# Questions Asked onOctober 21, 2011

1. ## Physics.

A monster truck has tires with a diameter of 1.10 m and is traveling at 30.0 m/s. After the brakes are applied, the truck slows uniformly and is brought to rest after the tires rotate through 49.0 turns. (a) What is the initial angular speed of the tires?

3. ## Physics

A carousel at a carnival has a diameter of 6.0 m. The ride starts from rest and accelerates at a constant angular acceleration to an angular speed of 0.7 rev/s in 8.8 s. (a) What is the value of the angular acceleration? 1 0.499 rad/s^2 (b) What are the

4. ## physics

The motor of a fan turns a small wheel of radius rm = 1.60 cm.This wheel turns a belt, which is attached to a wheel of radius rf = 2.90 cmthat is mounted to the axle of the fan blades. Measured from the center of this axle, the tip of the fan blades are at

5. ## Math

A college basket ball player makes 80% of her free throws. Suppose this probability is the same for each free throw she attempts. The probability that she makes all of her first four free throws and then misses her fifth attempt this season is

6. ## Physics

A 21.0-g metal cylinder is placed on a turntable, with its center 90 cm from the turntable's center. The coefficient of static friction between the cylinder and the turntable's surface is ìs = 0.84. A thin, massless string of length 90 cm connects the

7. ## Physics

In a tape recorder, the magnetic tape moves at a constant linear speed of 5.6 cm/s. To maintain this constant linear speed, the angular speed of the driving spool (the take-up spool) has to change accordingly. (a) What is the angular speed of the take-up

8. ## chemistry-acid/base extraction.

I do not understand acid base extraction. why should we mix, for example, an organic and aqueous compound to then separate them from each other. please explain confused....

9. ## physics

Brad tosses a rock straight up at 38.4 m/s. What is the rock's velocity after 2.0 seconds?

10. ## chemistry

In the reaction of N2 and H2 to produce NH3, how many moles of H2 will produce 37.9 grams NH3 if sufficient N2 is present? Do not enter units with your answer.

11. ## physics

Three cubes, of side 0, 20, and 30, are placed next to one another (in contact) with their centers along a straight line as shown in the figure. What is the position, along this line, of the CM of this system? Assume the cubes are made of the same uniform

12. ## chemistry

the (OH) of ammonia solution is 4.0 x10-2 M. What is the (H3O+) of the solution?

13. ## Pre Calculus

Logarithms Solve the equation for x 1-ln(3x+2)=0

14. ## Mathematics

In 11 years, the age of Russel will be half of the square of the age he was 13 years ago. Find his present age. Explain your solution

15. ## chemistry

calculate the amount of camphor ( in moles)

16. ## physics

A shot-putter throws the shot with an initial speed of 4.0 m/s from a height of 4.7 ft above the ground. Calculate the range of the shot for each of the following launch angles.

17. ## trig

Q1: In a right-angle triangle the base is 50 m long and its height is 40 m .find its area

18. ## biology

What are the major reservoirs of organic carbon on earth?

19. ## Math Calculus

Economists use production functions to describe how output of a system varies with another variable such as labour or capital. For example, the production function P(L) = 200L + 10L^2 - L^3 goves the output of a system as a function of the number of

20. ## Grammar

Can someone help with periods and commas? Select the correctly punctuated sentence. A) If you have any further comments or questions, please do not hesitate to contact me. B) If you have any further comments or questions please do not hesitate to contact

21. ## math

Find the product. Estimate to check that your answer if reasonable. 191 x 88

22. ## Grammar

More periods and commas. Select the correctly punctuated sentence. A) The implant was ruptured, it was removed, the capsule was irrigated. B) The implant was ruptured it was removed, the capsule was irrigated. C) The implant was ruptured, it was removed

23. ## organization and management

hi, i would like to have a help. if ever, in an exam, i go this question, how to deal with motivation? am i supposed to talk about empoyee motivation, how to motivate the employees? pls do enlighten me on that..in fact am new to this subject.thanks

24. ## vectors

A box weighing 20 N, resting on a ramp, is kept at equilibrium by a 4N force at an angle of 20 degrees to the ramp, together with a friction force of 5N, parallel to the surface of the ramp. Determine the angle of elevation of the ramp.

25. ## zoology

what is diastema

26. ## physics

A girl starting from rest at the top of a 40 m jump, inclined at 30º above the horizontal, has 0.15 coefficient of friction. The jump ends with a frictionless, horizontal part. How far does she land away from the jump, which is 50 m above the horizontal

27. ## Maths Derivatives & Calulus

1) Find d^2y / dx^2 given that y^3 - x^2 = 4 2)If y = xª + ( 1 / xª ) , prove that x^2 . y'' + xy' – a^2 . y = 0 3) Find dy/dx for the following function. cos ( x - y ) = ( y ) ( 2x + 1 ) ^3 4)Find the values of A and B that make f(x) differentiable at

28. ## Math

Banana bought 3 companies for A  :\$20000000 B : \$250000000 G : \$350000000 He made a profit of \$(9.6x10^6) when he sold the companies. He also made a profit of 25% on A and loss of 10% on B. Find the percentage profit he made on G. How do I do this? What

29. ## Maths

The braking distance of a car is directly proportional to te square of it's speed. When the speed is p metres per second, the braking distance is 6m. When the speed is increased by 300%, find (a) an expression for speed of the car (b) the braking distance

30. ## Trigonometric Ratios

You are designing a ramp where the horizontal distance is twice the vertical rise. What will be the ramp angle to the nearest tenth of a degree?

31. ## chm

What is the theoretical yield of iron if we begin the reaction with 10.5g of AL (assume an excess of Fe2)3)

32. ## physics

A generator uses a coil that has 280 turns and a 0.45-T magnetic field. The frequency of this generator is 60.0 Hz, and its emf has an rms value of 120 V. Assuming that each turn of the coil is a square (an approximation), determine the length of the wire

33. ## FIN324

. Chapter 2: Practice Exercise 2-14 b. Chapter 2: Exercises 2-25, 2-27 (part 1 only) 2-29, 2-32, and 2-33

34. ## math

a tank can be filled by one pipe in 3.5 hours and emptied by another in 4.2 hours. if both pipes are running, how long will take to fill an empty tank ?

35. ## maths

a tank can be filled by one pipe in 3.5 hours and emptied by another in 4.2 hours. if both pipes are running, how long will take to fill an empty tank ?

36. ## Chem

When doing a limiting reagant problem, I need to determine to mole ratio, right? But the problem is if 19.6 g of H3PO4 reacted with 22.4 g KOH... How do I get two separate mole ratios? The answers are: 3/1 for H3PO4 and 3/3 for KOH, but why?

37. ## maths

a tank can be filled by one pipe in 3.5 hours and emptied by another in 4.2 hours. if both pipes are running, how long will take to fill an empty tank ?

38. ## literature

anyone know answers to lesson 7 drama

39. ## Calculus

Water is leaking out of an inverted conical tank at a rate of cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height meters and the diameter at the top is meters. If the water level is

40. ## calculus

Water is leaking out of an inverted conical tank at a rate of 1100 cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height 15 meters and the diameter at the top is 4.5 meters. If the water

41. ## us history

Do you think that American foreign policy today should be guided by the principle of "speak softly and carry a big stick"? I don't really understand the quote or the question. Help?

42. ## physics

A shopper in a supermarket pushes a loaded 37 kg cart with a horizontal force of 12 N. The acceleration of gravity is 9.81 m/s2 . a) Disregarding friction, how far will the cart move in 3.8 s, starting from rest? Answer in units of m

43. ## Math

find the limit lim x^2+x / x^5 + 2x^4 + x^3 as:: a) x=0+ b) x=-1-

44. ## chemistry

Benzene and cyclohexane molecules both contain six-membered rings. Benzene is a planar molecule, and cyclohexane is nonplanar. Explain.

45. ## physics

A 75 W light source consumes 75 W of electric power. Typically only about 5% of this energy is emitted as visible light of wavelength 600 nm. (a) Calculate the frequency of the emitted visible light. (b) How many photons per second of visible light does

asked by A 75- light source consumes 75 of electrical power. Assume all this energy goes into emitted light
46. ## english

romeo and juliet compare and contrast essay for love vs infatuation

47. ## Science

A block of ice has the density of 0.97 g/cm3. How much of it will sink below the surface of the water? (Points : 1) About 97 percent of the ice will sink below water. About 3 percent of the ice will sink below water. All—100 percent—of the ice will

48. ## Physics - acceleration..need to find velocity

I am given two points on an acceleration vs time graph: (-2,13),(4,0). When t = -2s, v = 10 m\s. What velocity at t = 6s? I believe acceleration average is (-13/6), but how do I solve the rest get the correct answer, which is 44.7 m/s? Any help or hints

49. ## introduction to business

Suppose the business has total assets worth Rs. 450,000/- and total liabilities of Rs. 800,000/-. Mr. Ali has the personal property of Rs. 200,000/- and Mr. Yasir has the personal property of Rs. 125,000/-. In case the business is liquidated and declared

50. ## physical education

Write five challenges are facing teacher for physical education?

asked by Physical education
51. ## maths

7. Find the reminder when 333666777888999 is divided by 3 or 9 or 11 ?

52. ## maths

hi sir pls suggest me simpel method of solveing this type of questioihns Which is the biggest perfect square amongst the following:- 15129, 12348, 23716, 20736

53. ## maths

The greatest area of the following (a) The radius of circle is 4 (b) The square of diagonal is 4 (c) The square of side is 4 explan option c sir

54. ## chemistry

If 1.72 grams of KHP are needed to exactly neutralize 20.9 mL of a barium hydroxide solution, what is the concentration of the base solution ?

55. ## physics

A 95kg box initially at rest on a horizonal floor requires a 650N horizontal force to set it in motion. After the box is in motion, a horizontal force of 560N keeps it moving at a constant velocity. Determine uS and uK the clock and the floor.

56. ## Chemistry

What volume of a 0.578 M potassium hydroxide solution is needed to exactly neutralize 3.26 grams of KHP ?

57. ## Chemistry

What volume of a 0.578 M potassium hydroxide solution is needed to exactly neutralize 3.26 grams of KHP ?

58. ## Physical education

Write down five challenges facing teaching in primary schools?

asked by Physical education
59. ## Chemistry

What volume of a 0.578 M potassium hydroxide solution is needed to exactly neutralize 3.26 grams of KHP ?

60. ## chemistry

If 1.72 grams of KHP are needed to exactly neutralize 20.9 mL of a barium hydroxide solution, what is the concentration of the base solution ?

61. ## PHYSICS

A 2.5 g ice flake is released from the edge of a hemispherical bowl whose radius r is 40.0 cm. The flake-bowl contact is frictionless. (a) What is the speed of the flake when it reaches the bottom of the bowl? (b) If a second flake with twice the mass was

62. ## Chemistry

What type of lattice would FrCl have? ...im not sure about this, would a lattice form? if so, how to determine lattice type?

Compute the standard deviation for stress. Determine where participants fall in relation to the mean. (Create a diagram that depicts where students fall in relation to standard deviations around the mean. Participant Group Fights Stress 1 PSY 7 86 2 PSY 3

Two objects are placed on a frictionless incline which is inclined at 65.5 degrees. A mass of m1 = 7 kg is tied to a wall, which is at the top of the incline, by rope 1 which is parallel to the incline. A mass of m2 = 13 kg is tied to m1 by rope 2 which is

65. ## geometry

in the given figure,PQ=PS and QR=SR.Prove that triangle PQR is congruent to triangle PSR.

66. ## Finance

suppose the interest rate is 8% apr with monthly compounding. what is the present value of an annuity that pays \$95.00 every 6 months for 6 years.

67. ## Calculus

find d^2y/dx^2 (second derivative) for y=cos^2 4x

68. ## math

The horizontal range, R, in feet that a baseball travels is modeled by this equation. The initial velocity, v, is 90 feet a second. The ball is pitched at an angle of è degrees with the horizontal. At what angles will the ball travel 200 feet?

69. ## math

(0.43 - 0.18) X 4

70. ## marketing

Recommendations on how to retain strategic advantage using e-commerce and information technology

71. ## Finance

Recommendations on how to retain strategic advantage using e-commerce and information technology

72. ## Physics.

A mass of m1 = 12 kg is placed on an incline with an inclination angle of 50 degrees, a coefficient of kinetic friction of 0.16, and a coefficient of static friction of 0.89. m1 is tied to a rope which runs parallel to the incline and runs over a pulley to

73. ## maths

A gold density is 19 times greater than the water and for copper it is 9 times. At what ratio you can mix gold and copper to get 15 times denser than water. Ans: 3 : 2

74. ## Science

What is the main functions of bones of the body?

75. ## trig

Find value of tan75/2

76. ## PHYSICS

An object is placed on an incline with friction. The incline is slowly raised from a zero degrees and at 29.2 degrees, the object begins to slide down the incline. The incline is then raised to 40.5 degrees and the object is placed back on the incline. The

77. ## physics

A helicopter is flying horizontally at 8.2 m/s and an altitude of 17 m when a package of emergency medical supplies is ejected horizontally backward with a speed of 13 m/s relative to the helicopter. Ignoring air resistance, what is the horizontal distance

78. ## physics

what is the minimum initial speed of the dart if it is to hit the monkey before the monkey hits the ground, which is 14.2 m below the initial position of the monkey, if x is 47 m and h = 13 m? (Ignore any effects due to air resistance.)

79. ## Science

You throw a rock horizontally off a cliff with a speed of 10 m/s. after 3.1 seconds, how far were you when threw the rock?

80. ## math

what is 13.4259 rounded to the nearest hundreth?

81. ## statistics

A study of 40 psychology teachers showed that they spent, on average, 12.6 minutes correcting a student's final term paper. Find the 90 percent confidence interval of the mean time for all psychology teachers correcting final term papers when the deviation

82. ## Math

For the table that follows, answer the following questions: x y 1 1/2 2 1 3 3/2 4 - Would the correlation between x and y in the table above be positive or negative? - Find the missing value of y in the table. - How would the values of this table be

83. ## Math

A. If the correlation coefficient is 0.65, what is the sign of the slope of the regression line? B. As the correlation coefficient decreases from -0.97 to -0.99, do the points of the scatter plot move toward the regression line, or away from it?

84. ## Math

Three cards are selected, one at a time from a standard deck of 52 cards. Let x represent the number of tens drawn in a set of 3 cards. (A) If this experiment is completed without replacement, explain why x is not a binomial random variable. (B) If this

85. ## Math

You are given the following data. # of Absences Final Grade 0 96 1 92 2 71 3 66 4 60 5 51 A. Find the correlation coefficient for the data. B. Find the equation for the regression line for the data, and predict the final grade of a student who misses 3.5

86. ## statistics

It is known that 77% of all new products introduced in grocery stores fail (are taken off the market) within 2 years. If a grocery store chain introduces 62 new products, find the following probabilities. (Round your answers to four decimal places.) (d)

87. ## Physics

I had posted this question once before, but no one helped me on this one. So I am posting this question again. Suppose the flame of a gas burner stove emits light just like a blackbody. The flame appears blue emiting most of the light at a wave length of

88. ## Physics

Suppose a flame of a gas burner stove emits light just like a blackbody.The flame appears blue,emiting most of the light as a wave length of 475 nanometers. what is the temperature of the flame. How do I solve this?

89. ## Finance

Houston Inc. is considering a project which involves building a new refrigerated warehouse which will cost \$7,000,000 at year = 0 and which is expected to have before tax operating cash flows of \$500,000 at the end of each of the next 20 years. The Net

90. ## Grammar

Select the correctly punctuated sentence. 1. A) Peter Preziosi, PhD, CAE, is the executive director of AHDI. B) Peter Preziosi PhD, CAE, is the executive director of AHDI. C) Peter Preziosi, PhD, CAE is the executive director of AHDI. My answer is A 2. A)

91. ## chemistry

Consider the reaction, C2H4(g) + H2(g) ® C2H6(g), where DH = – 137 kJ. How many kilojoules are released when 55.3 g of C2H4 reacts?

92. ## math

find the area of a rectangle whose length is 3x and width is 4x +6

93. ## Algebra

An isotope of Glopenium disintegrates according to the formula A(t) = Ao2^-0.0345t where Ao is the initial mass of the substance and t is the time in years. If there are 2 milligrams of Glopenium now, find the number of milligrams that will be left after

94. ## Business English

"You can't qualify for a Home Beautiful credit card until you are 18 years old." Indicate the alternative that both correctly evaluates the sentence and correctly explains the reason for the evaluation. A. Good you-attitude because it begins with the word

95. ## trig

If S is an element of [ 3pi/2 , 2pi ] what quadrant does the terminating side lie in and evaluate for sine theta

A daredevil is riding a motorcycle on the inside of a spherical metal cage of radius 9.7 meters. The total mass of the person and motorcycle is 79.2 kg. If he is to make a vertical circle within the cage at some constant speed, v, what normal force, in

97. ## Business English

which of the following is sexist? a. Our team leaders are Clarke Betz, Brian Early, and Carole Wagner. b. Our new sales reps are Mr. Betz, Mr. Early, and Ms. Wagner. c. Our new sales reps are Mr. Betz, Mr. Earley, and Carole. d. our new sales reps are

98. ## Physics

A person with a mass of 76 kg is moving at a constant speed in a vertical circle on a Ferris wheel with a radius of 37.6 meters. If the difference between his normal force at the bottom (FNB) and the normal force at the top (FNT) of the circle is one third

99. ## PHYSICS

A car is traveling around a circular banked road without friction which is inclined at 24 degrees. When the car is traveling at 18.2 m/s around the road, it is moving at the bottom on the incline (inner radius of the road when viewed from an aerial view).

100. ## Accounting

Please Help. I can't get the balance sheet to balance out at at. I am frustrated! Prepare a Trial Balance, an Income Statement and a Balance Sheet. Doris' Custom Designs Jan. 1 Doris deposits \$10,000 in the bank to start her business. (Hint: use "misc.

101. ## physics

A tennis ball is dropped from 1.60 m above the ground. It rebounds to a height of 1.00 m (assume down to be negative) With what velocity does it leave the ground?

102. ## RE: Account

Hi. I never posted my work yet. Sorry. Here is the question then my answer which I cannot solve!! I cant balance out the balance sheet.... I have spent 2 days on this... Please help: Prepare a Trial Balance, an Income Statement and a Balance Sheet. Doris'

103. ## Chemistry 121

What is the lewis dot structure of C2H5F?

104. ## Check Answers English

Pick the correct answer which corrects the underlined portion of the following sentences in the simplest way possible – for grammar and/or style, without changing the basic meaning of each sentence. 1. Each of the committee members are expected to be

105. ## comm/215

what type of sentence is this: I don't know what you want me to do, the directions are not clear.

106. ## physics

the weight of the block on the table is 402 N and that of the hanging block is 210 N. Ignore all frictional effects, and assuming the pulley to be massless, Find the acceleration of the two blocks

107. ## Physics

A planet with mass 7 x 1024 kg orbits a sun with a period of 1 Earth's years. The speed of the planet around that sun is constant and |v|=43000 m/s. What is the mass of that sun?

108. ## physics

The electric motor of a model train accelerates the train from rest to 0.700 m/s in 17.0 ms. The total mass of the train is 670 g. Find the average power delivered to the train during its acceleration.

109. ## History-Aristophanes Clouds and Science

My assignment for history is to pick one of the following examples from aristophanes clouds and explain how it may seem silly, but it is actually scientific. I don't know how I can explain these scientifically. 1. The example of the flea. (Socrates asked a

110. ## Harvard

How to get a scholorship for Harvard Med skool ???? my best friend wants to know also how to get a scholoship for harvard arts and creative writing skool???? plzz answer this is important for me and my friend

111. ## Repost homework help check answers

Pick the correct answer which corrects the ALL CAP SENTENCE portion of the following sentences in the simplest way possible – for grammar and/or style, without changing the basic meaning of each sentence. 1. EACH OF THE COMMITTEE MEMBERS ARE EXPECTED TO

112. ## Physics

A box is sliding up an incline that makes an angle of 12.0° with respect to the horizontal. The coefficient of kinetic friction between the box and the surface of the incline is 0.180. The initial speed of the box at the bottom of the incline is 1.30 m/s.

113. ## Algebra

Whitney invested \$19,000, part at 5% and part at 7%. If the total interest at the end of the year is \$1,110.,how much did she invest at 5%. I know the answer is \$11,000. I would like to know how to actually solve the equation.

114. ## Algebra, Geo and Measurement

The diagonal of a tv screen is 21 in. The television's diagonal forms angle "m", which measures 50 degrees. What is the height of the screen?

115. ## Algebra

If a ball is thrown vertically upward from a height of 56ft. above ground with an initial velocity of 40ft. per second, then the height of the ball above ground t seconds after it is thrown is given by f(t)=-16t^2 + 40t +56. How many seconds will elapse

asked by Velocity per second
116. ## Physics

You shoot a rock with a wrist-rocket straight up, it takes 6 seconds for it to come back down (IGNORE THE HEIGHT YOU SHOT IT FROM.) How high did the rock go? what was the rock's speed initially going up (V1)? How fast is it traveling when it hits the

117. ## PHYSICS HELP PLEASE !!!!!

A mass of m1 = 12 kg is placed on an incline with an inclination angle of 50 degrees, a coefficient of kinetic friction of 0.16, and a coefficient of static friction of 0.89. m1 is tied to a rope which runs parallel to the incline and runs over a pulley to

118. ## English

Could you plase check these sentences for me? Thank you. 1) She paid the gardener 300 Euros. She always boasts about her excellent school performances. 2) She jokes about my absent-mindedness. She sulks about being left alone (??): I need to give example

119. ## math

Giselle spent a total of \$43 when she went shopping. She spent \$14 for socks, \$18.75 for a wallet, and bought lunch. When she got home, she had \$4 left. How much did she spend for lunch?

120. ## harvard

does harvard have everything ????

121. ## Math

3(x+5)=3x(x+15) what math property is this

122. ## physics

A falling skydiver has a mass of 123 kg. (a) What is the magnitude of the skydiver's acceleration when the upward force of air resistance has a magnitude that is equal to one-fourth of his weight? 7.35 m/s^2 (b) After the parachute opens, the skydiver

123. ## math

Find the distance between (-4, -1) and (1, 5).

asked by stephanie cisneros
124. ## Question

What is Liberal arts ???? i saw it at harvard & i'm just curious

125. ## Another question

is New York University is the best school in ny?? being curouis

126. ## CHEMISTY HELP!!!

A professor found that there are 109 drops of glacial acetic acid in 2.00 mL. Calculate the number of drops of glacial acetic acid, HC2H3O2 required to make 155 ml of 0.25 M acetic acid solution Can anyone walk me through the steps and provide an answer.

127. ## English

I need another word for wake up call, something along the lines of a shocking truth. Thanks!

128. ## Physics

A car starts from rest on a curve with a radius of 130 m and accelerates at 0.600 m/s^2. How many revolutions will the car have gone through when the magnitude of its total acceleration is 2.90 m/s^2?

129. ## algebra

having trouble with finding the rise. slope is 0.40 run is 130 the set up is .040=rise

130. ## Com 155

How can you tell if a paragraph is a summary, synthesis, analysis, or evaluation

131. ## English Sentence correction

Please help me revise this sentence. The following sentence has many problems in grammar, sentence structure, and words. Correct the sentence: BEFORE: Cindy met this cool guy last night who helped her when she dropped her cellphone walking through the

132. ## didnt get to finish

0.40= ______ 130 the slope of a street is 0.40 how many feet vertically does it rise over a horizontal diastance of 130 feet I don't know how to work this problem

133. ## physics

A punter kicks a football with a certain initial velocity of 13.8 m/s at an angle of 20.0o above the horizontal. How long does it take the ball to rise to the highest point of its tragetory?

134. ## health

waht are 4 subsidiaries of tricare

135. ## algebra

find the amount of interest by the following deposit \$3000 at 6.4% compounded semiannually for 2.8 years

136. ## c++ program

will this work for a source code that receive and total collection of payroll amounts entered at the terminal until 999 is reached. #include #include main() { int num = 0; printf("Enter number (-999 to quit:"); scanf("%d" ,&num); while num = 999);

137. ## math

To estimate how many more people live in atherton than needles, which is closer to exact answer : rounding to hundreds or thousands? Explain.

138. ## statistics, find the probability

It is known that 77% of all new products introduced in grocery stores fail (are taken off the market) within 2 years. If a grocery store chain introduces 62 new products, find the following probabilities. (Round your answers to four decimal places.) (d)

139. ## PHYSICS

Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. The mass of the man is 95 kg, and the mass of the woman is 55 kg. The woman pushes on the man with a force of 57 N due east. Determine the

140. ## information systems security

richman is considering buying insurance for each smartphone.use the ALE to detrmine the usefulness of this safeguard.for example,they can purchase insurance for each device for \$25.00 per year.The safeguard value is \$25x 1,000 devices, or \$25,000.it is

141. ## IT/210

Generate a set of test inputs and expected results for the Currency Conversion program. Need to know if this looks right. Test Case 1: Valid Selection = Canadian Inputs: Currency_Type = 1 Int_Value = 100 U.S._Value = 68.12 Expected Output: The value of 100

142. ## physics

The net work done in accelerating a propeller from rest to an angular speed of 110 rad/s is 1822.5 J. What is the moment of inertia of the pro- peller? Answer in units of kg · m2

143. ## physics

A machine part rotates at an angular speed of 0.38 rad/s; its speed is then increased to 3.46 rad/s using an angular acceleration of 0.61 rad/s2. Find the angle through which the part ro- tates before reaching this final speed. Answer in units of rad

144. ## english

correct this sentence grammar. Americans have become the most overweight people in the world. Explain what you think has caused this phenomenon to occur.

145. ## physics

A flywheel in the form of a heavy circular disk of diameter 0.83 m and mass 111 kg is mounted on a frictionless bearing. A motor connected to the flywheel accelerates it from rest to 1430 rev/min. a)What is the moment of inertia of the fly- wheel? Answer

146. ## chemistry

12 mL of 0.0100 M HCl are added to 25.0 mL of a buffer solution that is 0.010 M HC2H3O2 and 0.08 M C2H3O2-. What is the pH of the resulting solution?

147. ## Chemistry

Calculate the pH of a 0.10 M NaHX salt solution. Ka (H2X) = 2.1 x 10-2 Ka (HX-) = 4.5 x 10-8 Can someone explain the steps to do this please?

148. ## Mathematics

Determine the quadratic equation whose solutions are: 3 and -2. Explain your solution

149. ## math

i don't understand how this is supposed to be layed out and how to do it in order... can someone write out the problem so i understand how to answer it, thanks!

150. ## WRiTinG

does this paragraph have a good flow? “Nothing is a waste of time if you use the experience wisely.” – Rodin. Time management is the process of exercising conscious control over the amount of time spent on specific activities. I, too, once had been a

151. ## math

7^0 = 1 7^1 = 7 7^2 = 49 7^3 = 343 7^4 = 2401 Pattern of ones digit is 1,7,9,3,1,7,9,3... However, I don't understand how you can find this pattern in the values given above?

152. ## statistics

A company employs nine people and plans to select a group of six of these employees to receive advanced training. How many ways can the group of six employees be selected?

153. ## Physics

A particle with an initial linear momentum of 2.28 kg · m/s directed along the positive x-axis collides with a second particle, which has an initial linear momentum of 4.56 kg · m/s, directed along the positive y-axis. The final momentum of the first

154. ## Math

I need some help on figureing out how to answer these problems please i have never done this type of math before thank you Find the discount and total to be paid for each of the following: Amount Terms When Paid Discount Total \$2.000 3/30 22 days \$400 2/10

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155. ## chemistry

8 mL of 0.0100 M HCl are added to 22 mL of 0.0100 M acetic acid. What is the pH of the resulting solution?

156. ## Math

1. Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on earth also varies according to the elevation of the object? In particular, the weight of an object follows this equation: , where

157. ## chemistry

mL of 0.0100 M NaOH are added to 25.0 mL of 0.0100 M acetic acid. What is the pH of the resulting solution?

158. ## chemistry

1)Calculate the pH of a 0.10 M NaHX salt solution. Ka (H2X) = 2.1 x 10-2 Ka (HX-) = 4.5 x 10-8 2)Calculate the pH of a 0.10 M NaHX salt solution. Ka (H2X) = 5.3 x 10-5 Ka (HX-) = 5.3 x 10-11

159. ## Mathematics

A rectangular garden 50 m long and 34 m wide is surrounded by a uniform dirt road. Find the width of the road if the total area of the garden and road is 540 m^2. Explain your solution

160. ## Math

1. Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on earth also varies according to the elevation of the object? In particular, the weight of an object follows this equation: , where

asked by Student 315
161. ## math

find least common multiple of 6, 7, 8 prime factorization: (2^(3))(3)(7) = 168 I don't quite get how 3 was picked from 6. I think 2^3 is from 8 and 7 is from 7 but 6 is 3 x 2 = 6 But why not choose 2 instead of 3?

162. ## Algebra

2. The equation D=3.59 (sqrt)h gives the distance, D, in kilometers that a person can see to the horizon from a height, h, in meters. a. Solve this equation for h. b. Mount Evans in the Rocky Mountain National Park, is approximately 4,450 meters in

asked by Student 315
163. ## english (parts of a sentence)

Is (the worried lady) in the following sentence the subject or is it a adjective phrase? Gazing over her shoulder, the worried lady called for help. Can (my computer problem)in the following sentence be considered a dependent clause? If not could you

164. ## math

deshawn and Luke had an equal number of stickers. After deshawn used 26 stickers and Luke lost 38 stickers. deshawn had twice as many stickers as Luke. how many stickers did each of them have in the beginning ?

165. ## math

Lexi and Marie had \$250 altogether. After Lexi spent 2/5 of her money and Marie spent \$40, they had the same amount of money left. how much money did Lexi have in the beginning ?

166. ## PHYSICS

The only force acting on a 2.3 kg body as it moves along the positive x axis has an x component Fx = - 6x N, where x is in meters. The velocity of the body at x = 3.0 m is 8.0 m/s. At what positive value of x will the body have a velocity of 5.0 m/s? I'm

167. ## PHYSICS

A block of mass m lies on a horizontal frictionless surface and is attached to one end of a horizontal spring (spring constant k) whose other end is fixed. The block is initially at rest at the position where the spring is unstretched (x = 0) when a

168. ## chemistry

i do not know how to put those in words, can some one help me, please. CoCL2(s) + 2HF(g)= CoF2(s)+ 2HCL(g) and P6( NO3)2(aq) + 2KL(aq) = PbL2(s) +2KNO3(aq)

169. ## chemistry

i do not know how to put those in words, can some one help me, please. CoCL2(s) + 2HF(g)= CoF2(s)+ 2HCL(g) and P6( NO3)2(aq) + 2KL(aq) = PbL2(s) +2KNO3(aq)

170. ## physics

During a baseball game, a batter hits a popup to a ﬁelder 81 m away. The acceleration of gravity is 9.8 m/s 2 . If the ball remains in the air for 6.7 s, how high does it rise?

171. ## math

The stopping distance of a car traveling 25mph is 61.7ft, and for a car traveling 35mph it is 106ft. The stopping distance in feet can be described by the equation y=ax^2 + bx + c, where x is the speed in mph. Find the values of a and b.

172. ## Social Studies 9

PLEASE I REALLY NEED HELP !!! Do you think Napoleon brayed the french revolution when he became emperor. imagine that marat, roberspierre and danton bring napoleon to trail after his defeat at waterloo. make up a list of changes these leaders of the french

4-3|m+2|>-14

174. ## chemistry

Assume that you were given samples of two white, crystalline compounds, one of them ionic and one covalent. Describe how you might tell which is which. I just can't seem to figure out, can you please help. Thanks.

175. ## CHEM 102

A solution of volume 0.500 L contains 1.70g NH3 and 4.15g (NH4)2SO4. What is the pH of this solution? Answer obtained was 9.76, however it states that it is slightly off...

176. ## chemistry

A 0.1375-g sample of magnesium is burned in a constant volume calorimeter tha has a heat capacity of 3024 J/C. the temperature increases by 1.126 C. calculate the heat given off by the burning Mg in kJ/g and kJ/mol

177. ## NYU

NYU(New York University)? Is it tough to get into? like I want to become an artist and a writer so what addmission and grades (SAT, GPA, AND GRADES), school clubs ???? THANK U

178. ## chemistry

calculate the heat of combustion for the following reactions from the standard enthalpies of formation 2H2(g) + O2(g) = 2H2O(l) 2C2H2(g) + 502(g) = 4CO2(g) + 2 H2O(l)

179. ## chemistry

calculate the heat of combustion for the following reactions from the standard enthalpies of formation 2H2(g) + O2(g) = 2H2O(l) 2C2H2(g) + 502(g) = 4CO2(g) + 2 H2O(l)

180. ## Physics

A 2.50 mass is pushed against a horizontal spring of force constant 26.0 on a frictionless air table. The spring is attached to the tabletop, and the mass is not attached to the spring in any way. When the spring has been compressed enough to store 15.0 of

181. ## chemistry

2 moles of aqueous Barium Nitrate is combined with 1 mole of aqueous Sodium Sulfate. Assuming 100% yield, what mass of Barium Sulfate precipitate would be produced. 1. 175.043 grams 2. 233.391 grams 3. 466.781 grams 4. 116.953 grams

4-3|m+2|>-14

183. ## calculus

Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal places where appropriate. If there is no solution, enter NO SOLUTION.) sin θ cos θ − 2 sin θ = 0

184. ## Physics

The heating element of a simple heater consists of a 2.2m--long, 0.70mm--diameter nichrome wire. When plugged into a 120 V outlet, the heater draws 7.5 A of current when hot. I found that the wire's resistance when it was hot was 16 ohms. Now using this

185. ## Social Studies 9

Why do you think Napoleon was a successful general. List the personal qualities that you think gave him an advantage as a military commander . PLEASE NO GOOGLE SEARCHES .

186. ## PHYSICS

2.6 kg mass initial velocity of v1 =aˆi, where a = 5.95 m/s collides with and sticks to a 1.59 kg mass with an initial velocity of v1 = bˆj, where b = −4.8 m/s. Find the final speed of the composite mass. Answer in units of m/s

187. ## PHYSICS

A flywheel in the form of a heavy circular disk of diameter 0.83 m and mass 111 kg is mounted on a frictionless bearing. A motor connected to the flywheel accelerates it from rest to 1430 rev/min. a)What is the moment of inertia of the fly- wheel? Answer

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188. ## Math

48 more than the quotient of a number and 64

189. ## physics

a basketball player achieves a hang time of 0.996 s in dunking the ball. What vertical height will he attain?

190. ## environmental science

describe and compare total resource use per capita in developed and developing countries