# Questions Asked onFebruary 20, 2014

1. ## Physics

A 600-kg car is going around a curve with a radius of 120 m that is banked at an angle of 25.0° with a speed of 30.0 m/s.The coefficient of static friction between the car and the road is 0.300. What is the force exerted by friction on the car?

2. ## Chem

In a 1.0x10^-6 M solution of HNO3(aq) at 25 degrees C, identify the relative molar amounts of species from most to least. HNO3 H3O+ H2O OH- NO3-

3. ## physics

Suppose two children push horizontally, but in exactly opposite directions, on a third child in a wagon. The first child exerts a force of 75.0 N, the second a force of 95.0 N, friction is 12.0 N, and the mass of the third child plus wagon is 21.0 kg. (c)

5. ## Algebra

How do I solve this problem for daily inventory costs: The materials manager for a billiard ball maker must periodically place orders for resin, one of the raw materials used in producing billiard balls. She knows that manufacturing uses resin at a rate of

=the height in metres of a weather ballon above the ground after t seconds can be modelled by the function h(t)=-2t^3+3t^2+149, for 0

7. ## Chemistry

Three people weigh on a standard mass of 2.00 g on the same balance. Each person obtains a reading of 7.32 for the mass of the standard. These results imply that the balance that was used is ___________. a) neither accurate nor precise b) accurate c)

8. ## Statistics

Astronomers treat the number of stars in a given volume of space as a Poisson random variable. The density in the Milky Way Galaxy in the vicinity of our solar system is one star per 16 cubic light years. (a) What is the probability of three or more stars

9. ## Physics

A student performs a ballistic pendulum experiment using an apparatus similar to that shown in the figure. Initially the bullet is fired at the block while the block is at rest (at its lowest swing point). After the bullet hits the block, the block rises

10. ## Chemistry

Calculate the concentration of IO3– in a 9.23 mM Pb(NO3)2 solution saturated with Pb(IO3)2. The Ksp of Pb(IO3)2 is 2.5 × 10-13. Assume that Pb(IO3)2 is a negligible source of Pb2 compared to Pb(NO3)2.

11. ## Java

write a java program to read a record name, age, and salary. Calculate the tax amount on the salary field display the new record.

12. ## History

Can I study Archeology while I did mathematical Literacy at school ?

13. ## math

A stairway runs up the edge of the pyramid. From bottom to top the stairway is 92 m long. The stairway makes an angle of 70° to the base edge, as shown. A line from the middle of one of the base edges to the top of the pyramid makes an angle of elevation

What is an example of bias in media? a.) a website that presents a controversial opinion as though it were fact b.) a television news program that presents both side of particular issue

15. ## math

a jar contains 26 fluid ounces of spaguetti sauce. How many cups of spaguetti sauce do 4 jars contain?

16. ## physics

A 33.3- kg block (m1) is on a horizontal surface, connected to a 5.1- kg block (m2) by a massless string. The pulley is massless and frictionless. A force of 220.1 N acts on m1 at an angle of 32.p deg. The coefficient of kinetic friction between m1 and the

17. ## Probability

There are 49 mice in a pet shop. 30 mice are white. 27 mice are male. 18 mice have short tails. 8 mice are white and have short tails. 11 mice are male and have short tails. 7 mice are male but neither white nor short-tailed. 5 mice have all three

18. ## chemistry

The reaction of fluorine with ammonia produces dinitrogen tetra fluoride and hydrogen fluorida. 5F2(g)+2NH(g)---> N2F4(g)+6HF(g) A. If you have 66.6gNH3, how many grams of F2 are required for a complete reaction? B. how many grams of NH3 are required to

19. ## 1 algebra question

What is the difference of the following polynomials? (6x^3 – 2x^2 +4) -(2x^3 + 4x^2 – 5) ________________

20. ## Chem

I'm not sure about this: Rank from most to least valence electrons- Xe, In, I, Sb, Rb Thanks -MC

21. ## Language Arts ~CHECK MY ANSWERS~

Read the following passage to answer #1 and #2. April 15, Miss Kinnian says I'm learning fast. She read some of the Progress Reports and she looked at me kind of funny. She says I'm a fine person and I'll show them all. I asked her why. She said never mind

22. ## Math

Determine if the lines L1 and L2 passing through the give pair of points are parallel, perpendicular, or neither. L1: (-2, -3), (1, 3) and L2: (4, 5), (-4, -11)

23. ## calculus

#3 A solid has a base in the form of the ellipse: x^2/25 + y^2/16 = 1. Find the volume if every cross section perpendicular to the x-axis is an isosceles triangle whose altitude is 6 inches. #4 Use the same base and cross sections as #3, but change the

24. ## Algebra

A woman bought some large frames for \$16 each and some small frames for \$7 each at a closeout sale. If she bought 20 frames for \$176, find how many of each type she bought? She bought ___ large frames? She bought ___ small frames?

25. ## Math

Determine whether the equation represents direct, inverse, joint, or combined variation. y = 2x on 3rd

26. ## Algebra

(Can someone please help?) A woman bought some large frames for \$16 each and some small frames for \$7 each at a closeout sale. If she bought 20 frames for \$176, find how many of each type she bought? She bought ___ large frames? She bought ___ small

27. ## Algebra

The sum of two numbers is 3. Four times the larger number plus three times the smaller number is 25. Find the numbers. The larger number is___? and the smaller number is___?

28. ## English

What role does freedom play in the poems you read in this unit? Write about at least three of the poems, describing how the poet uses imagery to depict freedom, the lack of it, or the desire for it.

29. ## Math

Kimberly is 3 times as old as her sister, Halley .Find the ratio of Kimberley"s age to Hallet"s age. Give your answer in fraction form.

30. ## algebra

Which of the following is equal to (2x/5-9)+9. Answers are 2x/5, 5x/2, 2x/5-45, (2 x-9)+45

31. ## Intermediate Algebra

A basketball team recently scored a total of 95 points on a combination of 2-point field goals, 3-point field goals, and 1-point foul shots. Altogether, the team made 54 baskets and 16 more 2-pointers than foul shots. How many shots of each kind were made?

32. ## STATS

Archaeologists often find only parts of ancient human remains. For example, they may find a small finger bone, called the metacarpal bone. Is it possible to predict the height of a human from the length of his or her metacarpal bone? To investigate, a

33. ## English

Have you discovered where you left your books?

34. ## Homework help plz( Steve or Reiny)

Determine if the number is written in scientific notation. If not, explain 32 * 10^4. (1 point) No; it is not written as a power of 10. No; the first factor is not a number between 1 and 10. Yes; the number is written in scientific notation. Determine if

35. ## Science

Which of the following pairs of structures share the function of reabsorbing water into the body? a- Lungs, Stomach b- bone marrow, small intestine c- hypothalamus, pancreas d- large intestine, kidney D?

36. ## Chemistry

1. Calculate the pH for each of the following cases in the titration of 25.0 mL of 0.240 M pyridine, C5H5N(aq) with 0.240 M HBr(aq): (a) before addition of any HBr (b) after addition of 12.5 mL of HBr (c) after addition of 22.0 mL of HBr (d) after addition

37. ## Science

Which of the following body systems does not rely on the autonomic nervous system to simulate involuntary events? A. skeletal system B. digestive system C. circulatory system D. respiratory system A

38. ## Algebra 1 (Reiny)

The measures of the sides of a triangle are shown as polynomials. The measures are: 2s^3 + 4; 5s; 4s^2 + 1. Write a polynomial to represent the perimeter of the triangle.

39. ## Algebra

Can you please help me factor these expressions? Completely factor the following expressions. Please show work. 4x^2 - 8x - 12 + 6x 144 - 9p^2 5c^2 - 24cd - 5d^2 w^2 - 17w + 42 256z^2 - 4 - 192z^2 + 3 2a^2 c^3 - 14bc^3 + 32c^3 d^2 35g^2 + 6g - 9 3j^3 -

40. ## Art - Color schemes

I've been searching for a good 3-way color scheme. Blue, purple, & pink are my usual choice, but I need a new scheme for this.

41. ## chemistry

(a) The measured pH of a 0.200 M HBr solution at 25°C is 0.806. Calculate the activity coefficient for H . (b) The measured pH of a 0.200 M HNO3 solution at the same temperature is 0.822. Calculate the activity coefficient for H in this solution.

42. ## Math

A triangular traffic island has a base half as long as it's height. The island has an area of 144m^2. Find the base and the height.

43. ## algebra

The equation y-100x=2000 can be used to represent monthly salary of a salary of a salesman ,y when he sells x computer system what is the salesman monthly salary if he sells no computer. Answers are 20, 100, 2000, 2100 thank you

44. ## Math Algebra

f varies jointly as g2 and h, and f = 50 when g = 4 and h = 2. Find when g = 3 and h = 6

45. ## Algebra

(Can someone please help me with this question?) When three pumps, A, B, and C, are running together, they can pump 3400 gal per hour. When only A, and B are running, 1900 gal per hour can be pumped. When only A and C are running, 2300 gal per hour can be

46. ## chemistry

What is the percent yield of NaCl if 31.0 g of CuCl2 reacts with excess NaNO3 to produce 21.2 g of NaCl?

47. ## Math

Mandy scores b points in a basketball game. Jay scores 3 points less than Mandy. Kareem scores 2 times as many points as Mandy. Find the number of points that Jay scores in terms of b.

48. ## Physics

A uniform rope with length L and mass m is held at one end and whirled in a horizontal circle with angular velocity w. You can ignore the force of gravity on the rope. (a) At a point on the rope a distance r from the end that is held, what is the tension

The size of an organism is most likely determined by...? Answer choices: 1. its genes but not its environment 2. its environment but not its genes 3. its genes and its environment 4. neither its genes nor its environment MY ANSWER: 3. its genes and its

50. ## AP Chemistry

For 2 SO2(g) + O2(g) equilibrium reaction arrow 2SO3(g), Kp = 3.0 104 at 700. K. In a 2.00-L vessel the equilibrium mixture contains 1.11 g of SO3 and 0.106 g of O2. How many grams of SO2 are in the vessel

51. ## Math

If taxi 1 charges 2.50 to ride and 20 cents for every 1/10 of a mile, and taxi 2 charges 3.25 to ride and 15 cents for every 1/10 of a mile at what point will they cost the same thing

52. ## Math

If x varies inversely as y, and if x = 24 when y = 6, find x when y = 15.

53. ## Math

If x varies directly as y, and if x = 6 when y = 15, find y when x = 30

54. ## Probability

The probability that Kate goes to the cinema is 0.2. If Kate does not go Claire goes. If Kate goes to the cinema the probability that she is late home is 0.3. If Clair goes to the cinema the probability that she is late home is 0.6. Calculate the

55. ## math

Hadley's softball team has a phone tree in case a game is cancelled.The coach calls 3 players. Then each of those players calls 3 players and so on.How many players will be notified during the 3rd round of calls?

56. ## Math

Archaeologists often find only parts of ancient human remains. For example, they may find a small finger bone, called the metacarpal bone. Is it possible to predict the height of a human from the length of his or her metacarpal bone? To investigate, a

57. ## math

on monday carlos ran 1/8 of a mile. on wednesday he ran 5/6 of a mile. carlos ran 3/8 of a mile on friday. which day did calos run the farthest?

58. ## Math

1. Find two numbers whose sum is 84 and one number is 18 more than the other. Answer: 84-18=2x x=33 84+18=2x x=51 2. A board 125 inches long is to be cut into two equal parts so that one part is 4 inches less than twice as long as the other part. Find the

asked by Finding and solving equations
59. ## math

lucy has a collection of buttons 2/3 of her buttons are square and 2/8 of her buttons are round. does lucy have more square buttons or round buttons?

60. ## Bio Chemistry

There are two main ways in which molecules are transported into and out of cells - active transport and passive transport. Which of the following statements is true of passive transport?

61. ## Probability

There are 49 mice in a pet shop. 30 mice are white. 27 mice are male. 18 mice have short tails. 8 mice are white and have short tails. 11 mice are male and have short tails. 7 mice are male but neither white nor short-tailed. 5 mice have all three

62. ## math

Suppose an investment of \$2,300 doubles in value every decade. The function gives the value of the investment after x decades. How much is the investment worth after 2 decades? (1 point)

63. ## AP Chemistry

For 2 SO2(g) + O2(g) equilibrium reaction arrow 2SO3(g), Kp = 3.0 104 at 700. K. In a 2.00-L vessel the equilibrium mixture contains 1.11 g of SO3 and 0.106 g of O2. How many grams of SO2 are in the vessel

64. ## College Algebra

Find the present value of \$100,000 if interest is paid at a rate of 8% per year, compounded monthly, for 5 years.

65. ## Chemistry

A compound is known to be a cesium halide, CsX. If 3.00 grams of the salt is dissolved in exactly 100.0 grams of water, the solution freezes at -0.735°C. What is the chemical formula for the salt?

66. ## math12A TRIG pleas help

a farmer wishes to fence a field in the form of a right triangle.If one angle of the right triangle is 43.2 degree and the hypotenuse is 200yard,find the amount of fencing needed.

67. ## Hydrodynamics

Natural frequency of the sloshing water in a swimming pool of a cruiser ship is studied by an experimental set up with a scale of 1/10. If the natural frequency is found 3.5 Hz, then what is the natural frequency for full scale?

68. ## Limits

Let lim f(x) =16 as x->4 and lim g(x) =8 as x->4 Use the limit rules to find lim [cos(pi*f(x)/g(x))] as x->4

69. ## Sloshing water frequency

Natural frequency of the sloshing water in a swimming pool of a cruiser ship is studied by an experimental set up with a scale of 1/10. If the natural frequency is found 3.5 Hz, then what is the natural frequency for full scale?

70. ## Pre algebra

What is y=5x+5 the anwser and a graph? What is y= -3x+ 6 the anwser and a graph or the coordinates ? What is 3x-6y< -12 with a graph or coordinates

71. ## physics

A 475 gram box is given a push and it then slides up and back down a ramp with a 35.0° incline. The coefficient of friction is 0.30. (a) Determine the rate of deceleration as the box slides up the ramp. (b) Determine the rate of acceleration as the box

72. ## Math

a 16-foot ladder is leaning against a house and is 2 feet away from the foundation of the house. How high up will the ladder reach?

73. ## Social studies

What social or political factors influenced over the creation of public policy

74. ## Math

A killer whale has eaten 75 pounds of fish today. It needs to eat at least 140 pounds of fish each day. A bucket holds 15 pounds of fish. Write and solve an inequality that represents how many more buckets of fish the whale needs to eat?

75. ## Algebra

In the United States, the highest incidence of fraternal twin births occurs among Asian-Americans, then African-Americans, then Caucasians. Of every 16200 births, the total number of fraternal twin births for all three is 778, where there are 195 more for

76. ## Art

I have no idea what my teacher is asking, I know nothing about history and art, please help. The DQ for this week is: This week we are looking at symbolism and given the example of a Treaty signing. Tell me what you think about the entire situation

77. ## Essay

What could you include in a essay about scholarship, character, leadership, citizenship, and service?

78. ## math

an initial population of 865 quail increases at a annual rate of 15%. write an exponential function to model quail population

79. ## social studies

voting in national elections is not only a right but an example of a a) law b) tort c) legislation d) responsibility

80. ## Science

Which of the following must be true about the structures of axons and muscle cells in order for nerve impulses to stimulate muscle contraction? a- Axons and muscle cells must both have structures that make and secrete the same small molecules. b- axons and

81. ## Physics

A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 21.0° below the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. The car rolls from rest down the incline with a

82. ## Math

The length of one leg of a right triangle is 8ft. The length of the hypothenuse is 2feet longer than the other leg. Find the length of the hypothenuse and the other leg. The length of the hypothenuse is _______ ft. The length of the other leg is

83. ## Algebra

When three pumps, A, B, and C, are running together, they can pump 3400 gal per hour. When only A, and B are running, 1900 gal per hour can be pumped. When only A and C are running, 2300 gal per hour can be pumped. What is the pumping capacity of each

84. ## social studies

which is not necessary in order for a bill to become a law ? a) the governor must sign the bill b) a majority vote is needed in the house c) the majority of vote is needed in the senate d) the same version of the bill must be passes

85. ## Chem 2

Vitamin K is involved in normal blood clotting. When 1.56 g of vitamin K is dissolved in 25.0 g of camphor, the freezing point of the solution is lowered by 5.23 °C. . Calculate the molar mass of vitamin K.

86. ## Math

An integer greater than -10 and less than -8

87. ## Physics

A rifle shoots a 4.1g bullet out of it's barrel. The bullet has a muzzle velocity of 975 m/s just as it leaves the barrel. Assuming a constant horizontal acceleration over a distance of 43.0 cm starting from rest, with no friction between the bullet and

88. ## Acct

One of the companies for which you provide accounting services offers office cleaning services and has 8 customers. Cleaning services are provided in the evenings, Sunday through Thursday, at a rate of \$30 per day. Billing is done every Friday. During the

xy'-y=2xlnx

90. ## Math

Jill is the leading scorer on her basketball team, with an average of 13.2 points per game. Which BEST describes Jill's scoring average: rate or ratio?

91. ## math

choose any 3 digit number. How you can add and substract 10 and 100 from that number. Explain your mental strategies for adding or substrating based on placevalue usring precise language and models correctly

92. ## algebra

Solve the equation|2x+10|>26 answers are x16,, x>-18or x

93. ## Chemistry

A compound is known to be a cesium halide, CsX. If 3.00 grams of the salt is dissolved in exactly 100.0 grams of water, the solution freezes at -0.735°C. What is the chemical formula for the salt? i know it would be -0.735= -1.86 * m m= 3g/ X g/mol/kg

94. ## Language Arts ~CHECK MY ANSWERS~

Which verb correctly completes the below sentence? The collection written by several of my favorite authors _____ research in the rain forest. Discuss

95. ## Algebra

i try this one but graphmatica gives me different graph. Please help. Solve for y in terms of x and replace y with the function notation f(x). -2x + 5y = 9

96. ## Chemistry

Given the equation CaO + H2O = Ca(OH)2 if you start with 1.86 moles of CaO, how many moles of Ca(OH)2 will result?

97. ## Algebra

Decide whether the given relation is a function of x. (NO CREDIT WILL BE GIVEN WITHOUT AN EXPLANATION). Give the domain. y=-7/x-16

98. ## civics

In the Battle of _______, a disastrous charge against forces holding Cemetery Ridge led to Confederate defeat.

99. ## help i have no idea!!!!!!

Sam spent \$ 12 on lunch which was fruit, soup and a drink. She also has to pay 7.5% tax and wants to leave a 15% tip. How much will she spend on lunch?

100. ## statistics

A population is normally distributed with mean 30, population SD =10, Sample size 25. What are the mean and variance of the distribution of means, respectively?

101. ## physics

A block weighing 71.5 N rests on a plane inclined at 24.1° to the horizontal. The coefficient of the static and kinetic frictions are 0.26 and 0.13 respectively. What is the minimum magnitude of the force F, parallel to the plane, that will prevent the

Growth potential and opportunity for a small cleaning service business

103. ## math

The unit rate of 7/12 liters in 3/10 kilometers

104. ## Chemistry

Aerosol cans contain com- pressed gases that, when released, help propel the contents out of the can. Why is it important to keep aerosol cans from overheating?

105. ## Life orientation

1.now think what you would really like to do with your life.using a mind map write down at least 3 ideas 2.write the short term,medium term nd the long term goals you need to achieve frome the ideas u have written in your mind map. our goals must

106. ## Pre-Algebra

Can someone PLEASE explain to me what the formula is for finding the surface area of a pyramid? I am on this lesson from my school and I can't quite understand what the formula is. If you can also give an example of a problem, that would be great! :)

107. ## Science

Read an article, and use the article to jump-start your thinking about designing your very own space mission. Think about what you want to explore in the solar system (and why!) and how you might get there. Click on the link below to read the Science

108. ## physics

A 33.3- kg block (m1) is on a horizontal surface, connected to a 5.1- \$kg\$ block (m2) by a massless string. The pulley is massless and frictionless. A force of 220.1 N acts on m1 at an angle of 32.p deg. The coefficient of kinetic friction between m1 and

109. ## Computer Science

The Daily Gazette accepts classified ads in several categories. For most ads, the newspaper charges 10 cents per word for the first 50 words, and 8 cents per word for every word after that. Design Visual Logic Flowchart for a program that accepts data

110. ## Calculus

x dy/dx +2y=1

111. ## science

Why the moon looks different at different times?

112. ## Algebra 1 (Reiny)

A computer modem can transmit 1.5 x 10^6 bytes per second. How many bytes can it transmit in 300 seconds? Write your answer in scientific notation.

113. ## maths

55 010 - 899=

114. ## math

we are trying to help my son with his math and we are not sure how to do the problem and since his school has no books to send home to help us we came here the problem is 1/8x=1/4

115. ## health care law and ethics

I have to wtite a 2 page paper regarding the pros and cons of confidentiality. I am having a hard time find websites to help. Can you recommend any

116. ## English IV

Help Please! Choose the function of the italicized infinitive phrase shown below. (stars indicate italicized infinitive phrase) Meridith is *to be restored as captain.* Answer Options: Function of infinitive: Adjective, Adverb, or Noun. (I chose adverb &

117. ## math

if x+1 is a factor of ax^4+bx^2+c, what is the value of a+b+c?

118. ## Finance

If Mrs. Smith lives to age 88 (she is now retiring at 65 years) what annual APR will result in the 420000 reaching a balance of 1000000 upon her death, if she deposits them in an account that offers monthly compounding?

119. ## math

choose any 3 digit number. How you can add and substract 10 and 100 from that number. Explain your mental strategies for adding or substrating based on placevalue usring precise language and models correctly

120. ## Math

Find the largest pair of consecutive even integers whose sum is less than 85.

121. ## Science

Which of the following body systems does not rely on the autonomic nervous system to simulate involuntary events? A. skeletal system B. digestive system C. circulatory system D. respiratory system A

6w=3

123. ## Chemistry

Calculate the Ph and POH of an aqueous soltuion that is 0.500 M in HCl(aq) and 0.085 M in HBr (aq) at 25 degrees C.

124. ## Chemistry

how do i figure out the valences for elements in the transition elements section in the periodic table of elements (i need it for doing nomenclature) and how do i figure out the valences if i don't have the periodic table of elements examples: Zn Cu Ni Co

The article is at the bottom for this question: Skim the article “Cruise Control” to find the name of the bumper sticker service found in Arlington, Texas. a) 1-866-2TELLMOM b) 800-4-MYTEEN ******** c) Big Mother d) Dad’s Eyes Anne Rekerdres likes to

126. ## programming

=42 Z=~3 {Browse X} % (a) {Browse Z} declare Y=X+5 {Browse Y} % (b) declare X=1234567890 {Browse X}

127. ## computer programming

local X=1 in local X=2 in local X=3 in {Browse X} % (1) end end {Browse X} % (2) end

128. ## help i have no idea!!!!!!

Jack has to take the bus to school and he can't be late again or he will have detention for a week. He leaves 24 m away from the bus stop. Jack woke up late and has 30 minutes to run to the bus stop? How fast must he run to make it to the bus stop on time?

129. ## math

bob needs 161 programs for the school play on thursday.how many boxes of programs will he need, given that each box contains 34

130. ## Chem

What would the Lewis Dot structures for Group 5A (15) and Group 7A (17) look like? Thanks -MC

131. ## Algebra

Hiya. I have 7 expressions that I have been asked to simplify. I worked all of them out, and if you could, I'd like you to check my work for me. Here they are: 1. (x^2 + 3x - 9) + (-4x^2 + 2x - 3) My answer: -4x^4 + 5x - 12 2. (x - 2)(3x + 5) My answer:

132. ## computer programming

{Browse {P 42} == 555} {Browse {Q 42} == 777}

133. ## Geometry

Determine the volume of the three-dimensional figure. When appropriate, round your answer to the nearest hundredth. 13ft 15ft 9ft

134. ## social studies

all of the following are examples of special-purpose governments except a) city councils b) school districts c) port authorities d) fire departments

135. ## Geometry

Right triangle ABC has one leg of length 12 in and a hypotenuse of length 13 inch. A) Determine the length of the other leg B) Determine the perimeter of the triangle. C)Determine the area of the triangle. Must show work as well as answers for each of the

136. ## math

what is the rule for this table 52 44 47 39 40 blank 36 28

137. ## pre cal

a+1 a-1 B+1 _________ = _______ + _________ B B a Solve for A. Note: I set up problems with underlines so they can look like fractions. That's what they are.

138. ## Geometry

Find the length of the side A’B’ for the congruent triangle. C = 28 degrees A = 14 Must show work with answer.

139. ## physics

Two spheres are launched horizontally from a 0.8 m high table. Sphere A is launched with an initial speed of 16 m/s. Sphere B is launched with an initial speed of 8 m/s.

140. ## physics

If the cart weighs 8.7kg and the cart starts at a height of 3m, what is the final velocity of the cart? the starting velocity is 0

141. ## Physics

A 14g bullet is traveling at 306m/s when it strikes a block of wood. If the block of wood exerts a force of 50,000 N opposing the motion of the bullet, how far will the bullet penetrate the block of wood?

142. ## ecology

If you observe no changes in gene frequencies in a population over several generations, can you conclude that the population is not subject to natural selection?

143. ## Grammar

Choose the right form of the verb for the sentence below: At the end of the some passages ___________ trapdoors into the dungeons. a.) are ******* b) is

144. ## Math

Ms Brown had 1/5 students who brought ice cream. 3/4 of them brought candy.How many kids enjoyed the party in all.

145. ## physics

choose the correct answer and why? a car starts from rest and reaches speed of 80 km/h in 16 s the average acceleration of the car is: a\ 0.7 m/s*2 b\1.4 m/s*2 c\5 m/s*2

146. ## Math

You have a room in your home that has a bay window (looks like a trapezoid shape on the floor). You need to figure out the area of the room in order to get carpeting. The rectangular part has dimensions of 24ft by 30ft. If the window has a depth of 2ft.

147. ## Intermediate Algebra

(Thank you for all your help on this site) A basketball team recently scored a total of 95 points on a combination of 2-point field goals, 3-point field goals, and 1-point foul shots. Altogether, the team made 54 baskets and 16 more 2-pointers than foul

148. ## Physics

A 439g block is placed on a spring with a spring constant of 193N/m, compressing it 28cm. What height does the block reach when it is launched?

149. ## calculus

ax+b/cx+d=2 solve for x

How can efficient and effective management be used as an asset for SM JALEEL? 500 words

151. ## phisecs

In a period of 3 h, a man walks 13 km north, turns around and walks 5 km south. Find his average velocity in km/h? Please pay attention to sign. (-) means the average velocity is to the south, (+) means the average velocity is to the North.

152. ## algebra

Solve inequality |2 x+10|26

153. ## algebra

Solve the inequality |2x+10|>26

154. ## chemistry

if I dilute 250 of mL of 2.4 M lithium hydroxide solution so that it's new volume is 750 mL, what is the concentration of the solution?

155. ## math

A department store has a reward program for its frequent customers. For every \$150 spent, a customer earns 5 reward points. Which equation represents the relationship between p, the number of reward points, and a, the totlal amount spent by a customer? A.

156. ## Chemistry

If I leve 750 mL of 3.6 sodium chloride solution uncoverd and 150 mL of the solvent evaporates overnight, what is the new solution concentration?

157. ## tech

Why is drawing important to Technology and Engineering?

158. ## math

Jewel uses 1/8 lb of cheese to make a sandwich in the cafeteria where she works.She purchased a 5 lb block of cheese earlier this week and has already used 1 3/4 lb from the block.Which equation could be used to find n, the number of sandwiches that jewel

A color-blind woman marries a man who is not color-blind. All of their sons are color-blind, but none of their daughters are color-blind. Color-blindness is likely...? Answer choices: 1.the result of having too few chromosomes. 2.the result of having an

160. ## Algebra

Discuss the steps necessary to carry out each activity. Describe briefly what each line looks like in relation to the original given line. Answer these two questions briefly in your own words: What does it mean for one line to be parallel to another? What

161. ## Calculus

lim([-1/(x+2)]+1/2)/x as x->0

162. ## Finance

If Mrs. Smith lives to age 88 (she is now retiring at 65 years) what annual APR will result in the 420000 reaching a balance of 1000000 upon her death, if she deposits them in an account that offers monthly compounding?

163. ## Math (pre calculus)

ax+b/cx+d=2 solve for x

164. ## math

Each video game at an arcade requires 375 tokens.Tom has 2,000 tokens.He said he can play 6 games.Is he correct.

165. ## precal

find the domain and inverse for (f)= 2 + 1/(e^(x/3-5)

166. ## Physical sciences

If you were in the middle of a frozen pond explain how will you get off the pond without making the use of any exernal help

167. ## Chemistry

I have 500 mL of a 6.0 M solution that I want diluted down to 2 M. How many mL of water should I add to the solutiion. " FOR EVERY PROBLEM YOU MUST DRAW A PICUTRE"

168. ## history

If you were one of the new immigrants who arrived in America in the 1880s, it's most likely that you would have been A. Italian and Catholic. B. Irish and Protestant. C. German and Lutheran. D. Swedish and Protestant. I think it's b.

169. ## algebra

Name property real number illustrated by equation 5+(15+6)=(5:+(15)+6

170. ## algebra

Which equivalent form following equation 2x-3y=3

171. ## Math

Solve the equation: |6x - 2| = |3x + 1|

172. ## math

The grade of a road is 6%. What is its angle of elevation?

173. ## Physical Science

What is the hiker's total displacement? part a of the hike: distance:4km east start time: 9:00 am end time: 9:45 am part b: distance:6 km south start time: 9:45 am end time: 10:45 am part c: distance:4 km west start time:10:45 am end time: 11:15 part d:

174. ## Chemistry

Christian Brothers Brandy (80%, 1.7 L) what do I do with this problem it's a percent compostion work sheet

175. ## Algebra

Determine which point, if any, is in the solution half-plane of the two variable inequality. 3x – 2y < 6 Select one: a. (4, 1) b. (-1, -5) c. (1, 0) d. (2, -2

176. ## Algebra

What is the domain of this relation? Is it a function? {(2, 7), (0, 3), (-4, 3)} Select one: a. {7, 3}; yes b. {2, 0, -4}; no c. {7, 3}; no d. {2, 0, -4}; yes

177. ## chemistry

How many enthalpy changes (ÄH’s) would be required to calculate the total enthalpy change when ice at 0.0oC is turned to steam at 100.0oC?

178. ## math

Ricki Cohn Encyclopedia sales Commission rate: 11% Month’s sales: \$2,550 What is the monthly commission?

179. ## Science

Which of these structures relies on the circulatory system to transport the chemical compounds that it makes to the other body structures? a- neuron b- salivary gland c- sweat gland d- pituitary gland I think it is the pituitary gland?

180. ## Astronomy

How can Google Earth be used to access the size of the Earth?

181. ## English

Can someone check if the questions and the sentences are grammatical? Thank you. 1)Can you fly with a Bergonian passport? 2) Why might visitors not be welcome on Seeland? 3) What are the citizens of the Aerican Empire like? 4) What happened to Danny when

182. ## Chemistry

Consider the two equilibria: BaF2=Ba2+ + 2F- Ksp=1.7x10^(-6) F- + H20=HF + OH- Kb=2.9x10^(-11) Determine the solubility of BaF2 at pH=5? What I'm mostly confused about is how to determine if F- is dominant or if you have to take HF into account while doing

183. ## Essay

Would this essay be good? Anything I should add? I still need like 200 more words.. Intro; Hello, I am 12 years old and my name is Navpreet Chauhan. I have been going to Hamilton Southeastern schools for about 7 years. I love helping others out.

184. ## Physics

A ball is thrown upward in two dimensions with an initial speed of 17 Zlugs per mega handle(made up) near the surface of the planet earth. What will be the y component of the balls velocity at the peak of its trajectory?

185. ## Social Studies

Select all that apply. Three ways that unions made their opinions known were through: strikes collective bargaining support of labor legislation blacklisting

186. ## chemisty

In Duluth, Mn the average temperature is -13.10 deg C . How much ethonal glycol, C2H6O2, must be dissolved in 1.00 kg of water to make a radiator fluid that wouldn't freeze until the temp reached -20.00 deg C? would my answer be 666.5 g C2H6O2 ?

187. ## Math

If a varies jointly as b and c, and if a = 100 when b = 5 and c = 25, find a when b = 12 and c = 60

188. ## English

8. Choose the type of punctuation that is missing from the following sentence. Were invited to the movies with Sam and Alex tonight. (1 point) apostrophe semicolon colon hyphen 9. For class tomorrow, I need you to bring the following paint, markers, and

189. ## Chemistry

Assign oxidation numbers to each individual element in the following reaction and identify the oxidizing and reducing agents. 2 Zn S + 3 O2 -> 2 S O2 + 2 Zn O Ox#: Zn=+2 S=-2 O=-2 -> S=+2 O=-2 Zn=+2 O=2 Is that correct? I'm not sure how to identify the

190. ## chemistry

An aqueous solution of HCl has a concentration of .160m and a density of 1.0691 g/mL. What is the concentration of HCl as molarity?

191. ## Pre-Algebra

what is the surface area of a square pyramid if the slant height is 15.2 m and the base is 15.2 m? please explain it to me. this is not homework, it is a practice question and I do not understand how to solve it. Someone PLEASE help!

192. ## bcc

the tail weighed 9 pounds. the hyead weighed as much as the tail plus 1/3 of the body combined, and the body weighed as much as the head and tail combined. what was the total weight of the fish?

193. ## social studies

1. Which activity does Louisiana lieutenant governor perform on a day to day basis ? a) appointing committee chairs b) serving as president of the Senate c) participating in meeting with governor d) acting as governor when the governor is unable to serve

194. ## Chemistry

Write the total and net ionic equations for the following molecular reaction: HgNO3 (aq) + NaCl (aq) -> HgCl (s) + 2 NaNO3 (aq)

195. ## math

Define variable. Show work 3/8 = 7/x+1

196. ## Statistics

An electronic product contains 32 integrated circuits. The probability that any integrated circuit is defective is 0.02, and the integrated circuits are independent. The product operates only if there are no defective integrated circuits. What is the

197. ## math

solve the equation -n+8n=35

198. ## Science

Which of the following must be true about the structures of axons and muscle cells in order for nerve impulses to stimulate muscle contraction? a- Axons and muscle cells must both have structures that make and secrete the same small molecules. b- axons and

199. ## Math

Tressa's closet is 5 feet long, 4 feet wide, and 7 feet high. What is the volume of Tressa's closet. A. 140 feet B. 140 square feet C. 140 cubic feet

200. ## Math

Solve for variable 3/8 = 7/ x+1

201. ## goal setting

Keeping a separate schedule for your studies apart from other activities is: A. a waste of time. B. a good idea. C. too tedious. D. does not matter.

202. ## math

-(6-c)+3(2c-7)=1

203. ## Math

Y-2/24 = -5/4

204. ## Physics

a 2.5 kg ball moving at 7.50 m/s is caught by a 70.0 kg man while the man is standing on ice. how fast will the man / ball combination be moving after the ball is caught by the man?

205. ## 2nd Math

My daughter is learning about comparison problems. I would like to know how to write one and solve it.

206. ## Elgin Elem

From 3:00 pm to 3:45 pm the minute hand of a clock turns how many degrees?

207. ## Enn103f

1. What act did Congress pass in order to relocate Native Americans? a.) Naturalization Act b.) Alien Act c.) Relocation Act d.) Indian Removal Act

209. ## Chemistry

How do you find the [OH-] of a 1x10^-3 M solution of NH4Cl?

210. ## Adding and subtracting fraction

On Monday Roger spent 8 1/10 hours studying. On Tuesday he spent another 1 3/10 hours studying. What is the combined time he spent studying?

211. ## Algebra

Use factoring and the zero-product property to solve the following problems: z(z - 1)(z + 3) = 0 x^2 - x - 10 = 2 4a^ - 11a + 6 = 0 9r^r - 30r + 21 = -4 Please show work. Thank you so much!

212. ## Math

The population of a certain species of bird is limited by the type of habitat required for nesting. The population behaves according the the logistic growth model n(t)=5600/0.5+27.5e^-0.044t Where t is measured in years a) Find the initial bird population

213. ## Chemistry help

A ground state hydrogen atom absorbs a photon of light having a wavelength of 93.77 nm. It then gives off a photon having a wavelength of 94 nm. What is the final state of the hydrogen atom?

214. ## math-

bill spent 7 9/10 hours working on is reading and math homework. if he spent 5 3/6 hours on his reading homework, how much time did he spend on his math homework?

215. ## Math

Solve for the variable X+1/x-2 = 3/6

216. ## math

If \$3500 is invested at an interest rate of 6.25% per year, compounded continuously, find the value of the investment after the given number of years. a) 3 years b) 6 years c) 9 years

217. ## math

If \$8000 is invested in an account for which interest is compounded continuously, find the amount of the investment at the end of 12 years for the following interest rates. a) 2% b) 3% c) 4.5% d) 7%

218. ## English

What was poetry like during the Romantic period? Discuss three characteristics of Romanticism. I'm looking for 1-2 sentences for the first question, and maybe 3-6 for the second question. Thank you so much to anyone who helps. Any help is appreciated. :)

219. ## chemistry

What volume of 1.00 M NaOH would be required to neutralize 77.4 mL of 5.4 M HCl? Round to two places after the decimal point and keep it in mL

220. ## Biology

A typical organism that might occupy a forest in the southwestern United States is a a. Cactus b. grizzly bear c. parrot d. polar bear

221. ## math

an architect built a road 6 5/6 miles long. the next road he built was 3 9/10 miles long. what is the combined length of the two roads?

222. ## History

When was the first contact of the following first nations people of canada: First nations of the Mackenzie and Yukon River Basins Pacific coast first nations Plateau Fist Nations Plains first nations

223. ## History

I have to read an article called "Survivors" and it's about people in the Holocaust. Then I have to write a 1-2 page essay about MY REACTION to the article and NOT a summary. I'm just stuck on how I should start my essay off. Any ideas? Thanks!

224. ## MATH 12

Kalpna opened this portfolio 4 years ago. - A \$8500 fund that earns 5.45%, compounded annually - Monthly deposits of \$200 into an account earning 3%, compounded monthly a) What will be the portfolio's value in 30 years when Kalpna is ready to retire? b)

225. ## English

What would you write in rising action, falling action, and a resolution on a plot diagram? Like things we would write, my story's about a girl who's afraid to go on a ride..

226. ## math

a farmer wishes to fence a field in the form of a right triangle.If one angle of the right triangle is 43.2 degree,and the hypotenuse is 200yard,find the amount of fencing neede.

227. ## Science

Which of the following body systems has a component that stops functioning and leads to diabetes? A) endocrine system B) digestive system C) circulatory system D) nervous system A

228. ## Science

Which of the following can a hospital do to reduce the spread of infectious diseases? A) have patients wash hands very often using antibacterial soap B) keep infected patients confined, and limit visitors C) serve food to patients in paper bowls, and

229. ## math help

Simplify the ratio 18 to 0.6 Is this right 18 ×10 0.6×10 180/6 6/6 30:1

230. ## physics

the distance from the earth to the sun is 1.5 times 10 to the 11 power m ( 93 million miles) and the time for one complete orbit of the earth about the sun is one year. how long would it take a planet located at twice this distance from the sun to complete

231. ## Physics

A train is moving parallel and adjacent to a highway with a constant speed of 27 m/s. Ini- tially a car is 29 m behind the train, traveling in the same direction as the train at 38 m/s and accelerating at 2 m/s2. What is the speed of the car just as it

232. ## Chem 2

When 3.89 g of a nonelectrolyte solute is dissolved in water to make 835 mL of solution at 26 °C, the solution exerts an osmotic pressure of 825 torr. What is the molar concentration of the solution? How many moles of solute are in the solution? What is

233. ## physics 2

a certain 12v storage battery with an internal resistance of 12 ohms delivers 80 A when used to crank a gasoline engine. if the battery mass is 20 kg and it has average specific heat of 0.2 kcal/kg K. what is its rise in temperaure during 1 min of cranking

234. ## Algebra

Here is the question : Determine whether the equation represents direct, inverse, joint, or combined variation. y=2x^3

235. ## scince i try i have no idea

1. Patty wants to go to the beach so need to plan her trip. The beach is 165 km away from her house. She will be on the Parkway most of the time going an average of 30 km/h. What time will she reach the beach if she leaves her house at 6:00am? 2. Jack has

236. ## Froude number

Show that Froude number of a propeller with diameter D and rotational speed n(1/sec) can be given as Fn=n*sqrt(D/g)

237. ## Algebra

Let g(x) = -x2 + 4x + 1. Find g(k)