# Questions Asked onFebruary 11, 2015

1. ## Algebra 1

What is the value of n so that the expression x^2+11x+n is a perfect square trinomial?

3. ## chem

How many chloride ions are present in 65.5 mL of 0.210 M AlCl3 solution

4. ## Geometry

A secant and a tangent to a circle intersect in a 42 degree angle. The two arcs of the circle intercepted by the secant and tangent have measures in a 7:3 ratio. Find the measure of the third arc. If someone could help me figure out how to do the

5. ## english

write a letter to your friend in another school telling him/her at least three ways you find life in the final year class is different from being in the class

6. ## math

Find the limit, if it exists. (If an answer does not exist, enter DNE.) lim x→∞ (sqrt(49x^2+x)−7x)

7. ## Physics

You are helping your friend move a new refrigerator into his kitchen. You apply a horizontal force of F = (202i − 161k) N to try and move the 75.0-kg refrigerator. The coefficient of static friction is 0.640. a) how much static friction force does the

asked by Pissed off at this question rn
8. ## english

To explore the ___________ , or effect of mythical literature on contemporary literature, a reader should identify key characters, settings, and plots. I am not sure what the "_____" is, I do ot have any options, help please?

9. ## Consumer Math

Marta borrowed \$1,380 for 15 months at 13 percent APR. How much will she pay in interest?

10. ## Introductory Algebra

the length of a rectangle is 7 meters more than twice the width. the perimeter is 68 meters. solve for length and width. I need this step by step using the blueprint...please.

11. ## math 3

maude hung 3 pictures on her wall. each picture measures 8 inches by 10 inches. what is the total area of the wall covered by the pictures?

12. ## Chemistry

Why should a mixture to be separated by column chromatography be introduced onto the column in a minimum amount of solvent?

13. ## HISTORY

All of the following statements about the Declaration of Independence are TRUE except:

14. ## math

Farmer fred has 200 sheep on his farm he sells 40 of them what percentage of his sheep does he have left?

15. ## math

A sheet of paper measure 40cm¡Á20cm.A strip 4cm wide is cut from it all around find the area of strip cut out and area of remeining sheet of paper

16. ## English 9

Why does Neiterkob’s daughter most likely tell the myth “The Beginnings of the Maasai”?

17. ## math 3

an orange weight 198 grams. a kiwi weight 85 grams less than the orange. what is the total weight of the fruit? my answer is 283 grams is it correct?

18. ## Chemistry

Calculate the amount of heat (in calories) absorbed when 50.0g of water at 20C spreads over your skin and warms to body temperature, 37C. I don't understand how to figure this out - which number is the specific heat number? 20C or 37C? I know delta temp

19. ## Chemistry 2

If a gaseous sample contains 74% N2 by volume, what is the solubility of N2 in water at 25°C and 1.0 atm (kH in H2O at 25°C = 7.0 10-4 mol/Latm)?

20. ## Science

1) Which of the following describes the correct sequence of the movement of food during digestion? :Stomach, large intestine, small intestine :Mouth, esophagus, small intestine :Esophagus, stomach, small intestine*** :Small intestine, stomach, large

21. ## GEO

On a map with a scale of 1:50,000, a measured distance of 7.5 cm. represents an actual distance of: ______ km. is the correct answer 375 km or 7.5cm = 0.00007500km given the map scale of 1:50,000

22. ## ENGLISH GRAMMA

1) The sun had nearly set when we reached home. Adverb qualify adverb 2) Modern trains can travel incredibly fast. - adverbs qualify adjective 3) The judges were utterly amazed at the performance.- Adverb qualify adjective 4) The bitterly cold winds have

23. ## math

If a fowl is treated, probability of dying is 1/10 while if not treated the probability is 7/10 calculate the probability that, a fowl picked at random from the 36 fowl is (i) Treated with the drug and will die (ii) Not treated with the drug and will die

24. ## algebra

Annie and Ravi have two candles. One of them is one inch longer than the other. Annie lights the longer candle at 7:00 and RAvi lights the shorter candle at 8:30. At 11:00 the two candles are the same length. The shorter candle burns out at 12:30 and the

25. ## math

the volume of an equilateral triangular frustum is 183√3 m^3. the upper base, 9 in., above the lower base has an edge which measures 8 in. compute for the edge of the lower base.

26. ## Art

1) How did francisco goya caricature to depict the figures in contemptuous of the insults? :The facial features of the frenchmen are exaggerated to show their confusion :The frenchman's hats are comically large to show their self importance :The frenchmen

27. ## Language Arts

1. In "The Road Not Taken", the description of the wood as yellow A. tells us the wood is very young, not yet full grown. B. makes the setting seem churchlike. C. tells us the scene is taking place in noon. D. helps us see the scene as autumnal. Is the

28. ## physics

find the resistance of 134m of No.20 copper wire at 20 degrees C (p=1.72x10^-6Ohom cm , A= 2.07x10^-2 cm ^2)

29. ## Chemistry

I need to make an Orbital diagram for Li2O. Could you help me find a helpful website or something?

30. ## marketing

the first step in taking control of your finances is

31. ## algebra

The fraction of men in a population who are married is 2/3. The fraction of women in the population who are married is 3/5. What fraction of the population is single?

32. ## Physics

Two point charges of +1.0 uC and -2.0 uC are located 0.50 m apart. What is the minimum amount of work needed to move the charges apart to double the distance between them? (k=8.99x10^9Nm^2/C^2)

33. ## Physics

A baseball player slides into third base with an initial speed of 3.8m/s. If the coefficient of kinetic friction between the player and the ground is 0.40, how far does the player slide before coming to rest?

34. ## math 3

Kami scored a total of 21 points during her basketball game. she made 6 two-point shots and the rest were three-points shots. how many three-point shots did Kami make?

35. ## history

Why was emperor hoghwu represented in paintings (depicted)

36. ## Geometry

Can you help me.the lengths of the sides of a triangle are in the extended ratio 3:10:12. The perimeter is 400cm. What is the length of the longest side in centimeters.

37. ## Math

A countertop is 16 feet long and 3 feet wide

38. ## statistics

One of the tallest living men has a height of 263 cm. One of the tallest living women is 245 cm tall. Heights of men have a means of 177 cm and a standard deviation of 8 cm. Heights of women have a mean of 163 cm and a standard deviation of 4cm. Relative

39. ## science

what is true about red blood cells

40. ## physics

A man named Harold is standing in a train car that has no windows. Since there aren't any windows, he doesn't know how fast or in what direction the train is moving or whether it is accelerating or decelerating. Harold decides that he might be able to

41. ## History

which of the following best describes daily life in the south during the civil war? a.about the same as before the war because factories provided necessities b.difficult but tolerable because most people did not experience major changes c.better because

42. ## Math

Translate the sentence into an inequality. Six increased by the product of a number and 10 is at most −16 . Use the variable x for the unknown number.

43. ## Science

Why are the days typically hotter in June than in December here in the US? A.Beacuse the sun gives off more light and heat in the summer B.Because the Earth is closer to the sun in the summer and farther from the sun in the winter C.because the Earth's

44. ## math

Find a formula for a function that has vertical asymptotes x = 3 and x = 6 and horizontal asymptote y = 3.

45. ## math

Find the horizontal and vertical asymptotes of the curve. y = 3x+6/x−7

46. ## Find the domain of the function

Find the domain of the function. f(x)=8+3/x^3

47. ## Math

Explain It In one night, George reads 3 chapters of a book with 27 chapters. After the second night, he has read a total of 8/27 of the book. Explain how you would determine the number of chapters George read the second night. Solve the problem.

48. ## math

what is the graph of the function y = 2 x 2^x graphs below i think it is graph c

49. ## Algebra 1

The area of a rectangle is 30 ft^2. The length is 1 less then 3 times the width. How wide is is the rectangle?

50. ## Geo

On the map of the Mauna Loa volcano in Hawaii (distributed in class), determine the distance in miles and in kilometers from the “Patrol Cabin” (at the summit of Mauna Loa) to the “Rest House” (northeast of the summit or Mauna Loa). The scale of

51. ## Microeconomics

The demand for a good is given by QD = 750 – 0.4P. What is consumer surplus at a price of \$80?

52. ## Chemistry

N2+3H2-> 2NH3 how many moles of hydrogen are needed to completely react with 2.6 moles of nitrogen?

53. ## math

The length and breadth of a rectangular paper were measured to be the nearest centimeter and found to be 18 cm and 12 cm respectively. Find the percentage error in its perimeter.

54. ## math

The acceleration am/s^2 of a particle moving in a straight line is given by a = 18t – 4, where t is time in seconds. The initial velocity of the particle is 2 m/s a) Find the expression for velocity in terms of t b) Determine the time when the velocity

55. ## Science

Describe the flow of blood in the human body, including through each of the four chambers of the heart. Explain how the blood changes as it moves through various locations in the body.

57. ## Algebra 1

A box shaped like a rectangle prism has a height of 17 inches and a volume of 2,720 in^2. The length is 4 inches greater than twice the width. What is the width of the box?

58. ## physics

A sensitive gravimeter at a mountain observatory finds that the free-fall acceleration is 0.0070m/s2 less than that at sea level (gsealevel = 9.83 m/s2). What is the observatory's altitude? Assume Rearth = 6.37 × 106 m.

59. ## maths

the price of a car is reduced from 1500 to 1050 by what percentage is the price reduced?

60. ## Physics

If the drive chain exerts a force of 2090 N at a radius of 5.00 cm, what is the angular acceleration of the wheel? (b) What is the tangential acceleration of a point on the outer edge of the tire? (c) How long, starting from rest, does it take to reach an

61. ## English Essay

From reading the short story "The Boat", what are the effects when people refuse to be restricted to the confines of a particular society? This is an essay topic that I chose, and I am not sure if my three subtopics cover it all (anger/disappointment,

62. ## Science

What do angiosperms produce in order to protect their seeds?

63. ## math

Milky uses 192 beads to make a bracelet and a necklace.It takes 5 times as many beads to make a necklace than it does to make a bracelet.How many beads are used to make the necklace 192 divided by 5 is 38 and I got remainder of 2 but I don't know what I

64. ## Algebra

Niko had his savings increased by 5% this year. He started with \$350 in his account and calculated how much he had at the end of the year by using the following sets of calculations: \$350×0.05=\$17.50 \$350+\$17.50=\$367.50 Find a single number that Niko

65. ## science

Two sleds collide and stick together sled a has mass of 140kg and a speed of 17m/s sled b has a mass of 80kg and a speed of 24m/s. There is no friction between the sleds and snow. Will the sleds be motionless after the collision or which one will move the

66. ## Chemistry

What is the (simplified) meaning of Zn(s) + 2MnO2(s) ZnO(s) + Mn2O3(s) [e° = 1.43 V]? Please answer soon, because I will not be in class too much longer and I have no internet access at home. Thank you in advance!

67. ## Chemistry

A solution of 4-methyl-3-penten-2-one in ethanol shows an absorbance of 0.52 at 236 nm in a cell with a 1-cm light path. Its molar absorptivity in ethanol at that wavelength is 12,600 M^-1 cm^-1. What is the concentration of the compound?

When solving an inequality, why is it necessary to perform the same operation on each side of the inequality sign?

69. ## science

can someone explain the life cycle of the animalia kingdom???

70. ## geometry

i need help on a question that involves finding the "value of the variable" ive started the question but im stuck of how to continue .its a right triangle which hypotenus length is cut by a altitude line "w+9" .the lengths cut are 8 and 18 .

71. ## Math (Interest)

If I was given an amount of money for 1 month, and I wanted to compound its interest monthly, which formula would I need to use? My interest rate is 2.5%. I want to compound monthly (so n=12). But I want to find the amount after compounding interest

72. ## health

The capillaries are the smallest and most ________ of the blood vessels

73. ## math

Find the limit. lim x→∞ 2−e^x/2+9e^x

74. ## Organic Chemistry

Why does the carotene elute from the column before the chlorophylls?

75. ## math

Find the limit. lim x→∞ sqrt(x^2+9)

76. ## Organic Chem

Why does the carotene elute from the column before the chlorophylls?

77. ## Math

A certain club consists of 5 men and 6 women. a) How many ways are there to form a committee of 3 people and b) How many ways are there to form a committee consisting of 3 men and 4 women.

78. ## math

Find the horizontal and vertical asymptotes of the curve. y = 3x+6/x−7 x= y=

79. ## chemistry

what mass of Silver oxide would be required to produce 100.0 g. of silver.

80. ## Science!!!

Which force is pushing the riders in the swings on a swing chair ride out from the center of the ride? A. Free fall B. Gravity C. Momentum D. Centripetal force Is the answer D? Thank you

Suppose you work at an amusement park. Your boss has asked you to determine the "people current," a measurement of moving people coming through the entrance of the park. a) what would be the units of "people current?" b) what information would "people

Suppose you work at an amusement park. Your boss has asked you to determine the "people current," a measurement of moving people coming through the entrance of the park. a) what would be the units of "people current?" b) what information would "people

83. ## math

Find the horizontal and vertical asymptotes of the curve. y = 7e^x/e^x−8 x=? y=?(smaller y-value) y=?(larger y-value)

84. ## chemistry

A moon rock collected by a U.S. Apollo mission is estimated to be 4.50 billion years old by uranium/lead dating. Assuming that the rock did not contain any lead when it was formed, what is the current mass of 206Pb per 1.150 g of 238U in the rock? The

85. ## visual art

What are the design principles

86. ## random

is this free help forever ?

87. ## math

Find the horizontal and vertical asymptotes of the curve. y = 4+x^4/x^2−x^4 x=? (smallest x-value) x=? x=? (largest x-value) y=?

88. ## math

For each of two rectangles, the length to width ratio is 3:2. The ratio of the length of the larger is 7:5. What is the ratio of the area of the two rectangles?

89. ## math

Find the horizontal and vertical asymptotes of the curve. y = 2x^2+x−1/x^2+x−42 x=? (smaller x-value) x=? (larger x-value) y=?

90. ## math

Find the horizontal and vertical asymptotes of the curve. y = x^2+5/9x^2−44x−5 x= (smaller x-value) x= (larger x-value) y=

91. ## rubidoux high school

Susan is putting money into a checking account. Let y represent the total amount of money in the account (in dollars). Let x represent the number of weeks Susan has been adding money. Suppose that x and y are related by the equation = + 30 x 350 y

92. ## math

Find the horizontal and vertical asymptotes of the curve. y = 3x+6/x−7 x= y=

93. ## math

(a) Use a graph of f(x) = sqrt(2x^2+9x+5)−sqrt(2x^2+2x+1) to estimate the value of lim x→∞ f(x) to one decimal place. (b)Use a table of values of f(x) to estimate the limit to four decimal places. (c)Find the exact value of the limit.

94. ## English HELP!!!!😰😰

In prepositional phrases, can the subject be more than one word long????? HELP!!!!!

95. ## physics

A box of mass 26 kg is hung by a thin string from the ceiling of an elevator. The string can hold up to 276.1 N and will break under larger tension force. How much can the maximum acceleration of the elevator be going upward so that the string does not

96. ## math

Find the reciprocale of 0.342. Hence evaluate: (ã0.0625)/0.342

97. ## algebra

Find the slope of a snowboarding beginner hill that decreases 24 feet vertically for ever 30-foot horizontal increase

98. ## math

For each of two rectangles, the length to width ratio is 3:2. The ratio of the length of the larger rectangle to the length of the smaller rectangle is 7:5. What is the ratio of the area of the two rectangles?

99. ## Chemistry

A 35.00 mL sample of water at 30.0°C is placed in an open container with an external pressure of 1.00 atm. 30.0 kJ of heat is added to the water sample. The density of water is 1 g/mL. (a) How many grams of liquid water remain at the end of the process?

100. ## Math

I have a project where I'm supposed to calculate the interest of a given amount monthly and continuously, and then compare the methods. We were given a chart with each's month's principal amount (and we're given 1 number for each month of 1 year), and I

101. ## Algebra 1

A ball is thrown into the air with the in initial upward velocity of 45 ft/s. It's height (h) in feet after t seconds is given by the function h=- -16t^2+45t+6. After about how many seconds will the ball hit the ground?

102. ## Science!!!

If a bowling ball hits a wall with a force of 6 N, the wall exerts a force of (blank) back on the bowling ball. A. 0 N B. 3 N C. 6 N D. 12 N Is the answer C? Thank you

103. ## Math

Sally is buying 6 identical shirts. The original price for one shirt is 39.99. The store is having a "buy one get one half off" sale and Sally has a coupon for an additional 25% off. The sales tax rate is 4 3/8. What is the total cost for the items Sally

104. ## Math

Q. Sheila's skates weigh 4 lbs. 3 oz., Heidi's skates weigh 3 lbs. 7 oz., and Javier's skates weigh 3 lbs. 13 oz. what is the average weight of the four skate pairs of skates? - A. Do I just add them all??

105. ## Algebra 1

A ball is thrown into the air with the in initial upward velocity of 60 ft/s. It's height (h) in feet after t seconds is given by the function h=- -16t^2+60t+6. What will the height be at t=3 seconds?

106. ## physics

a tsunami originating in japan has a wavelength of 10^5 m and a period of 10 mins. how long does it take to travel 8000km?

107. ## scince conditon

I don't know if its a scicnce condition question though but.If u have a condition called scoliosis which is have a condition with ur back that 1 of ur solider blades is bigger than the other and the spine is curved from not rlly sitting up staright at all

108. ## Physics

A cannon ball is fired horizontally with an initial speed of 75 m/s from the top of a 50-m tall building. When the ball hits the ground, its velocity vector makes an angle θ with the horizontal. What is θ

109. ## Science Fair Project

Please help anyone!!!!!!!!!!!!!!!!!!!!!!! I need a science project that can be done in 2-5 days but also that can give me a very good mark!!!!!!!!!!!!!!! please reply A.S.A.P.!!!!!!!!!!!!!!!!!! -From a Science Fair Project in need of a project which can be

110. ## math 3

Gwen pours 236 milliliters of water into Ravi's beaker. Henry pours 189 milliliters of water into Ravis beaker. Ravis beaker now contain 800 milliliters of water. How much water was in Ravis beaker to begin with? my answer is 375 is this correct?

111. ## H.A.C.E.

Hi, can anyone please tell me what does a doctor do, what skills do they have or need, what are the degrees and trainings and how much money they earn? I need to now this for my H.A.C.E. project mark which will effect my result in my report card and i have

112. ## social studies

I need help checking my answers. the ! stands for my answer. 1. what three-day battle became the turing point of the civil war? gettysburg antietam greenville ! chancellorsville 2. the northern victory at_________ split the confederacy and gave control of

113. ## Physics

The rms current in a 41-Ω resistor is 0.69 A. What is the peak value of the voltage across this resistor? Answer: V(rms) = A(ohms)(sqrt2)

114. ## Chemistry

A biochemical engineer isolates a bacterial gene fragment and dissolves a 15.1 mg sample of the material in enough water to make 32.7 mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C. a) What is the molar mass of the gene

115. ## math

FOUR QUESTION PROBLEM: Amy and three friends launch a new website. Each of the four friends e-mails the web address to three new friends. These new friends forward the web address to three more friends. If no one receives the e-mails more than once, how

116. ## math

Show how to write and evaluate an expression to represent and solve this problem: Jeff and his friend each text four classmates about a concert. Each classmate then texts four students from another school about the concert. If no one receives the message

117. ## Algebra 1

students measured the diameters and circumferences of the tops of a variety of cylinders. Below are the data that they collected. estimate the diameter of a cylinder with circumference 22cm. Cylinder Tops Diameter(cm) 3,3,5,6,8,8,9.5, 10, 10, 12

118. ## trig

I am currently taking a trig class. I need help understanding how to solve for sin,cos, and tan in problems which give an angle and a side length or the hypotenus. Any help would be muchly appreciated

119. ## Organic Chem

Why does the carotene elute from the column before the chlorophylls?

120. ## Physics

During a rElay race along a straight ROAD the 1st runner on a three person team runs D1 with a constant velocity v1. The runner then hands off the baton to the sEcond runner who runs d2 with a constant vElocity v2. The batton is then passed to the 3rd

1. An indorser's implied contract to pay a subsequent holder in the event that an instrument is dishonored is known as an indorser's A. duty B. accommodation C. primary liability D. secondary liability I chose C. 2. A defense that arises out of some

An indorser's implied contract to pay a subsequent holder in the event that an instrument is dishonored is known as an indorser's? A. duty B. accommodation C. primary liability D. secondary liability I chose Secondary liability

123. ## math

In a livestock research stations a new drug for a certain fowl disease is being tried. Samples of 36 fowls were diagnosed to have the disease. Twenty (20) fowls were treated with the drug and the rest were not. (a) Calculate the probability that a fowl

124. ## grammar

Which is the subject of this sentence? Look in the index for a mention of this type of error. A. type B. index C. (you) D. mention

125. ## Science

Describe how evolution and extinction are related.

126. ## science

can someone explain the life cycle of the animalia kingdom please

127. ## Physics Help!!!!!!!!!!!!!!!!

Suppose you were asked to develop a concept of "automobile current" ( a current formed by moving cars) for traffic on an interstate or busy street near you. a) what would be the units of "automobile current"? b) what info would be the "automobile current"

128. ## algebra

diana drove 320 miles, then increased her speed by 10 miles per hour for 500 miles. if the second part of the trip took 2 hours longer than the first, find her average speed.

129. ## AP European History

How did medieval Europe lay the groundwork for the rebirth of Europe (Renaissance)? What conditions existed that allowed Europe to evolve out of medieval conditions?

130. ## Physics

a BALL IS THROWN UPWARD WITH AN INITIAL VELOCITY OF 9.8 M/S FROM THE TOP OF A BUILDING. FILL A TABLE BELOW SHOWING THE BALLS POSITION,VELOCITY, and ACCELERATION AT THE END OF EACH OF THE 1ST 4SEC OF MOTION TIME(s) POSITION(M) VELOCITY(M/S) 1 2 3 4

131. ## Math lit, geography, life sciences and agriculture

Hi i am still in matric and i don't know myb i cn be a chef under this subj...or an jenourlist

132. ## Science

Ball A Momentum Before collision is 3 kg m/s. Ball B Momentum Before Collision is 2 kg m/s. Total Momentum of Both Balls After Collision is 6 kg m/s Ball A and Ball B are rolled so that they will collide. Does the data in the table above demonstrate the

133. ## CHEMISTRY

the grams of sugar (carbohydrate) in a can of cola that has 150Cal and no fat and no protein Express your answer to two significant figures and include the appropriate u

134. ## math

7^-(1/5) / 7^-(7/5) * 7^3/5 can be simplified as 7^a/b where a and b are positive integers. find a*b-a answer: 7^-(1/5) / 7^-(7/5) * 7^3/5 7^5/7(5/7) * 7 ^3/5

135. ## Chemistry

A flexible balloon containing 1.5 mol of... ideal gas at constant pressure of 1.5 at... 100 °C. Calculate the change in intern...‡ (ΔE) of the gas.

136. ## Physics

A device for training astronauts and jet fighter pilots is designed to rotate a trainee in a horizontal circle of radius 10.2 m. If the force felt by the trainee on her back is 7.61 times her own weight, how fast is she rotating? (in m/s) Express your

137. ## Physics

Cleveland is 480 km east of Chicago. A plane leaves Chicago with an air speed of 800km/h in a wind which blows [S 45 degrees W]. (A) what heading will the pilot take in order to fly with a ground speed which is directly east? (B) how long will it take to

138. ## Physics

At what minimum speed must a roller coaster be traveling when upside down at the top of a circle so that the passengers will not fall out? Assume a radius of curvature of 8.47 m. (in m/s)

139. ## Chemistry

name all the possible isomers of methyl nitrobenzoate and nitroacetanilide which can be formed

140. ## Physics

How many revolutions per minute would a 15.6 m diameter Ferris wheel need to make for the passengers to feel "weightless" at the topmost point? Do not enter unit.

141. ## Physics

If a curve with a radius of 91.5 m is perfectly banked for a car traveling 77.4 km/h, what must be the coefficient of static friction for a car not to skid when traveling at 91.6 km/h?

142. ## Physics

A 18.6 kg monkey hangs from a cord suspended from the ceiling of an elevator. The cord can withstand a tension of 202 N and breaks as the elevator accelerates. What was the elevator's minimum acceleration? (in m/s^2)

143. ## math

find the cost of painting a wall having a door of dimensions 4m¡Á3m.the length and breadth of the wall are 10m and 10m respectively and the of painting is 50 per m square

144. ## physics

Does the sun move to the west and accelerate east?

147. ## Algebra

A ball weighing 1.78 N is shot through a launcher, achieving a speed (from rest) of 41 m/s in 0.28 second. What is the mass of the ball?

148. ## chemistry

The specific heat of iron is 0.498 J/g °C. If 341 J of heat is added to 154.1 g of iron at 25.0 °C, what is the new temperature of the iron?

149. ## science

Through which are the chromosomes, transmitted according to the path of transmission of factors from the parental generation to offspring's as indicated by Mendle? (1) hereditary chapters (2) evolution (3) heredity (4) gametes

150. ## Chemistry

calculate the density of NH3 at S650mm of Hg

151. ## Physics

A spring with a spring constant of 40.1 N/m is attached to different masses, and the system is set in motion. What is its period for a mass of 2.8 kg?

152. ## physics

what is the electric force exerted on a test charge of 3.86 x 10^-5 C if it is placed in an electric field of magnitude 1.75 x 10^4 N/C ?

153. ## question/curiousity

A nurse decides to write a book, and a lawyer decides to illustrate the book.. what do the two have in common? my ans: Two potentially turn a hobby into a second career?

154. ## Maths

Runner A speed 1km/hour Runner B speed 2km/hour They start of at the same point at the oval.In a lap that is 500m, how many times will they meet at the starting point after 10 hours. I managed to get the LCM for runner A,B using the time taken to complete

155. ## math

Shopping centers X, Y and Z are such that Y is 12 km south of X and Z is 15 km from X. Z is on a bearing of 330° from Y.

156. ## physics

a fruit drops from the top of a tree 40m tall, calculate. the time taken to reach the ground. the velocity just before it hits the ground.

157. ## physics

Two bodies have masses in ratio 3:4when a force is applied on the first body it moves with an acceleration of 6m/s2 how much acceleration will the same force produced in the body

158. ## Chemistry

Why does the carotene elute from the column before the chlorophylls?

159. ## Physics

Does the potential inside a hollow conductor change and why?

sally singleton's batting average is 0.375 and she has been at bat 120 times. How many times has sally hit the ball? pls help

161. ## Physics

Why does the potential inside a solid conductor not change?

162. ## Chemistry

A solution of 4-methyl-3-penten-2-one in ethanol shows an absorbance of 0.52 at 236 nm in a cell with a 1-cm light path. Its molar absorptivity in ethanol at that wavelength is 12,600 M^-1 cm^-1. What is the concentration of the compound?

163. ## Chemistry

Why does the carotene elute from the column before the chlorophylls?

164. ## Math

During the summer, you mow lawns for extra money. One customer pays you to mow the lawn every 6 days and another customer pays you to mow the lawn every 9 days. If you mow both lawns today, in how many days will uou mow both lawns again on the same day?

165. ## Chemistry

The freezing point of benzene is 5.5°C. What is the freezing point of a solution of 8.30 g of naphthalene (C10H8) in 320. g of benzene (Kf of benzene = 4.90°C/m)?

167. ## science

Through which are the chromosomes, transmitted according to the path of transmission of factors from the parental generation to offspring's as indicated by Mendle? (1) hereditary chapters (2) evolution (3) heredity (4) gametes

168. ## ^Math.^ Pls,I need help

QUESTION: Find the quadratic equation,which has difference of roots equal to 2 and the difference of the squares of roots equal to 5

169. ## science

If we added more mass to the blocks of wood during these lessons,how would that have changed the experiment?

170. ## macroeconomics

Which of the problems in the construction of the CPI might be illustrated by each of the following situation? Explain. Investing manufactory of SamSung in Vietnam

171. ## Algebra 1

What is a solution of x^2 +6x=-5? my answer is -1

172. ## Algebra 1

Find the solution of x^2+14x+112=0 I don't think that there is a solution

173. ## government

Who are the top 5 most important members of the Executive Office of the President?

174. ## Geometry

Hi, so i reallllyy need help, i have an assignment that i have to complete, but the thing is theres a file and this site doesn't allow links, so does anyone have email to help me if you can help i will greatly appreciate it i'll email you the file. btw

175. ## math

The shadow of an electric pole is 5 m. long when thr angle of elevation of the seen is 60 degrees. Find the length of the shadow when the angle of elevation of the seen is 45 degrees

176. ## Math

Write an numerical expression equivalent to (3) (3) (3) using exponents. Evaluate the expression above

177. ## Algebra

What is the simplified version of 6x ^2 + 7x + 2

178. ## maths

Seven guns all commence firing together at a target but they continue to fire at interval 2,3,5,7 and 12 minutes. After how many hours do all five guns fire at the same time as they did in the beginning? Thanks for helping

179. ## criminal investigations

why advances are paramount to the historical evolution of criminal investigations

180. ## GPH

Why would a scale map look like 1:24000 (10') I don't know what that 10 means

181. ## social studies

could some plz check my answers. this * stands for my answer. my answers r also at the last question on the bottom. 1. why did william t. sherman want to attack coulmbia? because he had lost a previous skirmish there because he wanted to attack the captail

182. ## biology

Through which are the chromosomes, transmitted according to the path of transmission of factors from the parental generation to offspring's as indicated by Mendle?option are as follows (1) hereditary chapters (2) evolution (3) heredity (4) gametes

7>10>9-3=?

184. ## Chemistry

A solution of NaOH(aq) contains 7.7 grams of NaOH in 93 mL of solution. Calculate the pH at 25◦C. ---- 7.7 grams x (1 mol/39.997 grams) = 0.19 mol 0.19 mol/0.093 L = 2.07 M pOH = -log(2.07) = -0.316 ---- Am I doing anything wrong? Why am I getting a

185. ## science

A golf ball leaves the club 35m/s at an teta of 35 degree above the horizontal . Find a) range b) maximum height reached c) time of flight

186. ## Physics

Three blocks are connected on the table as shown below. The coefficient of kinetic friction between the block of mass m2 and the table is 0.345. The objects have masses of m1 = 3.25 kg, m2 = 1.25 kg, and m3 = 2.50 kg, and the pulleys are frictionless. The

187. ## statistics

Listed below are the duration's (in hours) of a simple random sample of all flights of a space shuttle program. Find the range, variance, and standard deviation for the sample data. Is the lowest duration time unusual? Why or why not? 71 100 237 199 164

188. ## math

The demand function for a product is p=32−8q where p is the price in dollars when q units are demanded. Find the level of production that maximizes the total revenue and determine the revenue. q= units R= \$

189. ## Language Arts

In What ways is the use of descriptive language in the two poems similar? The poems are "The Road Not Taken", and "O Captain! My Captain!". A. Both use analogies to represent decisions the speakers make. B. Both use sorrowful images to communicate regret.

A minor is held responsible for the fair value of A. athletic shoes B. CDS C. medical care D. video games I chose C.

Hey I just need my answers checked Please. 1. The right of a bailee to hold goods until charges are paid is known as a A. Mechanic's lien B. pledge C. reasonable care D. conversion I chose A. 2. A company that transports people or goods for pay but limits

192. ## Physics

The best sprinters can run a 100 m in 10.0 s. A 77.2 kg sprinter accelerates uniformly for the first 51.0 m to reach top speed, which he maintains for the remaining 49.0 m. What is the average horizontal component of force exerted on his feet by the ground

193. ## physics

A cylindrical 9.16 kg pulley with a radius of 0.373 m is used to lower a 2.64 kg bucket into a well. The bucket starts from rest and falls for 3.94 s. What is the linear acceleration of the falling bucket? The acceleration of gravity is 9.81 m/s 2 . Answer

194. ## Organic Chem

Im not really sure how to begin with this question.. 1. The synthesis of toluene by the aluminum chloride-catalyzed Friedel-Crafts alkylation of benzene is badly complicated by the formation of di-, tri-, and polymethylated benzenes. A simple solution to

195. ## Math

Sandi counted all the parallelograms of any size she could find in the design below how many parallelograms are there in all

196. ## english

plane crash flying from dhangadhi to bijhang 30 people dead now make newspaper

197. ## MATHS

A proper fraction with numerator 2 lies between a quarter and a half. Write down the greatest such fraction.. Thanks for your help

Hey just need my answers checked again please! 1. The property pledged by the debtor as security for the debt is the A. surety B. credit C. interest D. collateral I chose D. 2. The person the agent deals with on behalf of the principal is called the A.

199. ## math

Which is faster a car completing a 500 race in about 3.33 hours or a car completing a 300 mile race in 2.5 hours

200. ## math

Building a rectangular sandbox for younger brother. The length. Is 1 foot longer than twice the width of the sandbox. The perimeter of the sandbox is 29 feet what equation could be used to determine the w, the width, in feet, of the sandbox?

201. ## geography

mike has 2 mats that are in the shape of triangles. the scale factor of the 2 triangles maths is 7/4. what is the ratio of the perimeter?

202. ## Biology - Genetics

If genes a, b, c, and d are genetically linked to each other, does it follow that a recombination experiment would detect genetic linkage between a and d?

203. ## math

Marty ate 4/6 of his pizza and Luis ate 5/6 of his pizza. Marty ate more pizza than Luis. How is that possible?

204. ## physical science

how much energy is required to lower the temperture of 450g of sand from 60 celsius to 15 celsius

205. ## chemistry

at a given temperature and pressure 20ml of the gas diffuses through a porous membrane in 5 seconds. calculate the volume o carbon dioxide which diffuses in 10 seconds if the vapour density of the gas is 11 a)10√(2) b)20/√(2) c)40√(2) d)10/√(2)

206. ## water dynamics

a projectile 20ft in lentgh 4-6 thousand lbs traveling @ 100mph @ 100ft below water surface can be stopped and/or have said projectile change its course by using how many pounds of water preasuure to achieve goal? And what are the approximate dimensions of

207. ## how to delete ur account

is it possible to delete ur account if so how?

208. ## math101

\$6900 loan at 12% and eventually repaid \$9384 (principal and interest). What was the time period of the loan?

209. ## MATH

how many times as great as 10^-5 is 100^2 ?

210. ## Language Arts

How are the speakers in the two poems different? A. One is celebrating a decision he made, while the other regrets a choice. B. One is contemplating a past choice, while the other is mourning something out of his control. C. One regrets a past decision,

211. ## Math

Five friends went to a baseball game. Three of friends each bought a ticket for x dollar and soda for \$6.00. The other two friends each bought only tickets. Write and simplify an expression that represents the amount of money spent

212. ## Math

It took Mr.Bingea 8 minutes to run 4/5 of a mile. How many minutes did it take him to run the entire mile?

213. ## Algebra 1

There is a state soccer tournament with 128 teams competing for 1st place. Each week, half of the teams get eliminated. How many teams remain after 6 weeks? A. 16 B. 8 C. 4 D. 2

214. ## math

Milky uses 192 beads to make a bracelet and a necklace.It takes 5 times as many beads to make a necklace than it does to make a bracelet.How many beads are used to make the necklace

215. ## Physics-Electricity

A toaster consists of 4 heating elements that are connected in parallel. The toaster is connected to a 240 V mains supply. When the toaster is switched on, a current of 2.5 A is drawn from the mains supply. Calculate the electrical energy used by a single

216. ## PHYSICS

A variable length air column (closed on one end) is placed just below a vibrating wire of mass 5.00g, which is fixed at both ends. The length of the air column is gradually increased from zero until the first position of resonance (first harmonic) is

217. ## English Grammar

1) The sun had nearly set when we reached home. Adverb qualify adverb 2) Modern trains can travel incredibly fast. - adverbs qualify adjective 3) The judges were utterly amazed at the performance.- Adverb qualify adjective 4) The bitterly cold winds have

218. ## Calc

Find the solution to e^x = 2+2x

219. ## Geo

On a map with a scale of 1:24,000, a measured distance of 1 in. represents an actual distance of ______ ft. is the correct answer 1000 ft

220. ## Math

What is a ratio

221. ## pre-algebra

The scale factor for a blueprint is 7cm= ___m Model 40.4 cm actual 80.6m

222. ## math

7^-(1/5) / 7^-(7/5) * 7^3/5 can be simplified as 7^a/b where a and b are positive integers. find a*b-a i'm not good when it come to negative exponent, plz help!

223. ## math

The scale of a map is 5m= 15 mi maps 8.2 actual____

224. ## delete account

I looked in my gmail and it didn't hae that my account was deleted permantly or anything and I can still log into it?????

225. ## Chemistry

Why does the carotene elute from the column before the chlorophylls?

226. ## Math

Find the amount of the tip on a 75\$ bill if a 15% tip is left. A. 11.25 B. 11.20 C. 10.50 (my answer) D. 12.00

227. ## Physics

A car speeds up from 12 m/s to 20 m/s in 6.4s.If its mass is 1200 kg,what force must its engine provide ?

228. ## linear algebra

For what values of a and b are the vectors [ a − b −3] and [7 a + b] equal?

229. ## Math - Answer Check

Write the composition function and then find the value. f(x) = 2x+3 g(x) = x^2 k(x) = square root(x - 4) 1. g(k(x)) g(k(20)) My answer: Function is x - 4, the value is 16. 2. f(g(x)) f(g(2)) My answer: Function is 2x^2 + 3, the value is 11.

230. ## English Grammar

1) The sun had nearly set when we reached home. Adverb qualify adverb 2) Modern trains can travel incredibly fast. - adverbs qualify adjective 3) The judges were utterly amazed at the performance.- Adverb qualify adjective 4) The bitterly cold winds have

231. ## Science

Are there more hours of daylight in the summer than in the winter

232. ## science

when a molecule of water vapro in the air come into contact with a cold can of soft drink, they lose energy, slow down, and form a liquid due to a decrease in what?

233. ## perpendicular vectors

Find two unit vectors each of which is perpendicular to vectors (1, 1, 0) and (1,0,1) What I did: a x b = (1, -1, -1) |axb|=square toot 3 correct answer is +/- (1/√3 - 1/√3 - 1/√3) or =+/- 1/√3 (1, -1, -1)

234. ## Physics

A cannon fires projectile (ordinarily called a cannonball) at an angle 85 degrees from the ground. The cannonball has a speed 150 m/s, and it is launched from hill 20 m above the plain where it will land.

235. ## math

What is your debt ratio? If you budget \$375 to payoff your credit card debt and you payoff the highest interest card first while maintaining the interest accrued on the other card, how many months does it take you to pay it off and how much is the payment

Which part of speech is the underlined word in the sentence? Next, add the eggs to the batter. A. preposition B. adverb C. conjunction D. interjection

237. ## Algebra

x^1/2 - 7x^1/4 + 12 = 0

238. ## chemistry

If 6.20 mol of calcium carbide (CaC2) reacts with an excess of water, how many moles of acetylene (C2H2), a gas used in welding, will be produced? CaC2(s) + 2 H2O(l) Ca(OH)2(aq) + C2H2(g)

239. ## English

From reading the short story "The Boat", what are the effects when people refuse to be restricted to the confines of a particular society? This is an essay topic that I chose, and I am not sure if my three subtopics cover it all (anger/disappointment,

240. ## math

if \$13.69 is the price of a pair of sneakers after 75% was taken off, what was the original price of the sneakers?

241. ## Physics

How fast do you need to swing a 180-g ball at the end of a string in a horizontal circle of 0.6-m radius so that the string makes a 35∘ angle relative to the horizontal?

242. ## science

1.explain why most refrigerators are painted with a white shiny colour.

243. ## Spanish

I am currently in Spanish 1. I am gradually catching on to Spanish, but my question is.. Can you help clarify to me when I should put a small word before a verb or noun.. for instance "los libros" How do I know whether its La, los and etc.? I know it has

244. ## Icp

A student is helping her teacher move a 9.5 kg box of books. What net sideways force must she exert on the box to slide it across the floor so that it accelerates at 1.0 m/s2?

245. ## Chemistry

Why does the carotene elute from the column before the chlorophylls?

246. ## Geography

new found planet

247. ## Justice

What are the Native American and Mennonite approaches to restorative justice? I understand restorative justice and the philosophy of approaches, but what are the exact approaches.

248. ## math

Find the limit lim x→−∞ sqrt(4x^6−x)/(x^3+5)

249. ## Science!!!

A 2,500 kg car moves at 15 m/s^2; 15m/s^2 is the (blank) of the car. A. Acceleration B. Force C. Velocity D. Speed Is the answer D? Thank you

250. ## maths(Probability)

Two fairly six~sided dice are rolled,find the probability that their total score is (a)2 (b)7 (c)a prime number (d)a perfect square. Solutions. (a)2/6=1/3 (b)7/6

251. ## Art - Drawing

Can you give me some tips on how to draw graffiti (anything really)? I am good with drawing something but the thing is I have to look a picture to draw it. Its almost as if I don't have enough imagination. But since that's how I've been drawing, tips