1. Physics

A stroboscope is a light that flashes on and off at a constant rate. It can be used to illuminate a rotating object, and if the flashing rate is adjusted properly, the object can be made to appear stationary. (a) What is the shortest time between flashes

2. physics repost

A player kicks a football with an initial velocity of 3.00 m/s at an angle of 60.0 above the horizontal. What is the horizontal distance traveled by the football? 2(3.00)(cos60)/9.80 (3.00)(cos60)(.530219635) 0.795m ___________________________________ "The

3. physics repost

A marksman at rest fires a 4.00-kg gun that expels a bullet of mass 0.0140 kg with a velocity of 181 m/s. The marksman's mass is 81.0 kg. What is the marksman's velocity after firing the gun? mc = 85kg md = 0.0140 -(0.0140)(-181)/85 = .0298 m/s

4. chemistry

The Ksp of Ag2CrO4(s) is 1.12 x 10^-12. Calculate the molar solubility of AgCrO4(s) a) in pure water b)in a solution of 0.10 mol/L sodium chromate, Na2CrO4(s)

5. Physics

Suppose you are hiking down the Grand Canyon. At the top, the temperature early in the morning is a cool 1°C. By late afternoon, the temperature at the bottom of the canyon has warmed to a sweltering 37°C. (a) What is the difference between the higher

6. physics repost

Venus has radius 6.05 x 10^6 m and mass 4.87 x 10^24 kg. Calculate the value of acceleration due to gravity on Venus's surface. don't know this one

i have no idea! The real estate assessor for a country government wants to study various characteristics of single family houses in the country. A random sample of 70 houses reveals the following: the mean is 1759, standard deviation is 380 and 42 houses

8. Math (geometry)

A diagonal of one cube is 2 cm. A diagonal of another cube is 4*sqrt3 cm. The larger cube has volume 64 cubic cm. Find the volume of the smaller cube. --------------------------------------------------------------------------------------------------- There

9. physics repost

A force of 200 N acts on a 7.20-kg bowling ball for 0.350 s. Calculate its change in velocity. 7.20/0.350 = 20.57 m/s

10. physics

The melting point of a solid is 90.0 d/C. What is the heat required to change 2.5 kg of this solid at 40.0 d/C to a liquid? The specific heat of the solid is 390 J/kg-K and its heat of fusion is 4000 J/kg. I got 2 different answers 2 different ways:

11. chemistry

If 0.50 mol of iodine and 0.50 mols of chlorine are initially placed into a 2.00-L reaction vessel at 25 Degrees Celsius, find the concentrations of all entities at equilibrium.

12. chemistry

Liquid Nitrogen tetroxide, N2O4(l), was used as a fuel in Apollo missions to the moon. In a closed container the gas N2O4(g) decomposes to nitrogen dioxide, NO2(g). The equilibrium constant,k, for this reaction is 0.87 at 55 degrees Celsius. A vessel

13. physics

A student lifts a 1.2 kg bag from her desk, which is 0.59 m high, to a locker that is 2.9 m high. What is the gravitational potential energy of the bag relative to the desk? PE=mgh 1.2(9.80)(2.9) = 34.1

14. Physics

An ice skater of mass 55.3 kg stops to tie his shoe and is at rest. A second ice skater of mass 32.7 kg is moving at a velocity of 15.9 m/s when he strikes the first ice skater. After the collision the second ice skater has a velocity of 7.5 m/s at an

15. Statistics...help

An article claimed that the typical supermarket trip takes a mean of 22 minutes. suppose that in an effort to test this claim, you select a sample of 50 shoppers at a local supermarket. the mean shopping time for the sample of 50 shoppers is 25.36 min.

16. chemistry

Calculate the solubility of calcium sulfate in 0.010 mol/L calcium nitrate at SATP

17. physics

A 1600 kg vehicle moves with a velocity of 19.5 m/s. Calculate the power required to reduce the velocity to 3.20 m/s in 11.0 s. I don't know this one the only thing I know is p=w/t

18. chemistry

Given the equilibrium system PCL55(g) PCL3(g) + Cl2(g) k = 12.5 at 60 degrees Celsius. A 1.0-L reaction vessel is analyzed and found to contain 3.2 mol Cl2(g), 1.5 mol PCl3(g) and 2.0 mol PCl5(g). Show that the reaction mixture has not yet reached

19. 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

20. physics repost

A 1.00-kg ball is attached to a string of 0.50 m and swung in a horizontal circle with a velocity of 2.00 m/s. Find the centripetal acceleration. ac=v^2/r = 2.00^2/.50 = 8.0 m/s^2

21. Stat help

An article claimed that the typical supermarket trip takes a mean of 22 minutes. suppose that in an effort to test this claim, you select a sample of 50 shoppers at a local supermarket. the mean shopping time for the sample of 50 shoppers is 25.36 min.

22. science

A step-up transformer has 120 turns on its primary coil. It has 1150 turns on its secondary coil. The primary circuit is supplied with an alternating current at 120 V. The current in the secondary circuit is 2.4 A. What current is in the primary circuit?

23. physics repost

If Earth shrinks in size such that its shape and mass remain the same, but the radius decreases to 0.21 times its original value, find the acceleration due to gravity on its surface. (6378.1/0.21)(9.80) = 2.97 m/s^2

24. Physics

In an automatic clothes drier, a hollow cylinder moves the clothes on a vertical circle (radius r = 0.39 m), as the drawing shows. The appliance is designed so that the clothes tumble gently as they dry. This means that when a piece of clothing reaches an

25. Algebra

I am not sure if I did this right, it is the theorem on bounds to establish integral bounds for roots of equation. 6x^3-7x^2+7x+9=0 1 6 -7 7 9 0 6 -7 7 9 6 -1 6 0 0 0 6 -1 6 15 6 -7 7 9 -1 6 -7 7 9 -6 13 20 6 -13 20 29 answer is -1

26. chemistry

Calculate the solubility of silver chloride in a 0.010 mol/L solution of sodium chloride at 25 degrees Celsius. At SATP, Ksp AgCl(s) = 1.8 x 10^-10

27. physics

How much work is a 200 kg weightlifter doing while he holds a 1000 kg barbell stationary .75 m over his head? 1000(.75) = 7350 J

You want to use a windmill to generate electricity for your home. You decide to use Earths magnetic field which has a horizontal component B=10^-4 T to an induce emf. You design a conduction loop with 200 turns and surface area of 0.1m^2. The rod is 0.5m

29. religion

The Canticle of Canticles is an allegorical poem.Explain. I think that I am supposed to say that is has a melody or tone to it that make it sound better when sung or something like that but I am so clueless.

30. chemistry

AgCl Ag^+ + Cl^- NaCl ==> Na^+ + Cl^- Ksp = (Ag^+)(Cl^-) = 1.8 x 10^-10 Let S = solubility of AgCl, then (Ag^+) = S (Cl^-) = S+0.01 Solve for S. Note: A similar problem to this post (0.1 M NaCl instead of 0.01 M NaCl) was on a couple of days ago; the one

31. english

In the sentence: "I like to eat berries." What's the predicate?

32. English

I am supposed to write an opinion paragraph and I would like to know from an english teacher what I should change. My teacher seems pretty particular about what I write and always docks marks if I mess up on a tiny thing therefore I would really like some

33. Science

okay a couple. Air Masses move from ________ (rain,winds) A _______ front moves back and forth over the same area. (warm,statinary) At ________ fronts, warmer air gradually rises above cooler air.(warm,cold)

34. physics

How much heat must be removed from 0.15 kg of water to cool it from 95 d/C to 25 d/C? The specific heat capasity of water is 4182 J/kg-k. mC(T1-T2) 0.15(4182)(70) = 4.4 x 10^4 J

35. SCENCE

k so likei need to make a concept map using the following terms plants gymnosperm angiosperm flowers fruits maple tree cucumbers conifers cycads monocots dicots orchids lilies peanuts saguaro cactus dadelions but i have no idea wat to do!! please help

36. Algebra

Do not solve, show possibilities of Descartes's rule of signs for roots. 4x^3-9x^2+6x+4=0 f(x)=4x^3-9x^2+6x=4 - + + one change =4(-x)^3-9(-x)^2+6(-x)+4 - + - + three changes Positive Negative Imaginary 2 1 0 1 2 0 3 possible roots

37. Algebra

Using rational zero theorem find all rational zeros P(x)=3x^3+43x^2+43x+27 Factors: 27, -1, 3, 9, 27 Factors: 3, -1, 3 +-1/3, +-1, +-3, +-9, +-27 possible rational zero for function P(x)

38. Physics

In an automatic clothes drier, a hollow cylinder moves the clothes on a vertical circle (radius r = 0.39 m), as the drawing shows. The appliance is designed so that the clothes tumble gently as they dry. This means that when a piece of clothing reaches an

39. Book recommendation?

Can you please recommend a book that is not of the fantasy/ fiction genre? I am trying to read a book outside of my comfort level, but I don't necessarily want to read something that I'll dislike. Do you know of any good books that could possibly work for

40. Question on budget

How can I turn this into a line-item budget for personnel cost, a functional budget to calculate personnel costs per MRI procedures, and also a program (clinic) budget for providing health care services for 3000 patient visits? Someone please help I'm

41. chemistry

hey i need help on finding a good oxidation chart for chemistry.

42. chemistry

When 0.500 g of an unknown compound was dissolved in 15.0 g benzene, the freezing point depression was determined to be 0.320 C. The molar mass of the unknown compound is ____ (The freezing point depression constant for benzene is 5.12 C kg/mol. )

43. English expression

I am a first grader at New York Middle School. I am a first year at New York Middle School. I am in the first grade at New York Middle School. I am in the first grade at New York Middle School. I am a student in Class 1-2 at New York Middle School. I am a

44. physics

Which of the following physical properties can be used to measure temperature using a thermometer? A)volume B)pressure C)density D)viscosity I got A

45. English expression

* He doesn't like baths. How do you pronounce 'baths'? Do we have to omit the th sound in normal speech?

46. chemistry

o prepare a 200 mL of aqueous stock solution X, you transferred 50 mL of a known concentration solution into a 200 mL volumetric flask. If you realize that the volumetric flask was contaminated with water droplets after you cleanly transferred the known

47. physics

Carol and Bruno drag a box of mass 58.0 kg along a frictionless floor. Carol pushes the box with a force of 11.4 N at an angle of 40.0 downward from the horizontal. Bruno pulls the box from the other side with a force of 11.0 N at an angle of 40.0 above

48. music

what impreses me in Beethoven's music

49. Math

Sin(30)=5/c I don't get how to solve.... do you do 5= Sin(30)c? Then what?

50. physical science

carbon dating requires that the object being tested contains what?

51. Algebra HELP!

Do not solve, show possibilities of Descartes's rule of signs for roots. 4x^3-9x^2+6x+4=0 f(x)=4x^3-9x^2+6x=4 - + + one change =4(-x)^3-9(-x)^2+6(-x)+4 - + - + three changes Positive Negative Imaginary 2 1 0 1 2 0 3 possible roots

52. calc

a pie dish has base diameter 8 inches and top diameter 10 inches and height 2 inches. what is the volume of the disk? do I do it so cross sections are squares? help!! Thanks!

53. chemistry

A solution is made by mixing 20.0 mL of toluene C6H5CH3d=0.867gmL with 150.0 mL of benzene C6H6d=0.874gmL. Assuming that the volumes add upon mixing, what are the molarity (M) and molality (m) of the toluene

54. English Composition

This is my dog, Bongu. He is three years old. He is fat and ugly. But he is very cute to me. Bongu likes bubbles. He doesn't like baths. He also hates elevators. ---------------------- What is this passage about? It is about Bongu's _________. What is a

55. physics

A 75 kg skydiver dives out of her airplane 3000 m in the air. How much potential energy will she have left 1/4 of the way down? PE=mgh 75(3000)(.25) = 5.5 x 10^5

56. Physics

In an automatic clothes drier, a hollow cylinder moves the clothes on a vertical circle (radius r = 0.39 m), as the drawing shows. The appliance is designed so that the clothes tumble gently as they dry. This means that when a piece of clothing reaches an

57. Algebra

real/imaginary solutions x^(2/3)+3x^(1/3)-10=0 u=x^(1/3) u^2=(x^(1/3)^2=x^(2/3) u^2+3u-10=0 (u+5)(u-2) u=-5 u=2 x^(1/3)=-5 x^(1/3)=2 (x^(1/3)^3=-5^3(x^(1/3)^3=2^3 x=-125 or x=8

58. english

what are values and attitudes?

59. Physics

A child is twirling a 0.0116 kg ball on a string in a horizontal circle whose radius is 0.102 m. The ball travels once around the circle in 0.560 s. (a) Determine the centripetal force acting on the ball. N (b) If the speed is doubled, does the centripetal

60. math

Hi i need help on solving this question. The population, P(t) of a city is modelled by the function P(t)=14t^2 + 650t + 32000 When will the population reach 50000? I want to know what we are looking for, and how to get to that answer. Tnx

61. math

A carpet measures 7 meters 3 decimeters in length 4 meters 2 decimeters in width. What is its area in square meters?

62. legal aid

with regard to statute of limitation the term "tolling" means A.stopping the clock B.speeding up the clock C.expiration of the time on the clock or D.resetting the clock to zero.

Financial managers play a critical role in the success of both "for-profit" and "non-profit" businesses.

64. Lesson Plan on What Makes Us Grow

I am looking for a lesson plan on "What Makes Us Grow" for my Early Childhood Education Class. I have never done one and was hoping to find an example. It is for the a class size of 15 children and I have to include objectives, time required, materials,

65. Critical Thinking

what is the notion for subsequent multiple authors in a citation

66. English expression

Do you have a sister? Yes, I do. I have a brother and a sister. Do you have any brothers and sisters? Yes, I do. I have a brother and a sister. Which answer is correct? Are both answers correct? Which one is natureal?

67. Physics

A cubic solid of plastic floats in water with 2/3 of its volume below the water line. What is the density? If the total volume of the block in the above question is 6.4 * 10^-5 m^3 what is the buoyant force on it?

68. English expression

(A student is introducing herself and her sister.) Hi. I am Yujin. I am from Korea. I go to middle school. I have a sister. She is very pretty. Her name is Yuri. Bye. ---------------------- Is it OK to use 'Bye' after the introduction? Do we have to use

69. Graphing

I need to find the symmetry of a polynomial function graph. Is this correct? f(x)=x^2+2x-1 x=-6/2x=-2/2*1 x=-2/2=-1 It is symmetric about x=-1/-2

70. physics

True/False A hot object has more thermal energy than a similar cold object only because of greater kinetic energy. answer:true

71. physics

True/False The thermal energy of the particles in a gas is related to the temperatureof the gas. answer:true

72. Algebra

I am trying to find the real coefficients of the given roots. Did I do this right? 3,-9,3+2i (x-3)(x+9)[x-(3+2i)][x-(3-2i)]=0 (x-3)(x+0)[(x-3)+2i][(x-3)-2i]=0 (x-3)(x+9)[(x-3)^2-2i^2]=0 (x-3)(x+9)(x^2-6x-8)=0 (x^4-71x^2+114x+216)=0 answer

73. Physics

If the TV draws a 150W of power, the dishwasher 1500 W of power and the computer 100 W of power, will a typical 15 A circuit breaker trip if they operate simultaneously on one line? Explain why. Isn't P= IV and P=I^2R and P- V^2/R So wouldn't that mean

74. Algebra

write in form y=a(x-h)^2+k y=x^2-x-9 (x^2-2x)-9 complete the square (x^2+2x+1-1)-9 (x^2+2x+1)-1-9 (x+1)^2-9

75. Algebra

synthetic division find f(-2) f(x)=2x^4+4x^3+2x^2+3x+8 -2 2 4 2 3 8 -4 0 -4 2 2 0 2 -1 10 f(2)=10 check f(x)=2(-2)^4+4(-2)^3+2(-2)^2+3(-2)+8 f(x)=10

76. Accounting Multiple choice

ACON lTD ACQUIRES THE ASSETS AND ASSUMES THE LIABILITIES OF BIRD LTD WHICH HAVE OPEN MARKET VALUES OF A Assets \$120,000 Liabilities \$15,000 Acorn is to issue a debenture of \$50,000 and 10,000 \$1 Ordinary shares for the balance of consideration. What will

77. Math: Algebra

Factor the following. [(5/3x)^(3/2)] - [2/3x] + [(1/3x)^(-1/2)]

78. SCIENCE

thankz to ms.sue i now that animals eat corn, berries and apple but i need to now wat kind of animals and if carrots would count to

79. Algebra

find all ssymptotes of indicated type. I am really confused on this one. f(x)=(x-9)/(x^2-4), vertical x^2-4=0 x=+-2 x=2&x=-2 x arrow oo or x arrow -oo (-9/x)&(-4/x) approach 0 h(x)=(1/x)+0)/(1+0)=(0/1)=0

80. english - Ms. Sue

Ms. sue, Is there a website that I could go for help on critical thinking

81. Algebra

I have to simplify these please help im not sure how things in parenthesis are exponets -x(2)+8x-12 over x-2 2a(3)+a(2)-3a over 6a(3)+5a(2)-6a 3x(2)+2x-1 over x(2)+3x+2 a(2)-11a+30 over a(2)-9a+18 2y(3)-12y(2)+2y over y(2)-6y+1

82. world history

what are examples of global interactions in cultural arenas?

83. criminal justice

Do we even need Miranda anymore, doesnt everyone already know the warning?

84. poetry

i have to write a poem on what i feel poetry is or how i feel about poetry. i don't like to write poetry but i like to read it. what could i compare it to that would make a good poem?

85. chemistry

1) Explain why propan-1-ol has the number "1" in the name. -The number is there to show where the OH must go. 2) Say why ethanol does not have a number in its name. -Something to do with the amount of carbons ?? Butan-1-ol has several isomers. Give the

How is the job of a financial manager in a nonprofit organization different from that of a financial manager with a profit‑seeking firm?

Do you see the job of the non-profit financial manager as getting easier or more difficult in the future? Where might you get facts to support your conclusions?

88. biology lab

Lab: claim a pot with pea plants in it. If your pot has more than 3 plants, cut if back to three by cutting the extra plants off at ground level. Leave one plant fully intact. With a toothpick flag, label it "C" for control. Cut the apex of the main shoot

89. chemistry

Hi DrBob, I was wondering if you can help me with a few questions? If you can I would truly appreciate your time

90. math

How is doing operations (adding, subtracting, multiplying, and dividing) with rational expressions similar to or different from doing operations with fractions? Can understanding how to work with one kind of problem help understand how to work another

91. ALGEBRA

80,000+ 38250=118250 Which number is the integer?

92. Geology ...

Hi, Could anyone list the MAIN points in summarising the geological and chemical processes causing arsenic contamination in Bangladesh groundwater... I know a little about aquifiers and stuff but am struggling with the MAIN points. I have looked at the

93. John

min/max point minimum or maximum f(x)=2x^2+8x-2 a=2 x=(-b)/(2a)=(-8)/(2)(2)=-4 x=-4 y=2(-4)^2+8(-4)-2 2(16)-32-2 32-32-2 y=-2 (-4,-2) axis of symmetry is x=-4 range[-2,oo] minimum value -2

94. English expression

1. I have Mom, Dad, and a sister. 2. I have a mom, a dad, and a sister. Which one is grammatical?

95. Algebra

x^2-2x-8,=0 graph an appropriate quadratic function (x-4)(x+2)

96. physics

When a closed tin is heated, the pressure inside it increases. This happens because: The molecules move faster and each molecule strikes the walls of the tin more often.

97. physics

A cable pulls a crate of mass 19.0 kg across the floor in 6.8 s. If the total distance traveled is 5.40 m, find the power used by the cable. w=md 186.2(5.40) w= 1005.48 p=w/t p=1005.48/5.40 answer: 147.9 W

98. ETH

We are writing a paper on "Race in your Community" and I have had a hard time getting going because I live in a small town with really one ethnic group, however as I dug I started finding some minority groups are here, what I am looking for is for some

99. Physics

When Gorix escaped from Dr. Sloth's ship, his ship started at rest. Gorix immediately set his thrusters to full power, and his ship's acceleration increased by 2 m/s2 every second for 15 seconds. At that point, the ship remained at constant acceleration

100. Physics

An automobile tire has a radius of 0.380 m, and its center moves forward with a linear speed of v = 19.0 m/s. (a) Determine the angular speed of the wheel. (Assume that there is no slipping of the surfaces in contact during the rolling motion.) rad/s (b)

101. English or L.A or C.A

How can I use an antonym in a story any examples?

102. science

what is the ability to be squeezed into a smaller volume

103. Chemistry

You are given 350 mL a stock solution of 8.32E-03 M benzoic acid, MW = 122.125 g/mol. If the actual density should be 1.05 g/mL. What is your percent error?

104. Algebra

Explicitly explain how to tell an answer is correct when solvingi systems of equations. -thanks so much!

105. physical

wh is an iron ion attracted to asulfide ion and not a zinc ion

106. coefficient

test using the lead coefficient to find out if y arrow oo, or y arrow-oo as x arrow -oo y=-5x^3+4x^2+6x-7 n is odd -5x^3 an

107. Algebra

solve and answer in interval notation (x+2)(x-1)(x-10)>0 x+2=0 x-1=0 x-10=0 x=-2 x=1 x=10 answer: (0,-2)(1,0)(10,0)

108. psychology

discourse bodies electrochemical system

109. physics repost

Calculate the force of gravatational attraction between two spheres of mass 10.1 kg and 45.4 kg that are 38.5 m apart. F = G(m1)(m2)/r^2 = 6.67 x 10^-11(10.1)(45.4)/38.5^2 = 2.06 x 10 ^-11 N

2/3*3/5

111. Language

picturs and names of the parts of a ?book

112. Eth125

Post a 200- to 300-word summary of a current issue between Native Americans and the federal government. *I know that I would like to talk about gaming, but have no idea where to begin to look* Identify the legislation that you think is linked to the issue,

113. chemistry

Keq = [0.25 - x] / [0.25 - x][2x] = [0.25 - ] / [0.25 - ][2()] = What numbers need to be substituted

114. english - Ms. Sue - Please revise

o In the future, how will thinking critically influence the ways that you: · Read? · Write? · Process information? o Why and how could you apply critical thinking when evaluating each of the following: · Articles · Advertising · Media ·

115. Algebra

Solving for systems of equation using the elimiation method. 3x-2y=x-6 3(x+2y)=3

Should financial managers in non-profit organizations be compensated equally to their counterparts in profit‑seeking firms? Why or why not?

117. Accounting

Discuss similarities and differences in the roles economists play as policy advisors and as scientists. How would advice offered to policy makers differ depending on which role an economist assumes?

118. Music

Where can I find a guide to teach me how to play the guitar online?

119. algebra

In your industrial oven, you bake two cooking sheets with 12 scones each, two baking sheets with 20 cookies each, and one baking sheet with 2 scones and 10 cookies. Yesterday the bakery earned \$797.30 just from the sale of the cookis. Write and solve an

120. french

Passe compose again, last time SraJMcGin, you give me 4 situations where Past particples agree in gender and number, I get that part, I want to ask for verbs that need to agree, do you always just add e or s (feminine and plural) no matter what the verb's

121. Physics

A circuit with a capacitor took .128s to discharge from its max charge Qmax to half of that max charge once the battery was removed. In this series circuit there also is one resistor with 100 G(ohm symbol). The voltage drop is 12V across the battery. What

122. chemistry

Is it true that more potassium bromide can dissolve in distilled water than in a solution of potassium chloride? Im thinking maybe the common ion effect is present here?

123. absolute value

|x^2-10|=4 x^2-10=4 or x^2-10=-4 X^2-14=0 x^2-6=0 (x-7)(x+2)=0 (x-2)(x+3)=0 x=7 x=-2 x=2 x=-3 solution set {-3,-2,2,7} (?????)

124. chemistry

You transfer a 2M stock solution of Y into a container using a slightly wet pipet containing water drops. The concentration of the transferred solution Y has a ? (lower, higher, or same) concentration than(as) 2M.

125. English

When should someone use awhile and a while? I know one is a noun. Would you please give me an example of each. I would appreciate it. Thanks.

126. Algebra

state degree 4(x+8)^2(x-8)^3=0 (x+8)^2 (x-8)^3 I think the degree is 5, is that correct?

127. Social studies

Who were the "People of the Purple?"

128. Algebra

min/max point minimum or maximum f(x)=2x^2+8x-2 a=2 x=(-b)/(2a)=(-8)/(2)(2)=-4 x=-4 y=2(-4)^2+8(-4)-2 2(16)-32-2 32-32-2 y=-2 (-4,-2) axis of symmetry is x=-4 range[-2,oo] minimum value -2

129. Physics

What is the algebraic expression for the ratio ac,second/ac,minute of the centripetal accelerations for the tips of the second hand and the minute hand? Express your answer in terms of the periods Tsecond and Tminute. (Answer using T_m to be the period of

130. Algebra

Write all real and imaginary zeros. f(x)=x^3-8x^2+x-8 -8--1,-2,-4,-8 1 -+1,-+2,-+4,-+8 1-8 1-8 1 1-7-6 1 -7 -6 -14 2 1 -8 1 -8 2 -12 -22 1 -6 -11 -30 4 1 -8 1 -8 4 -16 -60 1 -4 -15 -52 answer (?) 8 is zero of f(x) 8 1 -8 1 -8 8 0 8 1 0 10

131. Algebra

[x-(-6+sqrt13)][x-(-6-sqrt13)] (x+6+sqrt13)(x+6-sqrt13) (x+6+sqrt13)(x+6+sqrt13) (x^2+12x+36-sqrt13^2) x^2+12x+36-sqrt13^2 x^2+12x+36-(13) x^2+12x+36-13 I think my answer is: x^2+12x+23

132. bio lab

Lab: claim a pot with pea plants in it. If your pot has more than 3 plants, cut if back to three by cutting the extra plants off at ground level. Leave one plant fully intact. With a toothpick flag, label it "C" for control. Cut the apex of the main shoot

133. Bio

Why do we study pollen tube growth in a lab on hormones?

134. music

Quincey Jones had a berry aneurysm - not a beri aneurysm didn't he?

135. algebra

In your industrial oven, you bake two cooking sheets with 12 scones each, two baking sheets with 20 cookies each, and one baking sheet with 2 scones and 10 cookies. Write an expression that illistrates the total cost of all baked goods in the scenario

136. SCIENCE

what are some foods with seeds that animals eat??

137. Orders of Magnitude

Why is the order of magnitude of 5x10^-11 -10 instead of -11?

138. Geography

What is Australai's place in the world? Also, what is Australia's role in the UN?

139. english - Ms. Sue

Ms. Sue, How can thinking critically influence the way that you read in the future.

140. chemistry

Hi DrBob, you are an inspiration to my brother since he tells me you help so many people including himself with your generosity.Thank you!. My brother was wondering if you will be online later tonight since he needs help with three questions when he gets

141. spatial organisation of society

elaborate the complementary of spatial interaction in terms of movement of people and comodities

142. Algebra

I am having trouble with finding the 1st and 3rd quartiles of a set of data. For example, let's say the data is: 4, 9, 11, 16, and 24

143. French translation

How would you say "Menu for Mother's Day" in French? Would it be "Le Menu pour le jour de mères"? Thanks.

144. math

A linesman in the NFL is nost likely to weigh between 250 and 300 pounds. Of the four player below, which would most likely be a linesman?

145. Health

What is "mono"?

146. CRITICAL THINKING

How can a person distinguish between the prejudicial and nonprejudicial use of rhetorical devices?

147. chem

how do you solve for a problem where they ask you to identify an unknown salt (they give you three choices) when you are given the pH and the Molarity.

148. health and safety

what are the risks and hazards of using a rowing machine and the diffrence between them

149. algebra

In your industrial oven, you bake two cooking sheets with 12 scones each, two baking sheets with 20 cookies each, and one baking sheet with 2 scones and 10 cookies. Write an expression that illistrates the total cost of all baked goods in the scenario

150. algebra

In your industrial oven, you bake two cooking sheets with 12 scones each, two baking sheets with 20 cookies each, and one baking sheet with 2 scones and 10 cookies. If the price of the scones are \$2.28 each and the cookies are \$1.19 each, how much total

151. algebra

m-(\$50)9=1/4m the answer (m) is \$600. what is the process for getting the answer?

152. cultural diversity

How can stereotyping effect group relations?

153. History-Reconstruction

I need to know the three main reasons the Reconstruction efforts to ensure equal rights to the Freedman failed?