# Questions Asked onFebruary 18, 2011

1. ## sociology

1. What aspects of the social and work environment in a fast-food restaurant would be of particular interest to a sociologist because of his or her sociological imagination.

2. ## physics

A firefighter a distance d from a burning building directs a stream of water from a fire hose at angle θi above the horizontal as in the figure. If the initial speed of the stream is vi, at what height h does the water strike the building? (Use theta for

3. ## physics

An arrow is short vertically upward with an initial speed of 25m/s. When it's exactly halfway to the top of its flight, a second arrow is launched vertically upward from the same spot. The second arrow reaches the first arrow just as the first arrow

4. ## physics

A fireworks rocket explodes at height h, the peak of its vertical trajectory. It throws out burning fragments in all directions, but all at the same speed v. Pellets of solidified metal fall to the ground without air resistance. Find the smallest angle

An airplane has an airspeed of 724 kilometers per hour at a bearing of 30 degrees.The wind velocity is 32 kilometers per hour from the west. What are the groundspeed and the direction of the plane?

6. ## science

Imagine that you are riding a bus. A girl gets on, and you recognize her as someone you know but have not seen for two years. 1. What are the roles of the central nervous system and the peripheral nervous system in allowing you to recognize the person and

7. ## Chemistry

Samples of Neon and helium are placed in separate containers connected by a pinched rubber tube. There is 5.00 liters of neon at a pressure of 634 mm Hg in the first container. The second container has 3.00 liters of helium at 522 mm Hg. When the clamp is

8. ## physics

In a local bar, a customer slides an empty beer mug down the counter for a refill. The bartender is momentarily distracted and does not see the mug, which slides off the counter and strikes the floor at distance d from the base of the counter. The height

9. ## Physics

An electron is at the origin. (a) Calculate the electric potential VA at point A, x = 0.410 cm. (b) Calculate the electric potential VB at point B, x = 0.820 cm. What is the potential difference VB - VA?

10. ## social studies

what aspects of a fast food restaurant would interest sociologists

11. ## chemistry/HELP PLLEASE

can someone please help me balance this equation?: potassium permanganate reacts with iron(II)sulfate and sulfuric acid to produce iron(II)sulfate and manganese(II)sulfate and potassium sulfate and water

12. ## physics

A dive bomber has a velocity of 235 m/s at an angle θ below the horizontal. When the altitude of the aircraft is 2.15 km, it releases a bomb, which subsequently hits a target on the ground. The magnitude of the displacement from the point of release of

13. ## physics

A projectile is fired in such a way that its horizontal range is equal to 8.5 times its maximum height. What is the angle of projection?

14. ## Calculus 3

Determine whether the lines intersect(have a common point) and if so, find the coordinates of that point? r(t) = < 4t+3, 4t + 2, 6t + 6>, for -infinity < t < infinity R(s) = < s + 2, 3s - 1, -4s + 10>, for -infinity < t < infinity And if r and R describe

15. ## geometry

the angle of depression from d to f measures 10 degrees. if df equals 300m, find df. round to the nearest tenth.

16. ## history

constitutional amendment initiates a national income tax passed by which one: Theodore Roosevelt Woodrwo Wilson William Taft I think it is Taft

17. ## physics

If the speed of light through material Z is 2.5×108 m/s, what is this material’s index of refraction? The speed of light in a vacuum is 3 × 108 m/s.

18. ## physics

A science student is riding on a flatcar of a train traveling along a straight horizontal track at a constant speed of 12.0 m/s. The student throws a ball into the air along a path that he judges to make an initial angle of 60.0° with the horizontal and

19. ## Chemistry

Two rigid containers of equal volume hold hydrogen and argon gases respectively at the same temperature and pressure. Which of the following statements is(are) false ? A) The two containers hold an equal mass of gas. B) The two containers hold an equal

20. ## trig

How do I find the exact value of sin2x when secx is equal to the negative square root of three

21. ## chemistry

can someone please help me balance this equation?: potassium permanganate reacts with iron(II)sulfate and sulfuric acid to produce iron(II)sulfate and manganese(II)sulfate and potassium sulfate and water

22. ## chemistry

sodium chloride+water+ethanol+oxygen+carbon dioxide+water+sodium chloride=

23. ## College Chemistry

The molar heat of reaction, H rxn, for the reaction of Ca(s) + 2H+(aq) Ca2+(aq) + H2(g) is -544.789 kJ/mol and Hrxn, for the reaction of CaO(s) + 2H+(aq) Ca2+(aq) + H2O(l) is -192.42 kJ/mol, the heat of formation of water is -286 kJ/mol, The H ffor CaO(s)

24. ## hcs/335

What are managerial responsibilities related to administrative ethical issues, such as patient confidentiality (HIPAA)?

25. ## Physical science

The acceleration due to gravity on earth

26. ## hcs 335

can someone help me find some sites from waht i poisted below i would like to find some more information thank you

can someone please help me balance this equation?: potassium permanganate reacts with iron(II)sulfate and sulfuric acid to produce iron(II)sulfate and manganese(II)sulfate and potassium sulfate and water

28. ## college chemistry

.361 g of a non-volatile solute is dissolved in 160.0 g of water. The solute does not react with water nor dissociate in solution. Assume that the resulting solution displays ideal Raoult's law behaviour. At 90 oC the vapour pressure of the solution is

29. ## History

What was the attitude climate/situation surrounding the Clara Bow's/political life?

30. ## physics

A boy can throw a ball a maximum horizontal distance of R on a level field. How far can he throw the same ball vertically upward? Assume that his muscles give the ball the same speed in each case. (Use R and g as appropriate in your equation.)

31. ## Algebra 2

Factor f(x)=x^4+x^3-8x^2+6x+36 completely

32. ## math

Two batsmen A and B made the following scores in a series of cricket matches:- A: 14 13 26 53 17 29 79 36 84 49 B: 37 22 56 52 14 10 37 48 20 4 Who is more consistent? (Answer on basis of Karl Pearson’s measure of coefficient of variation, taking 35 as

33. ## Trig

tan 75 (show all work please)

34. ## math

one taxi charges 75 cents for the first quarter-mile and 15 cents for each additional quarter-mile. the second company charges \$1.00 for the first quarter-mile and 10 cents for each additional quarter mile. What distance would produce the same fare for the

35. ## engr 109

Calculate the resistance of a 1 mile length of wire if the conductivity (sigma) is 5.7x10^5 (ohm-cm)^-1 and the diameter of the wire is 1 inch. The formula for resistance is R = length/(sigma*Cross-sectional area) but all of the units must be consistent.

36. ## stats

a test consists of 25 multiple choice questions. Each has 5 possible answers, which only one is correct. If a student guesses on each question, find the following: a) prob that he will guess all of them right b)prob that he will guess at most 12 right c)

37. ## Math

An airplane has an airspeed of 724 kilometers per hour at a bearing of 30 degrees.The wind velocity is 32 kilometers per hour from the west. What are the groundspeed and the direction of the plane?

the triange is 31cm, side 1 and side 2 have equal lenghts, while side 3 is one centimeter shorter than twice then length of side 1, how long is each side?

39. ## physics

A ray of light has an angle of incidence of 30.4 degrees on a block of quartz and an angle of refraction of 20.7 degrees. What is the index of refraction for this block of quartz?

40. ## Trig

find (s+t) given that cos s=1/3 with s in quad I and sin T=-1/2 with t in quad IV

41. ## Present Value simple interest

11% interest \$186.00 interest paid 140 days what was the orginal amount please show calcualtion

42. ## statistics

if a data se has a mean of 10.0 seconds & a standard deviation of 2.0 seconds, what is the z score corresponding to the time of 4.0 seconds?

43. ## Chemistry

Explain which atom of the following pair have the smaller ionization energy: As, I

44. ## two views of king phillips war

I'm not sure what the two views mean? is it what king Phillip wanted, and what the whites wanted, do i explain about there wants...please help i read it but still don't get the "two views" of king Phillips war

45. ## physics

A car travels due east with a speed of 35.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 70.0° with the vertical. Find the velocity of the rain

46. ## english

can you please tell me a bit about mamma mia the musical /movie?

47. ## physics

A race car starts from rest on a circular track. The car increases its speed at a constant rate at as it goes 2.75 times around the track. Find the angle that the total acceleration of the car makes with the radius connecting the center of the track and

48. ## Math

what does this mean |-60| I don't remember what the lines mean????

49. ## Math

what does this mean |-60| I don't remember what the lines mean????

50. ## physics

A soccer player kicks a rock horizontally off a 40.0 m high cliff into a pool of water. If the player hears the sound of the splash 3.04 s later, what was the initial speed given to the rock? Assume the speed of sound in air to be 343 m/s.

51. ## GED MATH

You are given an equation of the form y = ax2 + bx + c. y = 4x2 + 2x − 3 (a) Use a graphing utility to graph the equation and to estimate the x-intercepts. (Use a zoom-in process to obtain the estimates; keep zooming in until the first three decimal

52. ## physics

A basketball star covers 2.70 m horizontally in a jump to dunk the ball (see figure). His motion through space can be modeled as that of a particle at a point called his center of mass (which we shall define in Chapter 9). His center of mass is at

53. ## physics

A rock is thrown upward from the level ground in such a way that the maximum height of its flight is equal to its horizontal range d. (a) At what angle θ is the rock thrown?

54. ## Geography check

This geographical feature is made up of two parts and continues through Eritrea, Ethiopia, and Tanzania. The answer is The Great Rft Valley, correct?

55. ## Stats

Skewed distributions were discussed in this week’s readings. Think about some of the psychological studies you are familiar with and the constructs investigated in those studies. Describe the study you are referring to and give some examples of the

What leaves after a disturbance in the climax community?

57. ## Geography check

almost entirely surrounded by coral reefs this african island country, is found due east of Madagascar. This is Mauritius? Or is it Port Victoria?

58. ## Algebra

Help me factor this it's so easy I am not getting it figured out! 8x^2-16xy+8y^2

59. ## English

EVERY YEAR AS SOON WHAT WILL WHAT DELICIOUS MOST IMPORTANTLY INDEED THE ______ ______ What are the next to words?

60. ## Chemistry

Is it true that: An isotope has a different number of neutrons than protons in the nucleus of its atom.

61. ## Algebra: HELP

Solve for x: x + 6 = 5(2x - 2) Answers to choose from, these are all fractions. A. 8/9 B. 16/9 C. -4/9 D. -14/9 Can someone please help me with this because when I saw the fractions I completely freaked!

62. ## Physics

An electric field is generated by a charge imbalance and the field is expressed by Coulomb’s Law. What is the value (and UNITS) of the proportionality constant in Coulomb’s law?

63. ## Algebra HELP

Can someone check my answers? Solve for m: m + 6 = 3(2m - 4) a.4 b.-6/5 c.18/5 d.2 answer: c. 18/5 Solve the equation and check your solution: 3(x + 6) = 18 + 3x a. -6 b. 0 c. all real numbers d. no solution answer: b. 0 Solve the equation and check your

64. ## Chemistry

Calculate the concentration of OH-(aq) in a solution which [H+] = 100 x [OH-]. Thank you.

65. ## geometry

The density of a block of wood is 0.78 grams per cubic centimeters. What is the volume of the block if its mass is 28.8 grams?

Find an equation of the tangent line to the graph of the function f defined by the following equation at the indicated point. (x - y - 1)3 = x; (1, -1)

67. ## Geometry

What is the volume of a right cylinder if the radius is 5 and the height is 4?

68. ## Physics

A uniform electric field of magnitude 410 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 3.00 cm. (a) What is the work done by the field on the electron?(b) What is the change in potential

Tim and Sasha have a bag containing 7 red marbles, 3 blue marbles, 6 white marbles, and 4 yellow marbles. Tim reaches in, without looking, pulls out a marble, records the color, and then puts the marble back.Sasha then does the same thing. What is the

70. ## foundationd of personal finance

. List two ways to begin putting aside money for investments. You can often save money by making small changes. Share one tip you think may help save some money in the long-run.

71. ## Physics

A proton is located at the origin, and a second proton is located on the x-axis at x = 5.58 fm (1 fm = 10-15 m). (a) Calculate the electric potential energy associated with this configuration. 1 (b) An alpha particle (charge = 2e, mass = 6.64 10-27 kg) is

72. ## english

Review the four paragraphs below. There is one paragraph matching each of the following types: summary, analysis, synthesis, and evaluation. Once you have read each paragraph, complete the following chart to identify the type of paragraph for each. My

73. ## anonumoys

A volleyball is spiked so that it has an initial velocity of 14 m/s directed downward at an angle of 61° below the horizontal. What is the horizontal component of the ball's velocity when the opposing player fields the ball?

74. ## Home Ec

Is knitting harder with a hook or with 2 knitting needles?

75. ## math

find the fracton notation for the ratio 73/88

76. ## Probability

A coin is tossed 3 times. What is the probability of getting 2 heads and 1 tail?

77. ## ethics

think the only kind of immigrants that should be favored is the ones that have decided to come to America legally. These are the people that have put time and money into getting somewhere instead of trying to get away with doing nothing. I know that if it

78. ## math

rule y=4x-5 input 3,5,7 help me find out the output values

79. ## Physics

A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.93 V and a current of 2.7 A are induced in the coil. The wire is the re-formed into a single-turn square coil, which

80. ## History

how did the rest of the US feel about war with mexico?

81. ## Chemistry

Please :) N2H4(g) + H2(g) 2 NH3(g) H1 = –1876 kJ 3 H2(g) + N2(g) 2 NH3(g) H2 = –922 kJ The H f for the formation of hydrazine: 2 H2(g) + N2(g) N2H4(g) will be_____kJ/mol.

82. ## Chemistry

Please :) N2H4(g) + H2(g) 2 NH3(g) H1 = –1876 kJ 3 H2(g) + N2(g) 2 NH3(g) H2 = –922 kJ The H f for the formation of hydrazine: 2 H2(g) + N2(g) N2H4(g) will be_____kJ/mol.

83. ## Chemistry

What's the relationship between ionization energy and electron affinity? I ionization eneergy deals with losing electrons and electron affinity deals with gaining electrons, but I don't know how to explain the relationship.

84. ## Chemistry

If the molecular mass for a chemical is 151.97 g/mol and the enthalpy of formation is -1128 kJ/mol, the heat change will be _______kJ when 10.0 g of this chemical is formed.

85. ## Chemistry

Based on H f = –1275 kJmol of glucose, the formation of glucose will be A. endothermic B. exothermic and heat will be A. released B. absorbed to /from the surroundings.

86. ## physics

If we are running on a threadmill with a speed such that I appear stationary and throw a ball, will the ball go further as compared to one who throws the ball while he is standing stationary. The concern is that though I appear stationary while I am

87. ## english

Review the four paragraphs below. There is one paragraph matching each of the following types: summary, analysis, synthesis, and evaluation. Once you have read each paragraph, complete the following chart to identify the type of paragraph for each.

88. ## Economics

At quantity of 8000, TR 3625, TC 3310, MR 100, MC 22 How many papers should the manager of El Dorado Star print and sell daily

A suitcase of weight mg = 450 is being pulled by a small strap across a level floor. The coefficient of kinetic friction between the suitcase and the floor =0.640 a) Find the optimal angle of the strap above the horizontal. (The optimal angle minimizes the

90. ## english

please,can you correct the grammar... i graduated last 2 years of 2 two years course in college and i want to pursue for 4 years course to have a degree course.

91. ## physics

a golf ball is hit off a tee witha speed of 50m/s at an angle of 37 degrees above the horizontal. At what two values of x (horizontal distance from the tee) will the ball be 25m above the ground?

92. ## physics

a golf ball is hit off a tee witha speed of 50m/s at an angle of 37 degrees above the horizontal. At what two values of x (horizontal distance from the tee) will the ball be 25m above the ground?

93. ## Algebra

Fine the slope intercept equation of the line that has the given characteristics. Slope 8,3 and y-intercept (0,-8)

95. ## physics

Identify the area of physics that is most relevant to each of the following situations. a)A high school football game b)Food preparation for the prom c)Playing in the school band d)Lightning in a thunderstorm e)Wearing a pair of sunglasses outside in the

96. ## algebra 2

Evaluate the expression. Assume m‚0. m0=?. Simplify your answer. I don't know why the symbol after the (m)didn't appear, but here goes again. Thank you.

97. ## com150

need help with appendix H grammar exercise 2

98. ## science!

how is nickel used in glass?

99. ## ON LINE LIBRARY SOURCES

HOW CAN THE ONLINE LIBRARY HELP ME WITH FINDING MY ACEDEMIC WRITING?

100. ## Math

Gina flew from Toronto to Chicago and back again. The average speed of the plane was 332 km/h to Chicago and 415 km/h back to Toronto. If the actual flying time for the round trip was 4.5 h, how far is it from Toronto to Chicago?

101. ## Physics

If two electrons (q = 1.60 x 10–19 C) are 1 m apart, what is the magnitude of the electric force repelling the two electrons?

102. ## Econ

Consider the following consumption function. C = 200 + .75(DPI), Where C is consumption, autonomous spending is 200, the MPC is .75, and DPI is disposable personal income. Using the Graph below, graph the Consumption Function. C 100 0 = Income On the

light waves

104. ## Islamic Managerial Ethics

Discuss the relevance of the five pillars of Islam to managers of organizations in the world today.

105. ## Chemistry

Calculate the pH of a 0.250M solution of Sulfurous acid, H2SO3.

106. ## math

a recipe call for 1.5 cups of mix to make 8 pancakes. John wants to make 12 pancakes and uses 2 cup of mix. Does John have the correct ratio for the recipe

107. ## english

I am having some serious problems with parallelism. I do not understand how to use parallelism. I've read the lesson in my textbook and I've looked at different websites that help explain it, but I just can't get it. Can anyone break this down in "layman's

108. ## maths

Michelle is making a scale drawing of a building. The scale for the drawing is 1 inch = 6 feet. The height of the building in the drawing is 7 1/4 inches. Determine the height of the actual building.

109. ## Algebra 2

Evaluate the expression. Assume (m is not equal to 0) m‚0. m0=?. Simplify your answer. "Sorry, I can't get the "not equal to", sign to print in. I hope you know what i'm talking about. Thank you for your help.

110. ## Algebra 1-Matrix

In a certain county the proportion of voters in each age group registerd as Republicans and Democrats or Indpendence is given by the following matrix which is called A. 18-30 31-50 Over50 Republican 0.40 0.30 0.70 Democrat 0.30 0.60 0.25 Indpendent 0.30

111. ## world history

I need a list of Physical features Marco Polo would have seen on his journeys.

112. ## Religious Studies and Ethics

I am trying to write a little paragragh on RS, the subject and I need to write about the many siginificant discoveries that have been really helpfyul in the past 100 years or in recent years. I just need some ideas.

A suitcase of weight mg = 450 is being pulled by a small strap across a level floor. The coefficient of kinetic friction between the suitcase and the floor =0.640 a) Find the optimal angle of the strap above the horizontal. (The optimal angle minimizes the

114. ## Physics

When a mass of 28 g is attached to a certain spring, it makes 18 complete vibrations in 4.1 s. What is the spring constant of the spring? Answer in units of N/m.

115. ## algebra

Find the center and radius of a circle (x+1)2 + (y-3)2

116. ## physics

A slab of copper of thickness b = 1.566 mm is thrust into a parallel-plate capacitor of C = 4.00×10-11 F of gap d = 10.0 mm, as shown in the figure; it is centered exactly halfway between the plates. If a charge q = 3.00×10-6 C is maintained on the

117. ## Physics

A tube with a length L is closed at both ends and is filled with air. The wavelength of the fundamental mode of this tube is given by L*c, where c is a dimensionless constant. What is this constant, c, numerically? Also, the frequency of the first overture

118. ## math

What is the maximum number of glass tumblers each with a circumference of inches that can be placed rectangular on a table of 48" x 32". (a) 48 (b) 32 (c) 50 (d) 96

119. ## Algebra

Can this be solved? x+y=160 x=4y+9

120. ## math

Need help with negation using demorgan law. ~(a and ~b) I have ~a and b Is that correct?

121. ## English

Can you please check my sentences? Thank you very much. 1) Hamlet makes some soliloquies. The oak, along with the mistletoe, was the most important sacred tree to the Celts. 2) Most Druids were women. 3) In a revenge tragedy usually appears a ghost who

122. ## pre calculus

let f(x)= -x^2 - 1. evaluate f(x)at x=6, -6

123. ## Physics

A Force,F=10N,applied at an angle of 37 degree above the horizontal,moves a crate a distance of 5m along a rough horizontal surface.A frictional force of 5N opposes the motion.what is the change in kinetic energy?

124. ## social studies

I need a copy of the florida studies weekly for week 16. I tried to find the magazine online and cant. Do you know of any web site that might have it so I can read it and answer the questions?

125. ## Music

List at least 2 similarities and 4 differences found through comparing the music, the music traditions, performing, etc., of Europe and Sub-Saharan Africa.

127. ## math

Use each of the integers 1-9 exactly once in any order to write a numerical expression equal to 2011. An integer may be written as an exponent, and the operations of addition, subtraction, multiplication, and divisions as well as grouping symbols may be

128. ## math

f(2n)=n+f(2n-2) and f(2)=1. determine f(20)

129. ## Geography

Is the smallest country in Africa Equatorial Guinea? Or could it possibly be Djibouti?

130. ## Math

circles P and Q are externally tangent at T. Horizontal lines l and m are, respectively, tangent to circles P and Q at R and S. Show that RT must contain S.

131. ## Math

Penelope bought 17 large packs and 5 small packs of identical pens. When she got home, her little sister opened all of the packages on the floor. If a total of 234 pens were on the floor, how man pens did a large pack contain?

132. ## Mathematics, physical, science agricultural science, life science english

What it means to be a grade 12 learner?

133. ## math

any two cubic number that when added toghether gives anothere cubic number a^3+b^3=c^3. find a,b&c

134. ## PHYSICS

1....How much force needed to bring a 3200 lb car from rest to a velocity of 44 m/s in 8 sec.? 2....A ball with a mass of 2 kg move to the right with a speed of 2 m/s. It hits a ball of mass 0.50 kg which is at rest. After collision the second ball moves

135. ## math

a^3+b^3=c^3...find a,b&c anyone who can help me before 6pm i promise R200

136. ## geometry

If a chord 10 inches long is 5 inches from the center of a circle, find the radius of the circle.

137. ## algebra

did I do this correctly? 7v-49 v-7 25 / 15 525v^2-35v-147 75v

138. ## algebra

v^2-36 6 -v my answer (v+6)(v^2-6y+36 6v

139. ## algebra

LCM x^2+16x+49x^2-35 =-35 Is this the correct answer

140. ## physics

A boy can throw a ball a maximum horizontal distance of R on a level field. How far can he throw the same ball vertically upward? Assume that his muscles give the ball the same speed in each case. (Use R and g as appropriate in your equation.)

141. ## algebra

36x^12 40x^8 I came up with 4x^8

142. ## algebra

I'm really bad with monomial expressions. Can someone please help? Is 7(m - 2) a monomial expression? yes or no Is 3mnp a monomial expression? yes or no

144. ## Algebra again. Help

Evaluate (wx)-4 if w = -3 and x = -4 is the answer: 1 over 144? Thanks in advance!

145. ## physics

a wieght of one kg is raised through a distance of .8 mtr against gravity in the up ward direction from 1.5 mtr to 2.3o mtr.how much energy is burnt in joules or cal.

asked by ajmer singh sidhu ludhiana

what is he probilty of rolling a dice and get a 5 if you rol it 5 time

147. ## math

A single die is rolled once. What are the odds against rolling a prime number?

148. ## Algebra

5 (x + 3) + 6 < 3 (x - 2) + 5 Help sove with all the steps

149. ## physics

Calculate pressure if force is 5N in an area of 1m.sq.

150. ## Math 209

Draining the vat. With only the small valve open, all of the liquid can be drained from a large vat in 4 hours. With only the large valve open, all of the liquid can be drained from the same vat in 2 hours. How long would it take to drain the vat with both

151. ## elementary math

1100two+101two=

152. ## Finance Homework/ Have 2nd Part Need Calculate1st

An investment will pay \$100 at the end of each of the next 3 years, \$400 at the end of Year 4, \$600 at the end of Year 5, and \$700 at the end of Year 6. If other investments of equal risk earn 8% annually, what is its present value? What is its future

153. ## Finance Homework

Washington-Pacific invests \$2 million to buy a tract of land and plant some young pine trees. The trees can be harvested in 15 years, at which time W-P plans to sell the forest at an expected price of \$4 million. What is W-P's expected rate of return?

154. ## AP physics

A water skier, moving at a speed of 8.61 m/s, is being pulled by a tow rope that makes an angle of 34.9 ° with respect to the velocity of the boat. The tow rope is parallel to the water. The skier is moving in the same direction as the boat. If the

155. ## AP physics 2

You are moving into an apartment and take the elevator to the 6th floor. Suppose your weight is 790 N and that of your belongings is 1080 N. (a) Determine the work done by the elevator in lifting you and your belongings up to the 6th floor (15.2 m) at a

156. ## Math

An advertisement is to contain 75 sq.cms of printed area. There is a 2cm margin at the bottom, 3cm margin in each side and no margin at the top. Find the dimensions of the smallest possible poster.

157. ## physics

A small archerfish (length 20 to 25 cm) lives in brackish waters of Southeast Asia from India to the Philippines. This aptly named creature captures its prey by shooting a stream of water drops at an insect, either flying or at rest. The bug falls into the

158. ## MATH

Prove that the correlation coefficient r lies between -1 and +1.

159. ## math 156

find the sum 13/14+4/5

160. ## economics

Which of the following is given as a reason for nations NOT to engage in free trade? A) Free trade gives consumers access to goods they might not otherwise be able to consume B) Tariffs are a good source of revenue for a nation C) Trade is shown to promote

161. ## FP/101 FOUNDATIONS OF PERSONAL FINANCE (AXIA)

1) What type of mortgage loan has a fixed rate, fixed term and fixed payment?

162. ## physics

Tarzan tries to cross a river by swinging from one bank to the other on a vine that is 9.0 m long. His speed at the bottom of the swing is 8.8 m/s. Tarzan does not know that the vine has a breaking strength of 1.0 103 N. What is the largest mass that

163. ## physics

Tarzan tries to cross a river by swinging from one bank to the other on a vine that is 9.0 m long. His speed at the bottom of the swing is 8.8 m/s. Tarzan does not know that the vine has a breaking strength of 1.0 103 N. What is the largest mass that

164. ## physics

An enemy ship is on the east side of a mountain island, as shown in the figure. The enemy ship has maneuvered to within d1 = 2153 m of the h = 1690 m high mountain peak and can shoot projectiles with an initial speed of vi = 247 m/s. If the western

165. ## Health,Nutrition, and safety

What is the overall wellness of young children and the role and early childhood education setting can play in ayoung children and well-being.

166. ## Social Psychology

Discuss how confirmation bias can influence perceptions and how some beliefs can actually generate their own confirmation in 200 to 300 words. Provide relevant examples to support your explanation.

167. ## physics

A fisherman sets out upstream from Metaline Falls on the Pend Oreille River in northwestern Washington State. His small boat, powered by an outboard motor, travels at a constant speed v in still water. The water flows at a lower constant speed vw. He has

168. ## acid vs base

Calculate the pH of a solution that obtained by diluting 0.015 mol acetic acid with water to 250 cm3 (the Ka - value for acetic acid is 1.74 x 10-5 M).

169. ## math

Do you think that the formula p = 6n + 1 where n is a whole number, will produce a prime number more than 50% of the time?

170. ## english

I was given an assignment to write a one paragraph essay. I need you to pls help me with my essay on "the sniper" by liam o'flaherty. you can tell me where i went wrong and anyother thing. This is my essay so far: War knows no boundaries(age, sex, location

171. ## Geometry

Which shows the correct coordinates for the reflection of the point over the line y = -4 a. (-6,9)->(-6, 17) b. (-6,9)->(6,-17) c. (-6,9)->(-10,-9) d. (-6,9)->(2,-9) I how to reflect over a line. Can you help me please?

172. ## mat/117

can some one help with this polynomial. (C -5)-^2

173. ## Algebra 1

Use Cramer's rule to solve the system. -2x - 2y = -16 2x + 3y = 23

174. ## physics

A truck loaded with cannonball watermelons stops suddenly to avoid running over the edge of a washed-out bridge (see figure). The quick stop causes a number of melons to fly off the truck. One melon rolls over the edge with an initial speed vi = 12.0 m/s

please help I can not understand this. I need an implicit form answer for the general solution of differential equation dy/dx=2(e^x-e^-x)/y^2(e^x+e^-x)^4 with (y>0). I have separated the y^2 to the left hand side to become 1/3y^3 but have no idea how to

176. ## physics

An astronaut on the surface of Mars fires a cannon to launch an experiment package, which leaves the barrel moving horizontally. Assume that the free-fall acceleration on Mars is three eighths that on the Earth.(a) What must be the muzzle speed of the

177. ## physics

As some molten metal splashes, one droplet flies off to the east with initial speed vi at angle θi above the horizontal, and another droplet flies off to the west with the same speed at the same angle above the horizontal, as inthe figure. In terms of vi

178. ## Chemistry

How many total moles of ions are released into water when 0.50 moles of calcium perchlorate are dissolved in a liter of water?

179. ## jj

Find the percent of increase or decrease. Round your answer to the nearest percent. Original Amount: \$6.50, New Amount: \$11.50, Percent of Change: ___%

180. ## physics

A fireworks rocket explodes at height h, the peak of its vertical trajectory. It throws out burning fragments in all directions, but all at the same speed v. Pellets of solidified metal fall to the ground without air resistance. Find the smallest angle

181. ## physics

A Coast Guard cutter detects an unidentified ship at a distance of 16.7 km in the direction 13.8° east of north. The ship is traveling at 24.9 km/h on a course at 39.2° east of north. The Coast Guard wishes to send a speedboat to intercept the vessel and

182. ## science

what is the periodic table

183. ## Chemistry-Practical Applications

What are some practical applications of London dispersion forces? And the rule like dissolves like besides making antichap lipstick? Thank you!

184. ## calc

f(x)=6(sin(x))^x, find f'(1). and f(x)=3x^ln(x), find f'(9). i tried these so many times and it keeps telling me that my answers are wrong :/ for the first one i did f'(1) = 6sin(1) * {ln[sin(1)] + cot(1)}., is that correct, when i put it in my calculator

185. ## Geography check

I have to answer the question this african country is a world leader in coffee and cacao exports. The answer is Cote d'Ivore or Ivory Coast, correct?

186. ## Trig

find the exact value of the expression using the provided information. Find Tan (S+T) given that cos s=1/3 with s in quad I and sin T= -1/2 with T in quad IV

187. ## Calculus

Find an equation of the tangent line to the graph of the function f defined by the following equation at the indicated point. (x - y - 1)3 = x; (1, -1)

188. ## chemistry

Write down the correct mechanism for the reaction between 3-methyl-2-pentene and HCL?

189. ## Language Art

I'm writing an essay and the topic is " Should student be able to go on dangerous field trip like rock climbing?" I'm disagreeing to this and I need 3 reason why. These are my 2 reason, could anyone give me another 3 or just 1? Thanks - Students will be

190. ## grammar

Which is correct? 1. What did you do on the winter break? or 2. What did you do on winter break? I believe #2 is correect because the `the` is not needed. However, I cannot find a clear rule to support this. Please advise. James