Questions Asked onJanuary 18, 2013

1. Physics

Ted Williams hits a baseball with an initial velocity of 120 miles per hour (176 ft/s) at an angle of θ = 35 degrees to the horizontal. The ball is struck 3 feet above home plate. You watch as the ball goes over the outfield wall 420 feet away and lands

2. Biology

A blue eyed man whose parents were brown eyed marries a brown eyed woman whose father was brown eyed whose mother was blue eyed they have one female child who is blue eyed make a pedigree chart based on the information above.

3. Math

The measure of Ú3 is 101‹. Find the measure of Ú1. 1) 101 2) 106 3) 79 4) 74 I don't get it ~crys~

asked by LaShawnn Brown
4. Chemistry

The density of solid W is 19.3 g/cm3. How many atoms are present per cubic centimeter of W? As a solid, W adopts a body-centered cubic unit cell. How many unit cells are present per cubic centimeter of W? What is the volume of a unit cell of this metal?

5. Chemistry ASAP

3. Methane (CH4), ammonia (NH3), and oxygen (O2) can react to form hydrogen cyanide (HCN) and water according to this equation: CH4 + NH3 + O2  HCN + H2O You have 8 g of methane and 10 g of ammonia in excess oxygen. Answer the following questions: •

6. Statistics!

Many companies "grade on a bell curve" to compare the performance of their managers and professional workers. This forces the use of some low performance ratings so that not all workers are listed as "above average." Ford Motor Company’s "performance

7. Math

1. –9p – 17 = 10 (1 point) –3 16 18 –16 2. w over four – 4 = 3 (1 point) –4 28 3 11 3. d over three+ 10 = 7 (1 point) 51 20 0 –9 4. –2(m – 30) = –6m (1 point) –15 –13 –8 8 5. 3n + 2= 8 + 2n (1 point) 3 4 5 6 Simplify the

asked by plz help
8. Math

the product (2x^4y)(3x^5y^8) is equivalent to? a.5x^9y^9 b.6x^9y^8 c.6x^9y^9 d.5x^20y^8 e.6x^20y^8

9. physics

An object has a charge of −2.4 ìC. How many electrons must be removed so that the charge becomes +2.8 ìC

10. physics

Two small plastic balls hang from threads of negligible mass. Each ball has a mass of 0.14g and a charge of magnitude q. the balls are attracted to each other. When in equilibrium, the balls are separated by a distance of 2.05cm and the threads attached to

11. math

each table in a banquet room seats 8 people. The room can seat no more than 360 people. Write and solve an inequality to represent the number of tables in the banquet room

12. Chemistry

Block A of an unknown metal has a volume of 125cm^3 . Block B of a different metal has a volume of 145cm^3. If block A has a greater mass than block B, what can be said if the relative densities of two metal?

13. Physics

A 3.6 kg block initially at rest is pulled to the right along a horizontal, frictionless surface by a constant, horizontal force of 18.2 N. Find the speed of the block after it has moved 2.7 m. Answer in units of m/s

asked by Big Poppa Smurf
14. PRE-ALGEBRA

An adult house cat could be about 1____ high.

15. Physics

An intravenous blood plasma drip enters a vein in the patient’s arm from a bag raised a height h above the vein. If the diameter of the 5 cm long needle is 0.5 mm, use Poiseuille's law to find the height h that results in a 5 cm3/min flow rate. (Assume

asked by Jacob Dover
16. Microbiology

Discuss some of the physical and chemical factors involved in the composition, and in the preparation, of a culture medium. Nutrient ingredients: ___________________________________________________________ ___________ pH and buffering:

17. World history; Check:P

1.What methods did the Assyrians use when they attacked enemy cities? They captured 46 towns, by consolidating ramps to bring up battering rams, by infantry attacks, breaches and siege engines. 2.How did the Royal Road help Darius maintain control over his

18. chemistry

CS2+3O2 --> CO2+2SO2 What is the volume of sulfur dioxide, in milliliters,produced when 27.9 mL O2 reacts with carbon disulfide

19. algebra

A total of \$15,000 is invested into two accounts. One of the accounts earns 12% per year and the other earns 10% per year. If the total interest earned in the first year is \$1600, how much is invested in each account? 1.) Define the variable(s) and what

20. plzz help me

2. As you read The Cay, you will learn about people and their prejudices. as you read the cay Why do you think there would be feelings of hostility toward those of other races in Curacao? 3. Name 6 natural resources in Curacao. 4What is the capital of

21. Percent word problem

A pitcher holds 2 gallons of orange juice. The orange juice is made 20% concentrated juice and 80% water. How much water is used in the orange juice?

22. Physics

A 104 N car is lifted by a manually operated hydraulic lift. The area of the shaft of the lift is 80 cm2; the area of the piston that forces liquid into the system is 2 cm2. What minimum force must be exerted on this piston to lift the car? a. 104 N b. 125

asked by James Arnold
23. World history; HELP

Help please? 6.Do you think that the Zhou Dynasty’s downfall resulted from its method of control? Why or why not?

24. Chemistry

What type of chemist would study the energies and heats involved in chemical reactions?

25. Physics

Suppose that there is a partial blockage of the aorta, which normally pumps about 5 L of blood per minute. If the diameter of the aorta were reduced by 30%, what increase in blood pressure gradient would be needed to obtain the normal flow rate? (Assume

26. Math

Use the function rule, y = 2x + 5, to find the values of y when x = 1, 2, 3, and 4. Write the answers as ordered pairs that would be used to graph the function.

27. physics 2

A charge of -6.8 micro-Coulombs is placed at x = 0, y = 0. A charge of -18.5 micro-Coulombs is placed at x = 0, y = +37 cm. Another charge of -12.9 micro-Coulombs is placed at x = +17 cm, y = 0 cm. What is the angle the total electric force on the charge

28. World history; Check:P

City States: 1,How does an empire differ from a city-state? A city-state is an independent country whose territory consists of a city which is not administered as part of another local government. An empire is a geographically extensive group of states and

29. math

Alex has 1/2 pizza left in the fridge. At breakfast he ate 1/3 of it. What fraction of the original pizza does he have left?

30. physics (electric field)

The drawing shows the potential at five points on a set of axes. Each of the four outer points is 6.2 x 10-4 m from the point at the origin. From the data shown, find the magnitude of the electric field in the vicinity of the origin.

31. math

Each student desk in a classroom has a rectangular desktop that measures 60 cm by 45cm .Some of these desks are arranged ,side by side . Find the least length of a side of the square . AND the number of rows and colums of desk used to form the large square

32. physics

car a with mass of 1250kg, is traveling at 30 m/s to the east. car b is a truck with mass of 2000kg, traveling to the west at 25m/s. assume these two vehicles experience an inelastic collision but do not stick together and car a goes off 10m/s to the west.

asked by mauro dar
33. AP Calculus

Two ships sail from the same port. The first ship leaves port at 1:00a, and travels eastward at a rate of 15 knots. the second ship leave port at 2:00am and travels northward at a rate of 10 knots. Determine the rate at which the ships are separating at

34. maths-urgently needed

The areas of the the three adjacent faces of a cuboid are 600 sq.cm 300sq.cm and 200 sq.cm.find the sum of the length,breadth and height of the cuboid ?

35. Physics

A charge q1 = 5 ìC is at the origin. A second charge q2 = -3 ìC is on the x-axis, 0.8 m from the origin. The electric field at a point on the y-axis, 0.5 m from the origin is: I don't understand the question please help . Thanks for reading

A rectangular prism has the following dimensions. length: 8 cm width: 13 cm height: 10.5 cm If all the dimensions of the prism are doubled, what will be its new surface area? 1,298 cm2 4,192 cm2 2,596 cm2 4,368 cm2

37. Spanish Check??

Conjugate the following verbs in present tense for the forms shown: 1) conducir---yo, tu, el/ella yo conduzco tu conduces el conduce ella conduce 2) escoger---yo, tu, el/ella yo escojo tu escojes el escoje ella escoje the "j" is correct letter when you

38. Physics

Suppose you have a very long straw that can reach from a cup of water on the ground level to the top of a very tall building. When you use a pump to suck on the straw in order to bring water up, a. you can bring the water up to any height with no problem.

39. Physics

Suppose you have a very long straw that can reach from a cup of water on the ground level to the top of a very tall building. When you use a pump to suck on the straw in order to bring water up, a. you can bring the water up to any height with no problem.

40. math

In a house made up of 9 rooms, 6 rooms have painted walls, 2 rooms have ceramic tiled walls and 1 room has both painted and ceramic tiled walls. How many rooms do not have either painted or ceramic tiled walls? (Venn diagram required)

In basketball you score 2 points for a field goal and 1 point for a free throw. Suppose that you have scored at least 3 points in every game this season, and have a season high score of 15 points in one game. How many field goals and free throws could you

42. american history

At the outset of the secessionist movement in the South, which state defeated the cooperationist argument that the South should act as a unit? A. Mississippi B. South Carolina C. Virginia D. Kentucky

43. Physics, help me please?!

A car travels around a circular turn of radius 50 meters while maintaining a constant speed of 15m/s find the minimum value for the coefficient of friction necessary to keep the car on the road in icy conditions, the coefficient of friction drops to 0.15,

44. Chemistry 12

Solid phosphorous is found in two forms: white phosphorous (P4) and red phosphorous (P). White phosphorous is the standard state. The enthalpy of the formation of red phosphorus is -17.6kJ. When 32.6 g of white phosphorous reacts to form red phosphorous.

45. algebra 1

Given any random, 3-digit number, what is the probability that a number will be: a) a multiple of 5 b) divisible by 2 c) a square number i know the answer but i don't know how to solve it

46. Algebra

Rationalize each expression by building perfect nth root factors for each denominator. Assume all variables represent positive quantities. I don’t understand how to compute these. Also I don’t have the square root sign so I typed it out where it would

47. Physics

The period of longitudinal sinusoidal wave is 0.16 seconds and its wavelength is 8.0 meters. Calculate the wave's speed, frequency, angular frequency and wave number.

A number increased from 224 to 336. Find the percent of increase. A number decreased from 250 to 195. Find the amount of decrease.

49. Chemistry (mole question)

Calculate the molar mass of potassium hydroxide (KOH). How many atoms would we find in a 100 mL solution of 1 µM KOH?

50. Geography

Which state capital is east of the 90 degree W longitude line: Jackson, Indianapolis, or St Paul. I think that Indianapolis is the answer is that correct? Also, Is this correct? The Pacific Ocean is East of Asia, East of Australia, West of North America

51. Statistics

A committee will elect a president, a secretary, and a treasurer. If the committee consists of 35 members, how many possible outcomes for the three positions can occur? (Note that no member can be elected in two positions.)

52. Math

Jen-Min wants to enlarge a 4 inch by 6 inch photo so that the longer side will be forteen inch how long will the shorter side be?

53. Microeconomics

Discuss the ethics of using unconscious nudges to alter people's behavior. Within your answer, consider the argument made by economists Richard Thaler and Cass Sunstein, who favor the use of nudges. Could nudges be avoided? Do all policies contain some

54. physics 2

Three charges are placed on the y axis. One charge of -3.2 micro-Coulombs is placed at y = 0, another charge of +2.6 micro-Coulombs is placed at y = -0.29 meters, and another unknown charge is placed at y = +0.51 meters. The total force on the charge at y

55. math

73. Cell Phone Plan A cell phone plan costs \$3.95 per month plus \$0.07 per minute. (Assume that a partial minute is not rounded up.) (a) During July, a person talks a total of 50 minutes. What is the charge? (b) Write an equation in slope–intercept form

select an organization with which you are familiar and discuss the impact of that organization's level of social responsibility on a stakeholder group of your choice

57. physics

Dolphins emit clicks of sound for communication and echolocation. A marine biologist is monitoring a dolphin swimming in seawater where the speed of sound is 1523 m/s. When the dolphin is swimming directly away at 5.5 m/s, the marine biologist measures the

58. Algebra

8x^3 + 27 factor the sum or difference of two cubes. Please show work.

asked by Michelle Summer
59. Math

Eight sprinters from different universities are in the final match. In how many ways can the sprinters receive a gold, a silver, or a bronze medal?

60. Trigonometry

You are flying a kite while standing 60 ft from a fence. If the kite string makes a 40 degree angle with the ground, how much string, in feet, is let out when the kite is directly above the fence?

61. Physics, help!

A heat engine absorbs 126 kcal of heat and exhausts 77 kcal of heat in each cycle. Calculate the efficiency (as a percentage) An ideal gas heat engine operates in a Carnot Cycle between temperatures of 266 and 115°C. It absorbs 4250 cal per cycle at

62. physics

Boxcar A, with mass of 1500 kg, is travelling at 25 m/s to the east. Boxcar B has a mass of 2000 kg, and is initially at rest. The box cars collide in elastically and move together after they get stuck. What is their combined velocity?

asked by mauro dar
63. science/evolution

what exactly is the unity of life?

64. math

Place the following list in order from least to greatest. -.5,- Square root of 4, -1.5, and 3/8

65. math

If the first marble is replaced before the second marble is drawn, what is the probability of selecting a white marble then a red marble? there are 4 red marbles 5 white and 3 blue

66. Physics

A horizontal wire is held taut by a mass M hanging from its end over a pulley. A harmonic wave of wavelength is produced on the wire by a 52 Hertz vibration. If the mass of the density of the wire is 8.0 x 10^-3 kg/m, what is M?

67. Chemistry

1. I have 2% NaCl solution. From this I want to prepare a solution to contain 0.1 g of the sodium compound in 2 mL of water. Thanks

68. Spanish Check??

Conjugate the following verbs to future simple. Juan Y Ana (viajar) ______viajarán___________ a Europa el próximo año. Mi horóscopo dice que (tener) ___tendré______________un dia muy bonito. En las noticias dijeron que hoy (llover, 3rd person) ___

69. chemistry

Lab on Determining hard water Not sure if I answered this currently, not completely sure how to explain either. If a student has a non-zero blank correction, but forgets to include that correction in his/her calculations:? a. Would his/her calculated

70. MATH URGENT

a. Solve a – 9 = 20 b. Solve b – 9 > 20 c. How is solving the equation in (a) similar to solving the inequality in (b)? d. How are the solutions different? I don't know how to do this i forgot ... could u help (Steve, or Mrs.Sue, or Writeteacher plz

71. Marie/Gina

Using filthy language here gets you on the banned list in a hurry. =(

72. Calculus

Which of the following would have a horizontal asymptote of y = b/a? Which one has a horizontal asymptote of y = 0? ( bx^3 - x^2 + 3 ) / ( ax^2 - 2 ) ( bx^3 - x^2 + 3 ) / ( ax^3 - 2 ) ( bx^3 - x^2 + 3 ) / ( ax^4 - 2 ) ( bx^2 / a ) - 6 Please explain! :)

asked by Lost One
73. physics

The membrane that surrounds a certain type of living cell has a surface area of 4.4 x 10-9 m2 and a thickness of 1.6 x 10-8 m. Assume that the membrane behaves like a parallel plate capacitor and has a dielectric constant of 4.1. (a) The potential on the

74. chemistry

Suppose you have two 100mL graduated cylinders. In each cylinder, there is 36.0mL of water. You also have two cubes: one is lead, and the other is aluminum. Each cube measures 2.60cm on each side.

75. Math

A committee will elect a president, a secretary, and a treasurer. If the committee consists of 35 members, how many possible outcomes for the three positions can occur? (Note that no member can be elected in two positions.)

76. algebra 1

i need to make a math advertisement for one of the methods for solving systems of equations and i need a catchy slogan any ideas and a nice looking logo thnx

77. Math

Suppose that you toss a coin and roll a die. What is the probability of obtaining each of the following combinations? (Enter your answers as fractions.) P(Tails or a Five)

78. maths-urgently needed

Consider the number 6135246. Jai can change this number in the following way. He can select atleast one digit and at most six digits (which need not necessarily be consecutive) from this number, and shift them to the rightmost in their respective order.

79. Chemistry

Calculate the amount of heat required to raise the temperature of 3 moles of oxygen gas from 298 to 400K. Given that C, of O2 is 29.36 Jmole-'K-'. Please show how to do it.

80. Statistics

Eight sprinters from different universities are in the final match. In how many ways can the sprinters receive a gold, a silver, or a bronze medal?

81. Math

A cylindrical soup can has a radius of 4.1 inches and a height of 2 inches. Find the volume of this can. a.In terms of pi b. Also.To the nearest cubic inch

82. Spanish Check??

Please Check.. Write a dialogue between 2 people that just met. Use the vocabulary of the first 4 chapters.Write at least 10 sentences: 5 for each person. (Notice that a sentences has to have a verb.) Victoria: Hola, mi llamo Victoria. Alfredo: Hola, mi

83. Math

find the limit: Lim (49x^2-25)/(7x-5) x->5/7

84. Physics

An airplane wing with an average cross sectional area of 10 m^2 experiences a lift force of 5000 N. What is the difference in air pressure, on the average, between the bottom and top of the wing? a. 5000 Pa b. 500 Pa c. 50 Pa d. 50000 Pa e. 10 Pa

asked by Will Burns
85. World history; Check:P

Check please and help with #5. I have an answer but believe I'm wrong. 1.How did environmental features in Anatolia help the Hittites advance technologically? The Hattians were indigenous people who lived in Central Anatolia. As they lived in the

86. physics 2

Two identical positive charges are placed 15 cm apart and the magnitude of the electric force between them is 5.4 Newtons. They then exchange charge (one charge loses some electrons and the other gains the same amount of electrons), but they both still

87. Math

On a Christmas package, Audrey needs to use only 40-cent stamps and 16-cent stamps. If she uses twice as many 40-cent stamps as 16-cent stamps, how many of each type of stamp must she use to mail a package costing \$5.76 in postage?

88. Chemistry

Hey i have an idea how to do this but am not sure could you please help and show work. 12 moles of a gas sample at an initial temperature of 12 degrees celcius at a pressure of 200 Pa is allowed to expand isothermally and reversibly against a pressure of

89. Calculus 2

A circular plate of radius r feet is submerged vertically in a tank of fluid that weighs w pounds per cubic foot. The center of the circle is k(k>r)feet below the surface of the fluid. Show that the fluid force on the surface of the plate is F=wk(πr^2).

90. math

Brandon received a book for his birthday and read 36 pages in 3 hours. Later, he read 52 pages in 4 hours. Does his reading follow a direction variation? Explain

91. math

A theater has 1500 seats. One night, 9 out of 10 seats were filled. How many people attended that night?

92. algebra1

Sam rows up a river to camp in three hours.The next day he makes the return trip downstream in one hour. If he can row two mph in still water, how fast is the current? i don't understand this?

93. Math

The following drill bits came in a typical set. Covert each bit size to millimeters (mm),rounding to nearest tenth of a millimeter. 1/16 in or 5/64in

94. Math

How do I put this into the calculator: 4sqrt-1

95. Physics

An airplane wing with an average cross sectional area of 10 m^2 experiences a lift force of 5000 N. What is the difference in air pressure, on the average, between the bottom and top of the wing? a. 5000 Pa b. 500 Pa c. 50 Pa d. 50000 Pa e. 10 Pa

asked by Will Burns
96. Algebra

I need some help figuring these. Compute each product and simplify the result. I don't have the squareroot sign so put that meaning that's where it goes with the number after it. 1. (0.3 Squareroot of 5)^2 2. (2+ squareroot of 5)^2 3. (5+4Squareroot of

97. Math

Place the following list in order from least to greatest. ¾,.77, square root of 3, and .7717

98. Math

Find the volume of a rectangular solid with a length of 5 cm, width of 3 cm and a height of 0.5 cm

99. Pre Calculus 12 urgent

andrew is working on a binomial problem (1/2x-y)^7. He asks u to : i) what the coefficient of the 6th term ii) find the term that has the variabes x^47^3 (ex. 34x^4y^3) iii) find the first three terms of the expansion I really need help with that ^ . I

100. physics

a point charge of 3.00*10^-6C is 12.o cm distance from a second charge of -1.50*10^-6 c. Calculate the magnitude of the force on each charge?

101. physics capacitor

What voltage is required to store 8.0 x 10-5 C of charge on the plates of a 6.1-μF capacitor?

102. English

REVISED My passion for medical transcription arose because of my love for research and thirst for knowledge after losing my father from stroke complications. I have been curious about new diagnoses, medications, technologies, and new treatment options. As

103. Computer

You have an empty 64 bit PCI slot in your computer. What can you install in it? A. A single 64 bit adapter card B. A single 32 or 64 bit adapter card C. A single 64 bit adapter card or two 32 bit adapter cards D. A single 64 bit adapter and an 8 bit

104. Computer

What is the name of the Windows Utility that you use to format drives? A. System Manager B. System Drive Manager. C. Disk Management D. Windows Drive Administrator

105. lab

How much 38%Hcl will be used to prepare N/3.05 solution in 2litre water.

106. English

Write an essay on how i got admmision into Abia state polythecnic not less than 350 words

107. Algebra 2

Simplify sqrt80 -3 Sqrt63 - sqrt125 - sqrt175

Find the amount of decrease if 68 is decreased by 15%.

109. Algebra

I need some help figuring these. Compute each product and simplify the result. I don't have the squareroot sign so put that meaning that's where it goes with the number after it. 1. (0.3 Squareroot of 5)^2 2. (2+ squareroot of 5)^2 3. (5+4Squareroot of

110. statistics

help me work out the problem to calculate the difference means distribution parameters n(1)=25, n(2)=36 s(1)square=50, s(2) square=72, M(1)=100,M(2)=105

111. Physics

A cylindrical wood puck (density = 0.75 g/cm3 ) is placed into a water bath. The density of water is 1.0 g/cm3. The wood puck has a diameter of 11.0 cm and a height of 3.5 cm. When the puck reaches equilibrium in the water bath, how far below the surface

112. Math

thirds is 3/1 right ? 11/1 divided by 3/1 11/1 x 1/3 11/3 divide = 3 2/3 ??

113. Math

Describe the number of solutions for the equation. 13. 3(x – 3) = 3x (1 point) one solution no solution infinitely many solutions 14. –2(y – 3) = 2y – 6 (1 point) one solution no solution infinitely many solutions

asked by plz help
114. Help with math needed!

1. your favorite book is \$29.50, how much is it with tax? 2. A new bed set is \$45.00, it is 15% off discount with the tax 3. Your brother's baseball costs \$53.35 a month, but now they added 23% of the original cost to it, how much is it now? Note: each

asked by The Awesome One.....
115. math

how do you write 4/5, 5/12, 3/10 in its simpliest form?

116. Math

16. r over 4 – 1 = 4 (1 point) 1.3 0.8 12 20 Solve the inequality. 17. 12p < 96 (1 point) p < 8 p < 108 p < 84 p < –8

117. math

differentiate of y=|sinx|+|cosx|

asked by raghunath laguri
118. Science

What would be better topic for me to choose for my science fair project ? ( Anything except which ones i don't know about and wont get grades

119. Math

Hi,Im Wondering What Is The Unit Rate Of 68min/8mi?

120. MATH 11 help PLease!

A rectangular garden is made at the side of the house. Part of the house forms one side of the fencing and divided into four equal plots. If 90m of fencing is available, determine the dimensions for the entire garden that will produce a maximum area. how

121. Math

The denominator of a fraction exceeds twice the numerator of the fraction by 10. The value of the fraction is 5/12. Find the fraction.

122. Math

The ratio of the measures of the three angles of a triangle is 2:5:8. What is the measure of each angle of the triangle.

123. math

the sum of the reciprocals of three consecutive positive integers is equal to 47 divided by the product of the integers. what is the smallest of the three integers?

124. social impact on technology

The article "Young at Risk" purposes that the young of humans and animals are more vulnerable to chemical pollutant exposure due to all of the following reasons except that: A. their brains are less sensitive than those of mature humans and animals. B. the

125. English

Please indicate if these details are including in paragraph. The paragraph must describe one particular experience you’ve had that inspired you or guided you to choose the type of position for which you applied. show you have thought carefully about what

126. English

IS THIS PARAGRAPH ACCEPTABLE FOR THE INFORMATION REQUIRED? Your goal is to persuade your cousin to apply for the job. You e-mail her a paragraph explaining the specifics of the job and the reasons she should apply. You want to convince her that she has the

127. balaji pharmacy clg ,science

why it is taken 85ml of hcl for 1litre of solvent according to I.P. while it is 43.02ml when it is calculated?

128. maths

Using the fitted regression model, estimate the average change in cry time for infants with severe pain versus those without severe pain, holding group constant. Provide a 95% confidence interval for this estimate.

129. Algebra

Factor by grouping: 2x^2 - 4x + x - 2

asked by Michelle Summer
130. Physics

Two copper wires are held under the same tension. If the linear density of the second is twice that of the first, what is the speed of the waves on the second wire (relative to the first)?

131. Math

Suppose f is a function with range (-∞,∞) and g is a function with domain (0, ∞). Is it possible that g and f are inverse functions? Explain.

132. Math

111. Cold Water Survival When a person falls through the ice on a lake, the cold water removes body heat 25 times faster than air at the same temperature. To survive, a person has between 30 and 90 seconds to get out of the water. How long could a person

133. Math

#5. If a rancher has one cow with a contagious disease in a herd of 1000, then the time in days “t” for “n” of the cows to become infected is modelled by: t= -5ln((1000-n)/999n where “ln()” stands for natural logarithm function. a) Find the

134. math

In a(n) _________ , simple interest is added on to the amount borrowed and the total is repaid in equal installments.

135. math

if jay eats 1/3 of jelly beans and jack 1/4 of the jelly bean leveing bill with 10 jelly bean how many were there to start with

You are the owner of a mid-size business that sells medical devices to hospitals, clinics, and physicians. Your products include implantable devices (pacemakers) and equipment used for therapeutic applications such as dialysis, monitoring of blood sugars,

137. Math

If a+2b+3c = 34 then 3a+6b+9c=?

138. chemistry

why a flame of fire faces to the upward direction and not to the downward direction even having the effect of gravity?

139. Math

Given a geometric progression: 0.05, 0.2, 0.8, ... Find the sum from the 5th term to the 8th term?

140. algebra 1

what are some methods of solving systems of linear equations

141. Math

On a Christmas package, Audrey needs to use only 40-cent stamps and 16-cent stamps. If she uses twice as many 40-cent stamps as 16-cent stamps, how many of each type of stamp must she use to mail a package costing \$5.76 in postage?

142. English

need to unscramble these letters and make a sentence: hinhakinyteftiditelt

143. math

substract; than reduce answer to lowest terms 5/22- 1/41

144. elementary

525 mL= LITERS

145. physics

a point charge of 3.00*10^-6C is 12.o cm distance from a second charge of -1.50*10^-6 c. Calculate the magnitude of the force on each charge?

146. SCIENCE

How does pencil benifit mankind and the enviroment?

147. SCIENCE

how does a pencil work?

148. science

what are some of the harmful and negetive effects of the pencils?

149. anatomy

Ineed to get better organized for college and family. I am only taking 7 credit hours but i find my self staying up late to study. I'm taking anatomy and psysiology along with math 098. Please give me advice on creating a study schedule. Thank you

150. computers!!!

The location where a row and column meet is called a... Answer sold grid locale cell

151. science project

I'm trying to find information on does lung capacity depend on height

152. math

show graph how a factory can work its employess no more than 6 and and no less than 2 days per week if the work day is 6.5 hours what is the range in hours

153. Trig

Using this graph: imgur [dot] com/utSgKI9 Find the measures of angles A and G in the drawing (m is parallel to n) if C=4x-18 and F=2x+34

154. English

Hi! I am doing project on "What Factors Promote Psychological Well being in midlife"? I am confused and don't know where to start. What should I talk about to make it interesting topic that grabs the readers attention? Please give me ideas to start

155. psychology

how has the definition of social faciliation evolved over time

156. Science

organisms eat each other in an environment that follows is a ???? predator/prey wheel

157. math

if you buy 30 apple for 47 dollars how much does 1 apple cost

158. tutor

will i get volunteer hours here if i will answers some questions?

159. Physics

The kinetic energy of a proton is half its internal energy. What is the proton's speed? Kinetic energy is (Yu - 1) (mp) (c)^2 = 1/2 (mp) (c)^2 Yu = 1.5 Yu = 1/(square root) 1 - (u/c)^2 1/(square root) 1 - (u/c)^2 = 1.5 u= 0.745c How do I solve for u? I'm

160. physics

A movig particle encounters an external electric field that decreases its kinetic energy from 9670 eV to 7540 eV as the particle moves from position A to position B. The electric potential at A is -66.0 V, and that at B is +16.0 V. Determine the charge of

According to the textbook,an individual's most. Important decision that will effect the climate is: a. The choice to unplug an extra freezer that is rarely used b. looking for the energy star on new appliances c. Selecting a fuel efficient automobile d.

162. Computer

For which operating system is exFAT NOT an option when formatting a partition? A. Windows XP with SP3 B. Windows XP with SP2 C. Vista with SP1 D. Vista

163. Physics

A wave described by y(x,t)=Asin(kx-wt) moves down a string. What is the maximum transverse speed an atom of the string can have? What is the displacement of this atom at this time?

164. math

john is think of a number. If you divide the difference of his number and 12 by 7, and then add 23, the result is 32. what is the number and can you explain your answer?

165. Trig

What re the roots of the following polynomial equation (x+5)(x+2)(x-5)=0

166. math

What is the value of a home that costs 121,000 in 18 years at 4% interest

167. Mechanics that is physics

A car moved 15meter per sec.for 2min,after which it moved at 18meter per sec.for 45 sec,calculate the average velocity of the car.

168. Math

Using only measurements from the ground, determine the air speed of a passenger jet flying over the university. What methods should I use?

169. Math quick question

I was given a graph of an adult riding a bike. So I believe the period represents how long the wheels take to turn (is that correct?) now they want me to make a graph of a child riding a bike. Do you think the period would be bigger or smaller? I was

170. math

How can I find the tax?

asked by The Awesome One.....
171. Chemistry (Gas question)

The mean kinetic energy of the molecules in a sample of H20 gas is 12x10^-19 J, calculate the mean velocity of a molecule and the temperature of the gas. Please help need to know for exam tomorrow.

172. Allegbra

y=-.01x^2+.06x+5.9

173. Math

On a Christmas package, Audrey needs to use only 40-cent stamps and 16-cent stamps. If she uses twice as many 40-cent stamps as 16-cent stamps, how many of each type of stamp must she use to mail a package costing \$5.76 in postage?

174. HELP!

–6 – 7(c + 10) (1 point) 64 – 7c –76 – 7c 4 – 13c –16 – 13c plz help

asked by plz help
175. math

A pattern for curtains calls for 2/3 of a yard of material. You want to shorten the curtains to2/3 of the height of the pattern. How much fabric is needed?

176. Physics

One million spherical points join a point.Radius of any point is r=5x10^-4cm, while electrical load is q=1.6x10^-14C.What is the energy that should be spent for possession of electrical forces?

177. math

show 2 ways of using the distributive property to find the product of 125 times 32

178. Writing

What are some ideas for a title of an article on dances at school?

(8x + 2)+7

180. Math

find the distance between M(1; 0; -3) point and 2x-2y+z+7=0 plane

181. dara

the volume of a cube increases at average of 24cm^3 /min while it's length increases 2 cm/min

If 78 is increased by 40%, what is the new amount?

183. math

Let x=3 Evaluate if possible: -2x^2

184. Pre Calculus 12

Im on the chapter of permutations/combinations/fundamental counting principle need help with 2 questions 1. emma is arranging her books in piles on her desk. she has 5 math books, 3 english books, and 4 science books. how many ways can she arrange them if