# Questions Asked onJuly 28, 2013

1. ## physics

A 0.810 m long brass pendulum experiences a 18.0°C temperature increase. (a) Calculate the original period(s). (b) What is the change in the period(s)? (c) Find the ratio of the change in period to the original period, and calculate how long (h) a clock

2. ## Accounting

Materials used by Square Yard Products Inc. in producing Division 3's product are currently purchased from outside suppliers at a cost of \$5 per unit. However, the same materials are available from Division 6. Division 6 has unused capacity and can produce

What is the Kc for the following equilibrium at 500∘C, N2(g)+3H2(g)⇌2NH3(g) [H2] = 0.50M , [N2] = 0.50M , [NH3] = 2.0M ?

4. ## physics

Suppose a diving board with no one on it bounces up and down in a simple harmonic motion with a frequency of 3.00 Hz. The board has an effective mass of 10.0 kg. What is the frequency of the simple harmonic motion of a 62.0 kg diver on the board?

5. ## Accounting

The Clydesdale Company has sales of \$4,500,000. It also has invested assets of \$2,000,000 and operating expenses of \$3,600,000. The company has established a minimum rate of return of 7%. What is Clydesdale Company's profit margin? A.20% B.80% C.44.4%

The U.S. Dairy Industry wants to estimate the mean yearly milk consumption. A sample of 16 people reveals the mean yearly consumption to be 60 gallons with a standard deviation of 20 gallons. a. What is the value of the population mean? What is the best

7. ## physics

A spring has a length of 0.260 m when a 0.300 kg mass hangs from it, and a length of 0.750 m when a 1.90 kg mass hangs from it.(a) What is the force constant of the spring?(b) What is the unloaded length of the spring?

8. ## physics

When a pendulum with a period of 2.00000 s is moved to a new location from one where the acceleration of gravity was 9.80 m/s2, its new period becomes 1.99711 s. By how much does the acceleration of gravity differ at its new location? (m/s2)

9. ## Government

Which amendments... -Extended civil rights? -Extended individual rights (including voting rights)? -Prohibited certain practices by states? -Changed specific language in the Constitution?

10. ## Math

There are 8 standard classifications of blood type. An examination for prospective laboratory technicians consists of having each candidate determine the type for 3 blood samples. How many different examinations can be given of no 2 of the samples provided

11. ## physics

(a) What is the best coefficient of performance for a heat pump that has a hot reservoir temperature of 50.0°C and a cold reservoir temperature of -20.0°C? (b) How much heat in kilocalories would it pump into the warm environment if 3.60 multiplied by

12. ## Accounting

Chicks Corporation had \$1,100,000 in invested assets, sales of \$1,210,000, income from operations amounting to \$242,000, and a desired minimum rate of return of 15%. The investment turnover for Chicks is: A.1.3 B.1.2 C.1.0 D.1.1

13. ## math

The number of customers that visit a local small business is 37,800 and has been continuously declining at a rate of 1.7% each year. What is the approximate number of customers that visit the business in 12 years?

14. ## arithmatics

On the Moon, a falling object falls just 2.65 feet in the first second after being dropped. Each second it falls 5.3 feet farther than in the previous second. How far would an object fall in the first ten seconds after being dropped?

15. ## algebra

Marcus has 72 feet of fencing. He wants to build a rectangular pen with the largest possible area. What should the dimensions of the rectangular pen be to maximize the area?

16. ## Accounting

The standard costs and actual costs for direct labor for the manufacture of 2,500 actual units of product are as follows: Standard Costs Direct labor 7,500 hours @ \$12.00 Actual Costs Direct labor 7,400 hours @ \$11.40 The amount of the direct labor rate

17. ## chem help!

The equilibrium constant, Kc, for the equilibrium N2O4(g)←→2NO2(g) is 4.6×10−3 . If the equilibrium mixture contains 5.0×10−2M NO2, what is the concentration of N2O4?

18. ## Calculus-PLZ HELP STEVE!

Find the inverse Laplace transform of the following function: F(s)=(9+s)/(4-s^2)

19. ## Science

how does aldersterone maintain homeostasis of extra cellular fluid?

20. ## Statistics

True or False. Help please! Statistics' students of a class of Lyceum want to calculate the average number of chocolate pieces in a standard package of biscuits SANTAS. They choose a random sample of biscuits, measure chocolate pieces in each cookie and

21. ## Math

From a standard 52 card deck, how many 5-card hands will have all hearts?

22. ## physics

0.460 kg mass suspended from a spring oscillates with a period of 1.50 s. How much mass must be added to change the period to 1.95 s?

23. ## Calculus HELP

A particle is moving along the curve y=5 sqrt (2x+6). As the particle passes through the point (5,20 , its x-coordinate increases at a rate of 5 units per second. Find the rate of change of the distance from the particle to the origin at this instant.

24. ## Math-probability

There are 8 standard classifications of blood type. An examination for prospective laboratory technicians consists of having each candidate determine the type for 3 blood samples. How many different examinations can be given of no 2 of the samples provided

if 2x^2+2x+ xy =2 and y(2)=-5 find y'(2) by implicit differentiation

26. ## physics

A U.S quarter is rolling on the floor without slipping in such a way that it describes a circular path of radius R=4 cm. The plane of the coin is tilted at an angle of θ=45∘ with respect to the horizontal plane (see the figure below). Find the coin's

27. ## geography

purpose of sphere of influence of organisation that renders a service in an area eg. clinic, hospital

28. ## Math

If x + 1 = 23, what is the value of 3x + 3 ?

29. ## Math

In a horse race, how many different finishes among the first 3 places are possible if 10 horses are running.

30. ## Accounting

Moon Shoe Factory is an investment center and is responsible for all of their net income and the use of their assets. In 2012, the invested assets totaled \$475,000 and net income was \$115,000. What is the rate of return on assets? A.24.2% B.25.0% C.4.0%

31. ## Calc

if 2x^2+2x+ x = 2y and y(2)=-5 find y'(2) by implicit differentiation

32. ## chemistry

STANDARD: Put into a clean 250 mL volumetric flask exactly ..... 0.90 ml of 1.00 mM iodate STANDARD. Add an excess of 1M KI and 1M Sulfuric Acid and let stand for 5 minutes. Dilute to volume. UNKNOWN: Pipet into a clean 250 mL volumetric flask 1.00 mL of

33. ## retail pharmacy assistant

the most important people to the success of a pharmacy are the? a.customers b.pharmacists c.doctors d.pharmacy assistants my answer is a when buying self-medication ,customers who seek the advice of a pharmacy assistant can be sure that? a.they are leaving

34. ## retail pharmacy assistant

customers often prefer shopping in a pharmacy instead of a chain store because pharmacies? a.ofter personalized service b.have lower prices c.never recommend products d.are self serve my answer is a

35. ## retail pharmacy assistant

being a member of a health team allows the pharmacy assistant to? a.be a link between the doctor,the customer and the pharmacist b.recommend and dispense prescription drugs c.refer customers to a physician d.work without the supervision of the pharmacist m

36. ## Informal Logic

recent study of 100 employees from six departments of a major corporation found 65% to be sleep deprived. The researchers concluded that the majority of corporate employees are sleep deprived. The researcher’s conclusion is suspect because it

37. ## POL 201 American National Government

1) Presidents often seek to control the federal bureaucracy by doing all of the following except: a) filling the top echelon of executive organizations with political appointees who share their values. b) assigning members of the White House staff

38. ## retail pharmacy assistant

pharmacy assistants should treat customers who require advice on personal matters as?\ a.firstly their customers and secondly their friends b.people who trust them with confidential information c.persons unlikely to become regular cuatomers d.persons who

39. ## Physics

Help with the following ones: 2-2-1, 2-2-3, 2-2-4 Q2_1: QUIZ 2, PROBLEM #1 The shaft ABC is a solid circular cylinder of constant outer diameter 2R and length 3L. The shaft is fixed between walls at A and C and it is composed of two segments made of

40. ## retail pharmacy assistant

when a customer has a complaint the pharmacy assistant should ? a.apologize and hope no one notices b.try to rectify the problem without telling anyone c.report the problem to the pharmacist d.assume that the customer is in error my answer is c

41. ## retail pharmacy assistant

as a pharmacy assistant you are working on correcting an offensive personal habit.this effort demonstrates your concern for? a.the pharmacist b.the customer c.your co workers d.yourself my answer is d

42. ## Calculus

Let xy=1 and dy/dt=1 Find dx/dt when x=5

43. ## math

Michelle buys 18 oz ofa certain cereal for \$1.14. What was the price per pound of the cereal to the nearest cent?

44. ## retail pharmacy assistant

whenever possible the successful pharmacy assistant should? a.extract personal information from the customer b.greet the customer by name .c.favour regular customers d.greet the customer with may I help you my answer is b

45. ## Algebra

A ball is dropped from the top of a building that is 784 feet high. The height of the ball above ground level is given by the polynomial function h(t)= -16t to the second power + vot + ho where t is measured in seconds, vo is the initial velocity and ho is

46. ## calculus

Write the form of the partial fraction decomposition of the function do not determine the numerical values of the coefficients. 1/x^4-2401

47. ## retail pharmacy assistant

a pharmacy assistant can put customers at ease by? asking whether they need help b.asking details about their family c.showing interest and having a friendly attitude d.minimizing the seriousness of their illness my answer is c

48. ## Math

Two Wheeler-Dealer Bike Shop has a 22-inch off-road racer on sale this month for \$239.95. If the original price of the bike was \$315.10, how much would a customer save by purchasing it on sale?

49. ## retail pharmacy assistant

when a customer askes for a product by name the pharmacy assistant must ? a.ask the customer what the product is for b.supply the product without any questions c.ask the pharmacist if the product is safe d.suggest in conversation the possible uses of the

50. ## physics

Calculate the net work output of a heat engine following path ABCDA in Figure 14.30, where horizontal axis is V and each unit is 0.5*10^-3 m^3, V1 = 1.0*10^-3 m^3 and V2 = 4.0*10^-3 m^3. The vertical axis is P(N/m^2); A is (1.0*10^-3,2.6*10^6), B is

51. ## retail pharmacy assistant

when asked for an unknow product, the pharmacy assistant should? aask the customer what it is used for b.try to suggest a different product c.ssay I don't know ,but ill find out about it d.refer the customer to the pharmacist my answer is d

52. ## physics

When 1.60 multiplied by 105 J of heat enters a cherry pie initially at 20.0°C, its entropy increases by 470 J/K. What is its final temperature (C)?

53. ## physics

(a) How much heat (J) flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 18°C water in reaching equilibrium? (b) What is the change(J/K) in entropy due to this heat transfer? (c) How much work (J) is made unavailable,

54. ## physics

(a) What is the best coefficient of performance for a heat pump that has a hot reservoir temperature of 50.0°C and a cold reservoir temperature of -20.0°C? (b) How much heat in kilocalories would it pump into the warm environment if 3.60 multiplied by

55. ## physics

While taking a plane flight to a meeting, a physicist decides to do a mental calculation of how much fuel the plane would consume in the absence of friction, assuming its engines have an efficiency of 22.0% and the mass of the plane is 200,000 kg. Each

56. ## physics

Two parakeets sit on a swing with their combined center of mass 15.0 cm below the pivot. At what frequency do they swing?

57. ## POL 201 American National Government

When the President vetoes a bill he (Points : 1)

58. ## math

find the domain, target, and rule of the inverse functions: 1. f(x)=(x+3)/(5x+2) 2. g(x)=1/square root of 2x-1

59. ## CHEM desperate help!

What is the Kc for the following equilibrium CO2(g)+H2(g)←→CO(g)+H2O(g) if [CO] = 0.32M , [H2O] = 0.26M , [CO2] = 0.30M , and [H2] = 3.3×10−2M ?

An equilibrium mixture at 225∘C contains 8.0×10−2M NH3 and 0.20M H2 for the reaction 3H2(g)+N2(g)←→2NH3(g) If the Kc at this temperature is 1.7×102, what is the equilibrium concentration of N2?

61. ## Statistics

There is a \$2 raffle with a first prize of \$10000, a second prize of \$500, and a 3rd prize of \$100. If 1000 tickets are sold find the expected value. How much should the raffle ticket cost to make this a fair game?

62. ## Math

If there are 366 volumes of a book and each volume comes once a week, lets say there have been already 307 volumes out then how many weeks will it take for rest of the volumes to come out? (How do I solve these type of questions?)

63. ## baking

regarding the blending method, which statement is false? A.Recipes typically call for baking soda or baking powder B.Blending method recipes exclusively on the use of pastry flour. C.Separately prepared wet and dry mixtures are combined. D. As a

64. ## physics

Two boys and their father are balance on a seesaw. The father, 70kg, sits on one end 0.65m from the center of the seesaw while the two boys sit together on the other end. If each boy weighs 30kg, where should they sit?

according to lechateliers principle, would increasing the starting concentration of Ca2+ increase or decrease the amount of Ca(IO3)2 that dissolves???

66. ## physics

Two boys and their father are balance on a seesaw. The father, 70kg, sits on one end 0.65m from the center of the seesaw while the two boys sit together on the other end. If each boy weighs 30kg, where should they sit?

67. ## Grammar

Which is correct? How many cups of flour? Or How much (flour) do you need?

68. ## physics

Two boys and their father are balance on a seesaw. The father, 70kg, sits on one end 0.65m from the center of the seesaw while the two boys sit together on the other end. If each boy weighs 30kg, where should they sit?

69. ## American History

Explain Wilson's initial policy at the outbreak of world war I and if they were a success or failure.

70. ## chemistry

A sample of an ideal gas at 1.00 atm and a volume of 1.31L was placed in a weighted balloon and dropped into the ocean. As the pressure had increased to 45.0 atm, what was the volume of the sample? Assume that the temperature was held constant.

71. ## math

There are 48 more chicken nuggets than fish nuggets on the plate. After some cildren ate 12 chicken nuggets and 12 fish nuggets there were 3 times as many chicken nuggets as fish nuggets. How many nuggets were there on the plate?

72. ## Physics - optics

the index of refraction of ruby is less than the index of refraction of diamond, Why?

73. ## physics

A pendulum with a bob of mass 30g is lifted to height of 5.00cm above its lowest point and allowed to fall so that collides elastically with a block of mass 20g that rests on a smooth horizontal floor. The block stops 5 seconds after the collision.

74. ## Math

a+9b=19 a+2b=-2

75. ## Math

9x-y=31 x+8y=44

76. ## statistics

Can you please tell me how to solve for the following? Pedro took an exam in a class in which the mean was 64 with a standard deviation of 6. If his z score was +3, what was his exam score? A students commute to school is normally distributed with a mean

77. ## Math

5x-y=6 x+4y=18

78. ## probability

from a pack of 52 cards 2 cards are drawn,the first being replaced before second is drawn .find the probability that first is diamond and second is king

79. ## trig

Given that P=(-1,8) and Q=(-2,1), find the component form and magnitude of the vector 3 PQ.

80. ## math

What is the volume of a box that can be created from a sheet of metal that measures 12 inches by 30 inches? Assume there is no top to the box.

81. ## physics

(a) A bathroom scale has a spring that is compressed by 1.50 cm when a 165 kg person stands on the scale. Assuming the spring is described by Hooke's law, find its force constant. (b) How much would it be compressed if a 94.0 kg person stands on the scale

82. ## physics

A spring has a length of 0.190 m when a 0.300 kg mass hangs from it, and a length of 0.750 m when a 2.80 kg mass hangs from it. (a) What is the force constant of the spring? (b) What is the unloaded length(m) of the spring?

83. ## math

If a circle had a circumference of 8.4 cm, what is the diameter of the circle to the nearest 0.1 cm?

84. ## physic

The velocity of cylinder which is released from rest on Ө degree incline after it has rolled through a distance l is given by

85. ## chemistry 2

Calculate the relative concentrations of o-ethylbenzoic acid (pKa 3.79) and potassium o-ethylbenzoate that are needed to prepare a pH 4.0 buffer I know to set up hassle equation but when i get .21=log[a-/ha] i get lost because i was not given

86. ## math

I flipped a coin 25 times. So since I got heads 15 times, does that mean that the percent of times i got heads is 60%? Yes or no

87. ## math

How do I find 60% of 25?

88. ## calculus

Find the inverse Laplace transform of the function: F(s)=1/(s(s+1)(s+2))

89. ## Calculus!!

Using the identity: L{f(t)/t}=integral F(p)dp (s -->infinity), find the integral of: sin(t)/t dt (0-->infinity)

90. ## physics

When 1.60 multiplied by 105 J of heat enters a cherry pie initially at 20.0°C, its entropy increases by 470 J/K. What is its final temperature?

91. ## physics

(a) How much heat flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 18°C water in reaching equilibrium? (b) What is the change in entropy due to this heat transfer? (c) How much work is made unavailable, taking the lowest

92. ## medical billing

Female admitted for chronic diarrhea and dehydration history of herpes zoster right upper extremity leading to monoparesis she has been treated with heavy doses of neorontin with no significant change xrays shoe lingular and left loer lobe pneumonia and

93. ## problem solving

100 guests each guest needs 3 m2 of space average density of the area is 10kg/m2. how much space does the dining room take up?

94. ## physics

When 1.60 multiplied by 105 J of heat enters a cherry pie initially at 20.0°C, its entropy increases by 470 J/K. What is its final temperature (C)? I use delta S = entropy change = 1.6*10^5*[1/293 - 1/T2] = 470 Solve for T2, but it's not correct. Please

95. ## fnite math

Juan invested \$24,000 in a mutual fund 5 years ago. Today his investment is worth \$34,616. Find the effective annual rate of return on his investment over the 5-year period.

96. ## Finite math

The manager of a money market fund has invested \$4.2 million in certificates of deposit that pay interest at the rate of 5.4%/year compounded quarterly over a period of 5 years. How much will the investment be worth at the end of 5 years?

97. ## Chemistry

At 125 degrees Celsius, the pressure of a sample of He gas is 345 mmHg. At what temperature degrees Celsius will the pressure become 690 mm Hg, if the volume remains constant?

98. ## macroeconomics

b. Now suppose that the gross national debt initially is equal to \$2.5 trillion and the federal government then runs a deficit of \$100 billion: i. What is the new level of gross national debt? ii. If 100 percent of the deficit is financed by the sale of

99. ## western civilization

discuss the reasons for Martin Luther’s break with the Catholic Church and his “radical” views on the role of the Papacy, the road to salvation, and the special nature of the priesthood

100. ## HELP

Help with the following ones: 2-1-4, 2-2-1, 2-2-3, 2-2-4, 2-2-5 Q2_1: QUIZ 2, PROBLEM #1 The shaft ABC is a solid circular cylinder of constant outer diameter 2R and length 3L. The shaft is fixed between walls at A and C and it is composed of two segments

101. ## western civilization

Niccolo Machiavelli, author of "The Prince", is considered to be the first modern political theorist. Why is Machiavelli considered the first modern political observer and discuss his ideas on the relationship between the Prince and God; the importance of

102. ## ENN103F

What do you think is an effective way of fighting corruption?

103. ## physics

(a) How much heat (J) flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 18°C water in reaching equilibrium? (b) What is the change(J/K) in entropy due to this heat transfer? (c) How much work (J) is made unavailable,

104. ## physics

Calculate the net work output of a heat engine following path ABCDA in Figure 14.30, where horizontal axis is V and each unit is 0.5*10^-3 m^3, V1 = 1.0*10^-3 m^3 and V2 = 4.0*10^-3 m^3. The vertical axis is P(N/m^2); A is (1.0*10^-3,2.6*10^6), B is

105. ## physics

When 1.60 multiplied by 105 J of heat enters a cherry pie initially at 20.0°C, its entropy increases by 470 J/K. What is its final temperature?

106. ## algebra

Can someone help me simplify this rational expression x^2-25 /x^2-3x-10 Please show step by step examples. thank you

107. ## algebra

the product of 9/x-1 * 7/x-3

108. ## algebra

what is the quotient of. please show step by step x+4/x-1 / x^2+x/x-1

109. ## algebra

can someone help me find the difference of 3/2x-1 - 5/2x-1 please show step by step process please

110. ## Algebra

Find center, vertices, foci. (x+4)^2/36 + (y-3)^2/100 =1

111. ## retail pharmacy assistant successful selling

an excuse is ? a.a valid reason for not buying b.a weak reason for not buying c.always stated more than once d.the same as an objection my answer is b

112. ## retail pharmacy assistant successful selling

besides the pharmacist and co-workers,another important source of product knowledge is the? a.pharmaceutical company representatives b.regular customers c.local physicians d.medical publications my answer is a

113. ## Calculus

At noon, ship A is 30 nautical miles due west of ship B. Ship A is sailing west at 23 knots and ship B is sailing north at 17 knots. How fast (in knots) is the distance between the ships changing at 4 PM? (Note: 1 knot is a speed of 1 nautical mile per

114. ## Accounting

The St. Augustine Corporation originally budgeted for \$360,000 of fixed overhead. Production was budgeted to be 12,000 units. The standard hours for production were 5 hours per unit. The variable overhead rate was \$3 per hour. Actual fixed overhead was

115. ## creative develpoment

a major goal of any curriculum is to enable children to become: a. divergent thinkers b. mature adults c.self focused d. humanist

116. ## Accounting

The standard costs and actual costs for factory overhead for the manufacture of 2,500 units of actual production are as follows: StandardCosts Fixed overhead (based on 10,000 hours) 3 hours @ \$.80 per hour Variable overhead3 hours @ \$2.00 per hour Actual

117. ## Calc

When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are related by the equation PV^1.4=C where C is a constant. Suppose that at a certain instant the volume is 670 cubic centimeters and the pressure is 97 kPa and is

118. ## problem solving

How much space does the dining area take up? 100 guests, each guest requires 3m2 in the dining area, the average mass of each guest is 65 kg, and the average density of the dining area is 10kg/m2 How I can resolve this problem?

119. ## Math

I am a two digit even number. I am less than 30. When you list out all of my factors, they add up to 60. who am I?