# Questions Asked onSeptember 29, 2014

1. ## physics

Two ice skaters stand facing each other at rest on a frozen pond. They push off against one another and the 48-kg skater acquires a speed of 0.65 m/s. If the other skater acquires a speed of 0.84 m/s, what is her mass?

2. ## physics

One object is at rest and another is moving. The two collide in a one-dimensional, completely inelastic collision. In other words, they stick together and move off with shared velocity. The speed of the object that is moving initially is 25 m/s. The masses

3. ## Math help algebra

You have a gift card for your favorite clothing store for the amount of \$60. You have found a shirt you want to buy that costs \$15. If you don't want to spend more than the amount of the gift card, which of the following inequalities could be used to

4. ## History

Which best describes why the Neolithic Revolution was such an important turning point in history? A- people began to control their physical environment for the first time B- religion emerged as people planted and harvested crops C- metal tools allowed

5. ## World History Answe Check

How does Jacques-Louis David portray Napoleon in the painting Napoleon Crossing the Alps? Why do you think Napoleon wanted artists to produce portraits like this one? A: David portrays Napoleon as being calm and mounted on a fiery steed. I think Napoleon

6. ## intermediate math

angie and payton jog of opposite each other and angie can jog 4.5 mile faster than payton. after 1.5 hours they are 17 miles apart. how much can each person jog

7. ## Math

One table at a bake sale has 75 oatmeal cookies.Another table has 60 lemon cupcakes. Which table allows for more rectangular arrangements when all the cookies and cupcakes are displayed? Explain.

8. ## math

Please help, my mom and I are having a difference of opinion. The question is crackers come in packages of 24. Cheese slices come in packages of 18. You want one cheese slice for each cracker. What is the least number of crackers and cheese slices you can

Conditional statement based on a Venn diagram 2 circles: large circle says quadrilaterals smaller inner circle says squares If a shape is a square then it is a quadrilateral.

10. ## Math

solve: cot(2theta/3)= -sqrt3 Please help, I don't know how to start and how to set it up.

11. ## Math

The coach of a baseball team separates the players into groups for drills. Each group has the same number of players. Is the total number of players on baseball team prime or composite? Explain.

12. ## physics

A 50 kg box hangs from a rope. What is the tension in the rope if a. The box is at rest? b. The box has vy = 5.0 m/s and is slowing down at 5.0 m/s2 ?

If Jaguar decides it will only have dealerships in cities with at least 150,000 people, it is using a ______ variable to segment its market. A) behavioristic B) demographic C) psychographic D) environmental E) geographic Which of the following is true with

14. ## computers

How did this invention or innovation assist in completing work? How was work done previously?  What social, cultural, political, and economic impacts did this event have on society?

15. ## Organic Chemistry

A 0.160 M solution of an enantiomerically pure chiral compound D has an observed rotation of 0.20° in a 1-dm sample container. The molar mass of the compound is 128.0 g/mol. (a) What is the specific rotation of D? (b) What is the observed rotation if this

16. ## Physics

what is the mass density of mercury is 13.6g/cm^3. A cylinder of mercury has a diameter of 1 cm and a height of 76cm. what would the height of the cylinder of the water having a diameter of 1 cm and a mass equal to the mass of the mercury cylinder?

17. ## social studies

one reason why nigerians remain poor,despite their countrys large oil deposits

An ant travels 2.78 cm (West) and then turns and travels 6.25cm (south 40 degrees East). What is the ant's total displacement?

19. ## physics

A 60.0 kg person, running horizontally with a velocity of 3.80 m/s, jumps onto a 12.0 kg sled that is initially at rest. a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move away. b) The sled and

20. ## Phyisics

what is the mass density of mercury is 13.6g/cm^3. A cylinder of mercury has a diameter of 1 cm and a height of 76cm. what would the height of the cylinder of the water having a diameter of 1 cm and a mass equal to the mass of the mercury cylinder?

21. ## physics

C Exercise 3.57 In laboratory situations, a projectile’s range can be used to determine its speed. To see how this is done, suppose a ball rolls off a horizontal table and lands 1m out from the edge of the table. Part A If the tabletop is 70cm above the

22. ## Stats

Most decks of playing cards contain 4 suits - hearts, clubs, diamonds, and spades. If you choose one card from the deck at random, what is the probability that it will be from the suit hearts?

23. ## physics

Bob, who has a mass of 75 kg, can throw a 500 g rock with a speed of 30 m/s. The distance through which his hand moves as he accelerates the rock forward from rest until he releases it is 1.0 m. a. What constant force must Bob exert on the rock to throw it

24. ## Pre-Calculus/Trignometry

Give an example of a function whose domain is [2,infinity).

25. ## math

Forensic specialists can estimate the height of a deceased person from the lengths of the person's bones. These lengths are substituted into mathematical inequalities. For instance, an inequality that relates the height h, in centimeters, of an adult

26. ## chemestry

what is the electron configuration of lithium after making an octet

27. ## Physics

A certain automobile engine delivers 2.24 ✕ 10^4 W (30.0 hp) to its wheels when moving at a constant speed of 31.0 m/s ( 69 mi/h). What is the resistive force acting on the automobile at that speed?

28. ## Chemistry

What is the difference between Citric Acid C6H8O7 and H3C6H5O7? I am seeing both and don't know which is the right one. Is one a solution of citric acid? Thanks

29. ## math squares

how many squares with sides that are 6 inches long are needed to cover a square with a side length of 30 inches without overlapping

30. ## math

I am a multiple of 7 and 3, my units digit is half my tens digit, what number am I?

31. ## English

1. Which one of the following groups of words is a fragment? A. Strolling in the park on a summer afternoon. B. Talking on the phone is her favorite pastime. C. In December, we usually take a skiing trip. D. The Carters enjoy vacationing at the lake. I

32. ## World History Answer Check

1. What event started the French Revolution? A: The fall of the Bastille started the French Revolution. 2. How did Napoleon assume power in France and become emperor? A: As a popular general, Napoleon assumed power in France by taking part in the coup

Are all rectangles whose diagonals are 19 in. long congruent? how can I Justify my answer.

34. ## World History Answer Check

"Society is indeed a contract. Subordinate contracts for objects of mere occasional interest may be dissolved at pleasure--but the state ought not to be considered as nothing better than a partnership agreement in a trade of pepper and coffee...taken up

35. ## algebra

Jeremy has 4 1/2 cups of iced tea. He wants to divide the tea into 3/4 cup servings. use the model to find the number of servings he can make. Please help answer question. thanks would it be 9/2 multiplied by 4/3

36. ## Physics

A train whose speed is 100km/hr rounds a curve whose radius of curvature is 150m what is the acceleration?

37. ## Art

A Stage Set with a Statue and Palace By Unknown artist Q: Because of the use of value change in this image, the artist A. Was able to make the image have no contrast. B. Was able to emphasize only one minute are of the drawing. C. Was able to create the

38. ## Math

Everyday Ms. Twinkle walks around a park near her house. The park is in the shape of rectangle 2 mi long and 1 3/10 mi wide. How far does she walk?

39. ## Algebra

The largest bubble chamber in the world is 15 ft. in diameter and contains 7259 gal of liquid hydrogen at a temperature of -247 degrees Celsius. If the temperature is dropped by 11 degree Celsius per hour for 2 consecutive hours, what is the new

40. ## physics

If you stand on a pair of bathroom scales, explain how the readings change as you shift your weight gradually from side to side. what rule governs the readings on the scale?

41. ## math

write a ratio in 3 ways, comparing the first quantity to the second. A week has 5 school days and 2 weekends. Second question about 1 in 4 people swims at least 6 times each year.

42. ## World History (Please, help me!)

How did the principle of the French Revolution spread throughout Europe?

43. ## chemistry

A mixture of 3.00 g of silver and copper metals was dissolved in excess nitric acid. Resulting salts, silver(I) nitrate and copper(II) nitrate, were isolated and dissolved in enough water to make 0.100 L of a solution with a total concentration of the

44. ## math

The greatest recorded temperature ranges in the world are around the "cold pole" in Siberia. Temperatures in Verkhoyansk have varied from -94 degrees Fahrenheit to 98 degrees Fahrenheit. What is the difference between the high and low temperatures in

45. ## math

A tennis ball is dropped from a height of 7 ft. If the ball rebounds 2/3 of its height on each bounce, how far will the ball travel before coming to rest? (Find the total distance that the ball will travel before it stops bouncing.) i need help i don't

Which choice best describes the underlined words in this sentence? There goes that antique fire truck from the car show. A- simple subject B- complete subject C- compound subject D- none of the above I think B. Which choice best describes the underlined

47. ## precal

a pendulum swings back and forth from a string. when it is lying motionless it is y = 6 ft. from a nearby wall. when the pendulum is furthest from the wall, it is 9 ft. it takes 20 seconds to complete one cycle. suppose you start timing the pendulum when

48. ## algbrea

Francine and Cheryl received equal scores on a test made up of multiple choice questions and an essay. Francine got 34 multiple choice questions correct and received 14 points for her essay. Cheryl got 30 multiple choice questions correct and received 22

49. ## Math

the temperature dropped 18 degrees F between 6 am and 6 pm. during the night the temperature fell another 8 degree F. at 6 am the temperature started rising. It rose 1degree F the first hour, 2 degree F the second hour, and 4 degree the third hour. The

50. ## Social Studies Help

1.) how were the farms of new England colonies similar to the farms of the up country? a.)They grew rice **** b.)they were plantations c.)they had short growing seasons d.)they were small substance farms 2.)rice grew successfully in south Carolina because

51. ## Physics

A police car is traveling at a velocity of 20.0 m/s due north, when a car zooms by at a constant velocity of 44.0 m/s due north. After a reaction time 0.700 s the policeman begins to pursue the speeder with an acceleration of 6.00 m/s^2. Including the

52. ## Algebra

An emergency plumber chargers \$65 as a call-out fee plus an additional \$75 per hour. He arrives at a house at 9:30 and works to repair a water tank. If the total repair bill is \$196.25, at what time was the repair completed? In order to solve this problem,

53. ## math

How do you write 72.053 in word form

54. ## algebra

a ribbon is 3 2/3 yards long. Mae needs to cut the ribbon into pieces that are 2/3 yard long. use the model to find the number of pieces she can cut. Please help answer. thanks.

55. ## History

The Congress of Vienna in 1815: A. was attended by representatives of France, Britain, Italy and the United States. B. operated in accord with the principles of liberalism. C. agreed to meet periodically to take steps to maintain Europe’s peace and

56. ## physics

A 96.5 kg ice hockey player hits a 0.150 kg puck, giving the puck a velocity of 45.5 m/s. If both are initially at rest and if the ice is friction less, how far does the player recoil in the time it takes the puck to reach the goal 18.0 m away?

57. ## Human and social biology

Briefly outline how four important social problems may be reduced by the knowledge of biology

1. Which word group is a complete sentence? A- The exciting end of the baseball game. B- She did not understand what happened. C- Two energetic women walking in the park. D- Started his homework late Saturday night. My guess is B.

59. ## physics

A chunk of Martian rock falls off of a cliff and drops 47.7 m in 5.00 s. What is the acceleration due to gravity on the surface of Mars?

60. ## chemistry

A 36.1 mL sample of oxygen gas contains 0.529 mol of oxygen. If enough oxygen is added to the sample to obtain a volume of 50.5 mL, what must the final mass of the sample be? (The pressure and temperature is constant.)

61. ## physics

1) The angle of elevation to the bottom of a transmission tower on a hill from an observer standing 1.8 km away from the base of the hill is 5 degrees. The angle of elevation to the top of the tower from the tower is 6.8 degrees. If the distance from the

62. ## Math (Trig)

Rewrite the following expression in terms of tan3x: (sin2x + sin4x)/(cos2x + cos4x)

63. ## math

A car dealer will sell you a used car for \$6,298 with \$798 down and payments of \$165.51 per month for 48 months. i found the total amount paid which is 8742.48 and interest paid is 2444.48 how do i find the interest rate?

64. ## Science

... During dry weather, does the water level in a small pond drop because of runoff? If not then what is it?

65. ## Math

Wanda meets her friend every 8 days. She meets her friend Audrey every 6 days. One day she meets both Jackie and Audrey. In how many days will she next meet Jackie and Audrey?

66. ## Chemistry II

Dr.Bob222 please help given the following table of thermodynamic data substance delta HofF S PCl3 -288.07 kJ/mol 311.7 J/mol-k PCl3 -319.6 kJ/mol 217 J/mol- k determine the normal boiling point (C)of PCl3

67. ## math

Imelda, susan and clara are driving go carts around a track. Imelda takes 14 min, susan takes 9 min and clara takes 10 min to drive one lap. suppose all three of them start together at a point and drive at their same speeds. after how many minutes would

68. ## computers

How did this invention or innovation assist in completing work? How was work done previously?  What social, cultural, political, and economic impacts did this event have on society?

69. ## physics

A truck on a straight road starts from rest, accelerating at 2.00 m/s2 until it reaches a speed of 11.0 m/s. Then the truck travels for 65.0 s at constant speed until the brakes are applied, stopping the truck in a uniform manner in an additional 5.00 s.

70. ## Physics

A washing machine drum has a diameter of 46 cm and spins at 400 revolutions per minute. Find the centripetal acceleration at the drum's surface. Give your answer in m/s

71. ## math

A Bank teller has \$16.50 in quarters and dimes. There are 25 fewer quarters than dimes. How many quarters does he have?

72. ## History- Help Miss Sue

All of the following are correct about Russia in the nineteenth and early twentieth century EXCEPT: A. Alexander II, a reformer, was assassinated. B. Alexander III and Nicholas II continued Alexander II’s reforms. C. Russia lost a war to Japan. D. Russia

73. ## Chemistry

Al and Fe react with HCl to produce a chloride salt and hydrogen gas. A .1924g sample of a mixture of Al and Fe is treated with excess HCl solution. A volume of 159mL h2 gas is collected over water at 19C and 841 torr. What is the mass percent by mass of

74. ## World History Answer Check

1. What event started the French Revolution? A: The fall of the Bastille started the French Revolution. 2. How did Napoleon assume power in France and become emperor? A: As a popular general, Napoleon assumed power in France by taking part in the coup

75. ## History

The new, industrial middle class was: A. actually not new at all, but was a propaganda term created by Napoleon III. B. the term used to describe the European proletariat after 1810. C. composed of people who were often the children of industrial workers

76. ## Language and Composition

Indulge is to deny as flatter is to A. insult B. blush C. compliment D. relax D? Wild guess I don't get it.

77. ## Physics

The electrons that produce the picture in a TV set are accelerated by a very large electric force as they pass through a small region in the neck of the picture tube. This region is 1 cm in length, and the electrons enter with a speed of 1 × 105 m/s and

78. ## Physics

A lorry of mass 12,000kg traveling at a velocity of 15 m/s crashes into the back of a moving car of mass 1500kg, traveling at a velocity of 5 m/s. The vehicles move together after the impact. Calculate their velocity.

79. ## Material Behavior

The energy-separation curve for two atoms, a distance, r, apart is: U(r)=−A/r^m+B/r^n Derive and expression for the stiffness of the bond at the equilibrium spacing, in terms of A, B, m, n, and r0. S=dF/dr at r=r0:

80. ## Physics

rom the top of a cliff, a person uses a slingshot to fire a pebble straight downward, which is the negative direction. The initial speed of the pebble is 7.56 m/s. (a) What is the acceleration (magnitude and direction) of the pebble during the downward

81. ## World History (Please, help me!)

I'm struggling to answer these questions. I don't know their answers. "Society is indeed a contract. Subordinate contracts for objects of mere occasional interest may be dissolved at pleasure--but the state ought not to be considered as nothing better than

82. ## Physics

A 103 kg sprinter wishes to accelerate from rest to a speed of 13.2 m/s in a distance of 19.3 m. What coefficient of static friction is required between the runners shoes and the track?

83. ## physics

A small coin, initially at rest, begins falling. If the clock starts when the coin begins to fall, what is the magnitude of the coin\'s displacement between t1 = 0.1749 s and t2 = 0.437 s?

84. ## English

Ms.Sue can you check my answers,I just want to make sure they were right.

85. ## History

What characteristics distinguished the "civilized" tribes from the "wild" tribes?

86. ## History

Prussia’s victory over Austria in 1866 allowed the Italians to take over __________ and the withdrawal of French troops during the Franco-Prussian War of 1870 allowed the Italians to take over __________. A. Naples; Florence B. Venetia; Rome C. Rome;

87. ## History- Help Miss Sue

Nationalism: A. was a potential threat to the existing political order. B. had major support only in western, Atlantic coast Europe until the late 1860s. C. was firmly opposed by Bismarck and Cavour. D. won speedy acceptance across Europe because every

88. ## DISCRETE MATH

How many different strings can be made from the letters in STATISTICS, using all the letters

89. ## Physics

A renegade watermelon starts at x = 0 m and rolls at a constant velocity to x = −3.0 m at time t = 5.0 seconds. Then, it bumps into a wall and stops. Draw its position versus time graph from t = 0 s to t = 10 s.

90. ## World History Answer Check

Consider Napoleon's impact on history had he defeated Wellington. Explain why this victory might have marshaled enough support for Napoleon to have resumed his rule as emperor. A: If Napoleon defeated Wellington, he would have made a greater impact on

91. ## physics

A man holding a rock sits on a sled that is sliding across a frozen lake (negligible friction) with a speed of 0.540 m/s. The total mass of the sled, man, and rock is 93.5 kg. The mass of the rock is 0.300 kg and the man can throw it with a speed of 15.0

92. ## History- Help Miss Sue

The Congress of Vienna in 1815: A. was attended by representatives of France, Britain, Italy and the United States. B. operated in accord with the principles of liberalism. C. agreed to meet periodically to take steps to maintain Europe’s peace and

93. ## algebra

the area of a rectangular picture frame is 30 1/3 square inches. the length of the frame is 6 1/2 inches.please help find the width of the frame. thanks

94. ## algebra

zoey made 5 1/2 cups of trail mix for a camping trip. she wants to divide the trail mix into 3/4 servings. please help answer question A and N A. ten people are going on the camping trip. can Zoey make enough 3/4 cup servings so that each person on the

95. ## geometry

Maurice drew an angle larger than a right triangle. Then he made it into a triangle by drawing a third side. What kind of Triangle did maurice draw?

96. ## Math

the temperature dropped 18 degrees F between 6 am and 6 pm. during the night the temperature fell another 8 degree F. at 6 am the temperature started rising. It rose 1degree F the first hour, 2 degree F the second hour, and 4 degree the third hour. The

97. ## History

How did the settlement of whites and their influence eventually affect the economy of the Five Tribes? A.Tribes learned new herding techniques and adopted US currency. B.Tribes traded in their villages rather than using trading posts. C.Tribes began to use

98. ## science

an astronaut has a mass of 60 kilograms on earth. what would her mass be on mars? what would her weight be on mars? the strength of gravity o mars is 3.7 m/s^2.... am having a slow moment, please help

99. ## Art

Landscape with Classic Ruins and Figures by Marco Ricci and Sebastiano Ricci Q: To evaluate the success of this image, you would do all of the following EXCEPT A. Describe the scene presented B. Analyze the color schemes C. Interpret the meaning of the

100. ## statistics

on a typical summers day a boat company hires rowing boats at a rate of 9 per hour. a)find the probability of hiring out at least 6 boats in a randomly selected 30 minute period. b) the company has 8 boats to hire and decides to hire them out for 20 minute

101. ## Math

It took 6.5 gallons of gas to fill the tank of the family car. If the tank is .25 full when they arrived at the gas station, how much gas does the tank hold.

102. ## fnjsal

How many people watch anime in meh school

103. ## Physics

A 20,000 kg vehicle is running at 80km/hr in a rotonda with a radius of curvature 25m compute for the centripetal force

104. ## Ms. Sue

The question on my history test: Which is a characteristic of civilization? A- bronze tools and weapons B- an army C- art and literature D- government The answer is D- government We both got it right! I got a 100%/100% on my test! Thank you!! :)

105. ## Algerbra

i really need help! 6z=4(1/2z-8) I really don't know what to do

106. ## science

So the question is write down three examples of science in your everyday life. This was my answer: sound- compression wave, Baked goods- chemical reaction, Looking at mountains or ocean- earth science Please check my answer and see if this is good thank

107. ## Chemistry - Titrations

What volume (mL) of 0.2650 N H3PO4 is required to neutralize: a) 35.25 mL of 0.2300 M KOH b) 19.14 mL of 0.2300 M NH4OH Unfortunately, the teacher didn't get the opportunity to teach us titrations in class today, but this problem (and more) are still due

Which word group is a sentence fragment? A- Waiting patiently in the lobby was a small boy. B- Construction paper, scissors, and paintbrushes in a pile on the table. C- On the front door was pinned a note. D- Stop! My guess is B.

109. ## Pre-Calculus/Trigonometry

Solve the following system of equations algebraically. Verify your solution by using matrices. 3x-y=0 5x+2y=22

110. ## math

how can you simplify a ratio

111. ## algebra

Dao has 2 3/8 pounds of hamburger meat. he is making 1/4 pound hamburgers. does Dao have enough meat to make 10 hamburgers? explain. thanks

Which choice best describes the underlined words in this sentence? Should you have been walking the dog without a leash? Underlined is: Should _____ have been walking it does not include the word "you" so I just did an under score to represent that. A-

113. ## physics

A 302 kg motorcycle is accelerating up along a ramp that is inclined 24° above the horizontal. The propulsion force pushing the motorcycle up the ramp is 2860 N, and the air resistance produces a force of 235 N that opposes the motion. Find the magnitude

114. ## physics

In 10 seconds a car accelerates 3m/s^2 to 90m/s. How fast was the car going before it accelerated?

115. ## History

Industrial development in the United States before 1870: A. made no real impression on either the society or the economy. B. included an efficient transportation network. C. had Asian immigrants making up over half of the factory labor until the 1850s. D.

116. ## chemistry

The density of silver is 1.050×104 kg/m3. What is the mass of a rectangular ingot of silver with dimensions 1.00 cm × 4.00 cm × 0.780 dm? How do I get started? I really do not understand.

117. ## Algebra

If a researcher wanted to know the mean weight (the mean is the sum of all the measurements divided by the number of measurements) of women in the U.S., the weight of every woman would have to be measured and then the mean weight calculated, an impossible

118. ## physics

A certain muon detector counts 600 muouns/h at an altitude of 1900m and 380/h at sea level. Given that the muon half-life at rest is 1.5×(10^-6)s, determine the speed of the muons relative to Earth, assuming they all have the same speed.

119. ## Math

Write a two column proof. Given: 7y = 8x - 14; y = 6 Prove: x = 7

120. ## Physics

Nellie weighs 300 N and stands on a pair of bathroom scales. If she leans so that one-third of her weight is on the left scale, what is her reading on each scale?

121. ## math

Kristen and Christopher were playing a board game. They used a spinner with 4 spaces labeled 1, 2, 3, and 4. Each player was allowed 3 consecutive spins. They could move pieces on a board game only if the total of the 3 spins equaled 5. How many possible

Which word group is a complete sentence? A- Almost all the swimmers following the rules. B- Never had any interesting activities. C- After Chris finished chemistry experiment. D- Only two of the chairs matched the table. My guess is D.

123. ## algebra

What is the answer for 4 (1-3n)-14=4 (2n+3)-9n

124. ## Histoty- Help Miss Sue

All of the following are correct about nineteenth century Liberalism EXCEPT: A. having economic and political components. B. supporting the idea of civil rights. C. wanting to limit governmental power. D. opposing limiting governmental power. d

125. ## physics

A car traveling in a straight line has a velocity of 3.19 m/s at some instant. After 5.4 s, its velocity is 12 m/s. What is its average acceleration in this time interval?

126. ## Math

Jeremy bought a plank of wood 2 2/3 yards long. He divided the plank into 3 equal pieces. How long is each of Jeremy's planks?

127. ## math

which is the number that has a tens digit that is 8 more than the units digit. but zero is not one of the digits

128. ## English

Ms.Sue I just posted new questions on page 2,could you please check them for me.

129. ## statistics

It is a known fact that accidents happen more often driving the car rather than flying. Jim drives 180 days and flies 120 times per year. If for every 110 days driving you get into one accident and for every 10000 flying you get into 3 accidents, what is

130. ## math

find two numbers the exact answer is between 3*567

ClO2 is sometimes used as a chlorinating agent for water treatment. Cl2 + 4 NaClO -> 4 NaCl + 2 ClO2 In an experiment, 1L Cl2 measured at 10C and 4.66atm is dissolved in .75L of 2.00M NaClO. If 25.9g of pure ClO2 is obtained, then what is the percent yeild

132. ## Science

May you please tell me if these are true or false, if they are false then can I have the true statement, thank you In the water cycle, water returns to Earth as (condensation) usually in the form of rain or snow During dry weather, the water level in a

133. ## physics

A 42 kg girl is bouncing on a trampoline. During a certain interval after she leaves the surface of the trampoline, her kinetic energy decreases to 250 J from 520 J. How high does she rise during this interval?

134. ## math

Mr snider is tiling a floor .The floor is 16 tiles long and 5 toles wide.How many tiles are in the border section?

135. ## physics

how to determine the amount of water in the container when you are given a 200g piece of aluminium at 90 degrees celcius is placed in a 100g glass container which holds an unknown amount of water at 20 degrees celcius .if the equilibrium temperature is

136. ## physics

what is the centripetal force of the train in the previous problem whose speed is 27.8 m/s rounding a curve whose radius of curvature is 150m if the train mass is 8000 kg

137. ## World History (Please, help me!)

Consider Napoleon's impact on history had he defeated Wellington. Explain why this victory might have marshaled enough support for Napoleon to have resumed his rule as emperor. A: ?

138. ## Math

What is the volume of a rectangular prism if the base area is 56 inches, height 6 inches?

139. ## algebra 2

graph each system of equations and describe it as consistent and independent, consistent and depedneent, or inconsistent 37. y=3x-4 y=6x-8 38. y=2x-1 y=2x+6 39. 2x+5y=10 -4x-10y=20

140. ## algebra

Zoey made 5 1/2 cups of trail mix for a camping trip. she wants to divide the trail mix into 3/4 cup servings. A. If zoey decides to use the 3/4 cup servings, how much more trail mix will she need? explain

141. ## chemistry

Identify each of the ff reactions and say wha type of diving force for this.(a) chlorine+sodium iodin=2sodium chloride+iodin

142. ## History, Urgent

What was Andrew Jackson's role in the removal of American Indian tribes to the west?

143. ## social studies

how did social studies exist in nigerian schools as a subject

144. ## science

What will happen to the mass of the wood if you put them together without cutting them.

145. ## History

Nationalism: A. was a potential threat to the existing political order. B. had major support only in western, Atlantic coast Europe until the late 1860s. C. was firmly opposed by Bismarck and Cavour. D. won speedy acceptance across Europe because every

146. ## algebra 2

graph each system of equations and describe it as consistent and independent, consistent and dependent, or inconsistent 10. y+4x=12 3y=8-12x 11. -2x-3y=9 4x+6y=-18 12. 9x-2y=11 5x+4y=13

147. ## German

Hello, I require help with my German Next week I'll be starting taking additional lessons to help me with my coursework, but for now, I would be immensly grateful for your help. I've managed to do most of my tasks by myself, however there are some that are

148. ## engineering science

Two objects, with masses 10kg and 6kg respectively, move in the same direction in the same straight line at velocities 8m/s and 4m/s repectively, when they collide. The objects remain in contact with each other after collision. Calculate the common

149. ## Calculus

Solve the following e^-x (square root((3e^2x) - 5/4)) = e^x

150. ## English

Would it make sense to say someone has a "benevolent mindset" or a "benevolent mentality"?

151. ## Organic

Which layer is likely to be on the bottom in each case? a. Sodium chloride layer or a layer containing a high-density organic compound dissolved in methylene chloride (d  1.4 g/mL) b. Sodium chloride layer or a layer containing a low-density organic

152. ## History

Britain’s Factory Act of 1833: A. reduced the number of women working in factories. B. reduced the number of children working in factories. C. established an eight hour work day for all workers. D. placed a high tariff on imports in order to increase the

153. ## Physics

a container weighing a 1.20 x 10^4 N sits on a hydraulic press piston with can area of 0.80m^2. Compressed ir exerts a force of on the second piston which has an area of 0.30m^2 How large must this force be to support the car

154. ## statistics

the average yearly utility costs on Middleton is \$1722 with stdev of 146. assume that the utility costs follow a normal distribution. 1) What would the utility costs have to be so that only 7% of houses in Middleton have utility costs greater than this

155. ## History- Help Miss Sue

Prussia’s victory over Austria in 1866 allowed the Italians to take over __________ and the withdrawal of French troops during the Franco-Prussian War of 1870 allowed the Italians to take over __________. A. Naples; Florence B. Venetia; Rome C. Rome;

156. ## Math

Pat and Kelly went hiking in the mountains. They started at 9,100 ft. They climbed 1,200 ft the first day, descended 900 ft the second day, and climbed 1,000 ft the third day. On the fourth day they descended 800 ft. What was the average altitude at which

157. ## horizon elementry

A rattlesnake can strike at a speed of 8m/s. Of a snake strike you in .5 sec, ay what rate did it accelerate to strike you?

158. ## math

Represent 30 degree increase in temperature as an integer. Would that be +30?

159. ## algebra

Solve for x. 1+x divided by 1+x^2=2 divided by 5

160. ## English

What does it mean to be a professional? and what does it mean to be in a profession?

161. ## Math

Jada has 1/4 of a pizza left. She is going to split the leftovers equally with 6 of her friends. What fraction of the whole pizza will each piece be?

162. ## Math

Pat purchases 2.5 pounds of jelly beans at \$.89 per pound. How much did Pat pay for his jelly beans in all?

163. ## physics

how to determine the amount of water in the container when you are given a 200g piece of aluminium at 90 degrees celcius is placed in a 100g glass container which holds an unknown amount of water at 20 degrees celcius .if the equilibrium temperature is

164. ## Human and social biology

define the terms (a) Conservation and (b) Pollution and explain one activity of humans associated with each

165. ## Physics

joel is running down the newly waxed school corridor and tries to slide across the floor in this rubber shoes. The thick 1.5-cm thick rubber soles each have a cross-sectional area of 0.015m^2 and are sheared with a force of 10,000 N

166. ## Numerical Analysis

Find the parabolically terminated cubic spline through the data ppoints (0,1),(1,1)(2,1)(3,1),(4,1). Is this spline also not-a-Knot? natural?

167. ## physics 12

a boeing 747 can travel up to 254m/s. The pilot must travel from vancouver to calgary, which is located 3.0x10^2km [N] and 7.0x10^2km [E]. there is strong wind blowing at 50.0m/s [SE].

168. ## Statistics

James has \$78. He nees to buy some cds and tapes. He can buy 4 cds and 3 tapes and has \$3 left or buy 3 cds and 5 tapes and has \$13 left. Using system equation, find the cost of each.

169. ## English

discuss the current state of the field of early childhood care and education from your own perspective. In this field, what does it mean to be a professional and what does it mean to be in a profession? Include a component of political analysis in your

170. ## Trigonometry

A car traveling at a constant rate due east passes an interstate exit that is 1.0 mile from a gas station. The gas station is S50°E of the exit. After the car has traveled for 2.0 minutes, its bearing to the gas station is S55°W. How fast is the car

171. ## english

verbs plural or singlar

172. ## Physics

Calculate the megnatic force on static electron of megnatic field of 1.4 Tesla????

173. ## Calculus

r=log(cos^2(4theta)) what is the derivative of this?

174. ## Algebra II

4. The radius of a cylinder is 3x – 2 cm. The height of the cylinder is x + 3 cm. What is the surface area of the cylinder? 2spi (3x2 + 10x – 8) 2 pi (12x2 + 7x-2) 2 pi (12x2 -2x +13) 2 pi (12x2 -5x -2)* my answer??

175. ## CHM

what is meant by the term "free calcium"?

176. ## Western civilization

What development marked the start of the Archaic Age in Greece?

177. ## Math

Solve the following e^-x (square root((3e^2x) - 5/4)) = e^x

178. ## Algebra

I'm not getting it. I've tried to re-read the notes but I'm still confused. Label each statement as "true" or "false". If "false" correct the underlined portion. 1) If *|n+9| _ 4 and n +9_60 then *-3

179. ## Chemistry

A solution contains 5.6g of solute in 16 cm cubed of water. When the solution is cooled, crystals begin to appear at 11 degrees celsius. What is the solubility of the solute at 11 degrees celsius?

180. ## Career Exploration

Faith likes to cook at home and buys lots of specialized pans and gadgets for her kitchen. Faith's cooking equipment falls into which budget category? (1 point) • food • entertainment MY ANSWER• health care • other

181. ## Math

Factor Completely 8y^5+12y^3+4y

182. ## Human and social biology

how does an infection disease differ from a deficiency disease?

183. ## World History Answer Check

1. Who was Anne-Louise-Germaine de Staël, and why was she significant? A: Anne-Louise-Germaine de Staël was a prominent writer of the revolutionary and Napolenic eras in France. She was significant because she established a salon for the powerful that

184. ## History

All of the following are correct about nineteenth century Liberalism EXCEPT: A. having economic and political components. B. supporting the idea of civil rights. C. wanting to limit governmental power. D. opposing limiting governmental power. d

185. ## SBGG

How many revolutions a second are made by each wheel of an electronic toy car travelling 132 metres per minute , if the diameter of each wheel is 7 cm

Which choice best describes the underlined words in this sentence? I am looking forward to the trip to the museum next week. A- simple predicate B- complete predicate C- compound predicate D- none of the above I think B. underlined is: am looking forward

What does it mean to solve a quadratic function by graphing?

188. ## Algebra

Please Help Me with this problem:Ozark Furniture Company can obtain at most 3000 board feet of maple lumber for making its classic and modern maple rocking chairs. A classic maple rocker requires 15 board feet of maple, and a modern rocker requires 12

189. ## Math

Explain how to find the greatest common factor of three numbers. Grade 6 GO MATH BOOK

190. ## Math

How to add fractions Adding fractions is simple look at the example below. 4 2 - + - = 4+2=6 and you keep the 8 8 denominator the same so the answer is 6 - 8

191. ## US History

Why was 1776 a turning point in American history?

192. ## Physics

a) An electron in an atom has a speed of 2.2 × 10^6 m/s and orbits the nucleus at a distance of 5 × 10^-11m. What is its centripetal acceleration? (already solved) 9.68x 10^22 m/s^2 b) A neutron star of radius 17 km is found to rotate at 5 revolutions

193. ## English

Every insect's behavior is instinctive; it knows how to act and what to do from the moment it is born. Is insect's singular or plural and why?

194. ## math problem solving

arthur wants to model 758 using the fewest blocks possible. how many tens should he use? A. 8 B.5 C.7 D.4

195. ## Algebra

Rebecca has left three bags containing the same number of marbles, plus two marbles left over. She places them on one side of a balance. Chris, who has more marbles than Rebecca, adds marbles to the other side of the balance. He finds that with 29 marbles,

196. ## marketing and research.

I am interested in assessing the influence of children on a family's purchasing decision at a grocery store. How would you investigate this problem by communication and observation?

i can't get how to find out the collocations ( verb + adjective ) on a newspapers online. thanks

198. ## AP Calc B/C

the integration of (e^x)/(1-E^2x)^3/2 with respect to x We are currently doing integration by tables, but I can't find the formula that I should use!

In an ideal gas, if only one molecule in a thousand has enough energy to react, how can all molecules in a reactor be consumed? My answer: when the one molecule reacts, it causes the other molecules to gain energy. Is this right? I'm still confused on the

200. ## njeyeza

4. Two masses 2kg and 3kg that are attached to each other slide together as a unit, and then break apart (as shown below). If the final velocity for m2 is 10m/s after breaking,

201. ## Zoology

Why are living organism classified?

202. ## Math

is -3.444,-3.4222,-|3.4|,-3 3/7 from least to greatest correct? if not plz esplane

203. ## MATH HELP

arthur wants to model 758 using the fewest blocks possible. how many tens should he use? A. 8 B.5 C.7 D.4

204. ## Precalculus

So for our review, our teacher posted the answers to the review online. I do the problem and check my work with the review, but I am questioning number 8. Here is the problem with the answer: prntscr.c0m/4rnpcn How does it equal 16? I am so clueless! G * F

205. ## computers

Is there a way to find out some information about an e-mail address without actually sending a message? As in, is it still in active use? Or, who is the person using it?

Classify properties of operations. 1. (-4-3n) * -8 Ans: distributive 2. (6+4)+8=6+(4+8) Ans: associative 3. (1-7n) * 5 Ans: distributive

207. ## CHM

what other compounds may be present at the trace level that would interfere with this titration? (EDTA)

208. ## Algebra

Have three problems and I'm really confused how to solve/simplify 1. 4/3+square root of 5 2. -4/-4+4square root of 2 3. 1/1+ square root of 2

209. ## Math

Given the following prime factors, determine the original number as well as all of its factors. 2*3*5*7 I know that 2*3*5*7 is 210 but I don't know what to do next.

210. ## Precalculus

Find the roots of the following quadratic equations by factoring. y=x^2+9x-36 I got (x+12)(x-3) but on the answer key it says that the answer is this, however it renames the x values with opposite values. For example, the answer on the review for it has my

211. ## Mafth

Which has more pencils, 3 packs with 40 pencils or 40 packs with 3 pencils? Explain.

212. ## Human and social biology

where a disease is always present, why are preventitive measures better for the whole population than treatment?

213. ## algebra2

graph each system of equations and describe it as consistent and independent, consistent and depedneent, or inconsistent 40. x-6y=12 3x+18y=14 41. -5x-6y=13 12y+10x=-26 42. 8y-3x=15 -16y+6x=-30

214. ## English

What can be written at the conclusion of a personal narrative?

215. ## math

for what values of k in y=3x+k with the curve y=-x^2-3x+6 intersect the line at 2 points

216. ## Chemistry

we would build one spectrometer apparatus with webcam to analyze two different beers based on yeast or bitterness so which one would be easy/less time to analyze yeast or bitterness ? please expalin why :S

217. ## EVERYONE

HI. For one of my classes i need to invent/innovate a product. So it is a year long project and if anyone has anyone sort of ideas it would be really helpful. Thanks (Thin along the lines of what you really hate and need fixed)

218. ## Earth Science

Explain how you could measure the density of a mineral with an exact amount of water and a scale .

219. ## Precalculus

How can I find out how this graph and these sets of numbers are one-to-one compatible? I have no clue.. Here is a screenshot of the questions. Just replace the 0 with an O. Thank you! prntscr.c0m/4rnu45

220. ## Physics

Knowing that at the time of the release the balloon was 73.8 m above the ground, determine the time, τ, it takes the bag to reach the ground from the moment of its release.

222. ## history

4. what kind of buildings were instructed to build the monks of Cluny along the Camino de Santiago? was it hospitals and churches?

223. ## college algebra

y = 1 − (x − 2)^2

224. ## Hi! i am sorry

How do i use a word Furthermore in a sentences ?

225. ## history

For this paragraph: The kings of Spain, Santiago bishops and nobility paid high taxes and they made large donations of palaces, monasteries and lands a powerful Cluniac order enjoying a true religious and economic monopoly in Spain We have to explain what

226. ## Algebra 1

I have been trying to figure out how to solve multi-step equations. Such as 1/2x+1/4x=16. How do you solve these? I can't seem to figure it out.

227. ## Pre-Calc

help please For f(x)=3x+1 and g(x)=x^2-6 find (f-g)(x) A. x^2-3x-7 B. 7+3x-x^2 C. 3x^2-17 D. -x^2+3x-5

228. ## math

6units to the right and 5units up

229. ## Pre-Calculus/Trignometry

am i right? for f(x)=2x+1 and g(x)=x^2-7 find (fog)(x. 2x^2-13

230. ## Math

Factor Completely 8y^5+12y^3+4y

231. ## Math

Posted by NEED HELP on Monday, September 29, 2014 at 9:12pm. Have three problems and I'm really confused how to solve/simplify 1. 4/3+square root of 5 2. -4/-4+4square root of 2 3. 1/1+ square root of 2

232. ## English

Can you help me come up with a really good introduction for my essay of the narrative of the life of Olaudah Equiano, that deals with his opinion of white men on the ship .

233. ## c++

when i compile the following, many erors appear // include necessary libraries #include #include // use std namespace using namespace std; int main() { // declare the value of PI const double PI = atan( 1.0 ) * 4.0; // declare variables to store the X and

234. ## CHM LAB

we are doing complexometric titration for the data sheet it askes to find mass of CaCO3 in sample how do I find it ?

235. ## science

what is background information mean?

236. ## Geometry

the sum of two whole numbers is an even number. one of the numbers is even. can a deduction be made about the other number?

237. ## Math

36+81=____(____+____)

238. ## Math Help

Hi! I really need help with this. I'm so confused. Thanks! :) If h(x)=4/(5x+2)^2, find the two functions f and g so that f(g(x))=h(x).