# Questions Asked onApril 27, 2013

1. ## math

If a basketball player consistently shoots 80% from the free throw line and she takes 25 free throw shots throughout the course of a game, how many free throws can she be expected to make?

2. ## Chemistry

A sample of argon gas at STP occupies 56.2 liters. Find the number of moles of argon and the mass in the sample

3. ## Neurology

Which of the following pairs of terms identify spaces that are roughly PERPENDICULAR (orthogonal) in the human brain (give or take 30 degrees or so)?

4. ## physics 102

An aluminum wing on a plane is 30.6 m long when the temperature is 20 oC. At what temperature would the wing be 0.06 m shorter

5. ## Calculus

A cylinder is inscribed in a right circular cone of height 5.5 and radius (at the base) equal to 2 . A) What are the dimensions of such a cylinder which has maximum volume? B) What is the radius? C) What is the height?

6. ## Math

One fourth of herd of goats was seen in the forest. Twice the square root of the number of the herd had gone up the hill and the remaining 15 goats were on bank of the river. Find the total number of goats. I got the equation to be x/4 + 2 root x + 15 = x

7. ## 12th

an electron above the earth is balanced by the gravitational force and the electric field of the earth. find the electric field of the earth.

8. ## physics

Consider a five-pointed star made of resistors as shown below. Each resistor has resistance R=6 Ω. Find the equivalent resistance in Ohms between the points A and B.

9. ## physics

A Martian rover is moving up a hill sloped at 30.0° with the horizontal. If it has a constant velocity of 1.50 meters/second, calculate its vertical displacement after 21.0 seconds.

10. ## calculus

A reservoir is in the form og the frustum of a cone with upper base of radius 8ft and lower base radius of 4 ft and altitude of 10ft. The water in the reservoir is xft deep. If the level of the water is increasing at 4ft/min., how fast is the volume of

11. ## physics

two charge 5NC and -2NC are placed at a point (5cm,0,0)and (23cm,0,0)in a region of a space where there is no other electric field.calculate the electrostatic potential energy of this charged system

12. ## Informal Logic

Looking to increase the profits of his lemonade stand, Johann doubled the price of a cup of lemonade from 25 cents to 50 cents. This clearly shows Johann’s lack of business sense, for now he’ll almost certainly sell fewer cups at the new price and

13. ## Statistic

Suppose that you are in charge to see if dropping an iPhone 5 will damage it. You want to find the proportion of iPhone 5 that breaks. If you want a 95% confidence interval for this proportion, with a margin of error of 5%, how many iPhone 5 should you

14. ## Informal Logic

11{2[3(11)35]}> Some politicians claim to support the environment in speeches they make around the country. However, to get to those speeches they ride in gas guzzling, pollution creating private planes. They therefore clearly don’t believe a word of

15. ## Informal Logic

In a survey of 10 film historians, half voted for Nosferatu as the greatest vampire film ever made, and the other half voted for Dracula. However, when asked which lead vampire character they considered more charismatic, all of the film critics chose

16. ## College Physics

A uniform meter stick of mass M has an empty paint can of mass m hanging from one end. The meter stick and the can balance at a point 19.9 cm from the end of the stick where the can is attached. When the balanced stick-can system is suspended from a scale,

17. ## physics

2. At time t =0, the current to the dc motor is reversed, resulting in an angular displacement of the motor shaft given by θ = (198 rad/s)t – (24 rad/s2)t2 – (2 rad/s3)t3 a. At what time is the angular velocity of the motor shaft zero? b. Calculate

18. ## math

IF the speed of train A is 10 mph slower than train B. Train A travels 220 miles in the same time it takes train B to travel 270. What is the speed of both trains.

19. ## Statistics

Suppose x has a mound-shaped distribution with sigma = 9 . A random sample of size 36 has sample mean 20. Is it appropriate to use a normal distribution to compute a confidence interval for the population mean m? Explain. Find a 95% confidence interval for

20. ## Informal Logic

Arthur: The solutions to most mystery novels I read are not believable. However, my enjoyment of a mystery novel depends only on its suspenseful mood and colorful characters. Norton: Roughly 80% of the mystery novels I read have believable solutions, which

21. ## Algebra 2/ Trigonometry

The expression 4 - cos² A is equivalent to 1)5 - sec² A 2)5 - sin² A 3)5 + sin² A 4)5/sec² A

22. ## Chemistry

How many grams of CaCl2 would be required to produce a 3.5M(molar) solution with a volume of 2.0L?

23. ## Life Orientation

Explain how drug addiction is a human factor that may cause ill health,accidents,crises or disaster

24. ## Chemistry

Consider the titration of 50 mL of 0.250 M HCl with 0.1250 M NaOH. Calculate the pH of the resulting solution after the following volumes of Na OH have been added. a) 0.00 mL b) 50.00 mL c) 99.90 mL d) 100.00 mL e) 100.1 mL The question is, I get, for

25. ## physics

Consider a five-pointed star made of resistors as shown below. Each resistor has resistance R=6 Ω. Find the equivalent resistance in Ohms between the points A and B.

26. ## Physics

A current I=2.3 A flows around a continuous path that consists of portions of two concentric circles of radii a and a/2, respectively, where a=6 cm, and two straight radial segments. The point P is at the common center of the two circle segments. Calculate

27. ## math

An electric pole touches the ground due to bending in a wind. It is found that standing part of pole is equal to the distance of end touching the ground. If the end touching the ground from the pole is at distance 4 m, what was the length of pole before

28. ## Physics

A pair of in-phase stereo speakers is placed side by side, 0.85 m apart. You stand directly in front of one of the speakers, 1.1 m from the speaker. What is the lowest frequency that will produce constructive interference at your location?

29. ## Physics

Help please, Four charges are placed at the four corners of a square of side 15 cm.The charges on the upper left and right corners are +3 uC and -6 uC respectively. The charges on the lower left and right corners are -2.4uC and-9 uC respectively. The net

30. ## chem

The half-life of is 30.0 days. What fraction of a sample of this isotope will remain after 16.2 days?

31. ## physics

With a mass = 10 k .. the horizontal surface on which the block slides is frictionless. The speed of the block before it touches the spring is 6.0 m/s. How fast is he block moving at the instant the spring has been compressed 15 cm? K=2.0kN/m

32. ## Informal Logic

Catherine goes to her local movie theater only to see romantic comedies. Since Catherine did not go to the movies yesterday, there is not a romantic comedy playing at her local theater. The reasoning above is flawed because the evidence (Points : 1) does

33. ## Informal Logic

Surveys show that people who use calorie information to decide which foods to eat consume on average 100 calories less than they would if they didn’t check calorie information before eating. Strangely though, people who use calorie information in this

34. ## Chemistry

Calculate the percent ionization of 0.140 M lactic acid in a solution containing 8.5×10−3 M sodium lactate.

35. ## Algebra 2/ Trigonometry

The expression sin(2π - θ)is equivalent to

36. ## Algebra 2/ Trigonometry

If cos y = -4/5 when 90°≤ y ≤ 180° what is the value of cos 2y?

37. ## Algebra 2/ Trigonometry

If cos θ = c, then sin²θ/2 equals 1) 1-c/2 2) 1+c/2 3) 1-c/c+c 4) 1-c/4

38. ## Algebra 2/ Trigonometry

The expression oos² θ/sin θ + sin θ is equivalent to 1) 1 + cos² θ 2) cos² θ 3) sin θ 4) csc θ

39. ## chemistry

Estimate the fraction of unoccupied atomic sites in lead at temperature 10K below its melting point. Vacancy fraction,nv/N temperature 1.8*10^-7 100C 7.2*10^-6 200C express answer in vacancy fraction nv/N.

40. ## chemistry

If a sample of NH4NO3 contained 5.04 x 1022 hydrogen atoms, how many moles of NH4NO3 are in your sample?

41. ## maths

I toss a coin 4 times. Find the chance of getting a) 2 heads b) more heads than tails

What is game theory? Will we study?

43. ## Physics

A Body with a mass of 150kg is located at a height of 45 m. If allowed to fell freely to the ground. What will be its velocity on impact? KE= 1/2*m*v^2 PE= m*g*h 1/2*m*v^2= m*g*h 1/2*150kg*45m*v^2= 150kg*9.81*45m 3375* v^2= 66217.5 3375*v^2/3375=

44. ## Physics

Consider a thin, infinitely long conducting ribbon that carries a uniform current density j (current per unit area). The width of the ribbon is w and its thickness s is extremely small (s≪w). P is a point in the plane of the ribbon, at a large distance

45. ## CPT Codes

A 12-year-old boy presents with his father to the ER due to open wounds to his arm, hand, and upper leg. The injury occurred when the boy fell on a barbed-wire fence at the farm while running. Diagnosis: Multiple open wounds to the right forearm, right

46. ## life Orientation

Identify and describe 3 environmental health hazards that cause ill health,crises,and or disasters within your community or any other community within South Africa and globally.

47. ## chemistry

Calculate the density of atoms in (001) in lithium (Li). Express your answer in units of atoms/cm2. incorrect

48. ## math

A student traveled 236 km in 18 days. At the same ratio how far would the student travel in 54 days.

49. ## math

If a conservationist catches 72 trout, tags them and throws them back in the lake. Later 33 trout are caught, 11 of them are tagged. How many trout would the conservationist expect to find in the lake.

50. ## pre+calc

C0rr+missi0n+kill+name+id++real+name+die

51. ## Math

On average, the temperature falls about 5.4 F for every 1,000 ft of additional altitude. If the temperature is 42 F on the ground estimate the temperature at 5,000 ft

52. ## L.o

in 10-15 lines critically discuss 5 ways in which the teenage pregnancy impacts on the community

53. ## History

If you are getting rid of slavery, how are you going to care for 3.5 million homeless, unemployed and uneducated former slaves? What I thought was to make schools and build homes for them so the slaves can make a career for themselves, however I am not

54. ## math

if 1,x,y is a geometric sequence and x,y,3 is an arithmetic sequence, compute the maximum value of x+y

55. ## math

In a bag of candy, there are five green candies for every two red candies. If there are 35 total candies in the bag, which of the following is the total number of green candies in the bag? i solve it but i do not know if is correct,so please can you check

56. ## Math-Borrow

Explain the term "borrow". Describe the situation in which it is used. Describe the confusion that may result from its use. Offer an alternative term and explain how this term would be less confusing to students.

57. ## Econimics

What are the welfare payments or consumer subsisdies?

58. ## statistics

A random sample of 100 of a population Mean is 31 and standard deviation 22 Approximate probability of 28

If a 20-sided fair die with sides distinctly numbered 1 through 20 is rolled, the probability that the answer is a perfect square can be expressed as a/b where a and b are coprime positive integers. What is the value of a+b?

60. ## World History

Why did Columbus fail as an administrator on land but excel as a ship captain?

61. ## physics

A 2.0 mass tied to the end of a 1.5m string swings as a pendulum. At the lowest point In its swing, the speed of the mass is 4.6 m/s. What is speed of the mass when at the instant when the string makes and angle of 35 degrees with the vertical?

62. ## Math

On average the temperature falls about 5.4 F for every 1,000ft of additional altitude. If the temperature is 42 F on the ground, estimate the temperature at 5,000 ft.

63. ## physics

Two masses are slideing on a horizon frictionless surface. A 10 kg mass has a velocity of 9 m/s in the x direction and a 20 kg mass has a velocity of 12 m/s in the y direction .the masses collide and stick together, what is he final velocity of the

64. ## math

what is the solution to this problem 6 5x=1296

65. ## chemistry

The solubility of the fictitious compound, administratium fluoride (AdF3) in water is 3.091×10−4 M. Calculate the value of the solubility product Ksp.

66. ## History

If you are keeping slavery, how will you improve the conditions of slave life? I do not know how to answer this question, can someone please help me.

67. ## algebra1

Vanessa bought a set of military medals through an antique dealer for \$120 .she gave two of the medals to her father and resold the rest,charging \$4 more per medal than she paid .if vanessa sold the medals for a total of \$156.how much did she charge for

68. ## algebra1

a cyclist completes a 150-mile race in a certain amount of time.she completes another 150-mile race a month later,but this time it takes an hour longer to cover the same distance and her average speed is 5 mph less than in the first race.find the average

69. ## Chemistry

The energy of vacancy formation in palladium (Pd) is 1.5 eV. At 888C there is one vacancy for every million (106) atom sites. What temperature would be necessary to achieve a vacancy fraction of one for every thousand (10 3) atom sites?

70. ## real estate finance

Max and Seymour are purchasing their first home using a VA guaranteed mortgage loan. Both have full entitlement. Their combined GMI is \$1900.00. Their other monthly obligations total \$200. What housing expense payment can they qualify for? _________ They

71. ## algebra1

juan's band produced a number of CDs to sell at a gig.the batch of CDs cost \$170.00 to make and each CD was sold for \$2.50 more than it cost to produce.juan gave 2 CDs to his friends,but sold the rest for a total of \$198.00.How many CDs did juan produce?

72. ## Life orientation

Identify and describe 3 environmental hazards that cause ill health, crises, and or disasters in any other community within South Africa and globally

73. ## algebra1

chen bought a bag f groceries weighing 15 pounds.His friend,jo,bought a bag of groceries that always weighed 15 pounds,but contained one less item.the average weight per item for jo's groceries was 1/2 pound more than for Chen's.How many items were in Jo's

74. ## algebra1

jose ordered a box of fruits for his market stand costing \$6.When his order arrived,Jose discovered that 20 fruits were rotten and threw them in the trash.He sold all of the remaining fruits for a total of \$8,charging 3 cents more for each fruit than he

75. ## U.S. History

Name one if two reasons why workers were unhappy after the end of World War 1. Support your answer with facts.

76. ## Chemistry

How much mL of 0.2 M NaOH are needed to titrate vinegar while doing a titration with Phenolphthalein?

77. ## algebra1

a wholesaler bought a batch of t-shirts for \$77.00.She gave two of the T-shirts to her daughters and then sold the rest for a total of \$90.If the wholesaler sold each T-shirt for \$2 more than it cost her,how much did she pay for each T-shirt?

78. ## U.S. History

List the key points of the Homestead Act and describe the effect it had on the opening of the western territories.

79. ## Chemistry

How much mL of 0.2 M NaOH are needed to titrate vinegar while doing a titration with Phenolphthalein?

80. ## History

My teacher wanted me to make an essay about slavery.. This is my essay: At the time of the American Revolution, the split between North and South over the issue of slavery was apparent but not great enough to prevent the states from uniting as one nation.

81. ## U.S. History

List the key point of the 19th Amendment and discuss the effect it had on society.

82. ## U.S. History

The Civilian Conservation Corp was established in 1933. Discuss why it was established and its main function.

83. ## Life orientation

Identify and describe 3 environmental health hazards that cause ill health,crisis,and or disasters within your community or any other community within South Africa

84. ## life orientation

two community organizations that involve in supporting or giving redress to hiv

85. ## Herndon High

cos15°cos30°- sin15°sin30° =

86. ## physics

What type of contamination involves Rags, tie wraps, and safety wire?

87. ## Math

A solid sphere of 1.46kg and radius 0.1m, is rolling down a rough plane that is inclined at an angle 30 degrees to the horizontal. The 3 ferces acting on the sphere are its weight, friction force and the normal reaction. The sphere starts rolling down when

88. ## Telisis Prep

The base of a rectangle is 6 inches greater than twice the height. The perimeter is 78 inches. Find the area.

89. ## math

jim has grades of 84, 65, 76 on three tests. what grade must he obtain on the next test to have an average of exactly 80% for all four tests?

90. ## Chemistry

Arsenic acid has the formula H^3AsO^4. It is a triprotic acid. Abottle is marked 0.422 N arsenic acid. What is the Molarity of this solution?

91. ## life orientation

Provise five or more ways in which you critically discuss how lack of physical fitness and proper nutrition impacts on a teenager?

92. ## maths

Triangle ABC has side lengths a,b and c. If these lengths satisfy a^2=a+2b+2c and -3=a+2b-2c, what is the measure (in degrees) of the largest angle?

93. ## Math

A solid sphere of 1.46kg and radius 0.1m, is rolling down a rough plane that is inclined at an angle 30 degrees to the horizontal. The 3 forces acting on the sphere are its weight, friction force and the normal reaction. The sphere starts rolling down when

94. ## Physics

The boom weighs 2450 and is attached to a friction less pivot at its lower end. It is not uniform; the distance of its center of gravity from the pivot is 39.0 of its length. What is the tension in the guy wire? Link to picture of problem which is needed

95. ## stats

Identify the direction and all possible interpretations of each of the following correlations. Be sure to identify each example as positive, negative, or zero (not correlated). Then give all possible causal interpretations for the results. Margaret notices

96. ## maths

find the range of sin(siny)+cos(siny)

97. ## borrowing in subtraction

How is the term borrowing in subtraction confusing for children to learn?

98. ## chemistry

Estimate the fraction of of unoccupied atomic sites in lead (Pb) at a temperature 10K below its melting point. DATA: Vacancy Fraction, nv/N T (degrees C) 1.8*10-7 100 7.2*10-6 200 Express your answer in terms of vacancy fraction, nv/N:

99. ## chemistry

Which direction would equilibrium shift in the reaction N2 + 3H2 2NH2 + 22,000 cal if it is cooled?

100. ## Calculus

Evaluate the following integrals. Show all the steps in your calculation. a. ç_0^2(3x^3 - x^2 + 2)dx b. ç_0^1(e^2x - x^2)dx c. ç1/(x+3)dx

101. ## trig

how to do this? how much does this equals? 2cos160*cos140*cos100

102. ## French

I'm quite confused on one of my French questions. A quell sandwich canadien le croque-monsieur vous fait-il penser? Could someone just help me with the translation?

103. ## trig

how many solutions (answers) does this equation has? sinx=sin1

104. ## science

At time t =0, the current to the dc motor is reversed, resulting in an angular displacement of the motor shaft given by è = (198 rad/s)t – (24 rad/s2)t2 – (2 rad/s3)t3 (15 marks) a. At what time is the angular velocity of the motor shaft zero? b.

105. ## Math

I want to build a landscaping block garden oval with twelve inch blocks. I want the second row to come out even. How would I figure this out.

106. ## Science

I need pictural or written ideas in order to help make a drawn model to explain the greenhouse effect. I've used websites but they are to technical for what I'm looking for. I'm basically looking for a model but I can't copy any. Please give me your

107. ## Life orientation

Identify and describe three environmental health hazards that cause ill health ,crises ,and globally .include evidence that is current of the identified issues .use graph s,statistics,pictures etc to show evidence of your information.

108. ## inorganic chemistry

what is the product of reaction dehydrated K3(Al(C2O4)3) with KMnO4 in the present of KOH?

109. ## math

how much does this equals? 3sin^(2)x - 7cos^(2)x , when cos2x=-0,1 ?

110. ## Physics

Two large, parallel, conducting plates are 20 cm apart and have charges of equal magnitude and opposite sign on their facing surfaces. An electrostatic force of 3.0 10-15 N acts on an electron placed anywhere between the two plates. (Neglect fringing.) a)

111. ## math

PRINCIPLE OF MATHEMATICAL INDUCTION=1/2+1/4+1/8+....+1/2n=1-1/2n

112. ## Life orientation

Identify and describe three environmental health hazards that cause ill health ,crises ,and globally .include evidence that is current of the identified issues .use graph s,statistics,pictures etc to show evidence of your information.

113. ## maths

Find the indicated sum. n ‡”4(0.5)^K K=1 Help me because I do not know how to solve it.

114. ## math

you complain that the hot tub in your hotel suite is not enough. the hotel tells you that they will increase the temperature by 10% each hour. If the temperature of the hot tub is 75%F, what will be the temperature of the hot tub after 3 hours, to the

I need a variety of tutors opinions and choices of what song they like the best. just write the name of the song amongst with the artist PLEASE SPREAD THE WORD ACROSS AND ANSWER BELOW ASAP!

116. ## math

how will I develop a transaction program?

117. ## Life orientation

Ways in which the environmental problem impact on the community.

118. ## algebra

x+6/4x^2 + 3/2x^2 = x+4/2x^2

119. ## algebra

x+6/4x^2 + 3/2x^2 = x+4/2x^2

120. ## Chemistry

Which of the following will increase the strength of a sample of 90% SiO2 - 10% MgO Quench the entire sample in water Quench half of the sample in water Cool the entire sample with air jets Cool half the sample with air Submerge the sample in a salt bath

121. ## trig

solve the point given below is on the terminal side of an angle0. find the exact value of the six trigonometric functions of 0. (10,-10)

122. ## Chemistry

Why does the titration of terephthalic acid yield a mass of approximately half the molar mass?

123. ## PHYSICS

3. A particle of mass m= 5.00 kg is released from point A(at rest) and slides on the frictionless track shown in Figure below. Determine: ( 8 marks ) a. the particleâ€™s speed at points B and C and (4marks) b. the net work done by the gravitational

124. ## maths

I toss a coin 4 times. Find the chance of getting the sequence HTHT

125. ## maths

A random number generator draws at random with replacement from the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. Find the chance that the digit 5 appears on more than 11% of the draws, if a) 100 draws are made b) 1000 draws are made

126. ## maths

A die is rolled 12 times. Find the chance that the face with six spots appears once among the first 6 rolls, and once among the next 6 rolls.

127. ## maths

Suppose a student guesses the answer to a true or false Question on a test by tossing a coin: if the coin lands Heads, she answers True, and if it lands Tails, she answers False. What is the chance that she gets the right answer?

128. ## math

the perimeter if a fence is 48 meters. if the width is 2 meters less then the length, find the with

129. ## Physics

A body with a mass of 75 kg is located at a height of 20 m. If it is allowed to free fall to the ground. What will be its velocity on impact?

130. ## maths

To get an A grade on the test, you need a total score of more than 16 points. One of the students knows the correct answer to 6 of the 20 questions. The rest she guesses at random by tossing a coin (one toss per question,true if heads and false if tails).

131. ## maths

A die has one red face, two blue faces, and three green faces. It is rolled 5 times. Find the chance that the red face appears on one of the rolls and the remaining rolls are green.

132. ## biology

TRUE OR FALSE all mutations in a gene would have an effect on the protein encoded by that gene. please help! :)

133. ## physics

A spherical shell of radius carries a uniform surface charge density (charge per unit area) . The center of the sphere is at the origin and the shell rotates with angular velocity (in rad/sec) around the -axis ( at the origin). Seen from below, the sphere

134. ## Physics

In grandpa’s time automobiles were previously manufactured to be as rigid as possible, whereas autos are now designed to crumple upon impact. Why?

135. ## physics

When a cannon with a longer barrel is fired, the force of expanding gases acts on the cannonball for a longer distance. What effect does this have on the velocity of the emerging cannonball? (Do you see why long-range cannons have such long barrels?)

136. ## physics

Why bother using a machine if it cannot multiply work input to achieve greater work output?

137. ## life orietation

what are the institutions involved in redressing enviromental factors such as air pollution?

138. ## physics

To combat wasteful habits, we often speak of “conserving energy,” by which we mean turning off lights, heating or cooling systems, and hot water when not being used. In this chapter, we also speak of “energy conservation.” Distinguish between these

139. ## Math

Let Alpha and Beta be the zeros of the cubic polynomial x^3 + ax^2 + bx + c satisfying the relation Alpha * Beta -1 = 0. Prove that : c^2 + ac + b + 1 = 0. Please work the complete solution

140. ## Physical Science

A park ranger wants to shoot a monkey hanging from a branch of a tree with a tranquilizing dart. The ranger aims directly at the monkey, not realizing that the dart will follow a parabolic path and thus will fall below the monkey. The monkey, however, sees

141. ## Agricultural science

What are the important features of a building which could be used as a milking shed(parlour),dairy(milk room) and food store to ensure production of clean fresh milk?

142. ## life orintation

describe the life style disease and explain 5 factor that contribute to the disease

143. ## trig

cos(t)=3/5 determine the exact value of t to the nearest degree

144. ## Calculus

Given the function: f(x) = x^2 + 1 / x^2 - 9 a)find y and x intercepts b) find the first derivative c) find any critical values d) find any local(relative) extrema e) find second derivative Please show me how u got this!!

145. ## social

explain or give an example why slaves should not be beaten. REMEMBER THINK LIKE A PERSON FROM 1815...

146. ## social studies

explain or give a reason why slaves should have less hours to work.. REMEMBER YOU ARE THINKING LIKE A PERSON FROM 1815. NOTE: Please do not say because they work to hard and need to work less.. Be specific with your writing. Thank you

147. ## English

Where does Sonya live? She lives in Moscow. With whom does Sonya live? She lives with her father, mother and her little sister Olga. On weekends, where do they go? They go to their dacha. What is a dacha? A dacha is a Russian country house. Who has a

148. ## environment

Name two institutions/community organization that are involved in supporting or giving redress to these disasters Teenage pregnancy. Explain how these organization are involved in providing a safe and healthy environment.(suggestion:Find out about NGO's)

149. ## History

Explain or give an example why slaves should be treated like citizens. REMEMBER, THINK LIKE A PERSON FROM 1815...

150. ## Physics

A body is moving north at 12m/s and 5 seconds later it has a velocity of 30m/s in the same direction. What was the acceleration of the body?

151. ## economics

wht are five critically discuss of five way in which the human or environmental problm impact on the community about food production

152. ## chem

What is the empirical formula of the compound with a mass percent composition of 70.0% Fe and 30.0% O? (Type your answer using the format CH4 for CH4

153. ## chem

What is the empirical formula of the compound with a mass percent composition of 70.0% Fe and 30.0% O? (Type your answer using the format CH4 for CH4

154. ## Statistic

A Toyota dealer wants to find out the age of their customers (for advertising purposes). They want the margin of error to be 3 years old. Suppose the sigma is 13 years old. If they want a 90% confidence interval, how many people do they need to know about?

155. ## Calculus

Find the derivative of -20x/(x^2-9)^2

156. ## Physics

A spherical shell of radius R carries a uniform surface charge density (charge per unit area) σ. The center of the sphere is at the origin and the shell rotates with angular velocity ω (in rad/sec) around the z-axis (z=0 at the origin) (a) Calculate the

157. ## physics

Climbing to the top of Mount Everest is hard. But, it's slightly easier than you might think as people weigh less as they climb to the top. Let WE be a person's weight on top of Mount Everest and WS be their weight at sea level. What is the value of

158. ## Physics

A charged particle with mass m, charge |q|=6.4 ×10−19C and speed v=3 ×106 m/s enters from the bottom of the figure and traces out the trajectory shown in the fields shown. The only electric field E=5 ×103 V/m is in the region where the trajectory of

159. ## Physics

The boom weighs 2450 and is attached to a friction less pivot at its lower end. It is not uniform; the distance of its center of gravity from the pivot is 39.0 of its length. Picture Link: tinypic./view.php?pic=53qp3m&s=5 What is the tension in the guy

160. ## chemistry

a 2.3% (m/v) LiCI solution p;repared from 53.0 ml of a 10.0%(m/v)LiCI solution. what is volume in milliliters

161. ## physics

A 3 kg objects falls from a height of 10 m to the ground. the work done by air resistance is 20 J. What is the kinetic energy of the object as it hits the ground?

162. ## physics

Give the potential energy function U = 2×^2-25×: determine the force function for this potential.

163. ## physics

Give the potential energy function U = 2×^2-25×: determine the force function for this potential.

164. ## english

What is a good thesis sentence for fishing camp

165. ## life orientation

Critically discuss 5 ways in which the human problem impacts on the community

166. ## maths

Find the 9term of the sequence 1 ,sqr(2), 2

167. ## History

Who would support the decision of changing slavery, North, some Southerners, or both? REMEMBER, THINK LIKE A PERSON FROM 1815..

168. ## agricultural science

Any five purpose of fencing a farmland

169. ## Life orientation

In lin10 or 15 discuss 5 wayz in whch hiv impact on community

170. ## chemistry

In the following options which one is maximum/highly exothermic reaction..? 1)SrO+h2o 2)BaO+h2o 3)CaO+h2o 4)MgO+h2o Pls.... Need it real quick

171. ## History

Who would oppose this decision? Why might they do so? What i said was that most Southerners would oppose this decision because they own large plantations and farmers and/or wealthy people/families don't and/or do the work by themselves. However, I wasn't

172. ## physics

I post this early ; but didn't understand the answer.. a 3-kg object falls from a height of 10m to the ground. The work done by air resistance ia 20 J. What is the kinetic energy of the object as it hits the ground..

173. ## math

. Find the slope of a line that is parallel to the line containing the points (3, 4) and (2, 6). (1 point) m = 1 m = 2 m = –2 m = 1/2

174. ## History

How would changing how slavery is affect the future of the United States, if you were in the year of 1815?

175. ## Life Orientation

In 10-15 lines critically discuss 5 ways in which hiv & aids impacts on the community. Provide relevant sources to support your claim..

176. ## maths

The simplified form of the complex no. (1-i/2 2i) (1/-2-2i) is.....?

177. ## Physics

Inside an insulated container, a 250-g ice cube at 0°C is added to 200 g of water at 18°C. (i) What is the final temperature of the system? (ii) What is the remaining ice mass?