# Questions Asked onOctober 15, 2007

1. ## CHEM

My balanced equation is: a) 2C8H18(g) + 25O2(g) -> 16CO2(g) + 18H2O(g) b) 0.290 mol of octane is allowed to react with 0.670mol of oxygen. Which is the limiting reactant? (((Which I found Oxygen to be the limiting reactant.))) I do not understant how to

2. ## science

a 13 ohm resister has 0.050 A of current in it. What is the potential difference across the resistor?

3. ## Physics

Suppose that a police car on the highway is moving to the right at 20 m/s, while a speeder is coming up from almost directly behind at a speed of 31 m/s, both speeds being with respect to the ground. The police officer aims a radar gun at the speeder.

4. ## CHEM

A scientist wants to make a solution of tribasic sodium phosphate,Na3PO4 , for a laboratory experiment. How many grams of Na3PO4 will be needed to produce 575mL of a solution that has a concentration of Na^+ ions of 1.40 M? Answer: mass of Na3PO4 = _____

5. ## HUMANITIES

WHAT ARE SOME REPUTABLE SITE THAT CAN AID IN HELPING ME FIND THE ANSWER TO THIS QUESTION: WHAT MAKES UP THE HINDU RELIGION AND THE CULTURAL, SOCIETAL INFULENCES THAT MADE HINDUSIM VITAL TO REGION OF EARTHLY EXISTENCE.

6. ## physics

Two railroad cars, each of mass 6500kg and traveling 95km/h, collide head-on and come to rest. How much thermal energy is produced in this collision?

7. ## English

When writing a literature essay about the bible, do you write in past or present tense?

8. ## Chemistry

Before 1982 U.S pennies were made of solid copper. As the price of copper rose,the U.S mint switched to a composition that is 97.5% zinc and 2.5% copper. A penny minted after 1982 is 19 mm in diameter and 1.6 mm thick. What is the volume of a penny in mL?

9. ## ap algebra

Please help me with this problem. I don't know what to do. Use the graph or table to determine a solution of the equation. Use synthetic division to verify that this number is a solution of the equation. Then solve the polynomial equation. x3 + 6x2 + 11x +

10. ## math

can you check my answers please. Use the Leading Coefficient Test to determine the end behavior of the polynomial function. f(x) = 4x^4 + 5x^3 + 2x^2 + 4x - 3 i got that it rises to the left and rises to the right f(x) = -5x^4 - 2x^3 - 4x^2 - 4x + 2 i got

11. ## Algebra

Please check my work. thanxs! Use the Leading Coefficient Test to determine the end behavior of the polynomial function. Then use this end behavior to match the function with its graph. f(x) = 2x^2 - 2x - 2 -I got that is rises to the left and rises to the

12. ## Algebra

Please check my answers. Find the coordinates of the vertex for the parabola defined by the given quadratic function. 1.f(x) = (x - 4)2 - 4 -I got (4,-4) Find the axis of symmetry of the parabola defined by the given quadratic function. 3.f(x) = (x + 2)2 +

13. ## Physics

You are sitting in your car at a traffic light at the foot of a 200 ft long ramp that will take you onto the interstate. If your cat can at best accelerate at 5 m/s^2 and the traffic on the interstate is moving at 65mph. will the ramp be long enough for

14. ## physics

A car is moving with constant acceleration. Which of the following is true? a) the car travels the same distance in each second b) car's velocity increases by the same amount in each second c)car's velocity decreases by the same amount in each second

15. ## physics

Which of the following statements is not true? a)the horizontal component of velocity cannot be larger than the total velocity b)the vertical component of velocity cannot be larger than the total velocity c)Neither horizontal nor vertical components of

16. ## PHYSICS

A ball on a string moves in a vertical circle. When the ball is at its lowest point, the tension in the string is equal to the ball's weight. (i said true..?) A small projectile is launched horizontally 1 m above the surface of a smooth, airless planet,

17. ## Math - Algebra

A 'snooker' table (measuring 8 metres by 4m) with 4 'pockets' (measuring 0.5m and placed at diagonal slants in all 4 corners) contains 10 balls (each with a diameter of 0.25m) placed at the following coords: 2m,1m...(white ball) ...and red balls...

18. ## microeconomics

Explain: Before economic growth, there were too few goods, after growth, there is too little time. It is irrational for an individual to take the time to be completely rational in economic decision making. Telling Satnt what you want for Christmas makes

19. ## science-plz help, this is urgent!plz!

we did a lab on chemical change, where we had to see how a chemical change affcts mass. so we measure the mass of 20ml of copper solution, and 2cm(cubed) of steel wool, and then we mixed them into a flask. soon the steel wool turned rusy, and broke apart.

20. ## science-plz help, this is urgent!plz!

we did a lab on chemical change, where we had to see how a chemical change affcts mass. so we measure the mass of 20ml of copper solution, and 2cm(cubed) of steel wool, and then we mixed them into a flask. soon the steel wool turned rusy, and broke apart.

21. ## science/chemistry

we did a lab on chemical change, where we had to see how a chemical change affcts mass. so we measure the mass of 20ml of copper solution, and 2cm(cubed) of steel wool, and then we mixed them into a flask. soon the steel wool turned rusy, and broke apart.

22. ## i reallry need help plz-science

we did a lab on chemical change, where we had to see how a chemical change affcts mass. so we measure the mass of 20ml of copper solution, and 2cm(cubed) of steel wool, and then we mixed them into a flask. soon the steel wool turned rusy, and broke apart.

23. ## AP US History

Why does the period of salutary neglect end in the American colonies?

24. ## Chemistry

"There are two ions per formula unit in this compound. The -1 anion has 8 more electrons than the cation." I need to find the Chemical formula/name. Any suggestions on how to start? This can have more than one correct answer.

25. ## graphing polynomial functions

How do i graph f(x)4x-x^3-x^5? How do I graph f(x)=x^5-4x^3-12x?

26. ## math

Explain how to identify the greatest and least values of a set of data when looking at a circle graph.

27. ## math

With a confidence level of .95 and a confident interval of 5 and a population of 20,000 what is the sample size? With a confidence level of .99 and a confident interval of 5 and a population of 20,000 what is the sample size? Finally, using the sample size

28. ## CHEM

I am still not quite grasping how to complete this problem: Posted by K on Sunday, October 14, 2007 at 6:43pm. Many home barbeques are fueled with propane gas C3H8. What mass of carbon dioxide (in kg) is produced upon the complete combustion of 18.9L of

29. ## problem stats

an instant lottery game gives you probability .02 of winning on any one play. Plays are indpendent of each other. If you play 5 times, what is the probability that you win at least once.

30. ## Chemistry

Propose a method for determining the specific heat for a metal like sodium, which reacts with water.

31. ## science

Hello, need help finding this answer for this question? Why are mudslides mainly limited to dry environments? Thanks

32. ## Algebra

7.(21x^3 - 7)/(3x - 1)(this one I cant get the anwswer to match up with my answer choices.) Is there a way that I could use syntheic division?

33. ## world history

Describe the economic, political, social, and cultural problems faced by the new nations of Africa?

34. ## ap algebra

Can you please help me with these problems I don't understand them? thanxs! Find the zeros for the polynomial function and give the multiplicity for each zero. State whether the graph crosses the x-axis or touches the x-axis and turns around, at each zero.

35. ## Algebra Problems

Please check my answers. Find the coordinates of the vertex for the parabola defined by the given quadratic function. 1.f(x) = (x - 4)2 - 4 -I got (4,-4) Find the axis of symmetry of the parabola defined by the given quadratic function. 3.f(x) = (x + 2)2 +

36. ## algebra

(21x^3 - 7)/(3x - 1)(this one I cant get the anwswer to match up with my answer choices.) Is there a way that I could use syntheic division?

37. ## chemistry

A 2.3g sample of MgX is reacted with NaOH. The Mg(OH)2 precipitate had a mass of 1.8g. What is the % of Mg in the original sample?

38. ## Macro Economics

How to explain how employers use the cost-benefit principle to decide whether to hir an addtional worker

39. ## chemistry

Determine a compound that will precipitate the (Hg2)^2+ in Hg2X2(soluble).

40. ## CHEM

How many molecules of ammonia are produced from: 2.58x10^-4g of Hydrogen? My balanced equation: 3H2 + N2 = 2NH3 I worked this question as: mol of H = 2.58x10^-4g/1.00794g/mol= 2.559676x10^-4 mol mol of NH3 produced = 2x2.559676x10^-4mol/3mol NH3 =

41. ## math

there are________centemeters in a meter

42. ## Biology/General

Why do sweet and greasy foods taste so good to us? What are some properties of DNA that make it well-suited for storage of genetic information? Why does eating excess carbohydrates cause you to gain fat? The Irish survived for generations by eating

43. ## college class

If someone made the below statements to you, how would you explain that the statements are misconceptions? Include whether you think most Americans believe these misconceptions, and why or why not. · Asian Americans and Pacific Islanders are a model

44. ## science-elements

what is the answer to this equation on elements because i just don't get it. hydrogen + __________ = water+heat

45. ## college class

Consider these questions: What are the most significant similarities between the Chinese American and Japanese American [cultural] experiences? What are the differences? Choose from any of the following topics when considering similarities and differences:

46. ## Math

Find a way to add the digits 0-100 rather than adding them. Any suggestions on how to do this?

47. ## Physics/Barycentre

I read the Earth/Moon Barycentre is located 74/100ths from the centre of the earth towards the earths surface. As the moons orbit varies from Perigee to Apogee by more than 30,000 miles I would have thought the Barycentre would move around according to the

48. ## Math

Can you please check my answers. Determine whether the function is a polynomial function. f(x) = 4x + 4x^5 -Yes f(x) = 4 - 1/x^2 -No

n tomatoes, red fruit is dominant to yellow fruit color. A farmer has plants that produce either red or yellow tomatoes. he has signed a contract with a large seed company to provide pure red seeds and pure yellow seeds. the do not want hybrids. How can

50. ## PHYSICS

Given: x+(1/x)= square root of 3 PROVE: (x^13)+(1/(x^13))= square root of 3

51. ## Algebra

Two more Algebra questions : Having some difficulty with these. Drawing a blank on this one, not sure where to start. Find the equation, in standard form, with all integer coefficients, of the line perpendicular to x + 3y = 12 and passing through (9, -5).

52. ## physics

when lightning strikes you can see it at a speed of 3x10^8m/s. But you hear thunder at about 340m/s in 70 degrees air temperature. a) If you are a mile away from lightning, how long of a delay is there? b) if the delay between the lightning and thunder

53. ## social

what is an oasis

54. ## speech

A diller, A dollar, A ten o'clock scholar, what makes you come so soon? You used to come at ten o'clock, But now you come at noon.

55. ## French

Vous prenez la rue de Vaugirard a(with the accent) gauche jusqu'au boulevard Saint-Germain. Does it mean to take the road of Vaugirard and turn right on boulevard Saint-Germain or take the road Vaugirard which is on the right until you reach Saint-Germain?

56. ## ap algebra

can you check my answers please? Find the zeros for the polynomial function and give the multiplicity for each zero. State whether the graph crosses the x-axis or touches the x-axis and turns around, at each zero. f(x) = 2(x - 2)(x + 4)^4 2, multiplicity

57. ## Health, Psychology-Depression question

I am doing a report about depression and I was looking for opinions. Do you believe depression is curable without prescription drugs?(can certain foods help, can depression just go away, etc. )I know some people do not want to take prescription drugs for

58. ## CALCULUS

I got this problem but its unrelated to any material that we worked on. Can some please help me to solve it and please explain it. Thanks Problem states: Given: x+(1/x)= square root of 3 PROVE: (x^13)+(1/(x^13))= square root of 3

59. ## physics

A car is moving with constant velocity. Which of the following is true? a) the car travels the same distance in each second b) car's velocity increases by the same amount in each second c)car's velocity decreases by the same amount in each second d)car's

60. ## Math

There are three landscapers that are instructed to prune a tree. One of them alone can complete the task in 30 minutes, another is twice as fast as the first landscaper, and the thrid is a quarter as fast as the first two landscapers working together.

61. ## physics

Will check my work and help me with the last two problems please? A 4 kg ball has a momentum of 12 kg m/s. What is the ball's speed? -(12 kg/m/s) / 4kg=3m/s A ball is moving at 4 m/s and has a momentum of 48 kg m/s. What is the ball's mass? -(48kg/m/s) /

62. ## physics

what distance should you keep between you and the car in front of you if the traffic is moving at 65mph? Your reaction time is 1s, and both the cars can decelerate at the same rate. Include reasonable estimate for the length of the car (you don't want your

63. ## ETH 125

Consider these questions: What are the most significant similarities between the Chinese American and Japanese American [cultural] experiences? What are the differences? Choose from any of the following topics when considering similarities and differences:

64. ## ETH 125

If someone made the below statements to you, how would you explain that the statements are misconceptions? Include whether you think most Americans believe these misconceptions, and why or why not. · Asian Americans and Pacific Islanders are a model

please could somebody give me any real life examples of comapanys that lease assets... thank you!

66. ## Physics

An industrial laser is used to burn a hole through a piece of metal. The average density of the light is S = 1.22 109 W/m2. What is the rms value of each of the following fields in the electromagnetic wave emitted by the laser? (a) the electric field

67. ## socials

what makes an oasis an oasis?

68. ## algebra

could you help me with the following,I don't understand. Find the x-intercepts of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. 1.f(x) = (x + 1)(x - 3)(x - 1)^2 5.f(x) = x4 -

69. ## features of all acids

describe one feature of all acids

70. ## Algebra

Checking a few answers to some algebra problems: 1.Find the slope of the line that passes through the points (-4,1) and (3,5). I got m = 5-1 / 3-(4) Answer is m = 4/7 2.Find the equation, in slope-intercept form, of the line that passes through the points

71. ## Functions in Math

Im looking at internet sites and Im not quite understanding functions. I have a question like; A function f(x) has the properties i) f(1) = 1 ii) f(2x) = 4f(x)+6 Could you help me out. I know nothing about functions.

72. ## polynomial function

Please check my answers. Find the y-intercept of the polynomial function. f(x) = -x2 - 2x + 8 I got:y=8 f(x) = (x + 1)(x - 6)(x - 1)2 I got: y=-6 f(x) = -x2(x + 6)(x2 - 1) I got:y=0

73. ## Language Arts

I am in a verse chior group for oral language and I need an oral language peice that is up to 8th grade reading level. Any ideas?

74. ## Algebra

a cessna can fly at a rate of 220 mph in calm air. traveling with the wind, the cessna flew 780 mi in the same amount of time as it flew 540 mi against the wind. find the rate of the wind. how do i set this problem up? please explain in detail cuz i don't

75. ## Alegrba

Please check my answers. Also, can I see some graphs of y-axis symmetry, orgin of symmetry, or neither? Determine whether the graph of the polynomial has y-axis symmetry, origin symmetry, or neither. f(x) = 4x^2 - x^3 -My answer: orgin of symmetry f(x) = 5

76. ## Math

can someone please tell me how to solve problems like this>>>> 3/4q -7=8 3/4 is a fraction Thanks for helping me

77. ## algebra

simplify (numbers AFTER the variable represent exponents) ALSO these are all fractions, theres just no way to put the line x2-64 . x2-x-6 _ 1 x2-4x-12 x2+5x-24 x-6

78. ## polynomial functioms-check

Can you please check my work and answers. Find the x-intercepts of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. 1.f(x) = (x + 1)(x - 3)(x - 1)^2 -I got -1 crosses the

79. ## Algebra

Solve the problem. A rectangle with width 2x + 5 inches has an area of 2x4 + 9x3 - 12x2 - 79x - 60 square inches. Write a polynomial that represents its length. I got x^3+2x^2-11x-12 inches. is this correct? I used long division.

80. ## microeconomics

Strictly speaking, perfect competition has never existed and probably never will. Then why study it? Discuss the major barriers to entering into an industry. Explain how each barrier can foster either monolopy or oligopoly. which barrier, if any, do you

81. ## microeconomics

Why do oligopolies exist? list five or six oligopoists whos products are owned or regurlarly purchased. What distinguishes an oligopoly from monopolistic competition. Explain why monopoistically copetitive firms frequently perfer non-price competition to

82. ## science, biology

garden squash plants produce white or yelloe squash. White color is dominant while yellow is recessice. A squash plant that is homozygous for white is crossed with a homozygous yellow one. Predict the phenotype of the F1 generation (first generation) and

I have to do a cross-word puzzle, but I'm not sure about the answer to one of them. It is a 9 letter word (in Spanish), and fits into this sentence: Donde _____ (tu)esos sueteres nuevos? Plese help!

84. ## chemistry

Explain what subatomic particles mke up an atom and how are they arranged

85. ## physics

what distance should you keep between you and the car in front of you if the traffic is moving at 65mph? Your reaction time is 1s, and both the cars can decelerate at the same rate. Include reasonable estimate for the length of the car (you don't want your

86. ## spanish

I have another question on the spanish crossword puzzle. the question is: La madre siempre va a la ____ cuando compra zapatos para sus hijos. What does this mean? I can't figure it out. Please help me.

87. ## physics

Can an object's velocity change direction when its acceleration is constant? a) No this is not possible because it is always speeding up b) No this is not possible because it is always speeding up or always slowing down, but it can never turn around c) Yes

88. ## ETH 125

The final project for ETH 125 is a 1,400- to 1,750-word autobiographical research paper on race in your community. Where do you suggest I start looking things up at? Help me please

89. ## Another niology/science question

In tomatoes, red fruit is dominant to yellow fruit color. A farmer has plants that produce either red or yellow tomatoes. he has signed a contract with a large seed company to provide pure red dees and pure yellow seeds. the do not want hybrids. How can

90. ## MATH

I need help with this; There are 100 floors on a building. 50 are painted red and 50 and painted blue. The number of red floors on the top half plus the number of blue floors on the bottom half are equal to 56. How many red floors are there on the top

today has been very hectic along with homework i found out about 3 tests that i have tommorrow. I have to study for all three of the tests. The first is biology, second, is business law, and third it in Algebra II, and for homework I have to read 10 pages

asked by Stressed Out in MO
92. ## chem

A 0.01205 mg sample of an unknown compound was found to contain 0.0001 mg of H, 0.0043 mg of Cl, and 0.0077 mg of O. It was also determined that the unknown compound had a molecular weight of 100.46 g/mol. What is the molecular formula for this compound?

Please check my work. thanxs! Use the Leading Coefficient Test to determine the end behavior of the polynomial function. Then use this end behavior to match the function with its graph. f(x) = 2x^2 - 2x - 2 -I got that is rises to the left and rises to the

94. ## Cell Biology

What organelle does Phalloidin stain? I know it stains actin and the cytoskeleton but these are not organelles.

95. ## Algebra

Still need help on this one Drawing a blank on this one, not sure where to start. Find the equation, in standard form, with all integer coefficients, of the line perpendicular to x + 3y = 12 and passing through (9, -5).

96. ## SAT Math... again

I asked two questions yesterday, and thankfully, bobpursley answered the latter. I accidentally typed in the first question wrong, so I'd really appreciate it if someone helps me out. Thank you, and have a good day :) 1. Kevin is 3 years younger than Nora.

97. ## Math

For my class my topic is circles but i need a catchy phrase or slogan or anything that rhymes with circle to remember circle by. can anyone help me please PLEASE PLEASE!!! thank you

98. ## Algebra

According to the Guiness Book of World Records, the peregrine falcon has a record diving speed of 168 miles per hour. Write the speed in feet per second.

99. ## US History

Why did New England seem to be the root of the rebellion against taxes and other regulations?

100. ## Language Arts

I need to find out when author Bill Gutman was born. I have searched everywhere but have come up with nothing. My project is due in 3 days please help me.

101. ## math

can you check my answers please. Use the Leading Coefficient Test to determine the end behavior of the polynomial function. f(x) = 4x^4 + 5x^3 + 2x^2 + 4x - 3 i got that it rises to the left and rises to the right f(x) = -5x^4 - 2x^3 - 4x^2 - 4x + 2 i got

102. ## CHEM

Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction: 2Al(s) + 3Cl2(g) -> 2AlCl3(s) You are given 19.0g of aluminum and 24.0g of chlorine gas. a)If you had excess chlorine, how many moles of of aluminum chloride could be

103. ## Social Studies

Which two states each border eight other states, including each other?

104. ## spanish

i need help with this fill in the blank... cuanto____ por los calcetines amarillos? the blank has 7 letters and is like this: ca-a--e i am missing those 3 letters. PLEASE HELP!

105. ## science

Which plan would grow faster, a plant inside or outside?

106. ## AP PHYSICS..so lost

An elevator and its load have a combined mass of 1550 kg. Find the tension in the supporting cable in Newtons when the elevator , originally moving downward at 11 m/s, is brought to rest with constant acceleration in a distance of 43 m.

107. ## ap algebra

Can you please help me with these problems I don't understand them? thanxs! Find the zeros for the polynomial function and give the multiplicity for each zero. State whether the graph crosses the x-axis or touches the x-axis and turns around, at each zero.

108. ## Math

need help with this; There are 50 floors on a building. 25 are painted red and 25 and painted blue. The number of red floors on the top half plus the number of blue floors on the bottom half are equal to 28. How many red floors are there on the top half?

109. ## Algebra help!

I don't understand my problems that I am suppose to do. please help. Write the equation of a polynomial function with the given characteristics. Use a leading coefficient of 1 or -1 and make the degree of the function as small as possible. 1.Crosses the

110. ## problem stats

an instant lottery game gives you probability .02 of winning on any one play. Plays are indpendent of each other. If you play 5 times, what is the probability that you win at least once.

111. ## Algebra-please check my work

check my answers please. Use the Intermediate Value Theorem to determine whether the polynomial function has a real zero between the given integers. f(x) = 2x3 + 10x2 - 8x - 5; between 1 and 2 -I got: f(1)=1 and f(2)=35;no Determine the maximum possible

112. ## math

wat is probability

113. ## physics

A football is kicked at 37degrees to the horizontal and it goes a distance of 98 yd. Ignore air resistance. a) what is the ball’s initial velocity? b) what is the vertical component of the ball’s velocity? c) what is the horizontal component of the

114. ## Long and synthetic division

please check my answers and help me with the last one please, I cant get it to come out right. Divide using long division or synthetic division. 2.(x^2 + 13x + 40)/ (x + 5) I got x + 8 5. 3m^3+7m^2-16m+16/ m+4 i got 3m^2-5m+4 7.(21x^3 - 7)/(3x - 1)(this

115. ## Science

What are the 5 characteristics of all living things? What do all living things need?

116. ## CALCULUS

Given: x+(1/x)= square root of 3 PROVE: (x^13)+(1/(x^13))= square root of 3

117. ## chem

mass of element = 311.1269 amu what is mass of 1.36 moles of these atoms in g Hint: (1 mol = 6.022 x 1023 atoms) and (1 amu = 1.6606 x 10-24 g) HELP!

118. ## Algebra

please help me with this question and check my answers. Solve the problem. A rectangle with width 2x + 5 inches has an area of 2x4 + 9x3 - 12x2 - 79x - 60 square inches. Write a polynomial that represents its length. ( I don't know how to solve this

119. ## math

what is 8 tenths indecimal form?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

120. ## Algebra

Two more Algebra questions : Drawing a blank on this one, not sure where to start. Find the equation, in standard form, with all integer coefficients, of the line perpendicular to x + 3y = 12 and passing through (9, -5). I have half a solution to this one:

121. ## math

what is 800 hundreths in decimal form

122. ## Biology

A young post-doctoral fellow was assigned the task of investigating the mechanism by which epinephrine stimulates the activation of adenylate cyclase. The post-doctoral fellow developed an in vitro assay utilizing isolated liver cells, which when

123. ## math

what is 800 thounds in decimal form?

124. ## math

If Jenny built a triangle out of soup cans and there are 4 at the top row she added 2 cans to every next row so there are 8 cans in the second row. How many cans are in the 12th row?

125. ## math

Given: x+(1/x)= square root of 3 PROVE: (x^13)+(1/(x^13))= square root of 3

126. ## biology

In tomatoes, red fruit is dominant to yellow fruit color. A farmer has plants that produce either red or yellow tomatoes. he has signed a contract with a large seed company to provide pure red dees and pure yellow seeds. the do not want hybrids. How can

128. ## Physics

A stone is thrown vertically upward. On its way up it passes point A with speed v, and point B, 12.6 m higher than A, with speed v/2. Calculate the maximum height reached by the stone above point B. I am still stuck on this problem, mainly because I can't

129. ## Physics

what distance should you keep between you and the car in front of you if the traffic is moving at 65mph? Your reaction time is 1s, and both the cars can decelerate at the same rate. Include reasonable estimate for the length of the car (you don't want your

130. ## Algebra

an amtrak trainand a car leave new york city at 2 PM and head for a town 300 miles away. the rate of the amtrak train is 1 1/2 times the rate of the car. the train arrives 2h ahead of the car, find the rate of the car

131. ## social study

Give two serious disadvantages suffered by the Patriots?

132. ## social study

How did the location of the war help the Americans?

133. ## biology

Ionophores are drugs that act as channels in membranes. Each ionophore has its own specificity with regard to the type of ion that will pass through it. The selected ion is able to move across the membrane in either direction, depending only upon the

134. ## Calculus

Can anybody help me with this? Consider the surface xyz = 20. A. Find the unit normal vector to the surface at the point (1, 4, 5) with positive first coordinate. (___,___,___) B. Find the equation of the tangent plane to the surface at the given point.

135. ## biology

Extremophiles are organisms that thrive in extreme environments. For instance some species of bacteria live in the thermal vents of Yellowstone National Park while others live in the polar ice caps. As you might imagine, these bacteria have some rather

136. ## biology

The conversion of molecule S to product P has a Keq = 2.0. Two different, but related enzymes, A and B, can catalyze the reaction. The product P serves as an allosteric inhibitor of enzyme B, but not of enzyme A. A. 10 mM S is placed into three separate

137. ## social study

Why were enslaved African Americans barred from enlisting in the war?

This is data collected.. Solute: Bowman's Capsule, Glomerus, Loop of Henle, Collecting Duct protein: 0, 0.8, 0, 0 urea: 0.05, 0.05, 1.50, 2.00 glucose: 0.10, no data, 0, 0 chloride: 0.37, no data, no data, 0.6 ammonia: 0.0001, 0.0001, 0.0001, 0.04

139. ## biology

What happens when two molecules in a polysaccharide split apart? What is this process called? What enivornment do polysaccharides need to be in to perform this reaction? What is the ratio of C:H:O in sucrose?

140. ## Calculus

22. Divide the expression before differentiating. F(x) = (8x^3 - 1)/ (2x - 1) Would the way to solve this problem be... F(x) = [(8x^3) / (2x - 1)] - [(1)/(2x - 1)] = [(4x^2)/(1)] - [(1) / (2x - 1)] = (4x^2) - (2x-1)^-1 F'(x) = (8x + 1)

141. ## math

why is the product of two odd functions even?

142. ## physics

It takes you 5 hrs to climb the top of a peak. The altitude of the peak is 400m, and you started from your camp that is an altitude of 300m. Estimate your power output during the climb. First i found that you move 1000m in 5 hrs, which would be .0556m/sec.

143. ## Physical Science

Explain Why charged particles do not penetrate matter deeply

144. ## physics

Your horse is pulling a rope that is used to lift a bale of hay. The bale has a mass of 30 kg. Your horse has a max power output of 746 W. How fast can the horse lift the bale. I am completely lost. could someone possibly help me with where to start.

145. ## biology

What is the revelence in the order of development of the foetal nervous system before the cardiovascular system?

146. ## Biology

Explain why mitosis can occur in a haploid cell, but meiosis can’t.

147. ## Math

What is the "partial sums method"

148. ## Biology

Explain why mitosis can occur in a haploid cell, but meiosis can’t.

149. ## social studies

What were the mummy-shaped figures that worked in the afterlife's fields for the mummy called?

150. ## chemistry

What is the valency of selenium in five membered ring system?

151. ## Physics

I studied the equation of time recently and understand the Earths keplerian orbit is responsible for it. I understand the keplerian orbit described the Earths elliptical path and it was this alone that created the equation of time. I have just read that

152. ## english

I can't think of a sentence that has the word 'scruple' (as in "Dear me," said the general, quite unruffled, "again that unpleasant word. But I think I can show you that your scruples are quite ill founded.") -thanks

153. ## CHEM

For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4Al(s) + 3O2(g) -> 2Al2O3(s) 4mol Al, 2.6mol O2? a) 4mol Al, b) 2.6mol O2. I seriously have no idea what they are asking! What do you do with the

154. ## Math

how do i find the least common denominater?

155. ## math

86-78-1x4x2x6/54 i don't see how it works!

156. ## Physics

I am having some problems trying to figure this out. Series circuits I have a "d" battery, a battery holder, 3 different resistors, and a multimeter. How do I put the resistors into a series cicuit? And when I use the multimeter, does it need to be set on

157. ## CHEM

Calculate the mass (in grams) of the product formed when 10.1g of the underlined reactant completely reacts. Assume that there is more than enough of the other reactant. 2K(s) + __Cl2(g)__ -> 2KCl(s) I cannot get the correct answer.

158. ## Chemistry

Propose a method for determining the specific heat for a metal like sodium, which reacts with water.

159. ## gov

Does anyone know a website that has an in-depth analysis on the movie the patriot?

160. ## math

an ________ is a number sentences that uses an equal sign to show that 2 amounts are equal.

161. ## social studies

whats one way the earths crust change??

162. ## Social Studies

What are the 3 Climate Zones?

163. ## Chemistry

Is it possible to attach a picture to my question? I've run across a picture of a piece of chemistry equipment and I'd like to know what it is. Sheryl

164. ## Government

For my class I have to have a good spy story. Basically one that got caught. I have found some but my classmates got to the teacher before me. does anyone know of any good sites that I could use

165. ## writing

i need to wrie a paper on this: Imagine you found an island and you're going to make a government, what type of government would u choose? I chose monarch. I just need to know any other way to write it besides a journal entry or en essay.

166. ## Literature-King Arthur

I posted a question before about the movie Excalibur. I am supposed to watch this movie and make a powerpoint presentation illustrating one of the Arthurian legends. I need to know if Excalibur is a cartoon or if it is a rated R movie. I have found two

167. ## economics

Suppose a firm produces output using the technology Q=K1/3 L2/3 Find a. The long run cost function b. The short run cost function if capital is stuck at 10 units. c. The profit maximizing level of output as a function of the price of the good, wages,