# Questions Asked onJanuary 24, 2010

1. ## physics!

tarzan tries to cross a river by swinging from one bank to the other on a vine that is 10.0 meters long. his speed at the bottom of the swimg is 8.0 meters/second. Tarzan does not know that the vine has a breaking strnght of 1000 newtons. what is the

2. ## physics

a 2000 kg car rounds a circular turn of radius 20.0 meters. if the road is flat and the coefficient of static friction between the tires and the road is .70, how fast can the car go without skidding

3. ## chemistry

how many grams of HNO3 can be produced if 225 grams of NO2 is mixed with 55.2 g of H2O? 3NO2 + H2O=2HNO3 + NO

4. ## physics

A car travels due east with a speed of 35.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 40.0° with the vertical. Find the velocity of the rain

A snail climbs up a wall 20 feet high. Each day the snail climbs 5 feet, but each night it slips backwards 4 feet. How many days will it take for the snail to get to the top of the wall?

6. ## math

A machine has four components, A, B, C, and D, set up in such a manner that all four parts must work for the machine to work properly. Assume the probability of one part working does not depend on the functionality of any of the other parts. Also assume

7. ## college chemistry

Given that the heat of fusion of water is -6.02 kJ/mol, that the heat capacity of H2O(l) is 75.2 kJ/mol*K and that the heat capacity of H2O(s) is 37.7 kJ/mol*K, calculate the heat of fusion of water at -11 K.

8. ## Vibration and Waves

1. A girl on a playground swing makes a complete to-and-fro swing each 2 seconds. The frequency of swing is 1. (0.5 hertz) 2. (1hertz) (ANSWER) 3. (2 hertz) And the period is (FROM THE QUESTION BEFORE) 1. (0.5 seconds) (ANSWER) 2. (1 second) 3. (2 seconds)

9. ## Physics

Estimate the terminal speed of a wooden sphere (density 0.770 g/cm3) falling through air, if its radius is 9.00 cm and its drag coefficient is 0.500. (The density of air is 1.20 kg/m3.) (b) From what height would a freely falling object reach this speed in

10. ## Organic chemistry

is benzoic acid soluble in water, 1.0M NaOH, 1.0M HCl?

11. ## Organic chemistry

Is m-nitroaniline soluble in water, 1.0M NaOH, 1.0M HCl?

12. ## physics

Mayan kings and many school sports teams are named for the puma, cougar, or mountain lion Felis concolor, the best jumper among animals. It can jump to a height of 13 ft when leaving the ground at an angle of 40.4°. With what speed, in SI units, does it

13. ## chemistry

Use Henry's law and the solubilities given below to calculate the total volume of nitrogen and oxygen gas that should bubble out of 1.8 of water upon warming from 25degree C to 50degree C . Assume that the water is initially saturated with nitrogen and

14. ## chemistry

Celeste's diet restricts her intake of protein to 24 g per day. If she eats 1.2oz of protein, has she exceeded her protein limit for the day?

15. ## physics

In the Millikan oil drop experiment, an atomizer (a sprayer with a fine nozzle) is used to introduce many tiny droplets of oil between two oppositely charged parallel metal plates. Some of the droplets pick up one or more excess electrons. The charge on

16. ## physics

An astronaut on a strange planet finds that she can jump a maximum horizontal distance of 15.0 m if her initial speed is 2.40 m/s. What is the free-fall acceleration on the planet?

17. ## English

“Harlem” What happens to a dream deferred? Does it dry up like a raisin in the sun? Or fester like a sore— And then run? Does it stink like rotten meat? Or crust and sugar over— like a syrupy sweet? Maybe it just sags like a heavy load. Or does it

18. ## Physics

Estimate the terminal speed of a wooden sphere (density 0.770 g/cm3) falling through air, if its radius is 9.00 cm and its drag coefficient is 0.500. (The density of air is 1.20 kg/m3.) (b) From what height would a freely falling object reach this speed in

19. ## Physics

A 10,000 kg railroad car traveling at a speed of 24.0 m/s strikes an identical car at rest. If the cars lock together as a result of the collision, what is their common speed afterward?

20. ## Trigonometry

A little boy is flying a kite. The string of the kite makes an angle of 30 dgrees with the ground. If the height of the kite is h equals 15 m, find the length (in meters)of the string that the boy has used.

21. ## chem

why do elements in the same family generally have similar properties?

22. ## Physics

The following values are the only allowable energy levels of a hypothetical one-electron atom: E6 = =2 X 10^-19 J E5 = -7 X 10^-19 J E4 = -11 X 10^-19 J E3 = -15 X 10^-19 J E2 = -17 X 10^-19 J E1 = -20 X 10^-19 J A) If the electron were in the n = 3 level,

23. ## science

Expain why,it is easier to break an egg by stricking at the flat side, other than at the pointed edges.

24. ## Physics E&M

An electron is released from rest on the axis of a uniform positively charged ring, 0.100 m from the ring's center. If the linear charge density of the ring is +0.149 µC/m and the radius of the ring is 0.200 m, how fast will the electron be moving when it

25. ## Physics

A 10,000 kg railroad car traveling at a speed of 24.0 m/s strikes an identical car at rest. If the cars lock together as a result of the collision, what is their common speed afterward?

26. ## check and correct public speaking

1. (TCO5) According to the text, non-verbal communication is: My Answer D continuous, emotional, ambiguous and both intentional and unintentional ambiguous, multi-channeled, intentional and both continuous and sporadic continuous, multifaceted, emotional

27. ## physics

the force exerted by a spring increases as the spring stretches. imagine that you attach a heavy object to one end of a spring and then, while holding the springs other end, whirl the spring and object in a horizontal circle. does the spring stretch.

28. ## physics

Correct the following statement: The racing car rounds the turn at a constant velocity of 145 km/hr.

29. ## math

The equation 9c-5f+160=0 describes the relationship between temperature, C, in degrees Celsius, and temperature, F, in degrees Fahrenheit. b)graph this relation.

30. ## Calculus

Prove that the average of LRAM and RRAM is equal to TAM.

31. ## Algebra 2

a computer manufacturer needs to change the dimensions of its foam packaging for a new model of computer. the width of the original piece is three times the height, and he length is equal to the height squared. The volume of the new piece can be

32. ## physics

Mayan kings and many school sports teams are named for the puma, cougar, or mountain lion Felis concolor, the best jumper among animals. It can jump to a height of 13 ft when leaving the ground at an angle of 40.4°. With what speed, in SI units, does it

33. ## college chemistry

An aspirin tablet weighing 0.502 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric flask. Exactly 3.00 mL of

34. ## Statistics

70% of the student body of a very large post-scondary institution is female. In a random sample of 12 students, what is the probability that: a) at most half will be females b) more than 7 will be females c) fewer than 3 will be males I used the Table of

how might opportunity cost help to explain tha pattern of international trade?

36. ## Physics

You are on a train that is traveling at 3.0 m/s along a level straight track. Very near and parallel to the track is a wall that slopes upward at a 12° angle with the horizontal. As you face the window (0.86 m high, 2.1 m wide) in your compartment, the

37. ## chemistry

A 1.10- sample contains only glucose and sucrose . When the sample is dissolved in water to a total solution volume of 25.0 , the osmotic pressure of the solution is 3.78 at 298 .

38. ## Physics

When a solid wheel rotates about a fixed axis, do all of the points of the wheel have the same tangential speed?

39. ## physics

A fly lands on one wall of a room. The lower left-hand corner of the wall is selected as the origin of a two-dimensional Cartesian coordinate system. The fly is located at the ...

40. ## Math 156

A child's dose of medicine is 16 of a pre-measured dose cup. If the bottle of medicine is the size of 9 dose cups, how many children's doses are there in the bottle?

41. ## Physics

Describe the path of a moving body whose acceleration is constant in magnitude at all times and is perpendicular to the velocity.

42. ## math

A police department reports that the probabilities that 0,1,2, and 3 burglaries will be reported in a given day are .51, .44, .04, and .01, respectively. Find the expected number of burglaries reported in a given day. How do I figure this out? I simply do

43. ## Finite

Assume that the producer has 8 skits and 5 commercials available. In how many ways can the producer create a television show?

44. ## physics

how does the gravitational force exerted by earth on the sun compare with the gravitational force exerted by sun on the earth? and would you expect tides to be higher at the equator or at the north pole? why?

Why did many people in mecca reject muhammad's ideas at first?

46. ## chemistry

A 1.10g- sample contains only glucose and sucrose . When the sample is dissolved in water to a total solution volume of 25.0ML , the osmotic pressure of the solution is 3.78atm at 298K a.What is the percent by mass of glucose in the sample? b.What is the

47. ## Chemistry

Select all cases in which the units comprising the solid are best classified as molecules. CrSe C2H2 CS2 C2H4 Cs2S Cl2O7 None Help please? I think they're all molecules

48. ## Trigonometry

A crow is on the ground 80 feet from the base of a 45 foot tall tree. It then flies straight throught the air to the top of the tree. What is the angle of the crow's flight path relative to the ground ?

49. ## trig

Verify the trigonometric identity: [(1–sin²x)/sin²x]–[(csc²x–1)/cos²x]= -tan²x I still can't figure this out.

50. ## Physics

The mass of a car is 2400 kg. the constant power supplied by the engine is 60 kW and the car starts from rest. What is the speed of the car at the end of 2 seconds?

51. ## calculus

Solve for all real values of x. 3tan^2x = 3^1/2 tan x I have no idea how to approach this problem.

52. ## Finance

Cooper Inc's latest EPS was \$4.oo, its book value per share was \$20.00, it had 200,000 shares outstanding, and its debt ratio was 40%. How much debt was outstanding? a. \$2,333,333 b. \$2,666,667 c. \$3,000,000 d. \$3,333,333 e. \$3,666,667

Four billion years ago the Sun’s radiative output was 30% less than it is today. (i) If we assume the radius of the sun is the same, and that the Earth’s atmosphere was the same as it is now (that is, the atmosphere absorbs 10% of the incoming solar

54. ## communication

As such, each department has a different perspective on how to get things done, and what to get done. they have developed, hopefully, well defined policies procedures, as well as specific processes in order to ensure that their work gets completed in an

55. ## social studies

How does italy's geographical features affect its economy?

56. ## marketing

There are four Ps in marketing. These are Price, Product, Promotion, and Place. Choose a product or service with which you are familiar. Describe the product or service. Then, in your own words, describe the 4-P decisions which would be important when

57. ## physics

a perpetual motion machine is a machine that, when set in motion, will never come to a halt. why is such a machine not possible?

58. ## Finance Anaylsis

If a firm is expected to have a profit margin of 8 percent but trades at a price to sales ratio of 25, what inferences would you make?

59. ## chem

Species of arsenic found in kriking water include (AsO3)3-, (CH3)2(AsO2)2-, (CH3)AsO3 2-, and (AsO4)3-. Pure water containing no arsenic was spiked with 0.40microgram arsenate/L. Seven replicate determinations gave 0.39, 0.40, 0.38, 0.41, 0.36, 0.35 and

60. ## PHYSICS

Four billion years ago the Sun’s radiative output was 30% less than it is today. (i) If we assume the radius of the sun is the same, and that the Earth’s atmosphere was the same as it is now (that is, the atmosphere absorbs 10% of the incoming solar

61. ## PHYSICS!!!

iN THE EQUATION FOR THE MAGNITUDE OF TORQUE, WHAT DOES THE QUANTITY d sin radians represent.

62. ## chemistry

if 4.36g of a hydrate of the salt baCl2 is heated and in the process losses 0.6431g of mass, show all your work to calculate the amount of water X in the hydrate, BaCl2.XH2O

63. ## Physics

A machine is used to either do work or to convert energy. To find the efficiency of a machine, one must compare the power input to the machine to the power output of the machine. What does thepower take into account in addition to the amount of work done

64. ## algebra

A 30ft. cable is cut into 2 pieces. One piece is twice as long as the other piece. Find th length of each piece of the cable.

65. ## chem

why does fluorine have a higher ionization energy than iodine?

66. ## algebra

the circle to the right has 21 points. All possible line segments have been drawn. How many line segments are there?

67. ## Vibration and Wave Fundamentals

Vibration and Wave Fundamentals 1. A machine gun fires 10 rounds per second. The speed of the bullets is 300 m/s. (A.) What is the distance in the air between the flying bullets? ____ ANSWER=30 (B.)What happens to the distance between the bullets if the

68. ## college physics

The electric field near the surface of a uniformly charged conducting plane can be determined by Gauss's law. If the plane is a square of sides 11.5 cm and carries a charge of 22.0 nC (that's nanocoulombs), what is the magnitude of the electric field near

69. ## Chemistry

Assuming it behaves as an ideal gas, calculate the temperature of a sample of He whose molecules have an average translational kinetic energy of 1.14E-23 kJ/molecule.

70. ## Conflict Management Communications

Think of a recent conflict, and now create a metaphor or figure of speech (simile) that summarizes the experience of it. What aspects of the experience does the metaphor emphasize? Does it focus on constructive or destructive aspects of the event or

71. ## algebra

tains A and train B are travling in the same dicrtion on a parral track train A is traving 60 mph and train B is traviling 70 mph train A passes a staion at 11.15 am and train B passes the same station at 11.45 am at what time will train B catch up to

72. ## biochem

When making Aspirin, I know that sulfuric acid is used as a catalyst. But i was wondering 1.) if the reaction would happen without the cataylst and 2.) can other substances be used as a cataylst in this reaction?

73. ## pure maths

use trapezium rule with 3 intervals to estimate the value of intergrating x=0 and x=3 squarerooting 1+xsquared

74. ## Science

Engineering Science Project ideas and some thing cool interesting and new not that has been popular as a science project!!!!!!!!!!!!! Plz!!!!!!!!!!!!!!

75. ## eng gr 9

hi I have an exam tomorrow in english and our teacher told us the exam is writing an essay on either curious case of the dog in the night time or midsummer's night dream. I have studied for both the play and the novel the themes, character analysis, way to

76. ## social studies

!@#\$%^&presented Linda Brown in the court case Brown vs. Board of Education of Topeka?

77. ## PHYSICS

Consider a one layer atmosphere for the planet Venus. 19% of incoming solar radiation is absorbed by the atmosphere. 99% of the outgoing radiation is absorbed by the atmosphere. The incoming radiation, E, as measured by satellite is 615 Wm-2. 1) Derive two

78. ## algebra

Four pears and two apples cost \$1.96. Three apples and three pears cost \$2.10. Find the cost of 1 apple and 1 pear.

79. ## chemistry

If 4.36g of a hydrate of the salt baCl2 is heated and in the process losses 0.6431g of mass, show all your work to calculate the amount of water X in the hydrate, BaCl2.XH2O

80. ## math

Describe what happens to the three points of concurrency that determine the Euler line when the triangle is (a) isosceles, (b) equilateral.

the best estimate to measure a desk. i put ruler and meter

82. ## physics calc based

In the product F = qB (vectors), take q = 2 (neglecting the units of charge, q) and v = 2.0 i + 4.0 j + 6.0 k and F = 4.0 i + (-20 j) + 12 k . What then is B in unit-vector notation if Bx=By ?

83. ## math

find the midrange of these: 1.5, 2.5, 3.0, 1.0, 1.4, 3.5, 1.8, 1.8, 3.3, 2.2, 2.8, 1.8 I thought you take the highest - the lowest and then divide by 2, but the answer I get is not one of the choices. Show me the formuula please? Thanks!

84. ## algebra

Translate to an inequality. The average speed, s, was between 100 and 110 mph. Translation: 100_ s _ 110

85. ## physics

A ball is kicked at ground level with a speed of 15.0 m/s at an angle of 35.0° to the horizontal. How much later does it hit the ground?

86. ## chemistry

Which of the following minor products could not arise from the halogenation reaction below? a)2,5 dimethylhexane b)2 bromo-2 methyl propane c)1,3 dibromo, 2 methyl propane d) 2,4 dimethylhexane e)2,2,5 trimethyl pentane plz can someone help me...i kno its

87. ## chemistry

what is the difference between electron affinity and ionization energy?

88. ## chemistry

im doing a lab on le chatelier's priciple and the question is 'describe what you observe when the saturated solution of sodium chloride was stressed by the addition of CL- ions, write the ionic equation and explain how le chatelier's principle is applied

89. ## Trigonometry

You are stationed at a radar base in Warner Robins, GA and you observe an unidentified flying object at an altitude of 2000 m flying towards your radar base at an angle of 20 degrees. How far away from the radar base is that plane (hypotenuse)?

90. ## PHYSICS

Can a car move around a racetrack so that it has tangential acceleration byt no centripetal acceleration?

91. ## math

how do I solve 1/3 x = 5/12

92. ## Trigonometry

Two men on the same side of a tall building notice the angle of elevation to the top of the building to be 30 dgrees and 60 dgrees respectively. If the height of the building is known to be h equals 60 m, find the distance (in meters)btween the 2 men.

Cathy takes the bus home from work. In her hand she holds a 2 kg cake box, tied together with a string. As she ascends the steps into the bus,the box accelerates upward at a rate of 2.5m/s^2. what is the force exerted on the string? Fg=ma =2*9.8 =19.6N

94. ## algebra 1

Solve each linear system by substitution method. x+2y=7 2x+4y=8 I'm getting stuck. Could some one explain the work out process and what the outcome means?

95. ## physicsss

Phobos is the larger and closer of Mars’s two moons. It has no atmosphere, a mean radius of 11 km, an albedo of 0.07, and an emissivity of 1.0. (i) Assuming that the radiative temperature of Phobos is 222 K and that it is spherical, what is its mean

96. ## English

I was wondering if someone could tell me how I can improve my thesis statement/opening paragraph. I'm writing an essay on hamlet from the perspective of formalism (examining a work of literature's language and structure). Here it is: Formalism is a type of

97. ## algebra

a)using intercepts, graph the three lines 4x + y - 8=0, 2x - y - 4=0, x + 2y - 16 = 0

98. ## Stats

The distribution of SAT verbal scores of University X's incoming freshman class (N=950) has a mean of 475. What is the value for the sum of deviation scores from the mean of this distribution?

99. ## Science

what is the difference between RNA and DNA?

100. ## Trig

Let O represent the origin and P be the point (9, -4). Find the positive angle (counterclock wise direction)that the line segment OP makes with the positive x-axis. the answer is 5.86 radians but i keep getting 0.418 radian. please help and show work

101. ## calculus

A ship is running at 14 3/4 knots (nautical miles per hour) for 7 1/2 hours. How far does the ship travel?

103. ## math/probability

Assume that the weight loss for the first two months of a diet program has a uniform distribution over the interval 6 to 12 pounds. Find the probability that a person on this diet loses more than 11 pounds in the first two months.

104. ## organic chemistry

How would using sodium fluoroacetate instead of sodium chloroacetate affect the reaction? This experiment was to synthesis of plant hormone. and If sodium iodoacetate is used instead of sodium chloroacetate, how will the rate of reaction be affected?

105. ## biology

How does the orientation of the phospholipids in the bilayer allow a cell to interact with its internal and external environment?

106. ## English

What is the modifier of the prepostional phase and what kind of prepostional phrase is it? Adverb or Adjective? 1. Its invention in 1978 revolutionized technology. 2. The microwave oven was invented in 1946.

107. ## Trig

2cos^2Beta-Cosbeta=0 (find all solutions for the equation in the interval 0, 2 pi). I have no idea how to go about doing this. Do you isolate the beta on one side? Would you be able to show me how and I'll solve for you to check?

108. ## Trigonometry

A=30 degrees, a=9 and b=8. Find the missing sides/angles. I did cos39=x/8 and reduced that to 8cos39=x. I got 6.92. But that's not a valid answer, so I can't go from there. What did I do wrong? Can you show me how to get the other answers as well, please?

109. ## Algebra

A woman driving a car 14 ft long is passing a truck 30 ft long. The truck is traveling at 50 mi/h. How fast must the woman drive her car so that she can pass the truck completely in 6s?

110. ## English I

Respond to the question presented by the poet. "..if there were a fire in a museum which would you save, a Rembrandt painting or an old woman who hadn't many years left anyhow?" Explain your answer. "Ethics" In ethics class so many years ago our teacher

What is each branch of government responsible for?

112. ## Physics

This is a pretty simple physics problem, but I do not know how to go about it. How do I: Show that the time required for a projectile to reach its highest point is equal to the time for it to return to its original height?

113. ## spanish 2

Which question is addressed to "usted" (talking to someone with formal respect)? Con quien hablaste? ¿De qué hablaste? ¿Cuánto tiempo estuviste en el teléfono? Que compraste en la tienda? ¿Que hiciste después ¿Te dormiste al colgar el teléfono? Te

114. ## Biology

Need help with these two: 26. Why do plant cells contain both choroplasts and mitochondria? a. in the light, plants are photosynthetic autotrophs. In the dark, they are heterotrophs. b. if plants can't produce enough ATP to make sugars during

115. ## Physics: fictitious forces

A plumb bob does not hang exactly along a line directed to the center of the Earth's rotation. How much does the plumb bob deviate from a radial line at 39.0° north latitude? Assume that the Earth is spherical. This was in my textbook with an angle of 35

116. ## Geology

Can someone help me with these questions I have some material for them but not enough. • First-- Compare and contrast the geological features of a desert landscape and glacial landscape. Describe at least one process that creates the resulting landforms

117. ## math

How do I find a variance for a set of numbers {1,16,8,17,12} I got that variance-34.2, but I'm unsure. Any help? Thanks.

118. ## Algebra 209

the perimeter of rectangle back yard is 6x+6 yards if the width is x yards find a binominal that represents the length.

119. ## chemistry

Which of the following minor products could not arise from the halogenation reaction below? isobutane + Br2 ----> 1-bromo-2-methyl propane + HBr + minor products a)2,5 dimethylhexane b)2 bromo-2 methyl propane c)1,3 dibromo, 2 methyl propane d) 2,4

120. ## PHYSICS

ANOTHER QUICKQUESTION ABOUT THIS ONE, PLEASE HELP pete and john play a game of tug war on a frictionless icy curface. pete weighs 539 N and john weights 392 N. during the course of the game, john accelerates toward pete at a rate of 3 m/s^2. Sarah decideds

121. ## reiny

How do I find a variance for a set of numbers {1,16,8,17,12} I got that variance-34.2, but I'm unsure. Any help? Thanks. math - Reiny, Sunday, January 24, 2010 at 8:16pm look at his page. Reiny - April, Sunday, January 24, 2010 at 8:25pm I looked at that

122. ## College Physics

Now we also know that the charge on a pair of parallel plates is proportional to the potential difference V, namely q=CV. We also know that the capacitance of two parallel plates is given by C=ε0A/d, where ε0=8.85×10-12 is the permittivity of free space

123. ## college physics

Let's say that you find a slope of 6.671×10-14 for square plates of width 11.5 cm. What do you get for the value of the permittivity of free space?

124. ## physics

As a result of doing work a person supplies a machine with 1100 J of energy in 12 seconds. The machine in turn does work and delivers 900 J of energy in 14 seconds to some object. what is the effiecency of this machine?

125. ## French/Sra

J'ai besoin de nouvelles chaussures noires. Je vais en avoir besoin pour la gym. J'ai besoin d'une nouvelle tee-shirt rouge. J'ai besoin d'un nouveau jean bleu. J'ai besoin des nouvelles sandales blanches. J'ai besoin d'une nouvelle robe noir. I need one

126. ## Literature

If in Shakespeare's time, the women roles were played by trained boy actors, how did they do romantic scenes? For example, the balcony scene in Romeo and Juliet or when they had to kiss? Thanks -MC

127. ## biology

__________________ charcters show many degrees of variation because they result from the additive effects of several ____________. Many human conditions are complex because they are influenced both by ___________ and by ___________. If two genes cross

129. ## organic chemistry

Which of the following minor products could not arise from the halogenation reaction below? isobutane + Br2 ----> 1-bromo-2-methyl propane + HBr + minor products a)2,5 dimethylhexane b)2 bromo-2 methyl propane c)1,3 dibromo, 2 methyl propane d) 2,4

130. ## math

find the worlds production of nickel in a year when russia and new caledonia together produced 1/3 of it,canada 1/6 of it,and australia 1/9 of it, and the rest of the world 420,000 tons

131. ## chemistry

can u help me on these questions? 1) describe the development of the modern periodic table. include contributions made by Lavoiser, Newlands, Mendeleev, and Mosely. 2) describe the general characteristics of metals, nonmetals, and metalloids. 3) identify

132. ## algebra

How do I writeeach decimal as a fraction in simplest form?

133. ## Math

Express the given quantity in terms of the indicated variable. The interest obtained after one year on an investment at 2 1/2% simple interest per year; x = number of dollars invested

134. ## Chemistry

Select all cases in which the attraction between units in the solid can best be classified as individual atom induced dipole forces. Y2O3 NH3 H2S ZnBr2 Cu KrF4 None I honestly do not know what to do. I know dipole dipole is positive and negative but this

PLEASE HELP - NOBODY ANSWERED MY QUESTION YESTERDAY. sue drives her 1452 kg car along a straight road at a constant velocity of 30 m/s [E]. Ger brakes suddently give out. she puts the car in neutral and lets it coast for 25 seconds. The air drag

136. ## Math

How would you graph the inequality x > -5

137. ## science project

I have a magnet on top of my hand and a steel screw underneath my hand and there is attraction. If I give it to an adult it doesn't work. Why?

138. ## English 1

Can someone analyze this I have no idea what it means its from the poem substance, Shadow, and Spirit You had better go where fate leads. Drift on the stream of infinite flux Without joy, without fear: When you must go-then go And make a little fuss as you

139. ## math

solve. x(1 +2x) = (2x - 1)(x - 2)

140. ## algebra

If Kurt were 10 years old, he would be twise as old as his sister, and their combine ages would be 36. How old are Kurt and his sister?

141. ## organic chem!

when trying to purify aspirin, why would i have to add hot water to the crystals that are formed, and then recool the crystals? what does this do to the crystals?

142. ## pre calculus

Perform the division and write your answer in form. g(x)+r(x)/ d(x) (4x^3-1)/ (x-4)

143. ## instrument

I have absolutely no idea about this, but I am doing a crossword puzzle for music, and I don't know what #1 across is. The clue it gives you is, "music sounds produced by the use of tools," and the word or words is 19 letters long. Help please! Due

144. ## algebra

x=-2 type the integer of a fraction if there is one

145. ## geometry

A pyramid must have all equilateral triangles for faces for it to have an axis of symmetry. True or False? I thought maybe true, but I couldn't find it anywhere in my text saying yes or no. Help please?

146. ## spelling

Hi my name is Lily. This is the first time I am oing o be in a spelling bee. Our class is practicing my teacher will choose three students I really want to be one of them can you please help me so I can have a good peperation? Thank You in advance

147. ## English

I am asked to describe the "syntax" of a book I am reading. I have looked up several definitions of the word and still do not understand what it means.

148. ## Chemistry

a few drops of NaOH are added to a sample of the unknown. A blue precipitate appears. Next, approximately 1mL of ammonia, NH3, is added. The precipitate dissolves, but the solution remains blue. Which ion is present. Explain

149. ## math

THE LETTERS A TO K REPRESENTS A DIGIT. WHAT DIGIT DOES EACH LETTER REPRESENT? THERE IS MORE THAN ONE POSSIBLE ANSWER. A) A A A A + B B B B C C C C A=? B=? C=? B) D D D + E E E F F F G D=? E=? F=? G=? C) H H H + I I I J H H K H=? I=? J=? K=?

Walt has a piece of rope which is 10 1/3 feet long. He has to cut it into 4 equal pieces. How long will each piece be? I took 10 1/3 divided by 4 which is 2.58333. How can I explain this to my 5th grader in fractions?

151. ## chemistry

now am stuck on how to find the grams of X+Y=1.10 X for glucose and Y for sucrose i had 3.78=M0.08206*298 3.78/24.45=0.1546M 0.1546*0.025=0.003865 moles. now am stuck. help please

152. ## math

Solve. x+1/3 + x+2/7 =2

the human skeleton has how many bones?

1) what makes bones hard? 2) what is the hard,strong layer of bone called? 3) what is the smooth flexable layer of tissue covering the ends of bones? 4) what kind of joints are found in the skull and pelvis? 5) what type of muscles make up the majority of

155. ## chemistry

can u help me on these questions? 1) describe the development of the modern periodic table. include contributions made by Lavoiser, Newlands, Mendeleev, and Mosely. 2) describe the general characteristics of metals, nonmetals, and metalloids. 3) identify

156. ## math

Three men walk inside a hotel and decide to stay for the night. They pay the price of \$30 by splitting it so they each pay \$10. They go up their room, but then the manager realizes that the price that night is \$25 dollars so he sends \$5 dollars up with the

157. ## Geometry.

HELP WITH ALOT OF QUESTIONS? TRIG? I don't get any concepts.

158. ## Comp150.

What kind of supporting paragraphs would go with the following topic?Scientist have discovered human remanis thought to be more then 2 million years older then Lucy Explain why

159. ## English

Can you check these sentences for me and help me find suitable synonyms? 1) Julius Caesar has just come back from a victorious (or triumphant) battle against his rival Pompey 2) Where has J. just come back from? 3) Some of his followers plot (synonym)

thank you so much, ms sue! may i ask another question? If 6 oz cost 3.25 20 oz cost 5.59 36 cost 6.59 how much would 12oz, 26 oz, 48 oz cost? Thank you so much! maribeth

161. ## algebra

solve by the elimination method 3x+4y=3 6x+8y=6 help please

162. ## math

Krista has \$0.85 in nickels and dimes. She has 2 more nickels than dimes. How many nickels does she have?

163. ## English

What are examples of Juxtaposition in Hamelet?

164. ## spanish

what does la piz mean?

solve -0.8x

166. ## calculus

A ship is running at 14 3/4 knots (nautical miles per hour) for 7 1/2 hours. How far does the ship travel?

167. ## algebra

help please the equation of y= 1777x+27,153 can be used to predict the number yof gun deaths in the united states after 2000 that is x=0 corresponds is x=2000x=3 x=correspopnds to 2003 x=6 corresponds to 2003 abd so on predict the number of gun deaths in

168. ## algebra

the width of a rectangle is fixed 29 cm. what lengths will the perimeter greater than 82 cm. the length must be greater than blank cm.

169. ## Physics

As one exhales, what change in energy takes place between the diaphragm and the air in the lungs?

170. ## Trig

Let O represent the origin and P be the point (9, -4). Find the positive angle (counterclock wise direction)that the line segment OP makes with the positive x-axis. the answer is 5.86 radians but i keep getting 0.418 radian. please help and show work

171. ## English

What is the prepositional phrase and what is the word that modifies it in the following sentences? 1. Many stars together create cloudy bands of light. 2. Traveling clouds of dust are called nebulas.

172. ## algebra

on three consecutive passes a football team gains 8 yards loses 39 yards and gaons 13 yards what number represents the total net yardage?

173. ## French

The class that you exchange e-mail messages with in France is interested in learning about teen's shopping habits in north America. Write a short paragraph describing where you and your friends like to shop and what you like to wear at school. Tell how

174. ## PHYSICS - please check my work

pete and john play a game of tug war on a frictionless icy curface. pete weighs 539 N and john weights 392 N. during the course of the game, john accelerates toward pete at a rate of 3 m/s^2. Sarah decideds to join the game as well. Now pete pulls on Sarah

175. ## algebra

a cable is cut into 2 pieces. One piece is twice as long as the other piece. Find the length of each piece of cable

176. ## percipitate and colour

a few drops of NaOH are added to a sample of the unknown. A blue precipitate appears. Next, approximately 1mL of ammonia, NH3, is added. The precipitate dissolves, but the solution remains blue. Which ion is present. Explain

How do you factor this expression? 10x+15

178. ## eng gr 9

hi can you please tell me adjectives to describe characters from midsummers night dream and from curious incident of the missing dog in the night time

179. ## algebra

The charge for admission into the concert is \$2.75 for adults and \$1.50 for childeren. If 589 people paid to get into the concert and \$1151 was collected, find the number of adults and the number of childeren who paid for tickets.

180. ## algebra

help please im on my final exam for algebra and i need to pass this is the second time taking it. media services charges \$20 for a phone and \$30 a month for itd economy plan. the equation c=30t+20 describes the total cost c, of operating a media service

181. ## grammar

what is the predicate adjective and participle in this sentence? Nearly a hundred years later, a talented ballet dancer appeared in the same city.

182. ## Communication Language Studies

Have the use of war metaphors gone too far? More specifically, does it matter? that is, do these metaphors really influence how people think and act about movies, sports, politics and "real" wars? I would appreciate any feedback! Thanks!

183. ## French/Sra

J'ai besoin de nouvelles chaussures noires. Je vais en avoir besoin pour la gym. J'ai besoin d'une nouvelle tee-shirt rouge. J'ai besoin d'un nouveau jean bleu. J'ai besoin d'une nouvelle sandales blanches. J'ai besoin d'une nouvelle robe noir. I need one

184. ## PHYSICS!!!

If a machine cant multiply the amount of work , what is the advantage of using such a machine?

0.4x+4

186. ## Financial matters

how does fund accounting handle depreciation

187. ## algebra

50% of what number is 10?

188. ## Math

in a family with two children, what are the probabilities of the following outcomes, assuming that the birth of boys and girls is equally likely?

189. ## Social Studies

What were the 4 dynasties of Ancient China ? Please give me information on each one regarding government, social hierarchy, religion and accomplishments.

190. ## Physics

A particular machine has "mechanical disadvantage". What is the purpose of using such a machine?

191. ## English

Thank you for your last suggestions Can you tell me if the following statements are all possible? 1) Antony stirs the crowd against Brutus 2) He turns the crowd against him 3) He urges/incites the crowd to mutiny against him 4) Is this sentence still

192. ## Statistics

Are large or small data sets more appropriate for using perecentiles to summarize data? Why?

193. ## PHYSICS

Phobos is the larger and closer of Mars’s two moons. It has no atmosphere, a mean radius of 11 km, an albedo of 0.07, and an emissivity of 1.0. (i) Assuming that the radiative temperature of Phobos is 222 K and that it is spherical, what is its mean

194. ## algebra

Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 miles per hour and train B is traveling at 88 miles per hour. Train A passes a station at 10:10 P.M. If train B passes the same station at 10:25 P.M. at what

195. ## Chemistry

An unknown was prepared with the concentration of 0.000630 M. A Beer's Law plot was prepared using the absorbance values from standard solutions of ASA and a line drawn through all the points passed through the origin with a slope of 1550.2 M–1. The

196. ## Trigonometry

A pole with a height of 60 ft. has a shadow of length of 34.64 ft at a particular instant of time. Find the angle of elevation of the sun at this point of time.

197. ## Algebra

is 6x+6yards if the width is x yards find a binominal that represents the length

198. ## science

What determins how quickly or slowly of a moving object changes position

199. ## French/Sra

J'aime faire du shopping au centre commercial et aux grands magasins. Mes amis uniquement font du shopping au centre commercial. J'aime porter des t-shirts longs, jeans, pantalons, pulls, et ce que je suis comfortable dans l'école. Les vêtements que

200. ## communication

Class, you have probably heard of 'Group think', in which members of a group basically agree with each other, regardless of how they personally feel about an issue. My question to you is, how does this impact healthcare decision making? Is this something

201. ## algebra

Area of a square find a polynominal A(X) that represents the area of the shaded region u have a square with an arrow pointing left and right at top of the square with x @ the top and a arrow up and down on the right side of the square.The #3 on the right

202. ## Health care

Measuring the quality of care and areas of patient care needs improvement.

203. ## math

find the worlds production of nickel in a year when russia and new caledonia together produced 1/3 of it,canada 1/6 of it,and australia 1/9 of it, and the rest of the world 420,000 tons.

204. ## algebra

Translate to an inequality. The average speed, s, was between 100 and 110 mph. Translation: 100_ s _ 110

205. ## grammar

They have endeared me by just being themselves and helping me learn to appreciate the imagination, creativity, and personality inside of them.

206. ## chemistry

can u help me on these questions? 1) describe the development of the modern periodic table. include contributions made by Lavoiser, Newlands, Mendeleev, and Mosely. 2) describe the general characteristics of metals, nonmetals, and metalloids. 3) identify

207. ## maths

iam a common multiple of 3 & 7 my digits have a total of 9

208. ## French/Sra

J'aime faire du shopping au centre commercial et aux grands magasins. Mes amis uniquement font du shopping au centre commercial. J'aime porter des t-shirts longs, jeans, pantalons, pulls, et ce que je suis comfortable dans l'école. Les vêtements que

209. ## arithmetic

Find the sum of the 25th term to 50th term of the arithmetic progression 28,23,18, ...

210. ## Math

Write the equation of the line in slope intercept form that is parallel to y=-2+11, and passes through the point (4,2).

211. ## socials

what were some of the military of the Civil War on americnas.

212. ## nutrition

What arguments are being raised by the Grocery Manufacturers of America?

213. ## math

how do I solve : 1/2 + 2/x =3/4. thanks for helping!

214. ## PHYSICS

The force applied by the e-brake is F(eb) = m*a(eb) = -8.13*1452 = -12,100 N I didn't get the same answer - I got 11,804.76....please check

asked by SAMIR - ATTN DRWLS- QUICK QUESTION
215. ## Geography

Where is Wales located in relation to London? Thanks! (:

216. ## Early Childhood Growth and Development

What a child repeats a behavior or action simply to observe that action, you would not infer that

217. ## PHYSICS

CAN SOMEONE PLEASE CHECK THE LAST PART OF THIS QUESTION? pete and john play a game of tug war on a frictionless icy curface. pete weighs 539 N and john weights 392 N. during the course of the game, john accelerates toward pete at a rate of 3 m/s^2. Sarah

218. ## algebra

collect like terms 12m+5n -10m-7n=

219. ## algebra

is there a solution to this problem.. x+3y=5(1) x+4-3x(2)

220. ## math

How do you work out 7.00 x 4.78

221. ## physics

What must a muscle do in order to do work?

222. ## algebra

the funcation h described by h (x)=2.75+71.48 can be used to predict the height in centimeters of a women whose humerus is x cm long. the predicted height of a women whose 32 cm long is

223. ## math

how do I solde this equation? pls help.. 1. 3/2x + 2 = 1/2 - 1/2x

224. ## english

what is needed to combine two sentences with a comma

225. ## physics

the oxidation numbers of the elements in a compound must add up to what

226. ## College Physics

If the uncertanty in the slope is 1.214×10-14, is the measured value of ε0 within experimental uncertainty of the accepted value? (Yes or No)

227. ## finance

the Wrights found that both Tom and Sue had a life insurance protection gap of \$50,000. Present the steps in sequence how Wrights should proceed to search for protection to close that gap?

228. ## Chemistry

how do you find the molar volume of a gas?

229. ## algebra

8x-(4x+6)=2 the solution is x=

what are three most important steps in adult program planning

231. ## math-functions

Given g(x)=px+q where p and q are constants.If g^2(x)=16x+15 find the possible values of p and q?

1.to measure how much the cost of some variable changes over time, you would use? 2.if an index number calculation over 8 years with a base value of 100 gave an index for 1993 of 110, what would be the percentage relative for 1993?

233. ## Math

How would you graph the inequality x > -5

234. ## French

You decide to enter a contest for a shopping spree at your favourite clothing store. Write a paragraph describing what new clothes you need for summer and why you need them. Include the color of 5 articles of clothing that you would like and what

235. ## spelling

Hi. I want to know how i can defeat a hard word in a spelling bee competition? Thank You in advance

236. ## physical geography

i need to know how the elements of the planets,ie... solids, liquids,gasses and factoring in gravity and temperature combine to dictate their position from the sun?

237. ## psychology

what is an example of effort justification

238. ## pre algebra

60 -(6/1 +40/8)

239. ## Public Speaking

what is an example for negative interpersonal communication skill working?

240. ## algebra

a+b for a=34 and b=2 ____ 6 a+b= ______ 6 i don't get this

241. ## PHYSICS!!!

If a machine cant multiply the amount of work , what is the advantage of using such a machine?

242. ## algebra

-1x=-5 __ __ 2 6 x=

243. ## cultural diversity

ethnocentrism

244. ## math

solve. 3/x - 1/3 = 1/6

245. ## math

The slopes of the two lines are given. Conclude whether the lines are parallel, perpendicular, or neither. a)m=2/3,m=4/6 b)m=3/4,m=-4/3 c)m=2,m=-2 d)m=1,m=-1 e)m=1/5,m=0.2 f)m=2 1/4, m=-4/9

246. ## physics

the oxidation numbers of the elements in a compound must add up to

247. ## math

how would i write this in an equation?if f is equal to or less than g than h must be equal to or pluss x

248. ## algebra

here is a tough one for me simplify -6[93-(-95-18)]= help please

-6x>1/13

250. ## aspirin

during the synthesis of aspirin, why do the crystals mostly form when the test tube is placed in the ice bath and not before?

251. ## Public Speaking

where can i find a list of people or several people who perform interpersonal communication skill well. Im looking for example i can draw from to see what behaviors would be useful to incorporate into my own repertoire?

34/6=(2x+1)/3

253. ## niu

he Declining Fish Stock VLR located under the Week Six Materials section of your course materials. · Write a 500- word paper in APA format that includes the following: o A brief description of the water resource problem in the video and how it originated.

254. ## Trigonometry

"Sketch the graph of y=tan(x/2) By solving the equation x/2=-pi/2 x=- pi and the equation x/2=pi/2 x=pi..." Before I go any further, I need to understand where these equations came from. Where does the pi come from out of thin air? What becomes of the

255. ## Art history

What were the key goals of the Italian, Dutch, and Spanish Baroque art periods?

256. ## PsyDAG

Thanks so much for the help with my narrative last night! =) -MC

257. ## math

Help! Solve: 1. 3x + 15 = 0 2. 6x + 18 =0 thanks!

258. ## algebra

is 7 less than or greater than -12

259. ## Financial matters

what are the strengths and weakness of accrual , cash flow and fund accounting?

5+5x

261. ## math

a square has a length of 5 inches. Then it is increased by 20%. Then the same square has a width of 10 inches and it is increased by 10%. How Many Percents has the area of the square been increased By? Thanx 4 your Help

hi, if 20 oz of fish cost 4.59, how much would 6, 12, and 36 oz cost? how would i plot this on graph paper? thank you! maribeth

263. ## college

if you take a \$1000.00 and add 6% over 48 years how much would you have

264. ## science

explain the order of the planets due to the external environments by becoming solids, liquids, or gases. In the case of planet ordering, external environmental factors of gravity and temperature combine to dictate position from the Sun.why?