# Questions Asked onJanuary 16, 2014

1. ## Physics

A mechanic uses a chain and block to lift a 875-kg engine 4.00 m to the top of the garage. The downward force in the chain over the 4.00 m distance is 5.00 x 10^4 N. A) Calculate the work done in raising the motor B) How much useful work was done? C) What

2. ## Math

After Khalil gave Benjamin 3/5 of the rocks in his collection, Benjamin had 70 rocks. If Benjamin had 25 rocks in the beginning, how many rocks did Khalil have in the beginning?

3. ## Tech Ed

Why is it important for schools and organizations to have an Acceptable Use Policy? A.It prohibits people from using the Internet B.It lets people know what is considered to be acceptable use of the Internet C.It makes it mandatory for people to use the

4. ## Tech Ed

How are virtual field trips helpful in education? A.They let students visit locations through video and images that they might never be able to visit in real life. B.They let students pick up objects in real life C.They let students post their field trip

5. ## chemistry

A student finds a rock on the way to school. In the laboratory he determines that the volume of the rock is 29.7 cm3, and the mass in 139.943 g. What is the density of the rock?

6. ## English - help

Which figure of speech os exemplified by lines 149-151 of the excerpt from The Odyssey, Part III? The slid his right hand down the cord and plucked it, / so the taut gut vibrating hummed and sang a swallow's note. A. Simile B. Metaphor C. Personification *

7. ## Math

The market sold 24 heads of lettuce one morning. That afternoon 2/7 of the remaining heads of lettuce were sold. The number of heads left now was 1/2 of ye numbet the market haf at the beginning of yhe day. How many heads of lettuce were there at the

8. ## Math

The LCM of two consecutive numbers is greater than 200 and is a multiple of 7. Name the numbers. How do you figure this out?

9. ## Spanish

I posted this yesterday and didn't get help. Now it is buried on the 3rd page. I am posting again. I hope that is ok. Are these correct? Complete the following statements with the correct form of the verb in parentheses. Some will be conjugated, while

10. ## Physics

A farmer drives a 0.100 kg iron spike with a 2.00 kg sledge hammer. The sledge hammer moves at a constant speed of 3.99 m/s until it comes to rest on the spike after each swing. Assuming all the energy is absorbed by the nail, and ignoring the work done by

11. ## Math

Given the line 4x - 3y = 12, what is the distance between it and the origin I know the answer is 2.4 but how do u do it

12. ## Maths (Tangents and Normals)

find the values of p and q if slope of the tangent to the curve xy + pq + qy = 2(1, 1) is 2

13. ## Language Arts

Okay, here is my outline. Do you have any suggestions? Is it okay? I haven't done many of these before. Eighth grade, btw, if it makes any difference in judging or anything. I: Thesis: Despite the fanciful legends, Blackbeard was truly the fiercest and

14. ## Tech ed

Which of the following rules is most likely to be used in an A.U.P.? A. Communication should be civil and respectful of one another B. Private files can be viewed without permission from the owner C. Proper credit to the source is not necessary if the

15. ## Physics

A 599 g piece of silver at 150 degrees C is submerged in 1000 g of water at 5 degrees C to be cooled. Determine the final temperature of he silver and water given Heat capacity of water= 4.18 x 10^3 j/kg degrees C Heat capacity of silver= 2.49 x 10^2 j/kg

16. ## Math (last question I swear!)

Leroy is 6.5 ft tall and standing on a bridge. He looks down with an angle of depression of 31 degrees towards a boat traveling east. He then turns around and looks down with an angle of depression of 24 degrees towards a boat traveling west. If the boats

17. ## MATH

Complete the pattern 1,1,4,25,______, 749956 A 625 B 1375 C 741 D 841

18. ## Physics

Three objects with masses m1= 36.5 kg m2= 19.2 kg m3= 12.5 kg Are hanging from massless ropes that run over a frictionless pulleys. If the system is released from rest, what is the magnitude of the acceleration in m/s^2 of mass m1? ___________________ O O

19. ## PHYSICS

5 kg cart is at the bottom of a 10 m hill. For the cart to reach the top of the hill, what is the minimum kinetic energy of the cart?

20. ## Math/Physics

The Milky Way Galaxy is 100000 light years across. The Sun is located about 30000 light years from the galactic center and revolves around it with a period of 2e8 years. All the stars inside the sun's orbital radius is to be concentrated at the galactic

21. ## Physics

A 1.25 kg skateboard is coasting along the pavement at a speed of 5.04 m/s when a 0.640 kg cat drops from a tree vertically downward onto the skateboard. What is the speed of the skateboard-cat combination? Answer in units of m/s Your answer must be within

22. ## History8

Which of the following statements about John C. Calhoun is TRUE? a. He supported strong central government. b. He opposed the War of 1812. c. He was a close ally of Daniel Webster. d. He supported slavery. a?

23. ## Math

Kyle is training for a bike race. He rides 5 miles one day, 10 miles the next day, and 15 miles the third day. If Kyle repeats this schedule, what is the total distance he will have ridden after 5 days?

24. ## basic electronics

What would happen if the two pith balls shown in Figure A-1 were held together for a few moments, then released? A. The charge would leak off and the pith balls would hang straight down. B. The pith balls would each receive a negative charge and they would

25. ## chemistry

how many grams of CH4 (methane) must be burned to form 82.6g of H2O? equation: CH4+O2----> CO2+H2O

Which of the following is the BEST interpretation of the Supreme Court decision in McCullough v. Maryland? a.The federal government cannot tax state institutions. b. States have no power to control federal institutions within their borders. c. States can

Please check my answers 1) make c the subject of the formula a=b+cd----------b-a/d=c 2) make t the subject of the formula u=v+2t----------u-v/2=t 3) make n the subject of the formula m=3n+5--------m-5/3=n 4) make z the subject of the formula

28. ## science help asap!!!

Hi, can someone check my answers asap!!? i am on a deadline!! 1. What doe the notation TT mean to geneticists? (1 point) two dominant alleles heterozygous alleles at least one dominant allele one dominant and one recessive allele 2. An organisms genotype

29. ## math

ann uses three 1/4 size strips to model 3/4. She wants to use 1/8 size strips to model an equivalent fraction. how many 1/8 size strips will she need?

30. ## chemistry

how many grams of CH4 (methane) must be burned to form 82.6g of H2O? equation: CH4+O2----> CO2+H2O

31. ## physical sciences

Two forces of 5N and 7N respectively act on an object. (A)when will the resultant of the two vectors be at a maximum? (B)when will the resultant of the two vectors be at a minimum? (C)what are the maximum and minimum resultant of the two forces?

32. ## Maths- yr 5

Tom spent 1/5 of his money and 1/4 of the remainder on a magazine. He had \$25.80 left. How much was the magazine? A \$5.10 B \$6.45 C \$8.60 D \$7.80

33. ## physics

A metal sphere hangs from a string and has 2 kg of mass. The sphere has a charge of +7.1 µC. A uniform electric field is turned on and directed to the right.

34. ## Algebra 1 Word Problem (Reiny)

How am I supposed to solve this? "Sandy makes \$2 profit on every cup of lemonade that she sells and \$1 on every cupcake that she sells. Sandy wants to sell at least 5 cups of lemonade and at least 5 cupcakes per day. She wants to earn at least \$25 per day.

35. ## MATH Fractions

Suppose there are 2 pieces of the cake left over,but you don't know how many pieces were in the whole cake. Explain how you could find the number of pieces in the whole cake if Taylor told you 1/6 of the cake was left. You may show your work in a drawing.

36. ## science !!! help

please answer these 4 questions about since I know nothing about this. 1. A box of cleaning supplies weighs 15n.if the box is lifted a distance of 0.60m,how much work is done? A. 0.040 j B.9 j C.14 j D.25 j 2.to chop wood you apply 50.0n of force to an ax.

37. ## Math

Two boats start out from the same dock traveling at 9 mph and 12 mph respectively. The boats travel in slightly different directions and after 20 minutes are 2 miles apart. What is the angle that is formed by the paths of the two boats? I don't know how to

38. ## MS. SUE - MATH HELP PLEASE

The sum of five times a number and twice a second number is 18, but the difference of three times the first number and seven times the second number is -22. Find the two numbers using the elimination method.

39. ## science

check answers 1. A box of cleaning supplies weighs 15n.if the box is lifted a distance of 0.60m,how much work is done? A. 0.040 j B.9 j C.14 j (I PICK THIS) D.25 j 2.to chop wood you apply 50.0n of force to an ax. The ax applies 600.0n of force to the

The team practices in a pool that is 25 meters long. Sam completes a lap in 22.5 seconds. How long will it take Sam to complete a lap in an Olympic-sized competition pool that is 50 meters long if he swims at the same rate in both pools? (A lap consists of

41. ## Finite Math

A person invests \$2000 annually in an IRA. At the end of 6 years, the amount in the fund is \$14000. What annual nominal compounding rate has this fund earned?

42. ## Chem 1510

A urine sample has a mass of 157 g and a density of 1.030 g/mL. What is the volume of this sample?

43. ## Chem 1510

A urine sample has a mass of 157 g and a density of 1.030 g/mL. What is the volume of this sample?

44. ## chemistry

A sulfuric acid solution containing 571.8gg of H2SO4 per liter of solution has a density of 1.329 g/cm3 Calculate the mole fraction of H2SO4 in this solution.

45. ## Chem 1510

A urine sample has a mass of 157 g and a density of 1.030 g/mL. What is the volume of this sample?

46. ## Algebra 1 (Reiny)

How am I supposed to solve and graph this? "Linda works at a pharmacy for \$15 an hour. She also babysits for \$10 an hour. Linda needs to earn at least \$90 per week, but she does not want to work more than 20 hours per week. Show and describe the number of

47. ## Phy. Ed

What is weight transfer in exercise?

48. ## Math

Can you show me how to work this out? Tom and 7 friends want to share 2 liters of milk equally.

49. ## Math

(100, 18,000) (200, 37,000) (300, 48,000) (400, 66,000) Write an equation for the line that models the data.

how does the use of a golf club make it easier to move a golf ball from its starting position to a hole 250 yards away? A.the golf club reduces the distance over which the input force is applied B.the golf club reduces the input force needed.(I PICKED

51. ## Science

Relationship between heredity and traits

52. ## math

Jessica is swimming in the 500 meter race. It takes her 1 minute and 35 seconds to swim one lap in an Olympic sized pool(it's only 50 meters long). How long will it take her to swim the 500 meter race?

53. ## Math

I have another problem that I don't know how to solve. A car travels along a straight road, heading east for 1 hour, then traveling 30 minutes on another road that leads northeast. If the car had maintained a constant speed of 40 mph, how far is it from

54. ## Physics

A track is mounted on a large wheel that is free to turn with negligible friction about a vertical axis. A toy train of mass m = 0.140 is placed on the track and, with the system initially at rest, the train's electrical power is turned on. The train

55. ## Math

If the height in centimeters of five students are 176,112,160,158 and 158,find the median and mode height for this group of five students.

56. ## Math

The heights off the starting five players on a high school basketball team are 77'',72'',69'',74'',and 77''.what is the median height of these players?

57. ## Physics

A microwave rated at 1000 W heats a 500 g glass of water from 10 degrees C to 55 degrees C in 2 minutes. Determine the efficiency of the energy transformation.

58. ## Physics

An elevator motor provides 45.0 kW of power while lifting a 2000 kg elevator 35 m. If the elevator contains six passengers of the same mass and it takes 20.0 s to accomplish this task, determine the mass of each passenger. Assume the system is 83 %

59. ## Physics

Three objects with masses m1= 36.5 kg m2= 19.2 kg m3= 12.5 kg Are hanging from massless ropes that run over a frictionless pulleys. If the system is released from rest, what is the magnitude of the acceleration in m/s^2 of mass m1? ___________________ O O

A solution is prepared by dissolving 3.44 g of sucrose, C12H22O11, in 118 g of water. a) What is the molality of the resulting solution? b) What is the mole fraction of water in this solution? B) moles of h2o=118g/18(g/mol)=6.5556 mol moles of c12h22O11=

61. ## Biology

Describe how the muscle work in the human body

62. ## Biology

Differentiate the three classifications of muscles

63. ## Studies In The American Novel

1) Pamela is the first American Novel True or false? 2) The early American novels of sentiment dealing with domestic situations True or false? 3) Many of the early novels were written in the form of letters True or false? 4) John Steinbeck's fiction has

64. ## Biology

Discuss the classifications of muscles according to their actions

65. ## Biology

Explain the differences between voluntary and involuntary muscles

66. ## Biology

Explain the relationship among muscles, bones and joints

67. ## math

What dose 2/4 simplify to

68. ## history

what is cold war?

69. ## life science

define the name molecul?

70. ## Math

if a 6 foot man casts an 8 foot shadow what is the height of the building that casts a 72 foot shadow

71. ## Maths (Tangents and Normals)

find the points on the curve [(x^2 )+ (y^2) = 18] at which the tangents are parallel to the line x+y = 3

72. ## microbiology

Show and explain the vertical displacement of a particle, a distance from the origin for a wave travelling from negative direction.

73. ## Science?

I'm doing a science experiment where I have to light an object on fire to do the experiment.. It can't be oil or electrical fire. So I need some objects I can light on fire. Such as a candle. But I can't use this one

74. ## Maths (Tangents and Normals)

curve y = (x^2) - 4x + 5 is tangent perpendiculat to the (line = 2y + x - 7 = 0)

1. Mamá, me quité la ropa vieja y sucia. Ahora llevo la ropa nueva que me compraste. ¡Qué guapo _______ hoy, Julio! A. eres B. eras C. estás D. fuiste I said C 2. Cuando estoy muy cansado, no me gusta usar la escalera. Prefiero usar ________. A. la

76. ## Writing

what is a good opening sentence to a short story? no matter what genre im writing? plz help me. from a girls point of view.

77. ## physics

two forces 5N and 7N act on an object respectively.When will the resultant of the two vectors be at a maximum?

78. ## Biology

Can you give me a website to go on to go over how to know whether you double or half the number of chromosomes given in a scenario? Thank you so much! I have a quiz tomorrow and I need all the help I could get!

79. ## Lang Arts

Need help determining if the word became is used as an action or linking verb in the sentence: Two years later my uncle became a judge. Thanks..

80. ## Earth Science

Analogy: melting is to freezing as partial melting is to _______? a. partial freezing b. magma. c. boiling. d. fractional crystallization.

81. ## Geometry - 8th grade

Well, I am trying to get geometry polygons and angles, but it's really hard to understand what to do. I'm not one to exaggerate and say I'm dying, but I'm pretty desperate for some help. If someone could explain the basics in simple terms or even post a

82. ## Math

A carpenter has several boards of equal length. He cuts 3/5 of each board. After cutting the boards, the carpenter notices that he has enoughpieces left over to make uo the same length as 4 of the original boards. How many boards did the carpenter start

83. ## science

disturbance of an ecosystem by human activity often has negative effects on the number of species, which is a measure of its

84. ## Physics

Bryan tosses a 75.0 g rock into the lake. the rock leaves hus hand at a height of 175 cm above the ground travelling at 19.0 m/s. How high above the ground will the rock travel if it us accidentally bryan tosses a 75.0 g rock into the lake. The rock leaves

85. ## Physics 212

The armature of an ac generator has 100 turns. Each turn is a rectangular loop measuring 8.0 cm by 12 cm. The generator has a sinusoidal voltage output with an amplitude of 24 V. If the magnetic field of the generator is 250 mT, a) With what frequency does

86. ## Physics

Bryan tosses a 75.0 g rock into the lake. The rock leaves hus hand at a height of 175 cm above the ground travelling at 19.0 m/s. How high above the ground will the rock travel if it is accidentally thrown straight up? How high above the water will it

87. ## science

what steps in meiosis are similar to steps of mitosis

88. ## Science - 7th grade

Is radiation damaging to the health of humans? If so, in what way/ways? My answer is: Yes, radiation though helpful in treating certain diseases is damaging to the health of human beings in many ways one of which being that it mutates our DNA and is

89. ## History8

The Supreme Court ruled that the ____________________ was unconstitutional. a.Tariff system b. American System c. slavery d. all of the above d?

90. ## Maths lits,business studies,life science,geography

Hy,i jst want to ask what i could become if i do these subject

91. ## Global studies

On the CIA World Factbook, there is a section for "export earnings." Is this the money earned from exports per year or of all time or something else? I'm quite confused. Thanks!

92. ## math

the Pearson r and Spearman rho corretation coefficients are related. Is this statement correct?

93. ## science/math

A car traveling at the speed of 30.0 m/sec encounters an emergency and comes to a complete stop. how much time will it take for the car to stop if its rate of deceleration is -4.0 m/sec

94. ## Environmental Studies

illustation of Watercycle

95. ## English

When a piece of clothing is SPLICED, what has happened to it? a. it has been completely worn out b. it has been washed and dried c. it has been burned in fire d. it has been cut into strips B? An ORATOR entertains people by a. dancing b. singing c. acting

96. ## physics

Suppore the ceiling in the previous problem is that of an elevator which is going up with an acceleration of 2.0 m/s square. Find the elongations.

97. ## Phyics

A π- ("pi-minus") particle, which has charge -e, is at location ‹ 3.00e10-9, -2.00e10-9, -3.00e10-9› m. What is the electric field at location < -3.00e10-9, 3.00e10-9, 4.00e10-9> m, due to the π- particle?

98. ## Physics

An antiproton (same mass as the proton, charge -e) is at the observation location. What is the force on the antiproton, due to the π-?

99. ## Language Arts~!

* Trying to laugh as quietly as possible,* Lucas snuck out of the kitchen. prepositional phrase gerund phrase participial phrase appositive phrase * Singing loudly in the shower* is what Jessica loves to do every morning. gerund phrase participial phrase

100. ## English

What are some good insight questions for A Separate Peace? Some topics can include: Wroter's craft Setting POV

101. ## Tech Ed

How can simulations be used in education? A.They allow people to touch a real item through the computer B.They provide a realistic experience that students may not get in real life C.They substitute games for learning D.They make games real My answer B?

102. ## science

Tell what you believe would happen if the earth suddenly stopped spinning and you were in the part of the world that had 24 a day.Include such things as how this would affect your sleep, work, school and crime?

103. ## Tech Ed

Which of the following is a benefit that education simulations do not provide? A.They use real objects that can be physically touched B.They allow you to manipulate the objects by turning them around virtually. C.They can use 3-D movement and objects

104. ## SS

What are two important unifying forces in central asia? HELP ME PLEASE!!!

105. ## Test-Taking Strategies

Please check my answers! Please Check if they are wrong please tell me! Thanks! Only 2 questions! 1: Which of the following is a good way to approach answering an essay question and a test? a.) Start writing your answer as soon as you have read the

106. ## trig

simplify (1-cot^2x sec^2x) / ( cot^2x)

107. ## trig

simplify (1-cot^2x sec^2x) / ( cot^2x)

108. ## physical sciences

Two forces of 5n and 7N respectively act on an object. (A)when will the resultant of the two vectors be at a maximum? (B)when will the resultant of the two vectors be at a minimum? (C)when are the maximum and minimum resultantof the two forces?

change the subject of the formula make x the Subject of the formula y = 1/2 x + 1 -2 from both sides y-2 = 1/2 x ÷ by 1/2 from both sides y-2/1/2 = x

110. ## Math ~ Check Answers ~

Please Check My Answers. 1: Solve each inequality. m – 7 < 6 a. m < - 1 b. m > 1 c. m < 13 d. m < -13 2: Solve each inequality. p + 12 > 9 a. p > 21 b. p > 3 c. p > -21 d. p > -3 My Answers: 1: b. m > 1 2: a. p > 21

please check my answers and thanks have a nice day. 2.which of the following ratios is equivalent to 5/20 A.1/4(I PICKED THIS) B.1/5 C.20/100 D.2/5 3.which of the following ratios is ((NOT)) equivalent to 4/8? A.1/2 B.2/4 C.20/45(I PICKED THIS) D.12/24

change the subject of the formula make x the Subject of the formula y = 1/2 x + 1 -1 from both sides y-1=1/2 x ÷ by 1/2 from both sides y-1 over a 1/2 = x

113. ## english

In which of the following sentences is the underlined word an object pronoun? A. You really should apologize to her. B. I would like you to listen to me. C. We returned our books to the library. D. I gave her a gift for her birthday

114. ## Phy. Ed

I have to do two physical activities. The second activity should be one that would improve my performance in the first one. Does anyone have any ideas of activities I can do at home?

115. ## matt

can anyone please answer these?? 1. 2:x and 12:8 A.3 B.4 C.6 2. 5:15 and x:3 A.5 B.3 C.1 3. x:4 and 45:20 A.8 B.9 C.10 4. 21 to x and 7 to 10 A.24 B.30 C.40 5. x to 50 and 16 to 25 A.32 B.34 C.41

116. ## Language arts help!! ms sue.

1. A synonym for factor is _____. (1 point) hinder eliminate influence mimic 2. In this article, many kids are quoted on their opinions about popularity. They talk about what in-crowds are like. One middle school student admits, “Lately, I have been

117. ## science/writing

How are stink bugs harmful to crops?

118. ## MATH Fractions

Taylor baked a cake to serve after dinner. Suppose she cut the cake into 8 equal size pieces and 6 people ate all the pieces. Explain how they could have divided the pieces so that everyone ate the same amount of cake. You make show your work in a drawing.

119. ## math

please answer these please??(studyguide) 6. 6 to 8 and 18 to x A.20 B.22 C.24 7.9/36 and x/4 A.1 B.4 C.9 8.42/22 and 21/x A.12 B.11 C.10 9.x/7 and 5/1 A.25 B.30 C.35 10.20/x and 4/8 A.35 B.40 C.48

120. ## Math ~CHECK MY WORK~

With stars are my answers. Please check them if they are wrong please tell me the right ones. Number 1 (the bottom one) I don't get it so please help me with that one please! 1) You have \$60 in your wallet and want to buy some new CDs. If the CDs are \$11

121. ## Pre-Algebra

You have \$60 in your wallet and want to buy some new CDs. If the CDs are \$11 each, what number of CDs, x, can you buy? Write and solve an inequality. Then explain your answer.

122. ## Math

Find four ratios equivalent to 30%

123. ## Help - MATH

The perimeter of a square is four times the length of one side. What is the graph of this relationship?

124. ## chemistry

The best means of personal protection from radiation for emergency responders is the implementation of three basic principles: time, distance and shielding. Please show your work when answering the following questions: a. Using the inverse square law of

125. ## Physics

A mechanic uses a chain and block to lift a 875-kg engine 4.00 m to the top of the garage. The downward force in the chain over the 4.00 m distance is 5.00 x 10^4 N. How much useful work was done? Thannnkkks :)

126. ## Math ~CHECK MY WORK~

You have \$60 in your wallet and want to buy some new CDs. If the CDs are \$11 each, what number of CDs, x, can you buy? Write and solve an inequality. Then explain your answer. My Answer: 11x