1. Chemistry

A solution is made by mixing exactly 500 mL of 0.178 M NaOH with exactly 500 mL of 0.100 M CH3COOH. Calculate the equilibrium concentrations of H+, CH3COOH, CH3COO-, OH-, and Na+.

2. Chemistry

What intermolecular force exists between the CH3CH2CH3 , CH4 , or the "CH3CH2" end of the ethanol molecule and the water molecules? A. dipole-dipole forces B. hydrogen bonding C. London Dispersion forces D. no intermolecular interaction exists

3. calculus

The function f is continuous on the closed interval [0,6] and has values that are given in the table below. x |0|2|4|6 f(x)|4|K|8|12 The trapezoidal approximation for(the integral): 6 S f(x) dx 1 found with 3 subintervals of equal length is 52. What is the

4. Government

Hello, I need this question explained. You don't have to give me the answer ,but I just need a break down ..in order to know what direction i need to go in. I know what it means to be political..I guess Im just confused by the question. Please Help ! (

5. College Chem I

Based on the types of bonding in the following compunds, explain why you would expect: 1) calcium chloride (CaCl2) to be soluble in water 2) Ethane (CH3CH3) to be insoluble in water

6. Chemistry

Lakes that have been acidified by acid rain can be neutralized by the addition of limestone how much limestone in kilograms would be required to completely neutralize a 5.2 x 10^7 -L lake containing 5.0 x 10^(-3) g of H2SO4 per liter.

7. math plz help me

A couple purchasing a home budget \$1700 per month for their loan payment. If they have \$15,000 available for a down payment and are considering a 25-year loan, how much can they spend on the home at each of the following rates? (Round your answers to the

8. Chem5

A dioxin-contaminated water source contains 0.052% dioxin by mass. How much dioxin (in g) is present in 4.2 liters of this water? (Assume the solution density is 1.00 g/mL.)

9. Chem16

The reaction SO2Cl2(g)--> SO2(g) + Cl2(g) has Kc = 2.99 x 10-7 at 227 degrees C. If a reaction mixture initially contains 0.166 M SO2Cl2, what is the equilibrium concentration of Cl2 at 227 degrees C?

10. Chemistry

A 10.0-mL solution of 0.30 M NH3 is titrated with a 0.100 M HCl solution. Calculate the pH after the following additions of the HCl solution: a) 0.00 mL b) 10.0 mL c) 30.0 mL d) 40.0 mL

\$3,000,000,000,000,000 how much is this in words?

12. Physical Science

A cyclist applies a force of 250 N to the pedals of a bicycle. If the rear wheel applies a force of 200 N to the road surface. What is the mechanical advantage of the bicycle?

13. Chemistry

Clathrate hydrate research is done by Professor Ken Janda here at UC Irvine. Look up clathrate hydrate with a general search of the internet and at Professor Janda's Research. Look at text and structures posted on the Gas Hydrate Home and the Clathrate

14. cal

A Norman window has the shape of a rectangle surmounted by a semicircle (see the figure below). If a Norman window is to have a perimeter of 24 ft, what should its dimensions be in order to allow the maximum amount of light through the window? (Round your

15. Chem21

Rank these gases in order of increasing standard molar entropy: Column preview Smallest S Br2(g) Second smallest S F2(g) Second largest S I2(g) Largest S Cl2(g) Matching pairs Smallest S Second smallest S Second largest S Largest S

16. trig pls.. help me

A rocket carrying a weather satellite is launched. As it moves through space, the rocket is tracked by two tracking stations located 24 km. apart, beneath the rocket. The 2 tracking stations both lie west of the launching pad. at a specific moment, the

17. Calculus/Vectors

An airplane heads due south with an air speed of 480km/h. Measurements made from the ground indicate that the plane's ground speed is 528km/h at 15 degrees east of south. Calculate the wind speed.

18. physics

Two point sources produce waves of the same wavelength and are completely out of phase (that is produces a crest at the same time as the other produces a trough). At a point midway between the sources, would you expect to find a node or an antinode? Why?

19. Chemistry

10% (m/m) Sodium Hydroxide solution, NaOH(aq) is used to break down wood fibre to make paper. A) What mass of the solute is needed to make 250mL of 10% (m/m) solution? B) What mass of solvent is needed? C) What is the molar concentration of the solution?

20. math

The problem describes a debt to be amortized. A man buys a house for \$350,000. He makes a \$150,000 down payment and amortizes the rest of the debt with semiannual payments over the next 12 years. The interest rate on the debt is 11%, compounded

21. Chem17

Consider the following reaction at equilibrium: C(s) + H2O(g) CO(g) + H2(g) Predict which of these stresses which cause the equilibrium system to shift towards the reactant side (to the left). (There may be more than one correct answer - choose ALL of the

22. Chem

An aqueous KNO3 solution is made using 82.7 grams of KNO3, diluted to a total solution volume of 1.50 L. The density of this solution is 1.05 g/mL. What is the molality of this solution?

23. Physical Science

Hi... well anyways so I am in 7th grade but I'm taking 8th grade science...I think...I know for sure that I am in Accelerated 7th grade science so if that helps at all, there you go:) Back to the subject I'm really confused with acceleration calculation

24. math

A homeowner planning a kitchen remodeling can afford a \$200 monthly payment. How much can the homeowner borrow for 3 years at 5%, compounded monthly, and still stay within the budget?

25. Physics

The Apollo 8 mission in 1968 included a circular orbit at an altitude of 111 km above the Moon’s surface. What was the period of this orbit? The Moon’s mass is Mm=7.35E22 kg and its radius is Rm= 1.74E6 m

26. history

If you had been a voter at the time of Nixon's impeachment and resignation, how would the Watergate scandal have affected your perception of government power? Do you think the Watergate scandal has had an enduring effect on the public's perception of

27. Chemistry

What is the pressure exerted by a .500 mol sample of nitrogen in a 10.0L container at 20C?

28. English-cry the beloved country

Cry, the Beloved Country refers at various points to the fear that exists in South African society. According to the novel, what are the causes of this fear and what are the consequences of this fear? Include evidence from the novel to support your

29. chemistry

A dentist has a 5.00 L cylinder of N2O at 20.0 atm and 25 degrees C what is the mass of gas in the cylinder

30. Chemistry

If 16.5 g of oxygen gas is required to inflate a balloon to a certain Volume at 26.5 degrees Celcius, what mass of oxygen gas is required to inflate the same balloon to the same volume and pressure at 10.0 degrees Celcius?

31. Chem18

Coal can be used to generate hydrogen gas by this endothermic reaction: C(s) + H2O(g) CO(g) + H2(g) If this reaction is at equilibrium, which of these stresses would increase the formation of hydrogen gas? (choose ALL of the possible answers - there may be

32. statistics

A sample of 12 measurements has a mean of 34 and a standard deviation of 4.5. Suppose that the sample is enlarged to 14 measurements, by including two additional measurements having a common value of 34 each. A. Find the mean of the sample of 14

Given: 1. Mass of oxalic acid + weighing paper 2.0355g 2. Mass of weighing paper 0.5219 g 3.volume of oxalic acid solution 250 mL 5. Volume of oxalic acid used in titration trial 1: 15.o mL Trial 2: 15.0 mL 6. Volume of NaOH solution used in titration:

34. physics

You have a tuning fork of unknown frequency. When your ring it alongside tuning fork with frequency of 360Hz, you hear beats at frequency of 2 Hz. When you ring it alongside tuning fork with known frequency of 355Hz, you hear beats at a frequency of 3Hz.

35. Math

A ramp rises 5 feet and is 13 feet long. What horizontal distance h, in feet, does the ramp cover?

Mr. Badger bought 12 pens every month until their price rose to 15 cents each. Now he can only afford to buy 10 pens at the same total cost as before. What was the original price of each pen? There are 41 pigs and chickens on a farm. If there are 100 legs

37. college chemistry

a gas is collected over water at a certain temperature. The total pressure is 756 torr. The vapor pressure of water at this temperature is 17torr. The partial pressure of the gas collected is what?

38. mat

harvest cereal comes in boxes of different sizes.the regular box holds 7/8 pounds.the small box holds 2/3 as much. How much cereal does the small box hold?

39. Chem7

Calculate the osmotic pressure (in torr) of a solution containing 17.15 mg of hemoglobin (molar mass 6.5 x 104 g/mol) in 12.8 mL of solution at 25 degrees C.

40. Life orientation

A)In 10-15 lines critically discuss 5 ways in which the enviromental problems impacts the community.Provide relevent sources to support your claims. b)Provide recommendations on how to address the topic that you identified in the previous question. c)Name

41. Chemistry

how much heat is required to melt an ice cube that is 4.2 cm x 2.1 cm x 2.9 cm? The density of ice is 0.92 g/cm3

42. physics

Jessica weighs 540 Newtons, According to Newton's 3rd law, if the Earth pulls on Jessica 540 N, then Jessica pulls on the Earth 540 N acting in the opposite direction. If she trips while rollerblading, why will she fall to the ground

43. College Chemistry

Ok, so I’m working on this problem where I have to get electron per mole. I know that I need to get from Coulombs/mole of H2 all the way to # of electrons/ moles of electrons. I know that the half life reaction is as follows: 2H+ +2e- -->H2(g) For

44. Chemistry

how much heat is required to melt an ice cube that is 4.2 cm x 2.1 cm x 2.9 cm? The density of ice is 0.92 g/cm3

45. math

I keep getting the wrong answer on this. My answers have been \$243.18 and another was \$247.23. ugh.. neither is right, so help plz. A homeowner planning a kitchen remodeling can afford a \$200 monthly payment. How much can the homeowner borrow for 3 years

46. Science_Chemistry

A glucose (C6H12O6) solution is 2.5% glucose by mass. If the density of the solution is 1.10 g/mL, what is the molarity of glucose/water solution?

47. Chem6

A solution contains naphthalene dissolved in hexane at a concentration of 10.40% naphthalene by mass. Calculate the vapor pressure of hexane above the solution, given that the vapor pressure of pure hexane at this temperature is 151 torr.

48. Chem9

An aqueous solution containing 35.1 grams of an unknown molecular (noneolectrolyte) compound in 152.5 grams of water was found to have a freezing point of -1.8 degrees C. Calculate the molar mass of the unknown compound.

49. algebra

we have a cube shaped box with a volume of 125 cubic centimeters. what is the least amount of wrapping paper you would need to wrap the box?

51. Math

Kelsey has 6 coins. 1/3 of her coins are dimes. The value of the dimes is one-fourth the value of the coins. How much money does Kelsey have?

52. math

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.2x + 2y = 202x – 2y = 4

53. physics

A 120-V motor has mechanical power output of 3.20 hp. It is 81.0% efficient in converting power that it takes in by electrical transmission into mechanical power. (a) Find the current in the motor. Answer: 24.6A (b) Find the energy delivered to the motor

54. Chemistry

A mixture of Nitrogen and Argon gases in a balloon exerted a pressure of 2.55 atm. Given that there were 1.0 g nitrogen gas and 3.2 g argon gas in the balloon, calculate the partial pressure of argon gas.

55. math

You brought home 1/2 of a can of paint. You then used 2/3 of the paint to cover a table top. What fraction of a full can of paint did you use? We are multiplying fraction but do I multiply 2/3 paint by 1/1 or do I do 1/2 by 2/3

56. Poem

She was a Phantom of delight When first she gleamed upon my sight; A lovely Apparition, sent To be a moment's ornament; Her eyes as stars of Twilight fair;  Like Twilight's, too, her dusky hair; But all things else about her drawn From May-time and the

57. Chemistry

What is the unit cell of calcium sulfide? anti-fluorite cesium cholride diamond fluorite graphite rutile sodium chloride zinc blende

58. poetry

what is the theme in the poem phenomenal women by maya angelou

59. math

A box contains 8 blue balls and 2 red balls. Three balls are selected from the box at random without replacement. Find the probability that two balls are blue and one ball is red.

60. Physics

A beam, B1, of mass M1 = 0.6887 kg and length L1=1 m is pivoted about its lowest point at P1. A second beam, B2, of mass M2=0.200 kg and length L2=0.200m is suspended (pivoted) from B1 at a point P2, which is a horizontal distance d=0.550, from P1. To keep

61. Chem1

The reaction N2O5 --> NO3 + NO2 is first-order in N2O5 and has a rate constant of 0.058/s. Calculate the rate of reaction when the concentration of N2O5 is 0.065.

62. Science (Asap)

How are an empty glass bottle and a glass candlestick that were created from crushing and melting glass alike and different?

63. Science (Asap)

Compare and contrast: When you combine two or more different substances,you get a mixture.The substance aren't mixed evenly.Their properties don't change.The substance can be separated from the mixture.For example,sand is a mixture that can be separated

64. Biology

Habitat limits result in a populations A)salinity B) temperature C) physical obstacles D) biogeographic range

65. p

you visit the grand canyon on a particularly hot day and like all good tourists, you yell, Hello! Would you expect to hear the echo sooner or later than on a cooler day? Why? please show all work Thank you

66. chemistry

Data: freezing point of pure cyclohexane: 6.0 degrees celcius Freezing point of unknown soluton: 1.6 degrees celcius weight of cyclohexane: 40.0231g=0.0400231 kg weight of unknown solute: 0.4872 g K_f_ of cyclohexane: -20.00 degrees Celciusx kg/mole

67. Thermodynamics

Sodium carbonate can be made by heating sodium bicarbonate: 2NaHCO3(s) ¨ Na2CO3(s) + CO2(g) + H2O(g) Given that ƒ¢H‹ = 128.9 kJ/mol and ƒ¢G‹ = 33.1 kJ/mol at 25‹C, above what minimum temperature will the reaction become spontaneous under

Electricity may be generated by rotating a loop of wire between the poles of a magnet. The induced current is greates when: a.Plane of loop makes an angle 45 degrees with the magnetic field b.The plane of the loop is parallel to the magnetic field c.The

69. math

adebt of \$6000 is to be amortized with 8 equal semiannual payments. If the interest rate is 5%, compounded semiannually, what is the size of each payment

70. geography

how do you think the existance of nearly 3000 ethnic groups and 800 languages affects life in countries south of the sahara

71. physics - i need A.S.A.P

An object of mass 1.5 kg is placed on a rough horizontal surface, as shown in Figure 1. Force F acts on the object. When the magnitude of F is 10 N, the object just begins to slide. Determine the coefficient of static friction between the object and the

72. calculus

The graph of f'(x) is shown for 0=< x =

73. Life orientation

In 10-15 lines critically discuss 5 ways in which the human or environmental problem impacts on the community

74. Chem14

The reaction 2 H2S(g)--> 2 H2(g) + S2(g) has Kp = 2.4 x 10-4 at 1073 K. A reaction mixture contains 0.146 atm of H2, 0.041 atm of S2 and 0.574 atm of H2S. What is the value of Qp?

75. Math

Mr. Badger bought 12 pens every month until their price rose to 15 cents each. Now he can only afford to buy 10 pens at the same total cost as before. What was the original price of each pen? There are 41 pigs and chickens on a farm. If there are 100 legs

76. human resources

o Name three selection tools that you would consider using to hire a police officer. o Choose what you think is the best selection tool or combination of selection tools in choosing the best candidate. o Detail which interview method would be most

77. chem

Supply the missing atomic symbol to complete the equation for the following nuclear fission reaction. 1/0n +235/92U ------> 137/52 Te +?/?X + 2 1/0 n + energy also how do you decipher whether its 2 1/0n rather than 3?

78. physical science

The resultant vector of two particular displacement vectors dose not equal the sum of the magnitudes of the individual vectors. Describe the directions of the two vectors.

79. Chemistry

HCl(g) HBr(g) HF(g) Which of these gases has the fastest average speed? Which has the highest average kinetic energy?

80. Math

An executive invests \$24,000, some at 7% and some at 5% annual interest. If he receives an annual return of \$1600, how much is invested at each rate?

Calculate the magnitudes of the gravitational forces exerted on the Moon by the Sun and by the Earth when the two forces are in direct competition, that is, when the Sun, Moon and Earth are aligned with the Moon between the Sun and the Earth. This

82. Physics Urgent!!!!!

OK, I know, I'm postin this way too many times but I'm halfway there now.... Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational

83. Math

Can someone guide me with this question? Four teachers and five students have volunteered to serve on the school's fundraising committee, which is chaired by the principal. The principal wishes to select the committee using a random draw. He places each

84. English

I urgently need you to check these sentences on a trip description. I hope you can help me. Thank you. (I icluded some corrections in parentheses) 1) Our plane took off from Milan and stopped a day in Hong Kong. 2) We had the possibility to visit quickly

85. calculus

use substitution to find the indefinite integral (x^3+3x)(x^4+6x^2+8)^9dx

86. Science

To determine the mass percentage of an iron sample, the dissolved sample [iron exists at the start as iron(II)] was titrated with potassium permanganate (permanganate forms manganese(IV) oxide.)If 22.25 cubic cm of 0.0123 potassium permanganate, what is

87. Algebra

A ball is hit straight up initially with the felocity of47 ft per second The height(h) of the softball in ft above ground after(t) seconds, Using the equasion H=-16 square + 47 T + 3. How long was the softball in the air before it hit the ground?

88. Math

Please help me solve these problem i have no idea how to do this. 720m/d= ____ m/min 1.5gal/min=______ qt/h 32yd/min=_____in./s 0.85km/s=______m/min 80mi/h=_______ft/s 20fl oz/min=_______qt/day

89. Calculus

Find the area of the shaded region given two points and the function y=cosx. Here's a figure (page 4 figure 7) math.upenn.edu/~deturck/m103/rogawski/chap6odd.pdf

90. Physics

For two identical satellites in circular motion around the Earth, which statement is true? a. The one in the higher orbit has more kinetic energy b. The one in the lower orbit has more total energy c. The one in the lower orbit has less total energy d.

91. math

another one like it. plz help me out. A couple finances a house valued at \$150,000. They make a \$10,000 down payment and finance the remainder for 30 years at 6.8%. Taxes on the property are estimated to be \$621 per year. Insurance on the property is

92. calculus

Evaluate integral of e^x^(1/2) / x^(1/2) I've looked at the answer but I don't understand what people do in their steps. When I substitute x^(1/2) for u, I get: 2du = 1/x^(1/2) dx But what do you do with the 1/x^(1/2) dx? It just disappears in the

93. physical science

If a quantity of gas in a piston cylinder has a volume of 0.9 m3 and is initially at room temperature (30°C) and is heated in an isobaric (constant-pressure) process, what will be the temperature of the gas in degrees Celsius when it has expanded to a

94. Maths

Student has a probality to pass in english is 60% , and probality to pass in english and maths is 54% , what is probality he will fail in maths

If 150 g of water is heated from 3.0 celieus to 48.0 celieus how many joules of heat are needed

96. Chem10

The decomposition of XY is second-order in XY and has a rate constant of 0.00599 M-1s-1 at a certain temperature. If the initial concentration of XY is 0.174 M, how long (in seconds) will it take for the concentration to decrease to 0.054 M?

97. Physics

For two identical satellites in circular motion around the Earth, which statement is true? a. The one in the higher orbit has more kinetic energy b. The one in the lower orbit has more total energy c. The one in the lower orbit has less total energy d.

98. geometry

find the perimeter of the polygon with vertices A(-5,-3) B(1,0) C (3,-4) D(-3,-7)

99. physics

Will the photoelectric effect change for different targets

100. physics

What would happen the the wavelength of an organ pipe if you fill it with helium instead of air? What would happen to the fundamental frequency? Explain Please show all work, Thank you

101. physics

The figure below represents a periodic wave. Each increment on the equilibrium line is 760 cm. What is the wavelength for this wave (in m)?If the wave in the figure above has a frequency of 60 Hz, what is the wave's speed?

102. calculus

Decide on what substitution to use, and then evaluate the given integral using a substitution. HINT [See Example 1.] (Round your decimal coefficients to four decimal places.) x/(2x^2-1)^0.4 dx

103. Brief Calculus

Decide on what substitution to use, and then evaluate the given integral using a substitution. HINT [See Example 1.] (Round your decimal coefficients to four decimal places.) x/(2x^2 − 1)^0.4 dx

Calculate the magnitudes of the gravitational forces exerted on the Moon by the Sun and by the Earth when the two forces are in direct competition, that is, when the Sun, Moon and Earth are aligned with the Moon between the Sun and the Earth. This

105. physics

a particle drops from the height 500m with the initial velocity at rest, and it goes into the water. a particle has a mass of 1kg. draw graphs a-t, v-t, and s-t until 10 second after it hits the water. consider the air and water resistance is measured as F

106. Finite Math

Time-share sales provide an opportunity for vacationers to own a resort condo for 1 week (or more) each year forever. The owners may use their week at their own condo or trade the week and vacation elsewhere. Timeshare vacation sales usually require

107. physics

a box containing 2.00m cubed of air is sealed at sea level pressure of 1.0 atm and a temperature of 20.0 degrees celsius. if the box is heated in an oven to a temperature of 250 degrees celsius, what is the final pressure in atm in the box?

108. math

would you please check these for me thank you. +6+-5--4= 5 also Sara only has dimes and nichels in her coin jar,they are ina ratio of 3 to 5.If she has 120 coins in the jar,how many are dimes? 45 correct??

Yes Ms. Sue my target is the audience. Learned about the HBC company, and now have to do a Ad on it. What could my title be? I was trying to look for a good slogan, but I don't know. I don't really want it to be as simple as...."Work for the HBC" I've

110. physics ---- really dnt get this at all

Will the photoelectric effect change for different targets

111. math

A couple finances a house valued at \$150,000. The monthly principal and interest payment has been determined to be \$599.32. Taxes on the property are estimated to be \$621 per year. Insurance on the property is projected to cost \$685 per year. The monthly

112. math

no idea what to do here. was in hospital and missed class for a while.any help is very welcome and apprecited. A couple finances a house valued at \$150,000. The monthly principal and interest payment has been determined to be \$641.85. Taxes on the property

113. College Chemistry

can someone please explain how to indicate where a label appears in a product? for example: where the label appears in 2-[14C]-Glycine --> AMP

114. Chemistry

It is possible blank the products of some chemical reactions?

115. Physics - Momentum

A student flings a 2.3g ball of putty at a 225g cart sitting on a slanted air track that is 1.5m long. The track is slanted at an angle of 25 degrees with the horizontal. If the putty is travelling at 4.2 m/s when it hits the cart, will the cart reach the

116. accouting

Company E December 31, 2010 Assets \$42,000 \$32,760 \$26,880 \$74,760 \$114,660 Liabilities 34,440 22,932 14,515 51,584 ? December 31, 2011 Assets 45,000 32,400 ? 81,900 124,200 Liabilities ? 22,032 14,773 39,312 98,118 During year 2011 Stock issuances 6,000

117. Finance

Default risk) You buy a very risky bond that promises a 9.5% coupon and return of the \$1,000 principal in 10 years. You pay only \$500 for the bond. a. You receive the coupon payments for three years and the bond defaults. After liquidating the firm, the

118. biochemistry

can someone please explain how to indicate where a label appears in a product? for example: where the label appears in 2-[14C]-Glycine --> AMP

119. Chem8

The decomposition of XY is second-order in XY and has a rate constant of 0.00895 M-1s-1 at a certain temperature. If the initial concentration of XY is 0.194 M, how long (in seconds) will it take for the concentration to decrease to 0.047 M?

120. Chem15

The reaction CO(g) + H2O(g)--> CO2(g) + H2(g) has Kc = 102 at 500 K. If a reaction mixture initially contains 0.154 M CO and 0.154 M H2O, what will be the equilibrium concentration of H2?

121. english

Hockenbury and Hockenbury tell us that daily hassles often cause more stress than major problems do. According to several studies, men and women report different kinds of daily stress and react to stress differently, though both experience psychological

122. math

one way to resize a ring is to fill a bar into the ring.suppose a ring that is 20 mm in diameter has to be resized to fit a fingure 16 mm n diameter what is the length of the bar that should be inserted in order to make the ring fit the fingure? ( Hint:

123. general knowledge

how to write 2nd may 2011 in 5 letters without using numbers?

124. maths

how to write 2nd may 2011 in 5 letters without using numbers?

125. chem

How many grams of ethylene glycol, HOCH2CH2OH, are present in 5.6 gallons of a 4.81 m solution with a density of 1.98 g/mL? g

1.I fold the clothes. Yo doblo la ropa. 2.My padre vacuums. Mi padre pasa la aspiradora. 3. I make the bed. Hago mi cama. 4. I take out the garbage. Yo saco la basura.

127. math

I have no idea how to do this either. plz help. thank you. A couple finances a house valued at \$150,000. The monthly principal and interest payment has been determined to be \$599.32. Taxes on the property are estimated to be \$621 per year. Insurance on the

128. physics

assume that the spool is a solid cylinder of radius 0.5m and a mass 5.0kg, and m=5.0kg. Find the angular speed of the spool after the mass m has fallen 3.0

129. math 140 math for professional

Assignment Part I: A system of equations can result in 3 possibilities: consistent, inconsistent, and dependent. Discuss each of these types of solution that can be generated, and describe the graph of each possibility. Part II: Break-Even Analysis and

130. Physics

The temperature difference in and outside an electric oven is 150oC glass fitted on the door has thickness and area of 0.2cm and 300cm2 respectively. if thermal conductivity of glass is 0.84Js-1m-1K-1 then how much heat will be lost in one minute?

131. Chemistry

What is the pH of a 0.0250 M solution of HCN? Ka = 4.0x10^-10

132. Chem2

A reaction in which A, B, and C react to form products is zero order in A, one-half order in B, and second order in C. If the concentration of C is increased by a factor of 4.95 (and all other concentrations are held constant), how much will the rate of

133. Chem3

A solution is prepared by dissolving 22.8 mL of methanol (d = 0.782 g/mL) in 100 mL of water (d = 1.00 g/mL) so that the final volume of solution is 118 mL. What is the percent methanol by mass?

134. Social Issues

True or False It is inevitable that parents and teachers will be in conflict.

135. Science (Asap)

Month temperature(degrees fahrenheit) January 13 February 20 March 31 April 46 May 59 June 68 ------------------- A.What is the range of the data for these six months? show or explain how you got your answer

136. Chemsity

If 150 g of water is heated from 3.0 celieus to 48.0 celieus how many joules of heat are needed

137. Pre-Calculus

Two barges are pulling a ship into the harbor. Barge A is pulling with a force of 2700N at N43 deg E, and barge B is pulling at S 50 deg E. What force must barge B exert so that the ship is pulled directly East?

138. algebra1

y=the negative square root of 2x

139. physics

In the following list of periodic waves, which one is independent of the others: frequency, wavelength,speed,amplitude? Plese show all work Thank you

140. Science (Asap)

You learned that a tree can be cut down and shaped into a bat.This is a physical change.What are some of the physical changes we find in nature?

141. Chemistry

(5 pts) Hexane is a hydrocarbon (a molecule containing only carbon and hydrogen) with a molecular weight of 86.18 g/mol, a density of 0.660 g/mL, and a boiling point of 60C. Pentanol is an alcohol ( a hydrocarbon with a "OH" group attached to one of it's

142. Chem11

The reaction 2 COF2(g)--> CO2(g) + CF4(g) has Kp = 2,001,051 at a certain temperature. What would be the value of Kp for the related reaction: 3 CO2(g) + 3 CF4(g)--> 6 COF2(g)? (Enter your answer in scientific notation, e.g. 5.46e-17.)

143. physics

If acoin roll at 1.5m/s and later rolls at 4.5m/s with an acceleration of 2 meters per squared second how long will it take to come to a stop, how far will it travel?

144. Chem13

The reaction CO(g) + 2 H2(g)--> CH3OH(g) was studied using a 5.19 L flask and an initial condition of 26.9 g CO and 2.34 g H2. At equilibrium, the flask contains 8.34 g CH3OH. Calculate Kc for this reaction.

145. statistics

the test score of 30 students are listed below. Find the Q3

146. world history

What trends in political organization and economic developments can be identified in 20th century world civilizations?

147. physics

If the breakers at a beach are separated by 5m and hit shore with frequency of 0.3Hz, at what speed are they travelling? Please show all work, Thank you

148. chem

What is the pH of the solution created by combining 2.40 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? I understand how to find the pH for the NaOH + HCl solution. However, I'm not sure how to find it

149. physics

which of the following properties of a sound wave determines its pitch: wavelength, speed, amplitude, or frequency? Plese show work, Thank you, Silly

Calculate the magnitudes of the gravitational forces exerted on the Moon by the Sun and by the Earth when the two forces are in direct competition, that is, when the Sun, Moon and Earth are aligned with the Moon between the Sun and the Earth. This

151. Quick Question

"political unrest also threaten world food security for human society" What does that quote mean? Does it mean the government will not protect the food???

152. Physics

A block of mass m1 is connected to an empty bucket of mass 1.35 kg by a cord over a frictionless pulley. The coefficient of the static friction between the table and the block is 0.45 and the coefficient of kinetic friction between the table and the block

153. algebra

find the length and width of rectangle ABCD...a - c = 4x and c-d = x... the perimeter = 140cm

154. organic chemistry

can someone please explain how to indicate where a label appears in a product? for example: where the label appears in the patheway 2-[14C]-Glycine --> AMP

155. Physics

Considering the diagram below, derive the standard formula for the second moment of area and radius of gyration for a rectangle of length L and breadth B about an axis through its centroid and parallel to the long edge.

-20=-4x-6x

157. Math

Hey is this right i am doing decimals please i need help and i am losing my mind lol help me please n is this right 3/5 = 8/10 = 0.8 , 2/5 = 7/10 = 0.7 , 1/5 = 6/10 = 0.6 , 4/5 = 9/10 = 0.9 , 2/10 = 5/5 =0.7 and uh hey if this is not right then can u

158. Math

What is the answer to 3 1/4+ 1 5/6? I need this answer simplified

159. physics

if you kick a football at a 30 degree angle, how many seconds is it in the air, and how high does it go

160. AP World History

what are some differences in racial ideologies in N. America and Latin America between 1500 and 1830

161. math

A farmer has 200 acres of land suitable for cultivating crops A, B and C. The cost per acre of cultivating crop A, crop B and crop C is \$40, \$60 and \$80, respectively. The farmer has \$12,600 available for land cultivation. Each acre of crop A requires 20

162. To SraJMcGin

*Des vacances speciales* Pensez à des vacances spéciales (ou imaginaires) avec votre famille ou vos amis. Faites une série de dessins qui montrent, en ordre, les activités spéciales. (Vous pouvez aussi utiliser des photos.) enfin, sous chaque dessin,

163. Math

How do I solve a slope equation for Y? Example: 2/3y = - 1/5x

164. math

7 minus -15 equals? would that be a -8?

165. geometry

Given that circle A has a radius of 52 and a radii AB and AC form an angle of 132 degrees, find the exact length of BC

166. math

What are the steps of the order of operations? Why is it important that you follow the steps rather than solve the problem from left to right? Write an expression for your classmates to simplify using at least three of the operations from the order of

167. chem

Hi in this question A typical intravenous dose of I-125 for a thyroid diagnostic test is 100 u Ci. What is this dosage in megabecquerels (MBq)? (3.7 x 1010 Bq = 1 Ci) my book solved it like this: 100 u Ci * 1Ci/1x10^6uCi * 3.7x10^10/1Ci * 1MBg/1 x 10^6 Bq

Learned about the HBC company, and now have to do a Ad on it. What could my title be? I was trying to look for a good slogan, but I don't know. I don't really want it to be as simple as...."Work for the HBC" I've never actually done an ad before, so I

169. gen/105

• Conduct online research regarding the strongest of your multiple intelligences. Find three Web sites that accurately describe that intelligence. If you identified more than one intelligence, choose one. • Compile the following information: o Links to

170. Pre-Algebra

Okay so I have no clue how to determine if a relation is a function. Here is an example can you tell me how to determine this? D: Example: Determine whether the relation is a function. {(-5,5), (-2,5), (0,5), (2,5)} Thanks in advance

171. math

I need To Know how to do decimals like such as 3/5= 8/10 = 0.8 is that the right answer yes r no

172. math

acouple finances a house valued at \$150,000. They make a \$10,000 down payment and finance the remainder for 30 years at 6.8%. Taxes on the property are estimated to be \$621 per year. Insurance on the property is projected to cost \$685 per year. The monthly

173. Trigonometry

Given that circle A has a radius of 52 and a radii AB and AC form an angle of 132 degrees, find the exact length of BC

174. math

A person hired a firm to build a CB radio tower. The firm charges \$100 for labor for the first 10 feet. After that, the cost of the labor for each succeeding 10 feet is \$25 more than the preceding 10 feet. That is, the next 10 feet will cost \$125, the next

175. calculus

When doing a question such as: What is the area of the region enclosed by the graphs of f(x) = x - 2x^2 and g(x)= -5x? what is an easy way to tell if a function is above or under the other, so I can tell which function to put first in the integral. MUCH

1. Find the following quantities by hand (except for the standard deviation) Check your results with your calculator: a. Minimum b. Lower Quartile c. Median d. Upper Quartile e. Maximum f. Range g. Mean h. Mode i. Standard deviation 2. Is the mean or

177. Physics

Calculate the magnitudes of the gravitational forces exerted on the Moon by the Sun and by the Earth when the two forces are in direct competition, that is, when the Sun, Moon and Earth are aligned with the Moon between the Sun and the Earth. This

178. Algebra

Graph and label the following two functions: f(x)=(x^2+7x+12)/(x+4) g(x)=(-x^2+3x+9)/(x-1) 1. Describe the domain and range for each of these functions. 2. Determine the equation(s) of any asymptotes found in the graphs of these functions, showing all

179. algebra 1

3(2x-5)greater eqal sign x+15 here!

180. math

use the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this 3x + 24y = 24s,27x – 15y = -15 .

181. Math/Probability

For example, you have to pick a donut from a box randomly that has the following six donuts: glazed, plain, sprinkles, double chocolate, chocolate frosted, and jelly. What is the complementary event of getting a plain donut?

182. eth/125

The terms Hispanic and Latino are umbrella terms for people from many different Spanish-speaking cultures in the Western Hemisphere. Although the grouping includes a wide range of cultures there is evidence of the formation of a panethnic identity. What do

183. Math

A plumber spent 0.5 hours repairing a faucet.Which of the following fractions is not equivalent to 0.5? 1.1/2 2.2/4 3.3/5 4.5/10

184. physics

A student flings a 2.3g ball of putty at a 225g cart sitting on a slanted air track that is 1.5m long. The track is slanted at an angle of 25 degrees with the horizontal. If the putty is travelling at 4.2 m/s when it hits the cart, will the cart reach the

185. physics - i need A.S.A.P

A truck traveling at a constant speed of 30.6 m/s passes by a police car which is at rest. The police officer catches up to the truck in 700 m, maintaining a constant acceleration. i)Calculate how long it took the police's car to overtake the truck speeder

186. math

next three terms 1,5,13,29

187. world history

help please.... why was the International Organizations important In history? Whay was the Reconstruction of Europe and Japan important in history?

188. stdfg

A box 5 m long, 2 m wide, and 2 m high applies 12 Pa of pressure to the table that it is resting on. How much force does the box exert?

189. Chemistry

(5 pts) Hexane is a hydrocarbon (a molecule containing only carbon and hydrogen) with a molecular weight of 86.18 g/mol, a density of 0.660 g/mL, and a boiling point of 60C. Pentanol is an alcohol ( a hydrocarbon with a "OH" group attached to one of it's

190. algebra 1 honors

If r=5/3r+20/3, what is r? URGENT!!!!

191. life orintation

discuss 5 ways in which the human or environmental problems impacts on the community?

192. Math

Find the distance between the two points of each pair. Found to the nearest tenth. (1,5) , (5,2) Is the answer 4.5?

193. biology

What is the typical habitat of a human?

194. Chemistry

In chemistry, we did a lab using zinc as the standard and forming galvanic cells with it and another solution. We determined the voltage of each cell. The next step is to form a chart of reduction potentials using zinc as the standard (v=0). How do I do

195. math

Can someone please solve this? x+5=12 x7=35 3=5x(8-3) 12-4+2(3x3)

196. world history

What trends in political organization and economic developments can be identified in 20th century world civilizations?

197. science

on a train traveling at a velocity of 45 miles per hour, ally slows the train down to a stop over a distance of 600 meters. what is the acceleration? (answer in m/s squared)

198. Health Information Technology

What does the term "ethics" mean? With what ethical standards must students comply? Are ethical standards higher for those in the medical profession? Should they be? Why or why not?

199. math

Given the quadratic function f(x) = x2 – 18x + 81, find a value of x such that f(x) = 16.

200. math

Multiply 3x + 3 by -4x2 + 4x – 2 (Points : 20)

201. math

heelp me with scientific nottion

202. Math

Solve for x. 3^(2x)-2*3^(x+5)+3^10= 0

203. social issues

Parent handbooks are generally an expensive, poorly used item that could be dropped from the budget as unimportant.

204. math

use washer method y=-4x+8,y=4x,x=0

205. math

find volume using disc method y=x^2,y=0,x=0,x=5

206. chem

A chemistry lab experiment requires 33.3 g of silver nitrate. How many grams of a 14.1% by mass solution of silver nitrate should be used? _________g Solution

207. math

Use polynomial long division to divide -4x^3 + 24x^2 – 24x + 4 by x^2 – 5x + 1

208. chem

To what volume must a solution of 77.8 g H2SO4 in 479.8 mL of solution be diluted to give a 0.34 M solution? volume=_______L

209. Calculus

Compute f'(e) where f(x)=3^(xlnx)

210. math

Use polynomial long division to divide -4x3 + 24x2 – 24x + 4 by x2 – 5x + 1

211. math

Wats 12yds 2ft + 5yds 2ft

212. History

How did Spain's American colonies help make it the richest, most powerful nation in the world during the 16th century??

Sorry to repost this, again, but I still don't understand. Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be

214. physics

You tie a battery powered, fixed-frequency buzzer to the end of a string and swing it around in a large horizontal circle. Your friend stands well off to the right and listens to the tone. At which of the labeled locations will the buzzer be when your

215. AP World History

What are some differences in North America and Latin America between 1500-1830?

216. Spanish

please help me put these in abc order la fecha domingo marzo lunes abril viernes mayo sabado junio febrero julio septiembre agosto octubre enero noviembre lunes diciembre martes miercoles

217. Life orientation

5 ways in which the human problem impact on the community.provide relevant sources to support your claims

218. math

in 4a and 4c there are same no of girls total there are 56 people in both the classes if 1/3 of people in 4a and 1/4th of people in 4c are girls find total number of girls in both the classes

A survey of Chaicago sports fans asked them 3 questions about which they prefer. Each fan must give exactly 1 answer to each question. Given a choice between the Cubs and White SOx, 40% chose cubs. Between the Bulls and Blackhawks, 57% chose bulls. between

220. History

In the Spanish conquest in the Americas 1492-1580, were the Spaniards allied with the Portuguese?/ and who were the Europeans?

221. English

I really need to know if all the coorections are OK. It is really urgent. 1)The subject of the poem is the description of some soldiers while they are retreating through (toward) their trenches. 2)They should be young and strong but, because of their

222. College Algebra

Determine whether x+6 is a factor of x^3+4x^2-27x-90

223. science

What would happen if the temperature in the Tundra drops 20 degrees farenheit?

224. math

If a stone is tossed from the top of a 250 meter building, the height of the stone as a function of time is given by h(t) = -9.8t2 – 10t + 250, where t is in seconds, and height is in meters. After how many seconds will the stone hit the ground? Round to

225. american government

a member of Congress who votes based on the wishes of his or her constituentsoperates in which of the following roles? a.trustee b.delegate c.partisan d.politico

226. math

Use the discriminant to determine whether the following equations have solutions that are: two different rational solutions; two different irrational solutions; exactly one rational solution; or two different imaginary solutions.8x2 + 2x + 4 = 0

227. Math

How do I solve a problem like this: p^3m^2/7 + p^2m^3/21 - p^4m/14 Can you please help?

228. Math

verify the following identity used in calculus: cos(x+h)-cos(x)/h=cos(x)[cos(h)-1/h]-sin(x)[sin(h)/h]

229. Math BOBPURSLEY HELP HELP HELP HELP

Law of Gravitation- Find an expression for the magnitude of the initial velocity that a projectile must possess in order to leave the earth when air friction is neglected. The gravitational constant for g is, G = 6.67428*10^-11 m^3 Kg^-1 s^-2 Please answer

230. physics

How will the current in a wire change as the wavelength of light changes? I have no idea how to do this.

231. vocabulary

what is self delusion? the definitions online are very confusing..Can someone explain it to me in simpler terms. Also would depression be a form of self delusion?

232. world history

please can Someone help me on this... What was the causes, what happened, and its final outcome of the Yom Kippur war 1973?

233. math

Subtract; then reduce answer to lowest terms.5/22- 1/41

234. Real Estate Finance

A developer is interested in a parcel of land for a small mixed use development. Similar developments are worth \$15 million and require the following sequential investments to complete: Phase Description 1 Purch. land, permitting, utilities 2 Build retail

235. math

I have 2 draw a set of 12 circles:Color 5/12 of set blue, 1/3 of set red, &1/6 of set green. Not grasping the concept.

236. English

Thank you very much. Could you please help me check these sentences? 1)In the second stanza there is the description of a gas attack toward the trenches: a white fog raises up suddenly. While the poet manages to wear the gas mask, someone isn't fast

237. English

I forgot to include these phrases I'd like you to check. 1) Dorian accepts to be portrayed by Basil Dorian is manipulated by Lord Henry to persue eternal beauty. 2) He loses his morality and commits bad actions becoming corrupt. When he sees the portrait

238. com155

I recently decided to apply for a credit card. I have absolutly no credit. When I received my new credit card I was extremely excited. I thought I was going to be responsible with my new credit card but I was not. The first thing I did was go to the mall.

239. math

3 fair dice are tossed. Find the probability of dice showing at most one 6

1. Newman decided to rent his home at 32nd and Chestnut Streets. On January 2, 2010, he met with Kramer to discuss terms of a two year lease. Kramer noticed that there were no air conditioning units in the home. He told Newman that he would not rent the

how do you reduce 15/20 and 8/20?

242. Chemistry

The (water, hydrocarbon)______ creates a cage where the water is the (host, guest)______ for/of the hydrocarbon.

243. English

Thank you. Could you check these other sentences. 1) Dorian Gray envies the figure in the portrait becaue he wishes he would stay young forever. 2)He says he would give his soul to be young forever as the painting would be. (like the portrait?) Lord Henry

244. Chem12

Calculate Kp for the reaction N2(g) + 3 H2(g)--> 2 NH3(g) given that the reaction has Kc = 438,880,639 at a temperature of 265.

245. organic chemistry

calculate the pH of a 1.25 x 10^-3 M HNO3 solution

246. calculus

find the point on the parabola (y=x^2) that is closest to the point (0.75,0)

247. Chem19

Determine ΔSuniv in J/K at a temperature of 272 K given ΔHrxn = 77 kJ and ΔSrxn = 162 J/K.

248. physics

How does a wavelength of the fourth harmonic on a rope with both ends fixed compare with that of the second harmonic? Please show all work Thank you

249. math

Joe has a collection of nickels and dimes that is worth \$8.55. If the number of dimes was tripled and the number of nickels was decreased by 2, the value of the coins would be \$23.45. How many nickels and dimes does he have?

250. physics

Sound waves in iron have a speed of about 5100 m/s. If the waves have a frequency of 400 Hz, what is their wave length? I am thinking it is 12.75 v/f 5100/400 is 12.75 m Is this correct. Thank you

251. physics

Does increasing the tension of the string affect the wavelength of the fundamental standing wave on a guitar string? Plese show all work Thank you

252. physics

How will the current in a wire change as the wavelength of light changes? I have no idea how to do this.

253. Math

Can someone explain the sine rule please?

254. math

use the shell metho to fin the volume of the solid generate by revolving the region boune by the given curves an lines about the x-axis x=3sqrty,x=-3y,y=1

255. Physics Urgent!!!!!

OK, I know, I'm postin this way too many times but I'm halfway there now.... Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational

256. algebra

how do i work 2x+3[4-(3x-7)]

257. chemistry

Hi in this question A typical intravenous dose of I-125 for a thyroid diagnostic test is 100  Ci. What is this dosage in megabecquerels (MBq)? (3.7 x 1010 Bq = 1 Ci) my book solved it like this: 100 u Ci * 1Ci/1x10^6uCi * 3.7x10^10/1Ci * 1MBg/1 x 10^6

258. math 140

Break-Even Analysis and Cost Analysis: As a first-time homeowner, there are going to many decisions that you need to make, such as whom to hire for the upkeep of your lawn. You have just received advertisements from 2 companies in your area: Greener Lawns

259. Calculus

What is the antiderivative of the cube root of (x^2)+2

260. social studies

what is capitol

261. College math

What is the probability without replacement of drawing at least one ten (52 card deck)?

262. Calculus

What is the antiderivative of the cube root of (x^2)+2

263. History

What would be some main key points that would relate to the social life during the Spanish Conquest?

264. math

Given that 2x + 7 greater than 11, x cannot be equal to?

265. math

if y equals x ( x +3) then 3 y equals

266. physics

You tie a battery powered, fixed-frequency buzzer to the end of a string and swing it around in a large horizontal circle. Your friend stands well off to the right and listens to the tone. At which of the labeled locations will the buzzer be when your

267. chemistry

How is salt nd hydrogen produced

268. grammar and writing

what is the adverb in this sentence: pete sometimes pretends he is a strong, silent cowboy.

269. physics

james made a very nice play on 13 hole on 2011 master's open. he made driver shot with initial velocity 200 m/s. the ball has a mass of 46g. its lunching angle is 28 degrees from the ground. draw the trajectory (x-y graph) with and without air resistance.

270. healthcare

whatr are the general effect that changing demographics may have on the health care market?

271. Science

Which radiation causes cancer? I think it is UV radiation, but I'm not sure. Also, A wave goes up and down 5 times in 10 seconds. what is the frequency of the wave in cycles per second (Hertz)

272. Law

Colonial punishments: what punishments do you think were the most effective in preventing further crimes, and which do you think were merely for revenge and punishment? Explain rationale.

273. Computers

How does a search engine work? List the four main parts of an e-mail header.

274. math

-1 minus 8 equals? is 7 the correct answer

275. Math

Will someone help me with factoring?

276. chappell

what is the lattice method for 2 times 46

277. SCIENCE

THE PROCESS THAT USES ELECTRICITY TO DECOMPOSE CHEMICAL COMPOUNDS/ PREPARE NEW CHEMICAL COMPOUNDS

278. Chemistry

what is the theoretical yield of Sodium Hydroxide

why does the equation x^2=-9 has no real solution why does the equation x^2 = 9 has two solutions

280. Accounting

The SOO Company has machinery that it acquired a number of years ago at a cost of \$812,000. As of December 31, 2012 the company has recorded life-to-date depreciation in the amount of \$332,900. Because of changes in their manufacturing processes, the

281. chemistry

how much heat is required to vaporise 2 litres of ethanol

282. history

compare democracies of jefferson and jackson

283. science

Which radiation causes cancer? I think it is UV radiation, but I'm not sure. Also, A wave goes up and down 5 times in 10 seconds. what is the frequency of the wave in cycles per second (Hertz)

284. MATH HELP

Law of Gravitation- Find an expression for the magnitude of the initial velocity that a projectile must possess in order to leave the earth when air friction is neglected. The gravitational constant for g is, G = 6.67428*10^-11 m^3 Kg^-1 s^-2 Please answer

285. Math

The area of square JKLM is 25 square units. How many units is the length of one of the sides?

286. Physics Urgent!!!!! I really need help with this

Sorry to repost this, again, but I still don't understand. Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be

287. math

Rule In Out % 24 9

288. MATH QUICK THANKS

IT COSTS JUST PANTS \$12.50 TO MAKE A PAIR OF JEANS. THE JEANS ARE SOLD IN STORES FOR \$20.00 FIND THE PERCENT OF INCREASE THE MANUFACTORING COST TO THE PRICE IN STORES I THINK THE ANSWER IS %60

289. Chem4

For the reaction A + 1/2 B --> 2 C, when C is increasing at a rate of 0.018 M/s, how fast is B decreasing?

290. home economics

In 10-15 line critically 5 ways in which the human or environmental problem impacts on the community.an relevant sources to support your claim

291. physics

Electric power is found by multiplying ___ by current. volts? potential difference? The kilowatt hour is a unit for measuring ___. energy or electrical energy Thanks

292. algebra

i cannot figure out how to simplify the square root of 6/7 times the square root of 1/3. please help!!!

293. healthcare

How can the individual patient, the community, and society as a whole address these challenges of demographics?

294. social issues

True or False Teachers who are uncomfortable with others from diverse backgrounds should just find employment in situations where they will not have to interact with diversity.

295. Social Studies (quick thanks)

i need a gas or oil current event for april 3oth or may1st

296. Special Education

3.Given a favorite toy that Shimon manipulates or explores for 1 minute, 4/5 times. How could I change the above objective into a clear behavioral IEP goal?

sqrt(5/3)

298. math

a nickle is what percent of a dollar

299. French

I have to construct a sentence in the passive indicative. I googled "French Passive Indicative" and everything was in Latin, not in French. Could you provide me with an example of how to write in the passive indicative?

We're learning arithmetic sequences-please check this for me-it's my first day calcuulating htese and I'm not sure If t(1) = 5 and t(n) = t(n-1) + 2, find the first 4 terms of the sequence I think it would be 5,7,9,11 because the difference is 2 so I just

302. maths

Can you tell me how you arrive at the answer to this question: if you multiply meby2, I become a number greater than 20and less than 40. If you multiply me by 6 I end in 8. If you multiply me by4,I end in 2.

303. history

what is the watergate

304. math

Multiply; then reduce to lowest terms. 5 1/2.3/4

305. Social Issues

Another professional mandate to work with families is offered in A) most colleges of education B) the Code of Ethics C) the handbook of most programs D) the Family Medical Leave Act

k=2c-9d/8

307. Life orientation

Name two institution organization that are involved in supporting or giving redress to these disaster.Eplain how these organisation are involved in providing a safe and healthy environment.(suggestion:Find about NG0's or other organisations in your

308. English

Can you please check these sentences? I'm really doubtful about them. Thank you. 1) Look at the timetable on the departure board to see if your flight is delayed or if it is on time. 2) Then go to the check-in desk of the company you are travelling with.

309. Physics Urgent!!!!! I really need help with this

Sorry to repost this, again, but I still don't understand. Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be

310. Math

How do you find out what percent one number is of another????

311. History

The Spaniards in the Americas in 1492-1580 had dogs. when they were in battle what did the dogs do for them?

312. social studies

Why do people need government?

313. physics

What is the period of the hand on a clock that measures the minutes? What is the frequency? Please show work, Thank you, Abbie

314. math

How do you find out what percent one number is of another?

315. physics

A box of unknown mass is placed at rest at the top of a 3m long ramp that is inclined at 30 degrees, and it slides to the bottom in 2s. What is the acceleration of the box, what is the coeff of kinetic friction between the box and the plank?

316. math

Solve 12x-25¡Ý3x-5(x+6) using set builder notation

317. Math

Rule In Out % ? 24 9 25% 44 ? To find out the unknown numbers with explanation?

318. Math

1,2,9,9,10,11,n range:13 mode:9 median:9 mean:8 Find n.

319. FRENCH

*Des vacances speciales* Pensez à des vacances spéciales (ou imaginaires) avec votre famille ou vos amis. Faites une série de dessins qui montrent, en ordre, les activités spéciales. (Vous pouvez aussi utiliser des photos.) enfin, sous chaque dessin,

320. math

What is an improper fraction for 1 3-? 7

321. physics

How does a wavelength of the fourth harmonic on a rope with both ends fixed compare with the lenght of the rope?

322. Chemistry!!! Help!

Which of the following types of intermolecular forces tend to be the weakest? Induced dipole-induced dipole forces Dipole-dipole forces Covalent bonding Dipole-induced dipole forces Hydrogen bonding

323. Chem20

Determine ΔG in kJ at a temperature of 261 K given ΔHrxn = 91 kJ and ΔSrxn = 151 J/K.

324. Math

(u+4)cubed + 80=0

325. chemistry

500 grams of water at 0 degrees C was heated to a boiling in a large pot. how much energy was needed? what was the temperature change and Heat energy