is 70 degrees Fahrenheit. What will the temperature of the oven be after 7

asked by Mary K on August 2, 2009
32. ## alg

ken griffy jr hit 23 home runs in the first 50 games of the season. If he hit homw runs at this pace all season, how many would he have at the end of the year? aSSUME A 168 games schedule. Round your answer to the nearest whole number of home runs.

asked by kid on July 12, 2010
33. ## geometry

Can anyone help me to solve this, please? A right prism has a polygonal base with n sides. Each side has a length of 5 in. The altitude of the prism is 20 in. If the base had n+1 sides, each still having a side of length 5 in, by how much, in square

asked by scott on August 23, 2011
34. ## math

Use the following to answer question 7: Point Bread Tractor A 20 0 B 18 1 C 14 2 D 8 3 E 0 4 Refer to the above schedule. Starting at point A, the opportunity cost of producing each successive unit of tractors is: a constant 2 units of bread 8, 6, 4, and 2

asked by Anonymous on April 18, 2014
35. ## Chemistry

Which of the following nitrogen-containing compounds would supply the most nitrogen per gram of fertilizer? a. iron azide, Fe(N3)2, MW = 140 g/mol b. sodium azide, NaN3, MW = 65 g/mol c. potassium nitrite, KNO2, MW = 85.1 g/mol d. potassium azide, KN3, MW

asked by Anonymous on November 8, 2015
36. ## Math for Educators

I am thinking of some #s less than 100. When I divide them by 2 there is a remainder of 1. When I divide them by 3 there is a remainder of 1. When I divide it by 4 there is a remainder of 1. However, when I divide by 5 there is no remainder. what are the

asked by Kelly on June 17, 2013
37. ## Math

Mia goes for a jog every morning. The line plot shows the number of hours she jogged for five days. 2/4=xx 3/4=xx 1=x Number of hours How many total hours did she jog for those five days? possible answer: 5/4; 10/4; 11/4; 14/4 hours.

asked by Student on April 20, 2019
38. ## accounting

What role might an accounting professional play in ethical corporate decision making? Should an accounting professional play a role even when he or she is not the final decision maker? Explain your answer.

asked by Gina on September 9, 2010
39. ## algebra

i have two answers to this problem so am not sure which way I need to do in or should say the order i should do it. lease help??????? problem is 7x-5+3x=6+x-10 what is the order to work this out there is no brackets to this problem 7x-x+3x=6+5-10

asked by Anonymous on April 29, 2007
40. ## physical science

A boy with a mass of 30 kg stands motionless at the end of a diving board 3 m above the floor. The boy has: Answer no energy. kinetic energy only. potential energy only. both kinetic and potential energy.

asked by Allison on September 10, 2011
41. ## math

A gear with 60 teeth is meshed to a gear with 40 teeth. If the larger gear revolves at 20 revolutions per minute, how many revolutions does the smaller gear make in a minute? not just an answer please (A)13 1/3 (B)3 (C)300 (D)120 (E)30

asked by Tomas on August 14, 2013
42. ## American government

Unlike ______, interest groups do not compete for ________office. A. Lobbyist; private B. Lobbyist; public C. Political parties; private D. Political parties; public Is the answer A?

asked by sallie on March 12, 2016
43. ## chemistry

rank these amino acid from most polar to least: His, Phe, Ser, Ile, Asp, Trp i don't think my answer is correct... Ser>Asp>His>Phe>Trp>Ile

asked by Anonymous on October 3, 2013
44. ## physics

A point charge of +4.6 micro-coulombs lies at x = 0 and a point charge of -7.3 micro-coulombs lies at x = +3.3 m. Where on the x axis, is the total electric potential equal to zero? Answer in meters.

asked by Mandaleigh on February 10, 2012
45. ## English

My uncle, along with my cousins, ________ to see my acrobatics recital; I hope they ________ the show. a) plan/enjoy b) plans/enjoy c) plans/enjoys d) plan/enjoys Answer A

asked by Abby on January 8, 2019
46. ## statistics

using the numbers only 0 through 10 only whole numbers with repeats allowed pick four numbers that would have the smallest standard deviation I said four zeros pick four numbers that would have the largest standard deviation I said 0 0 0 10 is there more

asked by statistics on July 28, 2009
47. ## English

Wait so is it: 5. Four years later, Rudolf achieved her greatest personal triumph, three gold medals in a single Olympics. *ANSWER* AP=three gold medals in a single Olympics WM=triumph

asked by Anne on January 9, 2010
48. ## Personal Dimension of Educatio

Select the sentence that has correct subject-verb agreement. 11. Neither my dad nor my siblings want to go to the family reunion this summer. 2. Neither my dad not my siblings wants to go to the family reunion this summer. My answer is 1

asked by Jackie on November 16, 2012
49. ## math?

1.How are the two statements given below related to each other? x: if you run for 10 minutes, then you will raise your heart rate. z: if you do not run for 10 minutes, then you will not raise your heart rate. A) Z is the contrapositive of X. B) Z is the

asked by tim on October 1, 2015
50. ## math

Use the data to answer the question: Favorite Sport to Watch: 25% soccer 33% baseball 42% football If 210 people said football was their favorite sport to watch, how many people were surveyed? Thank you!

asked by Moon and Magic on December 4, 2017
51. ## Math

Did I answer this problem right? A bag contains 13 marbles of which 10 are red. A marble is selected at random and replaced. A second marble is then selected at random. What is the probability that both marbles are red? 100/169. Thanks.

asked by B.B. on August 7, 2009
52. ## Math?

1.How are the two statements given below related to each other? x: if you run for 10 minutes, then you will raise your heart rate. z: if you do not run for 10 minutes, then you will not raise your heart rate. A) Z is the contrapositive of X. B) Z is the

asked by Tim on October 1, 2015
53. ## Math

A pole that is 3.2m tall casts a shadow that is 1.4m long. At the same time, a nearby tower casts a shadow that is 39.5m long. How tall is the tower? Round your answer to the nearest meter.

asked by Michelle on November 14, 2015
54. ## Physics

The velocity of the transverse waves produced by an earthquake is 5.08 km/s, while that of the longitudinal waves is 8.3312 km/s. A seismograph records the arrival of the transverse waves 55.9 s after that of the longitudinal waves. How far away was the

asked by Laura on May 8, 2011
55. ## Math

Alicia’s gross monthly pay is \$1,700. Alicia pays 10.5% of her monthly income in federal withholding. How much federal withholding does she pay? A \$10.50 B \$17.00 C \$161.90 D \$178.50 My Answer: C

asked by Suzy-- Su-Ji on January 20, 2016
56. ## Physics

At one end of the Venturi Tube the pressure and speed of flowing water is 21 kPa and 0.05m/s respectively. At another point the pressure is 5 kPa. Find the speed of the water at the second point. Answer in m/s

asked by Anonymous on May 30, 2016
57. ## math

Using the best-fit line below for prediction, answer the following questions: a) What would you predict the price of Product X in volume of 150 to be (approximately)? b) What would you predict the price of Product X in volume of 100 to be (approximately)?

asked by Jennifer on December 29, 2012
58. ## math

a triangular road sign has a height of 8 feet and a base of 16.5 feet. How much larger in ares is this sign than one with a height of 4 feet and a base of 8.25 feet? Please explain fully and show how you got the answer.

asked by audrey on May 17, 2011
59. ## Language Arts...Writing

Hello, I need some help with the following question. My answer is #1, is this corret? Thank You Find the sentence with the Active Voice? #1 The chairman told me that the legislature passed the bill. #2 I was told by the chairman that the bill was passed by

asked by Mandi on September 7, 2007
60. ## aig math

a factory had 1080 shirts and pants altogether.after donating 60 pants to charity the number of shirts it had was three times the number of pants left.how many pants did the factory have at first/ my answer is 315 am i right,if not please tell me why and

asked by lidia on August 19, 2012
61. ## chemisrty

Could anybody help me with this question "In practice the methanol production process is operated at temperatures of 250 to 300 degrees and at a pressure of 50 to 100 atmosphere (50 to 100 times normal atmospheric pressure) in the presence of a copper

asked by bex on March 12, 2007
62. ## physics (elena)

JUMPING OFF THE GROUND (10 points possible) A person of mass m jumps off the ground. Suppose the person pushes off the ground with a constant force of magnitude F for T seconds. What was the magnitude of the displacement of the center of mass of the person

asked by Anonymous on October 24, 2013
63. ## physics

A 120-V motor has mechanical power output of 3.00 hp. It is 94.0% efficient in converting power that it takes in by electrical transmission into mechanical power. (a) Find the current in the motor. I got the same answers,17.5 A, whether I used round

asked by blast on August 17, 2010
64. ## AP chem

An apparatus consists of a 4 L flask containing nitrogen gas at 32C and 885 kPa, joined by a valve to a 8 L flask containing argon gas at 32 C and 47.5 kPa. The valve is opened and the gases mix. What is the partial pressure of nitrogen after mixing?

asked by Sarah on March 9, 2012
65. ## phsics

A ball is rotating in a horizontal circle at the end of a string of length 3.8 m at an angular velocity of 8.5 rad/s. The string is gradually shortened to 3.3 m without any force being exerted in the direction of the ball’s motion. Find the new angular

asked by owen on November 19, 2014
66. ## Macroeconomics

How would i approach this question? I don't necessarily want an answer. A "how to" would be better. (Simple Spending Multiplier) For each of the following values for the MPC, determine the size of the simple spending multiplier and the total change in real

asked by Lauren on November 14, 2010
67. ## Adult Development and life Assessment

Ken is a successful landscrape designer who an visualize backyard plan and them create it. Ken shows a high degree of 1. bodily kinesthetic intelligence 2. spatial intelligences 3. interpersonal intelligences 4. intrapersonal intelligences My answer is

asked by Regina on November 25, 2012
68. ## Calculus

Graph of a piecewised function is f(x)=1, x>0 and f(x)=-1, x-3 I did the following: My f(x)=1, x>0 graph started from the point (0,1) and extended right infinitely. My (x)=-1, x-3 the limit is undefined. I know the correct answer is lim f(x)=-1 as x-->-3

asked by lania on September 9, 2011
69. ## math- commutative property

My daughter had this question for Hw and wasn't sure the correct answer. the expression was (4 7/8 +3 3/4)+5 1/8 which shows another way to write the expression using only the commutative property of addition A) 4 7/8+(3 3/4 +5 1/8) B)(5 1/8 +4 7/8) +3 3/4

asked by Lis on January 9, 2014
70. ## Chemisry

what mass of protons would be required to just neutralize the charge of 1.0g of electrons? how do I answer this? You know the mass of an electron. Calculate how many are in 1 gram. You will need the same number of protons. Knowing the mass of a proton

asked by Chris on February 8, 2007
71. ## physics- check

1. three point charges, q1, q2, q3, lie along the x-axis at x = 0,3,5, respectively. Calculate the magnitude and direction of the net electric force on q1 if q1 = +6 x 10^-6 C, q2 = +1.5 X 10^-6 C and q3 = -2.0 x 10^-6 C. my answre is 46.8 N to the right.

asked by todi on February 14, 2008
72. ## why doesn't anybody ever help me.

1. three point charges, q1, q2, q3, lie along the x-axis at x = 0,3,5, respectively. Calculate the magnitude and direction of the net electric force on q1 if q1 = +6 x 10^-6 C, q2 = +1.5 X 10^-6 C and q3 = -2.0 x 10^-6 C. my answre is 46.8 N to the right.

asked by todi on February 14, 2008

Manny loves to eat Cajun pizza. Each square inch of pizza is 8 calories. He orders a slice of pizza from a pizza with a diameter of 16 inches that is cut with a central angle of 20 degrees. How many calories does he eat? Answer A. about 89 calories B.

asked by Help me on February 15, 2012
74. ## Physics

A 10 kg block sits on a flat surface whose μs=0.60 and whose μk is 0.40 a. What horizontal force is required to get the block move? b.If we continue to apply the same force as in part a. what will the blocks acceleration be? In the answer: force=.6*mg to

asked by Lianne on August 26, 2012
75. ## chemistry

how to solve for a 28.4 L sample of methane gas is heated from 35.0° C to 76.0° C. The initial pressure of the gas is 1.00 atm at 35.0° C. Assuming constant volume, what is the final pressure of the gas? OK, I did the following: P₁ = 28.4 L P₂ = ?

asked by sandy on November 22, 2011
76. ## Chemistry

Enough of a monoprotic acid is dissolved in water to produce a 0.0195 M solution. The pH of the resulting solution is 6.24. Calculate the Ka for the acid. Also, the answer is not 1.7 * 10 ^ -11 The response is: You treated the initial concentration as 0.

asked by chem1 on April 22, 2012
77. ## Physics

A 4kg block, initially moving due east at 3 m/s, is acted upon by an impulse having magnitude 8Ns and direction due west. Is the final velocity of the block 2m/s west? This is how I came to that answer: v = impluse/mass so 8/4 = 2. Although this is the

asked by sarah on November 10, 2009
78. ## Psychology

The motives studied by Henry Murray and his colleagues are called higher order motives because: Answer a. They reflect motivations for a higher level of functioning. b. They are at a higher level of consciousness than other motives. c. They do not reflect

asked by Annmarie on February 22, 2014
79. ## calculus

A car leaves an intersection traveling east. Its position t sec later is given by x = t2 + t ft. At the same time, another car leaves the same intersection heading north, traveling y = t2 + 3t ft in t sec. Find the rate at which the distance between the

asked by sal on October 19, 2011
80. ## physics

Raul pushes a stalled car with a force of 204 N. If the required force decreases at a constant rate from 204 N to 44.0 N for a distance of 16.3 m in 16.0 s, calculate the average power required to move the car. 204-44=160 160*16.3/16 2608/16 answer: 163 W

asked by Jon on April 3, 2008

find the two ordered pairs of this equation. y=5/3x+8 then give the slope and y intercept. I know the slope is rise over run and is the y intercept 8? This is the answer I got but I am still really confused how do I get my two ordered pairs this makes no

asked by KiKi on March 28, 2010

A history class is comprised of 6 female and 9 male students. If the instructor of the class randomly chooses 5 students from the class for an oral exam, what is the probability that 2 female students and 3 male students will be selected? Round your answer

asked by Jonathan on August 30, 2016
83. ## College Chemistry

For the reaction that occurs in the voltaic cell Fe(s)|Fe2+(aq)||Cr3+(aq),Cr2+(aq)|Pt(s) use data from Appendix D in the textbook to answer the following questions: a)Determine the equation for the cell reaction b)Determine E0 cell c)Determine ΔG0

asked by Brandon on May 17, 2015
84. ## 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

asked by schoolfreak on November 2, 2011
85. ## physics

JUMPING OFF THE GROUND (10 points possible) A person of mass m jumps off the ground. Suppose the person pushes off the ground with a constant force of magnitude F for T seconds. What was the magnitude of the displacement of the center of mass of the person

asked by Anonymous on October 25, 2013
86. ## Chemistry

To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 2.7L bulb, then filled it with the gas at 1.30 atm and 30.0 C and weighed it again. The difference in mass was 3.9 g. Identify the gas. I used Pv=nRT

asked by Kasey on July 1, 2012
87. ## math

The 3rd term of a geometric progression is nine times the 1st term.if the 2nd term is one twenty fourth the 5th term.find the 4th term.(there is a mistake in the 2nd to the last statement.help locate the mistake{final answer 4th term =48).i solved to this

asked by james on November 28, 2014
88. ## Psychology

The motives studied by Henry Murray and his colleagues are called higher order motives because: Answer a. They reflect motivations for a higher level of functioning. b. They are at a higher level of consciousness than other motives. c. They do not reflect

asked by Annmarie on February 22, 2014
89. ## math

Atmospheric pressure V decreases as altitude h increases. At a temperature of the pressure is 101.1kilopascals kPa at sea level, 86.4 kPa at h = 1 km, and 77.1 kPa at h = 2 km. Use a linear approximation to estimate the atmospheric pressure at an altitude

asked by Tina on March 30, 2007
90. ## first year chem

There are two naturally occurring isotopes of chlorine with ratios of 76% and 24%. One mole of PCl3 is made using a sample of isotopically pure chlorine gas (containing only one of the two isotopes). The product weighs 142 g. If chlorine gas containing the

asked by John on December 5, 2013
91. ## Physics

A point charge Q1=-2µC is located at x=0, and a point charge Q2=-8µC is placed at on the x -axis of a cartesian coordinate system.The goal of this problem is to determine the electric field,E(x)=E(x)x^ , at various points along the -axis. (a)What is E(x)

asked by Anonymous on February 25, 2013
92. ## Calculus

A particle starts at the point (5,0) at t=0 and moves along the x-axis in such a way that at time t>0 its velocity v(t) is given by v(t)= t/(1+t^2). a). Determine the maximum velocity of the particle. Justify your answer. b). Determine the position of the

asked by Rasheda on January 29, 2014
93. ## math- Trigonometry

If cos degree equals to 0.8641  What is Sin degree?  I have no idea how to find this.  Please help me. I got help from two people, but I'm not getting the answer and how they got the numbers either. Someone says: cos^2+sin^2=1

asked by Simran on November 5, 2016
94. ## physics repost

Raul pushes a stalled car with a force of 204 N. If the required force decreases at a constant rate from 204 N to 44.0 N for a distance of 16.3 m in 16.0 s, calculate the average power required to move the car. 204-44=160 160*16.3/16 2608/16 answer: 163 W

asked by Jon on April 4, 2008
95. ## HMO

Please check my answer thank you You belong to an HMO By paying the HMO premium and being treated through the HMO you're helping to 1 provide more managed care options for enrollees 2. control plan costs for everyone 3. decrease managed care costs 4.

asked by Israel on January 19, 2008
96. ## Math

A biased coin lands heads with probabilty 2/3. The coin is tossed 3 times a) Given that there was at least one head in the three tosses, what is the probability that there were at least two heads? b) use your answer in a) to find the probability that there

asked by Steve on June 11, 2018
97. ## English

Indicate where each aspect of an index card should be placed when researching. Match the letter that corresponds to one of the items below to the correct location (1, 2, 3, 4, or 5) on an index card A.) Page number B.) Title of card (aspect of subject) C.)

asked by Cassie on April 21, 2014
98. ## algebra

simplify: sqrt (121/9) a) 11/3 b) sqrt (11/3) c) sqrt(11 / sqrt 3) d)3 sqrt (11) a is the answer

asked by anthony on June 24, 2010
99. ## College Discrete

An urn contains n > 0 white balls and m > 0 black balls. Consider the experiment where two balls are drawn without replacement. What is the probability that the balls are of the same color? What is the probability of this event, if the balls are drawn with

asked by Anonymous on October 16, 2012
100. ## English

true and false question are called Rejective Objective Dejective Subjective I think it's dejective Objective exams , subjective test contain More question Harder question Fewer question No good answer I think it's more question

asked by Linda on May 19, 2015