# Questions Asked onJuly 11, 2011

1. ## Physics

Question: Two strings at different lengths and linear densities are joined together. They are stretched so that the tension in each string is 190.0 N. The free ends are fixed in place. Find the lowest frequency that permits standing waves in both strings

2. ## Chemistry

A 110.-g sample of copper (specific heat capacity = 0.20 J/°C · g) is heated to 82.4°C and then placed in a container of water at 22.3°C. The final temperature of the water and copper is 23.5°C. What is the mass of the water in the container, assuming

3. ## Chemistry

A sample of nitrogen gas at 298 K and 745 torr has a volume of 37.42 L. What volume will it occupy if the pressure is increased to 894 torr at constant temperature?

4. ## Logic

As part of its reorganization, company X created five new positions within the company. However, after the reorganization was complete, company X had fewer employees than before the reorganization. Which one of the following, if true, would best explain

5. ## Physics Angular Momentum

A bullet with a mass m = 4.83 g and initial speed of 330 m/s passes through a wheel which is initially at rest as in the gure. The wheel is a solid disk with mass M = 2.29 kg and radius R = 18.6 cm The wheel rotates freely about an axis through its center

6. ## science

which of the following topics involving bees would an environmental scientist consider to be the most important ? 1. the effects of insecticides on bees and subsequently the pollination of agricultural crops 2. the amount of honey production needed for

7. ## Math

simplify (cos4x-cos2x)/(sin4x+sin2x) the answer choices are : cotx, tanx, cotxtanx, or 1

8. ## math **

there are twice as many women as men in the union at global products altogether ,84 workers at the plant are union members . how many of them are women ?

The standard deviation of all possible sample proportions increases as the sample size increases - TRUE OR FALSE

10. ## science**

a large portion of the water that falls on the earth is absorded by plants and used in photosynthesis. the plants secure the soil with their spreading roots which of the following practices would contribute the most to periodic flooding in an area ? A

A company makes three products X, Y and Z. Each product requires processing by three machines A, B and C. The time required to produce one unit of each product is shown below. Product X:- Machine A: 1 Machine B: 2 Machine C: 2 Product Y: Machine A:2

12. ## Math

Hi I need help with this question. Rearrange this equation to isolate a ((a+(b/c))(d/e)=f I know you first should divide both sides by (d/e) Can anyone help, thanks

13. ## CHEM

HOW MCH VOLUME OF DECA MOLAR SOLUTION IS REQD 2 PEPARE 500ML OF SOLUTION WITH DENSITY 1.03G/ML & HAVING MASS% =40%.

14. ## chemistry

which of the following is reduced in the reaction: Cu(NO3)2 + Zn --- Zn(NO3)2 + Cu

15. ## science**

this relationship of algae, moth, and sloth would be best classified as A- saprophytic. B- cannibalistic. C- parasitic.D- mimetic. E- mutualistic

16. ## managerial economics

Appalachian Coal Mining believes that it can increase labor productivity and, therefore, net revenue by reducing air pollution in its mines. It estimates that the marginal cost function for reducing pollution by installing additional capital equipment is

17. ## Critical Thinking

Identify the premises and the conclusions in the following arguments.Kera, Sherry, and Bobby were all carded at JJ’s, and they all look as though they’re about thirty. Chances are I’ll be carded too.

18. ## physics

A BODY THROWN UPWARD ALWAYS FALLS ON THE GROUND ,EXPLAIN IT?

19. ## chemistry

what is the equation of the reaction between potassium sulphite and bromine

20. ## American Gov

The major reason for the persistence of the American two-party system is what? A. there are naturally only two sides to the political disputes B. regional conflict C. its a single member district system of electing officeholders D. proportional

1. Consider the factors from the situational leadership theory outlined in Figure 12.4. Apply these factors to Jacobs and Windber. 2. How do you think Jacobs would score on the least-preferred-co-worker (LPC) scale? Why? 3. Based on the success of Windber,

The table below shows the number of hours required in each of two departments to make one unit of various products A, B and C. For example, product B requires 1 hour of time in department I and 3 hours in department II. HOURS REQUIRED PER UNIT OF PRODUCT

23. ## algebra

2. The equation relates the radius r of a drainpipe in inches to the flow rate F of water passing through it in gallons per minute. a. Find the radius of a pipe that can carry 600 gallons of water per minute. Round to the nearest tenth. (Let ) b. Solve the

24. ## Geometry

ABCD is an isosceles trapezoid. Angle CDA = 80. Find the measure of angle BAD.

25. ## Drug information Sources

Which sources will provide the best dosing information for a five-year-old child?

26. ## American History

Which of the following statements is true of life in the New England colonies?

27. ## geometry

If the bases of an isosceles trapezoid have lengths of 15 and 32, what is the length of the median? If necessary, round your answer to two decimal places.

28. ## math

Find the GCF of the polynomial 44x^6+8x^5

29. ## geometry

Use the diagram below for the following question. P(2,1), Q(11,1), and R(8,7) M and N are the midpoints ofandrespectively. Find MN and PQ. How do these lengths compare with each other?.

30. ## Calculus

Express the quadratic function y=-2/3x2-12x-11 in standard form?

A company makes three products X, Y and Z. Each product requires processing by three machines A, B and C. The time required to produce one unit of each product is shown below. Product X:- Machine A: 1 Machine B: 2 Machine C: 2 Product Y: Machine A:2

32. ## Math

Let p represent the statement, "Jim plays football", and let q represent "Michael plays basketball". Convert the compound statements into symbols. Jim does not play football or Michael does not play basketball.

33. ## Physics

A solid sphere of uniform density starts from rest and rolls without slipping a distance of d = 4.4 m down a q = 20° incline. The sphere has a mass M = 4.6 kg and a radius R = 0.28 m. What is the translational kinetic energy of the sphere when it reaches

34. ## Chemistry

5.00 liter steel cylinder is filled with water vapor at 100 °C and 650 mm Hg. The problem I am having is whether the 5.00L significant in the problem and if so where? a. Determine the density of this gas sample. b. Determine the mass of water that

35. ## Math

Construct a truth table for the statement. (p ↔ q) → p

36. ## us history

was their tension over slavery in the 1840's?

37. ## Math

tn - tn-1 = 2n + 3; t1 = 10 Find the first five terms in the sequence using this recursive formuls

38. ## Spanish

I always thought Ustedes meant "they." I've also heard it as "you all (plural)". So when a question being given has the Uds. conjugation of the infinitive, are we suppose to answer back in the Uds. form or nosotros form? For example: A que hora van a salir

39. ## math

Dirk Nowitzki of the Dallas Mavericks has a 87.7% career free throw record. Assuming that free throws represent independent events, find the probability of Nowitzki a. Getting 3 free shots in a row b. Missing exactly one of 3 free shots

40. ## American Gov

What was the main reason for the decline of party centered politics?

41. ## math

A manufacturer produces three types of radios: deluxe, standard and economy. Each radio uses three different types of transistors: P, Q and R. The deluxe radio uses 2 P's, 7 Q's and 1 R. The standard contains 2 P's, 3 Q's and 1 R, and the economy model

42. ## math

The table below shows the number of hours required in each of two departments to make one unit of various products A, B and C. For example, product B requires 1 hour of time in department I and 3 hours in department II. HOURS REQUIRED PER UNIT OF PRODUCT

43. ## math

write forty tree hundredths as a decimal

38.5-24.1=

45. ## math

restaurant offers a \$20 dinner deal. Dinners share one of 4 appetizers, get 2 of 6 entrees and share one of 3 desserts. How many dinners can be selected? (To make it easier, let’s assume they don’t pick 2 of the same meal)

46. ## US HISTORY

Why was there tension in slavery in the 1840's

47. ## math

A model rocket is launched with an initial velocity of 250 ft/s. The height, h, in feet, of the rocket t seconds after the launch is given by h = −16t2 + 250t. How many seconds after launch will the rocket be 730 ft above the ground? Round to the nearest

48. ## math

The height of a projectile fired upward is given by the formula s = v0t − 16t2, where s is the height in feet, v0 is the initial velocity, and t is the time in seconds. Find the time for a projectile to reach a height of 96 ft if it has an initial

49. ## chemistry

number of 32.0 grams Br^2

50. ## Math

Let U = {0, 1, 2, 3, 4, 5,...}, A = {1, 2, 3, 4,...}, B = {4, 8, 12, 16,...}, and C = {2, 4, 6, 8,...}. Determine the following: A′ ∩ C

51. ## MATH

f the bases of an isosceles trapezoid have lengths of 19 and 38, what is the length of the median? If necessary, round your answer to two decimal places.

52. ## Govt

What is the name for the Court's power which affords it the right to call "the strikes and balls" is it judicial review? a impound b amicus curiae c writ of certiorari d judicial review

53. ## govt

I can't find this answer Explain how and why the Supreme Court's ruling in the case of Marbury v. Madison increased the Court's power

54. ## Physics

So I had an exam today and one of the questions is bugging me. Our professor is out of town for a few days, so we had a proctor and I still can't figure it out using my notes. It was a question about two carts and deals with momentum. Cart A is at rest

55. ## Critical thinking

Seventy percent of freshmen at Wharfton College come from wealthy families; therefore, probably about the same percentage of all Wharfton College students come from wealthy families.Identify the premises and the conclusions in the following arguments.

56. ## math

chad's commission rate is 12%. He invests his commission from the sale of \$9000 worth of merchandise at an interest rate of 8%, compounded quarterly. How much is Chad's investment worth after 6 months?

7x+4=2x+7

58. ## Critical thinking

A cut in the capital gains tax will benefit wealthy people. Marietta says her family would be much better off if capital gains taxes were cut, so I’m sure her family is wealthy.Identify the premises and the conclusions in the following arguments.

59. ## Literature

For homework, I have to use those two lessons that Julie learned in the novel Julie of the Wolves to make an essay. Here is the essay. Would you please give feedback? The story Julie of the Wolves by Jean Craighead George is about a girl named Julie, who

60. ## Chem

The air pressure in a tire is 1.20 atm at 77.0 C. Find the pressure of the same amount of gas in the same volume at -12.0 C

61. ## Chemistry

A sample of gas occupies a volume of 500.0mL at .906 atm and 97 C. What will the final temperature (in Celsius) be if it is brought to a volume of 1.05L and a pressure of 502 mm Hg?

62. ## financial management

your investment advisor has sent you three reports for a young growing company named vegas chips incorporated. these three reports depict the company as speculative but each one poses different projections of the companys future growth in earnings and

63. ## Regulation for Drug Development

Given the following information for three new drugs, which drug has the greatest margin of safty?

A manufacturer produces three types of radios: deluxe, standard and economy. Each radio uses three different types of transistors: P, Q and R. The deluxe radio uses 2 P's, 7 Q's and 1 R. The standard contains 2 P's, 3 Q's and 1 R, and the economy model

65. ## Math-Reiny this one is more confusing to me :(

A survey of vegetable gardeners showed the following: 63 grew tomatoes 26 grew cucumbers 38 grew zucchini 18 grew both tomatoes and cucumbers 22 grew both tomatoes and zucchini 19 grew both cucumbers and zucchini 14 grew all three types 18 grew none of

A company makes three products X, Y and Z. Each product requires processing by three machines A, B and C. The time required to produce one unit of each product is shown below. Product X:- Machine A: 1 Machine B: 2 Machine C: 2 Product Y: Machine A:2

67. ## Math-Can u help me Reiny?

I am stuck with the 3 venn diagrams now... A survey of vegetable gardeners showed the following: 63 grew tomatoes 26 grew cucumbers 38 grew zucchini 18 grew both tomatoes and cucumbers 22 grew both tomatoes and zucchini 19 grew both cucumbers and zucchini

68. ## Thinking Critically

Identify the premises and the conclusion I know there’s a chance this guy might be different, but the last person we hired from Alamo Polytech was a rotten engineer, and we had to fire him. Thus I’m afraid that this new candidate is somebody I just

69. ## Social studies

Daily maximum temperature of june 8 2010

70. ## managerial economics

Twenty first century electronics has discovered a theft problem at its warehouse and decided to hire security guards. The firm wants to hire the optimal number of security guards. The following table shows how the number of security guards affects the

71. ## English

Does anyone know what this verse means: "shall summon to unwelcome bed"? Here is the full stanza of the poem. It is from through the looking glass? Come, hearken then, ere voice of dread, With bitter tidings laden, Shall summon to unwelcome bed A

72. ## chemistry

Use the bond enthalpies and bond energies in the data book in themochemical equations to calculate the reaction enthalpy of: H2(g) +Br2(g) -> 2HBr(g)

73. ## US HISTORY

WHAT ARE EVENTS THAT INFLUENCED THE SECTIONAL CRISIS THAT LED TO CIVIL WAR?

74. ## geometry

If 9 = (7x)° and 10 = (3x)°, what is the measure of 16 such that x || z?

75. ## Biology

The article is presented by HomeworkEasy experts out of five years of stead fast dedication to help students with their biology assignments, homework and projects. Origins of biology as a field are expounded and the academic possibilities are briefed. The

76. ## HCA/210

For my final project, I have to develop a unique proposal that describes a new health care system. My question is, is this assignment just referring to the health insurance aspect of the health care system?

77. ## algebra

A number consists of two digits. The sum of 3 times the units digit and 4 times the units digit is 24. If the digits are reversed, the new number is 25 less than the original number. Find the number

78. ## algebra

A number consists of two digits. The sum of 3 times the units digit and 4 times the units digit is 24. If the digits are reversed, the new number is 25 less than twice the original number. Find the number

79. ## Physics

So I had an exam today and one of the questions is bugging me. Our professor is out of town for a few days, so we had a proctor and I still can't figure it out using my notes. It was a question about two carts and deals with momentum. Cart A is at rest

The sampling distribution of x bar must be a normal distribution with a mean 0 and standard deviation 1. true or false

A 82% confidence interval for a sampling distribution with a mean of 100, a sample standard deviation of 24 and a sample size of 36 will be based on a á= ______ and a corresponding Zá of ____ .18 and .47 .18 and .915. .09 and .23 .09 and 1.34

82. ## anthropology

Incest- why cannot we sleep with our brother?

83. ## Geometry

2. Segment RT is the midsegment of the trapezoid. Find x.

84. ## History-Civil War

To - Damon....any comments on the question I posted on 07-10-11 @ 9:48 pm. I always appreciate your remarks...they help

85. ## biology

assuming that there are 5 bacteria found in a glass of water. what is the population. of bacteria if it will not be controlled for 6 hours?

86. ## math

Select 2 cards from a deck of 52, a. Find the probability of getting 2 hearts b. Find the probability of getting a heart on the 2nd draw given that you got a heart on the first draw

87. ## Environmental Science

If global energy policies lead to stabilisation of CO2 concentrations at 660 p.p.m., what would the resulting increase in GMST be (to one decimal place)? In subsequent parts of the question this is referred to as the UN’s ‘de facto temperature

88. ## MATH

There are 5 red and 4 black balls in a box. If three balls are picked without replacement, what is the probability that at least one of them is red?

89. ## epidemiology

test the null hypothesis and interpret findings on toxin levels between farm, urban and suburban homes

90. ## Spanish

Pero, (16.)___ ser un viaje tan largo, mi familia y yo nos divertimos mucho. por o para? I think it's para, am I right?

91. ## Mathematics

Identify the slope and y-intercept of the following table values. x 5,10,15,20,25 y -80,-40,0,40,80

92. ## English

I need help with starting my essay. These are the organization of my essay. I am not sure what to put for paragraph #2. *Broad subject-My name *Limited Topic for thesis statement-Learning to cope with my height *Main Idea about this topic- Advantages of

93. ## Math

tn - tn-1 = 2n + 3 Find the first five terms in the sequence using this recursive formuls

94. ## physics

What is the apparant weight if a body in free fall?

95. ## Probability

HCC offers 21 Humanities courses. If all students must take 2 of the courses, how many different ways can a student select their Humanities classes? ***my answer is 21*10= 210***

96. ## arithmetic

what is the arithmetic mean of 3,5,7,9 and 11

97. ## physics

a cyclist travel a distance of 4km from P to Q then moves the distance of 3km at right angle to PQ. find its resultant displacement graphically?

98. ## algebra

From 1993 to 2003 the cumulative number N of AIDS cases in thousands can be approximated by , where corresponds to the year 1993. N= -2x^2+ 76x + 430 x=0

99. ## math

two angles in a triangle measure degreeand 38. the longest side is 24cm longer than the shortest side. write to explain how you would determine the length of the shortest side. can i use sin law or the cosine law.pls. explain..

100. ## english

Need to find 30 corrections in this assignment.

101. ## English

What is the base in regulate? Is it reg-??

102. ## arithmetic

what is the arithmetic mean of 3,5,7,9and 11?

103. ## a

Susan Rojas is applying for a position in the marketing department of a local corporation. Although Greg Ellis is the director of this department, she has been instructed to send her resume and other documents to Jeff Cohen, manager of the human resources

104. ## Health

Could you please put this in simpler terms.Is it expedient to include cultural assessment in community/public health care with vulnerable populations?

105. ## us history

HOW DID AGRICULTURE CONTRIBUTE TO ECONOMICS,ECONOMIC DEVELOPMENT,REGIONAL SPECIALIZATION, AND SOCIAL REFORM FROM 1780 TO 1850'S?

106. ## Math

solve c(x)=x^2-40x+405

107. ## Science

ammount of salt get dissolves in 150 ml of water at 97 degree ? amount of salt that dissloves in 150 ml of water at 7 degree?

108. ## chemistry

at sea level the average lung capacity for humans is about 4.o liters. at 37 degrees celcius (body temperature) how many grams of oxygen could your lungs hold?

109. ## Health Care Reimbursement Methodologies

If an enrollee uses more services than originally assumed per the PPPM calculation, then the plan would ?

110. ## Math

solve c(x)=x^2-40x+405 where x equals 15

111. ## Finance

1. A man establishes an annuity for retirement by depositing \$50,000 into an account that pays 7.2% compounded monthly. Equal monthly withdrawals will be made each month for 5 years, at which time the account will have a zero balance. Each year taxes must

112. ## us history

was the growth of democracy just a coincidence or did it contribute to the market revolution? i am trying to us this as a timeline.

113. ## Calculus

Given m(x)=7/5x2+9-2 what is the domain of m in set notation form?

114. ## english

Whats wrong with my essay i got F on this? Critique please Better Friend According to the article, “women have a higher quality when it comes to relationship than men”. Having friends is important because they know our assets and our flaws. In a

115. ## math

how do i get the common denominator for 3 4 5 6 and 7?

116. ## Chemistry

In a coffee-cup calorimeter, 1.70 g of NH4NO3 is mixed with 76.0 g of water at an initial temperature of 25.00°C. After dissolution of the salt, the final temperature of the calorimeter contents is 23.71°C. Assuming the solution has a heat capacity of

117. ## Literature

What lessons do Julie learn in the novel Julie of the wolves. I already read the story several times, looked at a few study guides, but couldn't find two lessons. I actually found one obvious one: Julie learns to survive in the cold arctic. What is the

118. ## chemistry

will potassium chloride react with bromine

119. ## nutrition

what is it called when you calves get all tight when your sleeping and it hurts. i heard it could be blood clots or lack of potatisum

120. ## math

I need help with rearranging this equation to isolate c a=b((1/c)-(1/d)) I got this (a/b)+(1/d)=(1/c) but I don't know the last step with the reciprocal. Could someone please help, thank you

121. ## Angular Momentum

A long thin rod of mass M = 2.00 kg and length L = 75.0 cm is free to rotate about its center as shown. Two identical masses (each of mass m = .421 kg) slide without friction along the rod. The two masses begin at the rod's point of rotation when the rod

122. ## chemistry

Okay so I know how I would normally determine molar mass of a compound *get out periodic table, sum up elements present, eg. H20 = [2(1.008)+16.00]g/mol* But this is for a lab class and they want us to derive it. Info found: Ethylene glycol (C2H6O2

123. ## psy 220

Choose a public figure who has acted unwisely. Describe if it was a lack of emotional intelligence, successful intelligence, or both that caused his or her lack of judgment.

124. ## statistics

a population has mean 15 and standard deviation 5. if 68% of the values in the population are between 10 and 20, the population cannot be normal

125. ## Calculus

Given f(x)=-10x2-42x-17 find f(x+h)

126. ## chemistry

Iron forms two chlorides.One gram of the first chloride produces 2.26g of silver chloride and one gram of the second chloride produces 2.65g of silver chloride.Prove that these data illustrate the law of multiple proportions

127. ## calling miss sue and sarah

I'm on college. this is for English 101. She just distribute our papers and talk to her if anyone has a problem with grade but there are no remarks on paper and i need to catch up on my next class. i revised it now with the mistakes that you point out.

128. ## Probability

if two fair dice are rolled, what is the probablity that the total showing is even or less than seven?

The table below shows the number of hours required in each of two departments to make one unit of various products A, B and C. For example, product B requires 1 hour of time in department I and 3 hours in department II. HOURS REQUIRED PER UNIT OF PRODUCT

130. ## math

A model rocket is launched with an initial velocity of 250 ft/s. The height, h, in feet, of the rocket t seconds after the launch is given by h = −16t2 + 250t. How many seconds after launch will the rocket be 730 ft above the ground? Round to the nearest

131. ## world regional geography

The _______ were responsible for the forced migration of more people from Africa than any other colonial power

132. ## chem

the % T of brass solution is 55.0%, 1)what is the Transmittance(T)?

133. ## Math

Determine which, if any, of the three statements are equivalent. I) If there is an opera performance, then Paula will not wear jeans. II) If there is no opera performance, then Paula will wear jeans. III) Either there is an opera performance or Paula will

134. ## Physics

A solid sphere of uniform density starts from rest and rolls without slipping a distance of d = 4.4 m down a q = 20° incline. The sphere has a mass M = 4.6 kg and a radius R = 0.28 m. Of the total kinetic energy of the sphere, what fraction is

135. ## Math-geometry

Determine if the argument is valid or invalid. Give a reason to justify answer. If the bell rings, then we answer the door. The bell rings. We answer the door.

136. ## Math-geometry

Construct a truth table for q ->~p

137. ## Calculus

Using logarithmic differentiation find the derivative of f(x)=2x/x. I can't seem to figure this out.

138. ## Math

Write the statements in symbolic form. Let p: The temperature is 90°. q:The air conditioner is working. r.The apartment is hot. If the apartment is hot and the air conditioner is working, then the temperature is 90°.

139. ## Another Calculus

Sorry I have been trying to figure this out all day. Find the largest and smallest values of the given function over the prescribed closed, bounded interval. g(t)= (t^3/2)(e^-2t) for 0

140. ## math

A spherical water tank has a diameter of 10 feet. How much water does it hold when half full

141. ## Chemistry

Excess sodium sulfate is added to exactly 50 mL of a solution containing an unknown amount of silver(I) cation. Determine the concentration of the silver ion in this solution if 3.54 mg of a solid is isolated.

142. ## Chem

How many moles of C are needed to react with 85.5 moles of Al2O3 ?

143. ## American Government

Question about American party organizations: A. are about to die out B. Are more powerful today than any time in history C. are still, important but their role in campaigns is secondary to that of candidates D. are unimportant in the political system today