Questions Asked onOctober 9, 2014

1. College Math

A block with a mass of m = 31 kg rests on a frictionless surface and is subject to two forces acting on it. The first force is directed in the negative x-direction with a magnitude of F1 = 11 N. The second has a magnitude of F2 = 22.75 N and acts on the

2. physics

An ice skater is traveling in a straight, horizontal line on the ice with a velocity of v = 6.5 m/s in the positive x-direction. The coefficient of kinetic friction between the skates and the ice is μk = 0.23. v = 6.5 m/s μk = 0.23 A. Using the

3. Physics

A horizontal force, F1 = 85 N, and a force, F2 = 18.4 N acting at an angle of θ to the horizontal, are applied to a block of mass m = 2.1 kg. The coefficient of kinetic friction between the block and the surface is μk = 0.2. The block is moving to the

4. Science

A mutation in a gene that controls mitosis in cells may cause? A. Cancer B. Cystic fibrosis C. Albinism D. Meiosis. Is the answer B? Thanks

5. Science

How does a mutation in the DNA affect the way proteins are made? A. A mutation in the DNA results in misshapen tRNA molecules that do not fit inside the ribosomes. B. A mutation in the DNA results in a change in the mRNA and, ultimately, to a different

6. Science Physics

On the surface of the Moon an astronaut has a weight of Fg = 120 N. The radius of the Moon is Rm = 1.74 x 106 m, the gravitational constant is G = 6.67 x 10-11 N m2kg2 and the mass of the Moon is Mm = 7.35 x 1022 kg. Solve numerically for the mass of the

7. Science

How does a mutation in the DNA affect the way proteins are made? A. A mutation in the DNA results in misshapen tRNA molecules that do not fit inside the ribosomes. B. A mutation in the DNA results in a change in the mRNA and, ultimately, to a different

8. science

1.Darwin assumed that evolutionary change was always slow and gradual. What was the first evidence that suggested evolution change might happen fast sometimes? A. Homologous structures B. Fossils*** C. Reproduction rates D. DNA sequences 2.Which of the

9. Physics

Suppose your car was mired deeply in the mud and you wanted to use the method illustrated in the figure to pull it out. T = 11000 N A. What force would you have to exert perpendicular to the center of the rope to produce a force of 11000 N on the car if

10. Geometry

How do I solve this? Complete the two-column proof. Given : 11x – 6y = –1; x = 8 Prove: 89/6= y 11x – 6y = –1; x = 8 88 – 6y = –1 –6y = –89 y = 89/6 89/6= y • a. Given; b. Symmetric Property of Equality; c. Subtraction Property of

11. art history

why would an artist choose to use harmony in a piece of artwork? A.to create drama within a piece B.to create an average subject that seems dynamic C.to create an impression that the artist is troubled D.to gave a pleasant feeling within the piece that all

12. statistics

During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 29%, CBS 28%, NBC 25%, and independents 18%. A sample of 300 homes two weeks after a Saturday night schedule revision

13. College Science

A chandelier is suspended by two identical, vertical chains side by side. The chandelier's mass is m = 5.3 kg. A. If the tension in one chain is represented by T, write an expression for this tension in terms of m and g, the gravitational acceleration on

14. Math

According to the 2010 census, the population of Nebraska was 1.8*10^6 people. Which state had a smaller population? A. Califoria: 3.7*10^7 B. Rhode Island: 1.1*10^6 C. Texas: 2.5*10^7 D. Missouri: 6*10^6 B?

15. Math

If the stem-and-leaf plot shows kilometers walked by participants in a charity benefit walk. How do I determine how many people participated in the walk and how many of the walkers traveled more than 14 kilometers? I don't want the answer. I just want to

16. Physics

A man drags a 180 lb crate across a floor by pulling on a rope inclined at 20.0 degrees with the horizontal. If the coefficient of static friction is 0.560 , and the coefficient of kinetic friction is 0.350, find the acceleration (in feet/second^2) of the

17. Physics

A crate sets on wooden horizontal surface (a wooden floor). The figure shows a top view of this looking down onto the crate (gravity would be acting into the page). Man one and man two apply forces F1 and F2, at angles of θ1 and θ2 respectively, with the

18. physics

a high jumper approaches the takeoff point at a speed of 7.20 m/s. Assuming that only this speed determines the height to which he can rise, find the maximum height at which the jumper can clear the bar.

19. science

3.If a gap in the fossil record exists between ancient and modern forms of a species, which of the following is the most appropriate conclusion? A. The gap indicates that gradualism must have occurred for the species to evolve from ancient to modern

20. physics

A ring of mass m slides on a smooth vertical rod. A light string is attached to the ring and is passing over a smooth peg distant a from the rod, and at the other end of the string is a mass The ring is held on a level with the peg and released. It first

21. math

About 25% of those called will find an excuse to avoid jury duty. If 11 people are called for jury duty, what is the probability that all 11 will be available to serve on the jury? (Round your answer to three decimal places.)

22. Science

1. When evolution was first proposed, which of the following was used as evidence to support the idea? A. observations of nature B. laboratory experiments C. extensive fossil collections D. genetic sequences 2. How did Darwin and Lamarck differ in their

23. Physics

The mass of a sports car is 1200 kg. The shape of the car is such that the aerodynamic drag coefficient is 0.250 and the frontal area is 2.30 m2. Neglecting all other sources of friction, calculate the initial acceleration of the car ,if it has been

24. Social studies

How has the US economy changed over the past 50 years? I know it used to be mainly farming and manufacturing but now we have expanded on this with medical research technology, and education but I need help expanding this answer

25. Pre algebra

Which statement is true? A.every realy number is an integer B.every rational number is a real number C.every rational number is a perfect square D.every integer is an irrational number An estimate for ✔️47 is between A.4&5 B.5&6 C.6&7 D.7&8 An estimate

26. ap physics

A 52kg skier starts at rest and slides 30m down a hill inclined at 12 degrees relative to the horizontal. List five quantities thatbdescribe the motion of the skier and solve for of them( aleast one of them should be be a kinematic quantity). I know these

Ursula wrote the sum of 5.815 plus 6.021 as a sum of two mixed numbers? A. What sum did she write? B. Compare the sum of the mixed numbers to the sum of the decimals? Please help answer ASAP. Thanks

asked by Ms. Liz
28. Math

The mass of the Earth is close to 5.97x10^24 kg and the mass of Venus is close to 4.87x10^24 kg. What is the approximate combined mass of both planets A.1.08x10^25 B.2.91*10^49 C.1.08^10^48 D.1.08*10^25

29. Algebra

A carpenter who is installing cabinets uses thin pieces of material called shims to fill gaps. The carpenter uses 4 shims to fill a gap that is 1.2 centimeters wide. Three of the shims are 0.75 centimeter, 0.125 centimeter, and 0.09 centimeter wide. What

asked by Ms. Liz
30. Algebra 2

Ahmad will rent a car for a day. The rental company offers two pricing options: Option A and Option B. For each pricing option, cost (in dollars) depends on miles driven, as shown below. Costindollars Milesdriven OptionA OptionB (a) If Ahmad drives the

31. Chem 30 Thermodynamics

Your friend comes across a good deal to purchase a gold ring. She asks you for advice for you to test the ring. The ring has a mass of 4.54 g. When you heat the ring with 94.8 J of energy, its temperature rises from 23.0 degrees celsius to 47.5 degrees

32. statistics

During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 29%, CBS 28%, NBC 25%, and independents 18%. A sample of 300 homes two weeks after a Saturday night schedule revision

33. language art

Is digging a present participle? My answer yes . Am I correct?

34. English

Question about the short story the Wager by Anton Chekhov: The climax comes at the end of the middle section of the story after which the author "ties up loose ends" by telling the reader what happened to each major character. True or False I am really

35. Math! Please check!

Given that lines AC and GE are both perpendicular to line BF, and AG and CE are both perpendicular to GE, you can conclude that? A- AG = CE B- BC = CD C- lines AC and GE are perpendicular to each other D- lines AE and CG are perpendicular to each other My

36. Econ

F. Flinstone has quasilinear preferences and his inverse demand function for Brontosaurus Burgers is P(b)= 30-2b. Mr. Flintstone is currently consuming 10 burgers at a price of 10 dollars. (a) How much money would he be willing to pay to have this amount

37. Math

Sophia owes her brother \$25. she gives her brother \$18 she earned dog sitting. Write an addition expression to describe the situation

38. Empirical Inquiry

Assume that true proportions of the people who support "Obamacare" is a quarter of the population. If you took a sample of 1,000 people living in the United States, what would be the variance of this estimator? what would be the expected value of your

39. HISTORY

1. Discuss the influence of World War I and its aftermath on the arts. Explain what events or experiences inspired artists of all kinds to experiment with new approaches. Then describe the changes that came about in two of the following fields—painting,

40. chemistry

Calculate (a) the moles and (b) the mass of magnesium carbonate at the start if 0.2 moles of sulfuric acid is added to the magnesium carbonate and the excess sulfuric acid made up to a 250 cm3 solution. 25 cm3 of this solution required 0.03 moles of sodium

41. physics

Heather and Jerry are standing on a bridge 53m above a river. Heather throws a rock straight down with a speed of 12m/s . Jerry, at exactly the same instant of time, throws a rock straight up with the same speed. Ignore air resistance. How much time

42. physics

a vertical spring whose spring constant is 850 n/m stands on a table and is compressed 0.400m. what speed can it give to a .300kg ball when released?

43. physics

What force is necessary to keep a 2.00x10^3 car moving up a 15.0 degree incline at a constant velocity? (Mu=.200)

44. economics

which ones are true or false? property rights include the right to buy or sell one's resources and goods All countries are equally effective at enforcing property rights Property can be tangible or intangible The enforcement of property rights prevents

45. Science: Plate Techtonics (giving out medals)

Hey there! I need help with some answers 1. Why do earthquakes occur along the San Andreas fault line? 2. Which of the following causes Earth's plates to move continuously? 3. Which of the following physical features are not caused by plate tectonics?

46. chemistry

In the laboratory a student combines 25.9 mL of a 0.223 M magnesium bromide solution with 23.3 mL of a 0.615 M magnesium acetate solution. What is the final concentration of magnesium cation ? ..... M

47. science

if the trend in the graph continues through the summer, what would you expect the average high temperature in Louisville, Kentucky, to be in august? A. 66 degrees F B. 83 degrees F C. 103 degrees F D. 125 degrees F please help!

48. Physics

A swimmer wishes to swim across a river 600m wide. If he can swim at the rate of 4 km/h in still water and the river flows at 2 km/h, then in what direction must he swim to reach a point exactly opposite to the starting point and when will he reach it? I

49. Science

A person who has cystic fibrosis? A. Inherited two normal alleles from a parent. B. Inherited one mutated allele and one normal allele from each parent. C. Inherited two mutated alleles, one from each parent. D. Inherited two mutated alleles from a parent.

50. math

3 wires with lengths of 32 cm, 24 cm and 16 cm are to be cut into pieces with the same length (with no wire left over)What is the greatest possible length of each piece of wire?

51. pre calculus

sinB + cosB cotB = cscB

52. Math

A carpenter makes a triangular frame by joining three pieces of wood that are 20 cm, 24 cm, and 30 cm long. What is the measure to the nearest degree of the smallest angle in the frame? (Enter only the number.)

53. Physics

The horizontal surface on which the block of mass 5 kg slides is frictionless. The force of 29 N acts on the block in a horizontal direction and the force of 58 N acts on the block at an angle(top Right). What is the magnitude of the resulting acceleration

54. physics

An astronaut comes loose while outside the spacecraft and finds himself floating away from the spacecraft with only a big bag of tools. In desperation, the astronaut throws his bag of tools in the direction of his motion (away from the space station). The

55. Science

What is a genetic mutation? A. The process of decreasing chromosomes numbers to half of what the parent cell has B. The copying of DNA to form identical daughter cells C. A permanent change in an organisms genetic code D. a fusion of egg and sperm cell to

56. Math

Which expression has a value of 199? A- 4 x 28 + 6 x 17 - 15 B- 4 x 17 + 6 x 28 - 38 C- 4 x 38 + 6 x 15 - 28 D- 4 x 15 + 6 x 38 - 88

57. physics

The weight of an astronaut plus his space suit on the Moon is only 270 N. A. How much do they weigh on Earth, in Newtons, assuming the acceleration due to gravity on the moon is 1.67m/s^2= 1584is this right? B. What is the mass of the astronaut and his

58. Social Studies

Why is diplomacy a key part of U.S. foreign policy? Because it helps prevent wars and helps countries settle issues and work together I really don't know

59. Pre-Calc/Trig...

Which of the following quadratic functions has a graph that opens downwards? check all that apply A. y=2x^2-9x+3 B. y=x^2+4x+8 C. y=-(5+2x^2) D. y=60x-15x^2

60. biology

Aquatic organisms: A. have a waxy coating to prevent water loss B. may experience problems with water balance C. typically have a plentiful supply of nitrogen. D. never find light to be in short supply

61. economics

Producer surplus is the difference between: the maximum price a seller is willing to accept and the market price. the maximum price a buyer is willing to pay and the market price. the market price and the minimum price a seller is willing to accept. the

62. physics

A bush baby, an African primate, is capable of leaping vertically to the remarkable height of 2.3 m. To jump this high, the bush baby accelerates over a distance of 0.14m while extending the legs. The acceleration during the jump is approximately constant.

63. math!

A rectangular box is twice as long as it is wide. The height of the box is 3 feet less than the width. If the box is x feet wide, what polynomial represents its volume in cubic feet? A. 4X-3 B. 2X(cubed)+6x(squared) C.2X(squared)-6X D.

64. physics

A 20 kg object is acted on by a conservative force given by F = -3.0 x - 5.0 x 2, with F in newtons and x in meters. Take the potential energy associated with the force to be zero when the object is at x = 0. (a) What is the potential energy of the system

65. physics

Heather and Jerry are standing on a bridge 53m above a river. Heather throws a rock straight down with a speed of 12m/s . Jerry, at exactly the same instant of time, throws a rock straight up with the same speed. Ignore air resistance. How much time

66. Physics

A bush baby, an African primate, is capable of leaping vertically to the remarkable height of 2.3 m. To jump this high, the bush baby accelerates over a distance of 0.14m while extending the legs. The acceleration during the jump is approximately constant.

67. economics

Producer surplus is shown graphically as the area: under the demand curve and above the market price. under the demand curve and below the market price. above the supply curve and below the market price. above the supply curve and below the market price.

68. Physics

A 1300kg car going 20m/s has to stop suddenly. The driver locks the brakes, and the car skids to a halt in a distance of 64m . What was the car's acceleration while stopping? How much work was done by friction to stop the car? What is the coefficient of

69. maths

99. From a box containing 5 black marbles,8 pink marbles, 6 white marbles, and 5 yellow marbles, Kim removed 4 marbles,one of which was black.If she removes one more marble at random,what is the probability that it will be black? a. 1/6 b. 4/21 c. 1/5 d.

70. rela

in the lottery the reader first learn about the characters, setting, and plot. the second part mostly depends on dialogue, how does this change affect the pacing and mood of this part of the story.

71. Statistics

During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 29%, CBS 28%, NBC 25%, and independents 18%. A sample of 300 homes two weeks after a Saturday night schedule revision

72. Maths

A rectangular photo measures 18cm by 7cm. The lengths are enlarged in the ratio 2:3. What is the ratio of the original photo to the area of the enlarged photo?

73. Social Studies

The ideas of montesquieu, a French writer, influenced the fouding fathers to create a government where no person or part has too much power. Why did this idea appeal to the Founding Fathers? a) They had experience the rule of a tyrant. b) They liked the

74. math physics

The handle of a vegetable wagon makes an angle of 25.0° If the peddler exerts a force of 35.0 lb along the handle, how muchwork does the peddler do in pulling the cart 1.00 mi? Is this correct? 35.0*1.00coseine25.0degrees=31.720

asked by ben green
75. Math

Write and integer for each situation: Is this right A) A profit of \$15 \$15 B) A withdrawal of \$9 -\$9

76. science

1. True or False: If the net force of an object is 0 N, the forces are considered unbalanced. (True) 2. Which of the following forces causes a feather to fall slower than a blowing ball? gravity ← rolling friction sliding friction air resistance 3. A

asked by Hannah Marie
77. chemistry

How many hydrogen atoms are in 0.0542 mol of H2SO4? Answer in units of atoms H

78. math

three pigs entered a race around a track. Piggly takes 6 minutes to run one lap, piglet takes 3 minutes while wiggly takes 5 minutes. If all three pigs begin the race at 1:00pm at what time will all be at the starting point again?

79. physics

The pulley system in Figure 6-25 is used to lift a crate of mass m = 41 kg. Note that a chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. Assume that the masses of the chains, pulleys, and ropes are

80. Algebra

Graph the system below and write its solution. =+3xy−6 =y−−12x1

81. Chem 2

calculate the vapor pressure of a solution made by dissolving 61.7g (molar mass= 60.06g/mol) of Urea in 212ml of water at 35C. what is the vapor pressure lowering? the vapor pressure of water at 35c =31.82 mmHg

82. statistics

I need to find the chi square distribution. Thanks During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 29%, CBS 28%, NBC 25%, and independents 18%. A sample of 300 homes

83. Math

Which is greater? 7.08*10^15 or 7.65*10^14 or 7.65*10^4 A. 7.08*10^15 B. 7.65*10^14 C. They are equal D. 7.65*10^4 D?

84. Physics

An apple falls from a tree and hits the ground 8.83 m below. With what speed will it hit the ground? The acceleration of gravity is 9.8 m/s2 . Answer in units of m/s

85. Chemistry

If 14.23 mL of 0.203 M NaOH is required to neutralize .269 g of a monoprotic unknown acid, what is the molecular weight of the unknown acid?

86. Physics

A block is released from rest at the top of an inclined plane. The height of the plane is 5.00 m and it makes an angle of 30.0 degrees with the horizontal . The coefficient of kinetic friction between block and surface is 0.200. What is the speed of the

87. chemistry

An aqueous solution of nitric acid is standardized by titration with a 0.121 M solution of calcium hydroxide. If 24.5 mL of base are required to neutralize 15.4 mL of the acid, what is the molarity of the nitric acid solution?

88. Algebra

Jim is starting a new diet. When he arrived home, he ate 1/3 of the half of a pizza that was left from the previous night. The whole pizza contains approximately 2,000 calories. How many calories did Jim consume?

89. Social Studies

The idea of "natural rights" means that a) Government has a right to rule because the citizens consent. b) Government authority is more important than citizens' rights. c) People are born with rights that cannot be taken away. **** d) People have the right

90. Social Studies

"To no one will we sell, to no one will refuse or delay, right or justice." This quote from the Magna Carta have influenced the colonists to believe that a) no person who was a criminal has the rights to earn money or purchase from others. b) Each person

91. any

asked by Aluminum<3 Helping & C.S.I ♪♫
92. Divisors?

What is the largest remainder possible if the divisor is 10? I am helping my child and do not know how to do this Please show me how to and how to explain it.. Thank u

93. physics

a man fires a rock of a sling shot upwards. the rock has initial velocity of 15m/s. How long will it take for the rock to reach its highest point??

asked by lenex purre
94. physics

a car accelerates uniformly from rest to 29 m/s in 12s along a level of road. ignoring friction, determine the average power (hp) required to accelerate the car if the weight of the car is 1.2 x 10^4 N. I need help setting up

95. math-physics

How much work is done lifting a wrecking ball 6.50 m above the ground? So the formula for this problem would be: W=fs F=200kg S=6.50m (200)(6.50)=1300

asked by ben green

Which of the following is a compound word? A. Together B. Sometime C. Yesterday D. None of the above

97. Networks

Consider the "Preferential Attachment Model" described in lecture 3.3, with m=10. At date t=40, what are: (1) the expected degree for node 15 (born at time i=15), and (2) the expected degree for node 30 (born at time i=30)? [Hint: Use the approximation for

98. Microeconomics

Mary's utility function is U(b,c)= b+ 100c - c^2. b takes up 1 sq ft and c takes up 4 sq ft. a) if Mary has only 144 sq ft, how much of c would she grow? b) if mary grows both b and c, how large must her garden be in sq ft?

99. physics

22) A golf ball moving forward with 1 unit of momentum strikes and bounces backward off a heavy bowling ball that is initially at rest and free to move. The bowling ball is set in motion with a momentum of A) less than 1 unit. B) more than 1 unit. C) 1

100. math

betsy is making a flag. she can choose three colors from red ,white. blue and yellow .how many choices does betsy have?

101. Algorithms

Arrange the following functions in increasing order of growth rate (with g(n) following f(n) in your list if and only if f(n)=O(g(n))). a)2^2^n b)2^n^2 c)n^2 * log(n) d)n e)n^2^n

102. Math

Which of the following is less than 6.5*10^-5? A. 1.4*10^.3 B. 2.5*10^-4 C. 7.8*10^-5 D. 4.6*10^6 Is the answer A?

103. Calculus

Would you please check my answer to make sure I did it right? Bus travel, a bus company finds that monthly costs for one particular year were given by C(t) = 100 + t^2 dollars after t months. After t months the company had P(t) =1000 +t^2 passengers per

104. Physics

In the system shown in the figure, suppose the block has a mass of 2.7kg , the spring has a force constant of 500N/m , and the coefficient of kinetic friction between the block and the floor is 0.18. Find the work done on the block by the spring and by

I was wondering if there was a word like "incident" but with less of a negative connotation.

asked by Joe :)
106. Algebra

Business Computers English Foreign Languages Health Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th Grade 7th Grade 8th Grade

107. Math help Please

Kevin has a triangle table cloth with side lengths of 5 inches, 12 inches. He wants to cover a right angles triangle table with table cloth. Find if the cloth is appropriate for the table. Can someone please help me. We are doing Pythagorean Theorem - I

108. Math

If I plan to average 80 kilometers per hour and stop 45 minutes for lunch how long will it take me to make a 220 kilometer trip?

109. computer science programming

Elements – sequence-series outputting Write a program that prints the following elements: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, (hereto referred to as elements) etc., up till a user-entered value. The program should not print more than 10 numbers per line.

asked by OLEBOGENG HERRY
110. Networks

Consider the model of "Growing Random Networks" described in lecture 3.1 (so the first model where links are added to existing nodes uniformly at random), with m=10. At date t=40, what are: (1) the expected degree for node 15 born at i=15, and (2) the

111. Networks

Consider the "Hybrid Model" described in lecture 3.4, with m=10. Let us compare the cases of a=0.8 and a=0.2. At date t=10,000, consider a node born at date i=20 and a node born at date i=9999. Recall that the approximation of the expected degree at time t

112. Math

How do you estimate using rounding or compatible numbers like 0.97x312?

113. maths

95. Suppose that 387 people will travel on a space shuttle with room for 420 people.Each compartment seats 14 people before the next compartment opens.How many people will ride in the last compartment that opened?

114. Math

On an airplane,there are two seats on the left side in each row and three seats on the right side. There are 90 seats on the right side of the plane. a. How many seats are on the left side of the plane? b. How many seats are there altogether?

115. Math! Please check!

When constructing the circumcenter and circumscribed circle of a triangle, you need to find the intersection of all three of which type of line? A- medians B- perpendicular bisectors C- altitudes D- angle bisectors My choice is B.

116. physics

A car drives at 15 m/s and has an air resistance force of 244 N. What is the air resistance force at 30 m/s?

117. chemistry

A solution is prepared by mixing 4.62 grams of potassium hydroxide in 1.00 L of water. After that, 250.0 mL of a 0.100 M solution of HCl is added to the solution. What is the resulting pH of the final mixture?

118. physics

The resistance of a coil copper wire at 20 degree celsius is 2.21 ohms. After a current of 10 amperes has been flowing in wire for two hours, the resistance of the coil was found o be 2.59 ohms. What is the temperature rise?

119. Math

find three consecutive positive odd integers such that the sum of the squares of the first and second integers is equal to the square of the third integer minus 7?

120. physics

Two people jump out of an airplane. They hold on to each other while falling straight down at a shared terminal speed of 60.7 m/s. Suddenly, they push away from each other. Immediately after separation, the first skydiver (who has a mass of 89.3 kg) has

121. physics

a particle is moving in a straight line the particle starts with speed 5ms and accelerates at a constant rate of 2ms for 8s it then decelerates at a constant rate coming to rest in a further 12s find the total distance during 20s it is 230 but i don't

122. economics

I need to address computer ability to grow the Gross domestic product ,create competition and make other industries efficient help me?

123. Algebra

Graph the system below and write its solution. =3x+y−6 =y−1/2x-1

124. Algebra

PLease ,Please ,Please help me solve this problems #1 Since x = 3y-4, -3(3y-4)+4y = -3 now just solve for y and then x #2 Since x = 4+4y, -(4+4y) = 4y=-4 or something Again, solve for y, then x

125. math

Explain Sean biked 43 miles on Monday, 23 miles on Tuesday, and 62 miles on Wednesday. How many more miles did he bike on Wednesday than on Monday? Draw a picture and write an equation to solve. Then solve

126. Math: Differential Equations

Solve the initial value problem y' = y^2, y(0) = 1 and determine the interval where the solution exists. I understand how the final solution comes to y = 1/(1-x), but do not understand how the solution is defined from (-infinity, 1) and not (1, infinity).

127. Math Help 911

Which of the following is greater than 4.3•10^9. A.2.1•10^9 B.3.2•10^9 C.5.3•10^9 D.7.4•10^8 Is the answer C?

128. Algebra

Veronica's cell phone plan costs \$35 dollars per month plus \$0.05 per minute used. Veronica's bill last month was \$40.75. How many minutes did she use? 40.75 divided by .05 ?

129. Social Studies

"No free man shall be seized [arrested] or imprisoned, or stipped of his rights or possessions ... except by the lawful judgment of his peers." This quote from the Magna Catta shows the ideals that set up which branch of the goverment? a) Executive b)

130. math

145% of 320 what does this =

131. chem

How much bromobenzene (C6H5Br) can we make from 6.58 g of benzene (C6H6) and 3.81 g of bromine according to the equation below?

132. Statistics

Assume that the mean hourly cost to operate a commercial airplane follows the normal distribution with a mean of \$2,325 per hour and a standard deviation of \$240. What is the operating cost for the lowest 5 percent of the airplanes?

133. Music

Try to find examples of three pieces of music that use three different types of texture....Thank You for help...

134. algebra 2

Find the GCF and LCM of the following monomials. 1.)28,35,42 2.)9x^2y and 36xy^3

135. physics

A grenade thrown straight up in the air has an initial speed of 27 m/s. How long will it take before it returns to the thrower's hand?

136. physics

Calculate the distance Michael will travel if he maintain an average speed of 9.4 m/s for 2.2 seconds

137. physics

Forces of 4.57 N and 4.74 N act at right angles on a reddish-green block of mass 5.76 kg. How much acceleration occurs?

138. ALGEBRA 2

Solve the compound inequality.

139. Algebra

Solve the compound inequality.

140. Algebra

Solve the compound inequality. >−2x3−11 or ≥+3x36 Write the solution in interval notation. If there is no solution, enter ∅ .

141. statistics

if you lose 10% a year, how much will be left of 2.44 million in 26 years?

142. ENGLISH CLASS

Motivation is poor. complete sentence fragment run-on

143. math

determine known length for a triangle one side is 2.5cm other side 1.6cm find how solve the third side

144. Math

What is the slope of the line whose equation is –48 = 2x − 8y? This is supposed to be answered in a fraction.. I'm stuck

145. math

What is the surface area of a sphere that has a radius of 5 cm? Use 3.14 for . Round to the nearest tenth.

146. Social Studies

Four statements by Enlightenment writers: 1. To secure these rights, Governemts are instituted among Men, deriving their just powers form the consent of the governed. 2. When a Monarchy is once bitten it the quick, by those Democratical writers...It wants

147. Math

What is 2,724 x 588? Round each term to the greatest place.

148. Physics Help Please!!!!

A car is at rest on a horizontal road. What is the value of the frictional force? Explain your answer. A bison stands at rest on the horizontal ground. What is the value of the frictional force? Explain. The normal force always has a direction

149. physics,electrostatics

A 40uf parallel plate capacitor is charged to 12v. The capacitor is removed from the battery and the separation distance increased from 2mm to 3mm. What is the total charge on the capacitor? How much energy was stored in the capacitor when the distance was

150. Algebra

Solve the compound inequality. >−2x3−11 or ≥+3x36 Write the solution in interval notation. If there is no solution, enter ∅ .

151. Math

A box of chalk and 2 staplers cost \$10. Three boxes of chalk and 2 staplers cost\$18. Find the cost of 1 box of chalk and 1 stapler.

152. History

Explain the six features of Ancient Egypt

153. math

On a treadmill, Andrea walks a distance of 2 km. She then doubles the speed of the treadmill and jogs for another 2 km. If the total time she spent on the treadmill is 1 hour, find the speeds at which she walks and jogs.

154. physics

a rock is thrown at a downwards angle of 15 degrees from the top of a 120 m cliff with a speed of 25 m/s. what will be its speed when it strokes the ground at the base of the cliff? I know to use the conservation of energy but I don't know how to set it

155. geometry

if two lines are parallel, do they determine a plane? (is there one, and only one plane which contains the lines)

156. Math

With 20 pirates and 1000 pieces of gold: Captain Jack gets 113 gold coins (151 if you count the 38 everyone in the crew gets) First Mate gets 66 gold coins (104 if you count the 38 coins everyone in the crew gets) The Crew gets 38 gold coins each The PBA

157. chemistry

Can you make a 2 carbon molecule of Ketone?

158. Math

With 20 pirates and 1000 pieces of gold: Captain Jack gets 113 gold coins (151 if you count the 38 everyone in the crew gets) First Mate gets 66 gold coins (104 if you count the 38 coins everyone in the crew gets) The Crew gets 38 gold coins each The PBA

asked by Need Help
159. Social studies

Ms.sue you know the question I wrote yesterday could give me the starting point of that story pleas

160. Social studies

Write a one page story a about an explorer (can be you) Include: where you would explore ( Fiji land) Transportation to get there, food, clothing tools,weapons. All Fromm 1400s or 1500s Does not need current times

161. Biology

I need help with the life cycle of an ostrich! And what could go wrong with the development. I don't understand if it's bacterial or viral infections that may occur...

162. Economics

explain why positive and negative externalities are market failures

163. Physics

I'm having some trouble figuring out how to do the following question: A ball punted vertically has a hang time of 3.65 seconds. What was its initial velocity? (I use an acceleration of -10 m/s/s) Thanks!

164. SS

What are some similarities between Canadian and American culture and economy?

165. physics-intro

How much work is done in lifting 450 lb of cement 75 ft above the ground? So basically its W=fs (450lb)(75ft)=33750lb

asked by ben green
166. idk

what grade level is physics??

asked by Aluminum<3 Helping & C.S.I ♪♫
167. Math

write these pairs with common denominators 5/8 and 1/2 ?

168. Chemistry

How many liters of liquid nitrogen are produced when 360.0 L of nitrogen gas is liquified at 77.36 kl

169. Math

What is twice the sum of 124 and 96? Is this right 124+96=220 220+220=440 answer is 440

171. Math

(5.63+.918) - (.83+.9) = 6.548 - .173 = 6.375

172. Physics

There are 2 objects connected with ideal, massless string that is hanging over an ideal (massless and frictionless) pulley. The angled surface is at a 25.0 degree angle. All surfaces are firctionless. A force F1 is applied horizontally as shown to the

173. Physics

The battleship Massachusetts' 16" guns could fire a 1-ton shell with an initial velocity of 800m/s. If it fired its guns at an angle of 45 degrees above horizontal, how high and how far would the shells travel? I'm pretty sure that I need to use the

asked by Devynn Austin
174. Algebra

How would you write the number 11.836 as mixed number, and how would you write it as a decimal. Please help answer thanks

asked by Ms. Liz
175. English

1. i want to marry Mrs aouda tomorrow, the 23rd December. 2. i want to marry Mrs Aouda tomorrow, 23rd December. 3. i want to marry Mrs Aouda tomorrow, December 23rd. 4. i want to marry Mrs Aouda tomorrow, December the 23rd. 5. i want to marry Mrs Aouda

176. Chemistry

What are the parts of a calorimeter used in chemistry?

177. Math

How do rate tables help me find equivalent ratios

178. english

in the sentence The old teeth of a shark are replaced by new teeth as often as every one to two weeks. would shark be both a common noun and a concrete noun?

179. physics

A particle of mass 10 kg is slowly lifted up to a height of 10 metre then calculate the workdone by external and gravity force ?

180. Math (please check)

Compute the indicated derivative. d/dt [ ( t^2 + t^0.5 ) ( t^0.5 - t^-0.5 ) ] |t=1 I took the f and g prime then I used the quotient rule my final answer came out to 3t^1.5 - 1.5t^0.5 + t + 0.5t^-1 then I plugged 1 in for t and got 5.196 Please let me know

181. physics

An earthquake wave has a wave length of 523m and travels with a speed of 4.6km through a portiin of Earths crust. a) what is its frequency? b) if it travels into a different portion of Earths crust, where its speed is 7.5km/s,what is its new wavelength?

asked by lenex purre
182. Math

What's 1,601,712 and 3,139 rounded to the greatest term?

183. Chemistry

What is the pH of a solution containing both 0.954 M formic acid (HCO2H, Ka = 1.8x10-4) and 1.260 M phenol (HC6H5O, Ka = 1.6x10-10)?

184. College question

I'm a high school senior and I'm planning on applying to SBU. I have a 4.0 gpa, a 1690 on the SAT(am going to retake), a 24 on the ACT, took 3 AP classes and am currently taking 2 more, part of National Honor Society, in the top 5% of my school, have an

185. Math

I need an expiation on a math concept, because I know the right answer, I just don't know why it is The problem says to find the absolute maximum and minimum of the function f(x)=x^3-12x over the interval [-5, 2] I found the 1st der. 3x^2-12 and set equal

186. English 9

Misplaced and dangling modifiers Having won more than \$200,000 during her career, her performances include victories in over 20 tournaments. I think it would be better... During her career, her performances include victories in over 20 tournaments winning

asked by Sweet Pea
187. Physics

A young girl (m= 30 kg) rides a skateboard (m= 3.2 kg) at a speed of 4.2 m/s. (a) How much work does the girl have to do to bring herself to a stop? (b) How far does she travel if it takes 6.0 s to stop? (c) What is the magnitude of the stopping force? So

188. Science- Physics

A young girl (m= 30 kg) rides a skateboard (m= 3.2 kg) at a speed of 4.2 m/s. (a) How much work does the girl have to do to bring herself to a stop? (b) How far does she travel if it takes 6.0 s to stop? (c) What is the magnitude of the stopping force? So

189. Algebra 2

-3x+4y=-3 x=3y-4 X-4y=4 -x=4y=-4

190. Physics

A grenade is thrown up into the air with an initial velocity of 27 m/s. How long does it take to return to the thrower's hand? I got 5.4 s, but I am very unsure.

191. Biology

What are some examples of homeostasis in one-celled organisms?

192. Math check

Subtract -28 - (-33)= -61

193. Algebra 2

Please help me!!!! The Cooper family and the Anderson family each used their sprinklers last summer. The water output rate for the Cooper family's sprinkler was 20L per hour. The water output rate for the Anderson family's sprinkler was 25L per hour. The

194. Social Studies

What are some lifestyles for the following countries: -Kazakhstan -Kyrgyzstan -Latvia -Liechtenstein

195. math

Find the equation of the tangent line to the graph of f(x) = (4x − 8)/(x + 1) at x = 0. (Use y for your dependent variable.)

196. Math

How to make an equation out of 0,5 and -3,-4 on a coordinate plane

197. 3rd grade math

What strategy do you use if you draw an array of 5 columns with 7 rows 4 rows are shaded. The other 3 rows are not shaded.How do you find the answer to 35 ÷ 5?

198. physics

2 masses m and 4m are placed at 12meter distance. where a mass of 10 kg can be placed between them so that the net gravitation force on it become zero.

199. physics

2 masses m and 4m are placed at 12meter distance. where a mass of 10 kg can be placed between them so that the net gravitation force on it become zero.

200. Math

How to make an equation out of 3,3 and 0,1 on a coordinate plane

201. english

what does it mean when the question is asking you ¨what was something that ¨stuck with you¨ during the reading of this article? explain." thanks

202. English

Are the authors stance and opinion similar ? Can you give me an example of each?

203. Pharmacy Tech

15gr of potassium chloride is diluted in 2 L of sterile water for injection. What is the final percent strength?

204. English

1. He looks in his diary and sees the wrong data. (Do we have to use the preposition 'in'? How about 'looks at'?) 2. Fix uses a warrant to arrest Fogg. 3. Fix uses a document to arrest Fogg. (Is 'a warrant' a document? Can we substitute 'a paper' for 'a

205. English

What is your stance on BASE jumping

206. algebra

how do u solve x^3+2x^2-6x-6=(x-2)(x+3)(x+k)

207. Abnormal Psychology

Obesity __________ is strongly related to obesity in __________.

208. math

Mr. Winsett and Ms. Phelps are having a back to school party. Mr. winsett brought 48 hot wings and mrs. phelps brought 18 cans of soda. what is the greatest amount of people that can come and share the food equally with no left overs?

209. English

In this sentence, is there an error in one of the lines or is there no error The hikers caught sight of deers running through the forest no error

210. coolkid1234567890

Purple Blue elementary school is 187 miles from washington dc. According to google maps it should take about 3 hours and 5miutes to get there. What is our speed. Please tell me how you did it and the answer. Thank you

211. math

if two lines are parallel, do they determine a plane? (is there one, and only one plane which contains the lines)

asked by easy question
212. Physics

I'm having a bit of trouble with this problem. A ball is thrown upwards and stays in the air for 3.65 seconds. What is the initial velocity? (I use an acceleration of -10 m/s/s) I got an answer of 18.25 m/s/s but I'm not sure that it's correct. I would

213. SS

Does urbanization happen more in Canada or the US? The US, I think...

214. @someone who can show me how to do this

Hi I'm Aluminum

asked by Aluminum<3 Helping and C.S.I
215. math

2/5(x+3)=6 2/5x+6/5=6 5/2(2/5x) +6/5 = 6(5/2) X+6/5=15 X-6/5=15-6/5 X=

217. english 122

when you contribute to a research conversation, which of the following skills is not strictly?

218. Algebra 2

The sets D and E are defined as follows. =D>z|z4 D={z|z74} E={z|z

219. Math

KILOWATT-HOURS OF ELECTRICITY USED MONTH KWH USED/ MONTH DWH USED JAN 2,640 JUL 960 FEB 2,190 AUG 1,380 MAR 1,500 SEP 1,110 APR 1,620 OCT 840 MAY 1,440 NOV 1,260 JUN 1,080 DEC 1,820 A. Describe how to find the range of the data set. B. Find the range.

220. theater/play

i need a bullying script play that would last 5-10 minutes or a play, with john doe as the song but i don't know what theme that's it goes with, also i need to do the script i tried doing one about bullying but i didn't like it, any suggestions?? also

221. Math

Which of the following is greater than 4.3*10^9 A. 2.1*10^9 B. 3.2*10^9 C. 5.3*10^9 D. 7.4*10^8 Is the answer C? Thank you

2/3+3/4+7/8

223. math

Joe starts a gym. In the first year, 300 people join. If the membership grows at an annual rate of 4%, how many members will there be after 5 years?

224. math

Have the following set of eight blocks: 1 2 3 4 5 7 8 9. Arrange the blocks into two groups of four such that each group has the same total?

225. Math! Please check!

Okay, so I have a question but it requires a picture and I am not sure how to add it. h t t p : / / t a k e e x a m . n e x t . e c o l l e g e . c o m / e c / c o u r s e s /4 6 1 2 2 / C R S - M T H 2 0 3 A- 3 9 5 0 2 5 8 / G M T _ Q 1 1 _ 2 . b m p

226. English 9

I have to rewrite sent. to fix misplaced and dangling phrases. 1. To become an outstanding all-around player like Lambert, many hours of training are required. My revised sent is... Many hours of training are required to become an outstanding all-around

asked by Sweet Pea
227. Math

The diagonal of a rectangle is 26 inches long. Its length is 14 inches more than the height. What is the height of the rectangle?

228. Algebra 2

Hello any one out there can you please help me out with this problem and Thank you in advance. !.x+y=34 x-y=20 2.-7x+6y=11 -5x+9y-11

This is for my cousin Kara planted seeds in her garden.that summer, many tomatoes grew. cause: Effect:

230. History

Was there a civil war in Canada?