# Questions Asked onOctober 5, 2011

1. ## physics

A certain orthodontist uses a wire brace to align a patient's crooked tooth as in the figure below. The tension in the wire is adjusted to have a magnitude of 21.12 N. Find the magnitude of the net force exerted by the wire on the crooked tooth.

2. ## Physics

A skateboarder shoots off a ramp with a velocity of 6.7 m/s, directed at an angle of 53° above the horizontal. The end of the ramp is 1.0 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically upward, and take as the

3. ## chemistry

a)H2SO4 b)CuS c)HF d)Zn(NO3)2 Which are strong, weak, or non electrolytes. I was think A was strong B and C were weak and D is non

4. ## Stoichiometry

So I have this question it reads Consider the generic chemical reaction How many moles of B are required to completely react with 2A + 3B ==> 3C 1. 6 mol of A 2. 2 mol of A I won't put them all just guide me in the right direction please

5. ## Physics

A woman at an airport is towing her 20.0 kg suitcase at constant speed by pulling on a strap at an angle θ above the horizontal. She pulls on the strap with a 35.0 N force, and the friction force on the suitcase is 20.0 N. a) What angle does the strap

6. ## Statisics

35%of adult Americans are regular voters. A random sample of 250 adults in a medium-size college town were surveyed, and it was found that 110 were regular voters. Estimate the true proportion of regular voters with 90% confidence and comment on your

7. ## science chemistry

N2 (g) + 3H2 (g) -> 2NH3 (g) assume 4 molecules of nitrogen and 9 molecules of hydrogen are present. after complete reaction, how many molecules of ammonia are produced. do i go from N to NH3 or H to NH3?

8. ## Chemistry(please check, thank you!!)

Is this equation balanced? CoCl2(aq) + Na2CO3(aq) -> CoCO3(s) + 2NaCl(aq) I think that it is because there is 1 Co on the left and 1 on the right. There is 2 cl on the left and 2 on the right. 2 Na on the left and 2 on the right and 3 CO on left and on

9. ## Math word problem(algebra)

Carol is y years old&her daughter is 25 years younger.Find Carol's present age if the sum of their ages in 6years' time is 75years

10. ## maths

the 3rd term of a g.p is 63 while the 5th term is 567,what is the sum of the first 7 terms

11. ## physics

A tractor T is pulling two trailers, M1 and M2, with a constant acceleration. T has a mass of 200 kg, M1 has a mass of 100 kg, and M2 has a mass of 150 kg. If the forward acceleration is 0.60 m/s2, then the horizontal force on the tractor due to the

12. ## statistics

A random sample of state gasoline taxes in cents is shown here for 12 states. Use the data to estimate the true population mean gasoline tax with 90% confidence. Does you interval contain the national average of 44.7 cents? 38.4 40.9 67 32.5 51.5 43.4 38

13. ## Critical thinking

Explain the relationship between informative, explanatory, and persuasive statements and critical thinking.

14. ## math

Find two numbers the exact answer is between. 3 X 567

15. ## chemistry

Tin metal is heated with oxygen gas to yield tin(IV) oxide. Express your answer as a chemical equation. Identify all of the phases in your answer

16. ## trig

in a circle of radius 26, find the length of the arc spanned by a central angle of pi/4 radians. round your answer to 2 decimal places. use 3.1416 as an approx for pi.

17. ## USA PoliScience - HELP FAST

When the Fed was created in 1913, a. it had no role in the management of the nation's economy. b. it was restricted to providing emergency loans to financial institutions. c. it adhered to a strictly supply-side policy focus. d. its primary economic

18. ## Geometry

B is the midpoint of segment AC. AB= 5X and BC =3X+4 find AB, BC and AC

19. ## Algebra word problem

There are 50 questions to answer in a triva contest. Each player starts with 100 points. He or she earns ten points for each correct answer but will lose four points for each incorrect answer. Each player must answer all 50 questions. What is the fewest

20. ## Math

Given that cos 13pi/18=sin y, first express 13pi/18 as a sum of pi/2 and an angle, and then apply a trigonometric identitiy to determine the measure of angle y.

21. ## plz help me in physics

A ship leaves the island of Guam and sails a distance 295km at an angle 35.0 north of west. a:In which direction must it now head so that its resultant displacement will be 100km directly east of Guam? (Express your answer as an angle measured south of

22. ## math

a ferris wheel has the diameter of 240 feet and the bottom of the ferris wheel is 9 feet above the ground. find the equation of the wheel if the origin is placed on the ground directly below the center of the wheel

23. ## chem

2H2(g)+ O2(g) --> 2H2O(L) I know the oxidizing agent is oxygen and the reducing agent is hydrogen. what are the number of electrons transferred in the balanced chemical equation? (I put 2 and tried -2 but it didn't seem right)

24. ## physics

A motorist drives south at 26.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.40 min, and finally travels northwest at 30.0 m/s for 1.00 min. For this 6.40 min trip, find the following values.

25. ## Physics

A sprinter can accelerate with constant acceleration for 2.70 s before reaching top speed. He can run the 100-meter dash in 10 s. What is his speed as he crosses the finish line? Please show me all the steps to solving this problem. Thanks

26. ## Spanish

Please check my questions I had to answer-1.¿Cómo es tu animale favorito? Mi animale favorito es le cabello. 2. ¿Es la araña mejor o peor que el mosquito? La araña es más peor que el mosquito. 3. ¿Son los venados más rapidos or más lentos que los

27. ## Kirksville RIII

What will be the ionic equation after nickel nitrate is allowed to stand for several months

28. ## Physics

what equation would I use to find the magnitude of the mass's velocity?

29. ## Organic chemistry

You are at isoelectric point for a solution of Leucine. If the number of negatively charged carboxyl ate groups, -COO-, is 1x10^19, how many positively charged amino groups, NH3+, would there be?

30. ## early childhood education

which of the fllowing is most likely to be a result of a school age child left unattended at home a)obesity b)lost of friendship c)psychological harm d)inability to complete homework assignments my answers is a

31. ## Algebra 2 (Linear Programming)

Part A requires 4 hours per unit on a lathe and 3 hours per unit on a milling machine. Part B requires 2 hours per unit on a lathe and 5 hours per unit on a milling machine. 52 hours are available on the lathe and 60 hours are available on the milling

32. ## chemistry 12

A) Calculate [OH^-] in a o.12 M solution of hydrazine, H2NNH2(aq), having K of 3.0x10^-6. B) what is the percent ionization of the H2NNH2(aq) I can't get these for the life of mee!

33. ## Federal Reserve System

I read this on Wikipedia.. The Federal Reserve System is a part of government that regulates the private banks And I am stuck at this question. The Federal Reserve System c. regulates only national banks. e. None of these answers is correct.

34. ## science

A pound of body fat stores an amount of chemical energy equivalent to 3500 Cal. When sleeping, the average adult burns or expends about 0.45 Cal/h for every pound of body weight. How many Calories would a 170 lb person burn during 10 hours of sleep? (Note

35. ## MATH QUIZ

Round each number to the underlined place value. 1.) 15.6571 -->5 is underlined 2.) 0.8914 -->1 is underlined 3.) 7,022.56 -->3 is underlined 4.) 345.678 -->6 is underlined Estimate. 5.) 3.7 · 8.06 about 32 about 27 about 12 about 24 6.) 17.25 + 6.66

36. ## Physics

a crate slides down a frictionless ramp with an angle of 29.5 above the horizontal. find the acceleration of the crate.

37. ## math

By using the table in the handbook, the present value of \$12,000 for six years compounded at 6 percent semiannually is: (Points : 2)

38. ## Stoichiometry

Consider the reaction between reactants S & O2 2S(s) + 3 O2(g) ==> 2 SO3(g) If a reactant vessel initially contains 5 mol S and 9 mol O2, how many moles of S, O2 and SO3 will be in the reaction vessel once the reactants have reached as much as possible?

39. ## Physics

A truck is stopped for a red light at Ridge Road on Higgins line. At the instant the light turns green, the truck pulls away with a constant acceleration of 3.3 m/s2. A cyclist approaching the truck with a constant velocity of 12.0 m/s is 8.60 m behind the

40. ## Spanish

Please check my questions I had to answer-I'm not sure about number one and I really don't understand number 3 1.¿Como es tu animale favorito? Mi animale favorito es le cabello. 2. ¿Es la araña mejor o peor que el mosquito? La araña es más peor que el

41. ## calculus

Find constants a and b in the function f(x)=ax^b/(ln(x)) such that f(19)=1 and the function has a local minimum at x=19. What is a and b?

42. ## AP English

What kind of effects do extended metaphors, or conceits have on readers? I know it can help to keep a readers attention, and develop the idea.

43. ## Government US

Democrats in Washington have usually responded to high levels of unemployment with b. increased government spending. c. increased government taxes. d. decreased government taxes. e. decreased government regulation.

44. ## Physics

Tim and Rick both can run at speed Vr and walk at speed , Vw with Vr > vw. They set off together on a journey of distance . Rick walks half of the distance and runs the other half. Tim walks half of the time and runs the other half. How long does it take

45. ## Chem

Living things require oxygen for respiration. Fuels require oxygen for burning. Air contains much more nitrogen than oxygen. Is it a good thing to have more oxygen than nitrogen in air? Explain your answer.

46. ## USA PoliScience

In forming Medicare, a. President Johnson allowed conservatives to propose a program, knowing it would ensure passage by Congress. > This is probably not correct because congress was never so easy. b. President Johnson resisted some Democratic urging to

47. ## physics

A car moving 17 m/s slows down at a uniform rate of 2.6 m/s2. How far does the car travel in 3.3 seconds?

48. ## accounting

andrew quits his job as an accountantwhere he earns \$45000 per year to go back to scool for 2 years to get an NBA degree. He attends a school that charges \$25000 per year for tuition & related expenses. How much is the total cost (explicit plus

49. ## English

I just wanted to know if it is better to include "the" or not in How was (the) Eizabethan theatre structured. Here are other questions I'd like yout to check. 1) When and where did the Aesthetic Movement originate? Describe how the aesthetes lived and what

50. ## ms.sue

it's like we're pen pals.you are very smart.what school do you go to and how old are you?i want to know that what should you do when you are fighting with your best friend,you haven't been talking to her for about 9 days.You are the one who always says

51. ## holley redemer

restate the sentence Annually, millions of animals suffer and die in painful tests in order to determine the safety of cosmetics.

52. ## spanish

why are these incorrect? 1. Su novio no gusta los niños. 2. Este profesor dijo a nosotros que el ejercicio no es bien. 3. Tu éxito depende en el esfuerzo que pongas. 4. He esperado por mi hermana durante horas. 5. No puedo entrar la casa.

53. ## Physics

In a portable deﬁbrillator, energy is stored in a capacitor charged to a high potential diﬀerence. The capacitor is discharged through the patient’s body in a short, high-powered pulse. a) The capacitor in a portable deﬁbrillator is charged to 5000

54. ## chemistry ASAP

calculate the average atomic mass of element x in which the first isotope found in 28.5% abundance weighs 200.0 amu and the other isotope weighs 220.0 amu.

55. ## higher math

what is the distance between the point A(3,8) and the circle (x^2+y^2+4x-6y) is equal to 12

56. ## Math Help

Express in scientific notation: 198,400,000,000

57. ## science

I can't understand why a ball bounces many time before coming to a rest

58. ## chemistry ASAP

calculate the average atomic mass of element x in which the first isotope found in 28.5% abundance weighs 200.0 amu and the other isotope weighs 220.0 amu.

59. ## science

What I can include in a science brochure for a trip to Mars to sound more attractive?

60. ## Chemistry

What is the final temperature after a 21.8 g piece of ice is placed into a styrofoam cup containing 114 g of hot water at 68.2 degrees C. Please explain because I don't even understand how to start.

61. ## Math

I Don't Know What Is This Subject Called In English But It's About Complex Numbers it says 25 = 16 - 9 i^2 = (4 ± 3i) But My Teacher Says 25 = 25 - 0 i^2 = (5 ± 0i) I Think My Teacher Is Wrong , The Result Is 25 But There Will Not Be Complex Number

62. ## chemistry

how many grams of naOH must be dissolved to a total volume of 800 mL, if the desired molarity is 0.200 molar?

63. ## Math

The area of a rectangular photograph is 59 square inches.It is to be mounted on a rectangular card with a boarder of 1 inch at each side and 2 inches at the top and bottom.Express the total area of the photograph and the boarder,A, as a function of the

64. ## English

Hi, I have to write a 2 page paper about the book No-No Boy, rather than give a plot summary the teacher wants us to discuss important themes. What are some possible topics I could write about and how do I not make the paper turn into a plot summary?

65. ## chemistry

150 mL of a 4.00 molar NaOH solution is diluted with water to a new volume of 1.00 liter. What is the new molarity of the NaOH?

66. ## Physics

The strength of gravity on Mars is only 40% of that on earth. If a child has a mass of 30 kg on earth, what would the child's weight be on Mars? . I came up with 120N is this right?

67. ## physics

A STONE IS DROPPED FROM A CLIFF SOME HIGH. DISREGARDING AIR RESISTENCE, (a) HOW LONG DOES IT TAKE THE STONE TO REACH THE GROUND? (b) WHAT IS ITS SPEED WHEN IT STRIKE THE AROUND?

are there some tutors available in person, before school this morning to help my daughter Valerie Garza?

69. ## trig

Triangle PQR is congruent to P'Q'R. If PQ= x+y, P'Q'+10, Q'R'= 3x-y, and QR=14, then what is x and y?

70. ## trig

Solve sin ¥è = -0.204 for 90¨¬ < ¥è < 270¨¬. Give your answer to the nearest tenth of a degree.

71. ## Finance

John deposited \$1000 on 1st January 2011 in an account paying interest of 12% per annum compounded quaterly. He also deposited \$800 (on 1st January 2011) in another account which pays 15% per annum effective interest. Find the time(n) when the two accounts

72. ## Physics

a car traveling westward at 20 m/s turns around and travels eastward at 5 m/s. what is the change in velocity of the car?

73. ## chemistry

how many moles of CO2 are produced if you start with 3 mol of CaCO3? balanced equation is: CaCO3--->CaO=CO2

74. ## chemistry

what are the phases of all the reactants and products in the reaction 2Al + Fe2O3--->2Fe + Al2O3?

75. ## physics

Two workers pull horizontally on a heavy box, but one pulls twice as hard as the other. The larger pull is directed at 25.0 west of north, and the resultant of these two pulls is 560.0 directly northward.

76. ## Statistics

Compare the 95% and 99% confidence intervals for the hours of sleep a student gets. Explain the difference between these intervals and why this difference occurs. 95% confidence intervals: 6.214, 7.686 99% confidence intervals: 5.944, 7.956

77. ## Calculus

Find the equation of the tangent line to the curve below at point (0,3) y=6/(1+e^-x)

78. ## Statistics

Compare the 95% and 99% confidence intervals for the hours of sleep a student gets. Explain the difference between these intervals and why this difference occurs. 95% confidence intervals: 6.214, 7.686 99% confidence intervals: 5.944, 7.956

79. ## Physics

A hovercraft of mass 69.0 kg can move on a horizontal surface, the x-y plane. A single unbalanced force acts on the hovercraft, but the size of the force is unknown. The hovercraft initially has a velocity of 5.0 m/s in the positive x direction and some

80. ## science

list three ways in witch finding the main idea(s) can help you understand scientific articles.

81. ## Writing Essay

Where will you find the thesis sentence in an introduction paragraph? A.The middle of the paragraph B.Immediately after the topic sentence C.The last sentence of the introduction paragraph. i got C.

82. ## Finance

Equipment cost \$625,000, salvage value \$50,000 at end of 10 yrs. Probability .15 Cash Flow \$60,000, .25 \$85,000, .45 110,000, .15 130,000 What is expect cash flow, How do I stretch out for 10 years do I multiply about out get that total and get PV from

83. ## algebra

i cant figure this out 16 / (10-(9-8) x 6) i got 9-8 = 1 x6 = 6 10 -6 = 4 16 /4 = 4 is that right?

84. ## Calculus

Find dy/dx by implicit differentation. ysin(x^2)=-xsin(y^2)

85. ## Chemistry

132. Aerosol cans carry clear warnings against incineration because of the high pressures that can develop upon heating. Suppose a can contains a residual amount of gas at a pressure of 755 mm Hg and a temperature of 25 °C. What would the pressure be if

86. ## Physical Science

Can someone please help me with this question Im not really sure what the question is asking, I don't understand at all. Please explain. With sound, you get harmony when the frequencies of two sounds are in the ratios of small integers - eg, two sounds

87. ## Algebra

how do i solve 3x +8 > 2

88. ## social studies

Ms. Sue I thought you were helping me yesterday...I still need some help the information you give me I have been typing up as notes so i can print them and then study them.

89. ## Math

On Friday, Jan hiked in the woods. If she hiked a vertical distance of 60 meters relative to sea level and then down 86 meters, where would she be relative to sea level if she started at 0?

90. ## Physical Science

What is the frequency of electromagnetic radiation that has the same wavelength as the sound waves of middle C on a piano? A) 1.1 x108 Hz B) 2.2 x108 Hz C) 4.4 x108 Hz (my answer am I correct) D) 6.6 x108 Hz

91. ## Pre-Calculus

From a point on the ground 25 ft. from the foot of the tree, the angle of elevation of the top of the tree is 32 degrees. How do you find the height of the tree to the nearest foot?

92. ## Math

On Friday, Jan hiked in the woods. If she hiked a vertical distance of 60 meters relative to sea level and then down 86 meters, where would she be relative to sea level if she started at 0?

93. ## english

Character can be portrayed by direct exposition. true or false?

94. ## nursing

What are some processes for applying nurse-sensitive performance reviews and quality indicators? How can these processes be best implemented? What is their effect on nursing research and practice?

95. ## physics

You pull your little sister across a flat snowy field on a sled. Your sister plus the sled have a mass of 39 kg. The rope is at an angle of 39 degrees to the ground. As you pull with a force of 31 N, the sled travels a distance of 47 m.

96. ## physics

You pull your little sister across a flat snowy field on a sled. Your sister plus the sled have a mass of 39 kg. The rope is at an angle of 39 degrees to the ground. As you pull with a force of 31 N, the sled travels a distance of 47 m.

97. ## physics

You pull your little sister across a flat snowy field on a sled. Your sister plus the sled have a mass of 39 kg. The rope is at an angle of 39 degrees to the ground. As you pull with a force of 31 N, the sled travels a distance of 47 m.

98. ## Psychology

I have to examine at least two mental disorders and two mental illnesses from the perspective of psychology. Do you know of any sites that can help me with this. Thank you.

99. ## math

Marie used base-ten blocks to model 328 she used 3 hundreds, 2 tens, and 8 ones. for what could you trade one of the tens?

100. ## prealgebra

In solving this equation (x+3)(x-3)=-8 is the answer x+3=-8=>x=-11 if not why?

Let r= 3-3 sin θ How do I test for symmetry θ = π/2?

102. ## pre cal

Find f of g of h and state the exact domain. f(x) = sqrt x g(x)= e^x - 13e^x/2 + 42 h(x) = 2x I need help on this one bad! Please help!

103. ## PHYSICAL SCIENCE

density of a sample of zinc that has a mass of 48 kilograms and a volume of 7.5 mL.

104. ## Math

what are constant ratios?

105. ## chemistry

balnced equation CaCO3-->CaO+CO2 how many moles of CO2 are produced if you start with 3 mol of CaCO3?

106. ## Calculus

2^3V4(2^3V54-^3Vx) is equal to 16, then x is equal to... I simplified the 2^3V4 and got 64, and just got stuck.

107. ## math

How many factors does 7^11*19^6*79^23 have?

108. ## Algebra word problem/Splitting the Cost

The cost of renting a bus to go snowboarding was split evenly by the 20 students planning to go. The day before the trip, 10 more students decided to go. Dividing the cost evenly among all 30 students brought the average cost down by \$9.00 per person. What

109. ## biology

plzzzz,write differences between vegetative propagation and artificial vegetative propagation.(at least five)

110. ## Chemistry

I can't figure out how to set up this problem...You have a large amount of 8.00 M stock solution. You need 1.80L of 3.00 M solution for an experiment. How would you prepare the desired solution without wasting any stock solution?

111. ## physics

Tom & !@#\$%^& are 25 m apart at rest. Tom accelerates at 5 m/s/s towards !@#\$%^&. 0.21 sec later !@#\$%^& accelerates 6 m/s/s towards Tom. Where do they meet, how fast is each traveling when they meet, and when do they meet?

112. ## history

I am helping my son who is in the 6th grade. He has a crossword puzzle that relates to early civilization and the clue is different. We have this much so far ???e??? for a total of 7 letters with an e in the middle please help.

a+3a=36

114. ## physics

A diver of mass 43.2 kg jumps off a high dive 10.0 m tall. If he comes to a stop 2.0 m below the surface of the water, what was his acceleration after he entered the water?

115. ## USA PoliScience

36. The Federal Reserve System c. regulates only national banks. e. None of these answers is correct. I am confused between my last two choices.

116. ## Calculus

Solve for x. Don't do the work using algebra and don't use a calculator. The Laws of Logarithms will be helpful. ln(x^2 - 1)= 3

117. ## STATISTICS

Four people(North, South, East, West) are each dealt 13 cards from an ordinary deck of 52 cards. a. If South has exactly one ace, what is the probability that his partner North has the other three aces? b. If North and South together have 10 hearts, what

118. ## Math

Students are given three chances to pass a basic skills exam for permission to enrol in Calculus. Sixty percent of the students pass on the first try, of those that fail on the first try, fifty four percent pass on the second try, and of those remaining,

119. ## math

Two digits of this number were erased: 273*49*5. However, we know that 9 and 11 divide the number. What is it?

120. ## physics

a ball is dropped from a tower 122.5meters tall. how long does it take the ball to reach the ground?

121. ## Hard math

Solve for x using the laws of logarithms. ln(ln x)= 1

122. ## Algebra

What isthe focus of the parabola y = (1/8)(x – 5)^2 - 3

123. ## geometry

Tim and Beck have a model of a car which they want to duplicate. Tim uses a compass and straightedge to take exact measurements to make a replica. Beck makes the model freehand without the use of tools.

124. ## geometry

Out of the word Tennessee 9 pieces of paper with each letter of the word written on it are put into a hat. What is the probability that that letter T or N is selected?

125. ## Math

Lilly wrote the equation below to demonstrate the commutative property. (2+3)+(3+4)=(3+4)+(2+3) Does her equation demostrate the commutative property?Explain why or why not.

126. ## Cal

Express the given quantity in a single logarithm. ln(a + b) + ln(a - b) - 2 ln c

127. ## math

6 people, one-half of the students arrive at school early, one-fourth of the students arrived on time, and one-eighth of the students arrived late. how many students were absent?

128. ## Geometry

If the measures of the exterior angles of the acute angles of a right triangle are (6x+23) and (4x+17), find the measures of the acute angles.

129. ## MATH(STATISTICS)

Urn A contains R red balls and W white balls, urn B contains r red balls and w white balls. a.If an urn is selected at random and a ball drawn, what is the probability that the ball is red? b.If a ball is drawn from urn A and put into urn B, and then a

130. ## physics

Students in lab measure the speed of a steel ball launched horizontally from a table top to be 4.2 m/s. If the table top is 1.2 m above the floor, where should they place a 20 cm tall tin coffee can to catch the ball when it lands?

131. ## Physics

A .45 kg shuffleboard puck is given an initial velocity down the playing surface of 4.5 m/2. If the coefficient of friction between the puck and the surface is .2, how far will the puck slide before coming to rest?

132. ## English

I have to research Sopocles and I'm stuck on a few of these statements about him: 1.I think he won more first place prizes for his plays than any other playwright in history, correct? 2.I think he was a priest, correct? 3.This one I'm stumped on and I've

what sentence can i write using the words audience and menorah

134. ## geography

What problems might exist in the Western Cordillera region for farming and transportation?

135. ## statistics

what is the inter quartile range of a set of numbers adding to to 76

136. ## Algebra Splitting the Cost

The cost of renting a bus to go snowboarding was split evenly by the 20 students planning to go. The day before the trip, 10 more students decided to go. Dividing the cost evenly among all 30 students brought the average cost down by \$9.00 per person. What

137. ## MATH(Statistics)

Students are given three chances to pass a basic skills exam for permission to enrol in Calculus. Sixty percent of the students pass on the first try, of those that fail on the first try, fifty four percent pass on the second try, and of those remaining,

138. ## trig

Solve for ¥è in the equation tan ¥è = 2.42 when 180¨¬ < ¥è < 360¨¬. Round your answer to the nearest tenth of a degree. (Enter only the number.)

139. ## MATH QUIZ

Round each number to the underlined place value. 1. 15.6571 --> the underlined word is 5 2.

140. ## geometry

how do we know 7,4,5 are the sides of triangle

141. ## Physics

An object is dropped from rest. What is its instantaneous speed when it has been in motion for 5 s? The acceleration of gravity is 9.8 m/s2 . Answer in units of m/s

142. ## math

kenneth has 22 math problems to do for homeworks he has 12 problems done. How many more problems does he have left? If he completes 1 problem every minute, how many more minutes does he have to work?

143. ## Chemistry

when doing a lab experiment on limiting reagents for CoCl2 there is a chart to fill out that says to find the concentration of test tubes 1-6, find the volume delivered and find the moles of CoCl2. How would I find the moles of CoCl2 for each test tube?

144. ## Math(Statistics)

A certain soccer team wins (W) with P(W)= 60%, loses(L) with P(L) = 30%, and ties (T) with P(T) = 10%. The team plays three games over the weekend. a.Determine the elements of the event A that the team wins at least twice and does not lose. b.Find P(A)

145. ## geometry

find the area of the sector with 80 degree angle and radius=8

146. ## English

Hi I'm writing an essay about No-No Boy. Does the following sentence sound alright, if not how do I make it sound better. Two significant problems in this novel for him is overcoming self blame along with dealing with culturally assimilating himself to

147. ## math

does 13 go into 60?

148. ## English Literature

In Macbeth there are 3 main themes: Gender, The Supernatural, and Ambition. What are 5 examples of each?

149. ## math

I need a few examples of Arithmetic sequences in our daily lives. I also need the general formula of an arithmetic sequence. Can anybody help?

150. ## SCIENCE

NEED HELP WITH EXAMPLES IN SCIENCE

151. ## physics

A soccer ball of diameter 29 cm rolls without slipping at a linear speed of 3.6 m/s. Through how many revolutions has the soccer ball turned as it moves a linear distance of 18 m?

152. ## nglish

can you please give me some tips on how to start a interview.In a interesting way that will appeal the readers and to keep them entertained. THANK YOU

153. ## physics

How do you know what element is chemically active on the periodic table? PLS HELP

154. ## math

I have a question that is asking me "How many factors does each of the following numbers have? 12^4=

155. ## Chemistry

A few Drops of HCl spilled over in the CaCO3 sample. Will the Reported percent of CaCO3 be too high, too low or unaffected?

156. ## math

How many factors does each of the following numbers have? 7^3 * 11^3 =

157. ## science

NEED HELP WITH EXPLANATIONS FOR THE WORD'S EVAPORATION CONDENSATION AN PERCIPITATION PLEASE SOMEONE HELP US

158. ## pre-calc

How do u solve (f-g)(x) when f(x)=4x/7 +7 and g(x)=-6/x Ok so its (f-g)(x)=4x/7 +7 - (-6/x) But how do u simplify it from there? Thanks!

159. ## Chemistry

I don't know how to set up this problem...can you help? How many milliliters of 6.00M HCl are required to react with 150 mL of 1.48 M Al(OH)3? Al(OH)3+3HCl to AlCl3 + 3H2O

160. ## math algebra 1

What is the least positive integer that is divisible by all whole numbers from 1 to 9?

161. ## gtcc

From 0 degrees to 90 degrees - what is the highest m (slope) value that a passenger train currently carries passengers (worldwide)?

162. ## spanish

can someone tell me what this means please Esta campana muda en el campanario, esta mitad partida por la mitad, estos besos de Judas, este calvario, este look de presidiario, esta cura de humildad. Este cambio de acera de tus caderas, estas ganas de nada,

163. ## Women in Society

How does the way a society treats and regards its women affect the way outsiders perceive that society? How do you think cinema - and other forms of pop culture and mass media - affect that perception?

164. ## math

solve for x AB=24, MB=2x+4

165. ## Math

In how many different ways may the four officers be seated?

166. ## to ms.sue

thanks for answering my questions all the time.you always give me a lot of ideas.write back!see you!

167. ## English

I am writing a paper on a farewell to Arms can someone help me find sources on characterization or realism that are found within the novel?

168. ## Writing

Can you add figurative or tell me where I could add it, check my title, proofread, and help me show creativity? Freedom Doesn’t Come Free What is something you can never show much gratitude for? Well, veterans have done many things for our country.

169. ## Velocity and Acceleration

A car is travelling on a highway Can it have a negative velocity & a positive acceleration at the same time? Can the car change d direction of its velocity when travelling with constant acceleration?

170. ## Language

What are the proper nouns in this sentence? "Vincent Massif is the name of the highest point"

171. ## Word Problem Help Please

The cost of renting a bus to go snowboarding was split evenly by the 20 students planning to go. The day before the trip, 10 more students decided to go. Dividing the cost evenly among all 30 students brought the average cost down by \$9.00 per person. What

172. ## ms.sue

how old are you?

173. ## Melillo Middle shcool

I need to work up a 5th grade Explorer recruitment Post for my Sicence class on Sir Frances Drake. an you give me information

174. ## literacy

what are the syllables for the word attentively

175. ## physics

if a car can accelerate at 6m/s2, how fast can it accelerate if it is towin an identical car behind it?

176. ## physics

In suddenly the value of G, the gravitational constant, increased to a billion times its actual value, what sorts of things would happen?

177. ## critical thinking (just explain the question plz)

can u explain this question for me or rephrase it because i don't understand what it means by fact-based subject matter or value-based subject matter. Does your hypothesis test fact-based subject matter or value-based subject matter? Briefly explain.?

178. ## website

i need a wedsite to help me dengin a moldol of a simple machine for a proget any ideas

179. ## Chemistry

Calculate [H3O+] and [OH-] in 0.22 M KOH(aq). This is a strong base.

180. ## English

I am writing an English paper and I was wondering if one is supposed to always capitalize the word gothic? What are the rules? My paper includes phrases such as: gothic genre gothic mother gothic conventions gothic story gothic characteristics gothic tale

181. ## MATH

Consider an amortized loan of \$10,000 ( with 10.0% interest compounded monthly) paid back over two yrs in equal, monthly installments. For each of the first two months, calculate three things: the interest paid for the month, the amound of the principal

182. ## English

I still have some doubts and a few sentences to check I can't understand. Can you help me? 1) How was Elizabethan theatre structured? 2) Do you say "correcting fluid" or corrector fluid? 3) Student's card OR student card. I also need to check these

183. ## Social Studies 9

18th century france propose some reasons why women were unable to keep leadership positions during the reign of terror and its aftermath. HELP I NEED IT BY TOMORROW!!!

184. ## physics.pls help

How do you know what element is chemically active on the periodic table? PLS HELP

185. ## Chemistry

What is the molarity of H2SO4 in a solution prepared by adding 15.0 mL of 6.0 Molarity H2S04 to enough water to make 100.0 mL of solution?

186. ## Physics

Show that there is no Brewster’s angle for s polarization.

187. ## Math

explore the significance of the coefficient "a" in determining the shape of the graph of y=a|x|.[

188. ## physics

from what height should you drop your physics textbook so that it takes 0.2 seconds for it to fall? ftom what height would you drop a baseball so it takes 0.2 seconds for it to fall?

189. ## G-Chem

How man grams of Fe+3 are required to make 1.0L of an aqueous solution of 10 ppm Fe+3: (Assume the densit of water is 1.00g/mL)

190. ## Physics

Show that there is no Brewster’s angle for s polarization.

191. ## physics

A rocket blasts off vertically from rest on the launch pad with an upward acceleration of 2.80 . At 30.0 after blastoff, the engines suddenly fail, which means that the force they produce instantly stops.

192. ## chemistry

calculate the debroglie wave length for each of the following a. the proton with the velocity of 75 percent of the speed of light.

193. ## PHI103 Informal Logic

construct three different arguments that display distinct fallacies. Give an explanation of why each makes a mistake in drawing the conclusion it does. Review your classmates’ examples and see if they, in fact, commit the fallacy identified.

194. ## English

I left out a sentence. I don't know which form is best. 1)I would be really grateful to you if you could send me the names of Irish high schools which might be interested in a partnership with our school. 2) It doesn't matter if German is not taught at

195. ## Math

The population, P (in thousands), of a town can be modeled by P= 2|t-6|+4, where t=0 represents 1990. During which two years does the town have a population of 8000? Can someone show me the steps to this problem?

196. ## Linear Algebra

Find the inverse of the matrices if they exist. Use the algorithm introduced in this section. 1 2 -1 -4 -7 3 -2 -6 4

197. ## Psychology

Do know of any scholarly websites that discusses confronting a difficult coworkers who are chronic complainers?

198. ## Physics

You are on a treasure hunt and your map says "Walk due west for 52 paces, then walk 29.6° north of west for 40 paces, and finally walk due north for 25 paces." What is the magnitude of the component of your displacement in the following directions? (a)

199. ## health care

what is the relationship between levels of confidence and statistical significance?

200. ## physics

A projectile is fired with an initial speed of 26.0 m/s at an angle of 30.0 above the horizontal. the object hits the ground 9.00 s later

201. ## Physics

A skateboarder shoots off a ramp with a velocity of 6.5 m/s, directed at an angle of 62° above the horizontal. The end of the ramp is 1.5 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically upward, and take as the

202. ## Socials

Definitions... Militarism: The belief that the military is the answer to problems a nation has. Alliance: Relationship between states. Balance of power: Sharing of power that no single nation can control or mess about with. Dreadnought: Largest battleship

203. ## Physics

A skateboarder shoots off a ramp with a velocity of 6.5 m/s, directed at an angle of 62° above the horizontal. The end of the ramp is 1.5 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically upward, and take as the

204. ## Exchange Rates Help

Hello, How do you know if the Canadian dollar is rising or falling relative to the US dollar? Is 0.95 CAD/USD good or bad? Thanks very much for your help.

205. ## Math

Your bank account balance is -20.85. you deposit \$15.50. What is your new balance?

206. ## Chemistry

I just cant seem to figure out how to get the pH of an acid or base using the ion product of water. A.[H3O+}= 5.6x10ee-3

207. ## Calculus

If any body can solve this I would be greatly appreciative. I spent an hour in the tutoring center and no one could solve. Here goes: A spotlight on the ground shines on a wall 12 m away. If a man 2 m tall walks from the spotlight toward the building at a

208. ## Calculus

Here is the other. Thank you! A kite 100 ft above the ground moves horizontally at a speed of 8 ft/s. At what rate is the angle between the string and the horizontal decreasing when 200 ft of string has been let out?

209. ## Pre-Calculus

Please check: 1.Find polar equation of x^2 + y^2 = 10y r^2 for x^2 + y^2 and sin(theta sin for y =r^2=10sin(theta) 2. y=5 r=5/sin 3. x^2+y^2 =x^2 + y^2 =2x+3y

210. ## Math Linear Algebra

Find the inverses of the matrices. Let A = 1 2 5 12 b1 = -1 3 b2 = 1 -5 b3 = 2 6 b4 = 3 5 Find A^-1, and use it to solve the four equations. Ax = b1, Ax = b2, Ax = b3, Ax = b4

211. ## physics 12

A satellite has an orbital period of 4 hours. what is the altitude? thanks.

212. ## Number Systems

Convert 103 base 10 to base 2,base 8, base 16

213. ## English (Urgent)

Hi I'm writing an essay about No-No Boy. Does the following sentence sound alright, if not how do I make it sound better. I need help soon please! Two significant problems in this novel for him is overcoming self blame along with dealing with culturally

214. ## biology

depict the following dilutions series: 1:4 1:16 1:64 IN A FINAL VOLUME OF 200ML

215. ## math

express 55 minutes as a frcation of 1 1/3 hours

216. ## algebra

the width of a rectagle is fixed at 4cm. For what lengths will the area be less than 86cm2

217. ## COM/107

WORD PARAGRAPH ON EMOTIONS TO DESCRIBE THE IMPORTANCE OF PURPOSE, AUDEIENCE, TONE AND CONTENT IN ACADEMIN WRITING.

218. ## Math HHEEEELLLLLLLPPPPPP

Are theese constant Ratios... 1:2:4:8:16, or are theese constant ratios: 1:2 2:4 4:8 8:16 Are they both wrong? If they are, could you give me 2 examples and explain them please? With 2, I should probably be able to come up with my own.:)

219. ## history

s how many archers were used during war of the spartans?

220. ## Pre-Cal

how do you find the vertex using two points, when no equation is given and neither points are the vertex? what formula can i use to find it?

221. ## English

Could you please check these sentences (the various alternatives). Thank you very much. 1) "I didn’t give him my password,” she said. 11) “Shall I wrap the chocolate for you?”, the shop assistant asked me. 2) She denied giving him her password. She

222. ## health care

can anyony=ted question? pose help with my previous

asked by confused! :( any one there?
223. ## English Help!!!!

Could you tell me about a person who dominated the poor and uneducated.

224. ## Number systems

Convert 103 base to base 8 & and base 16

225. ## algebra

If you enter Interstate 40 at mile marker 23 in Sayre, Oklahoma, how far would you need to travel to reach mile marker 125 in El Reno, Oklahoma? After reaching El Reno, you might worry that your vehicle is running low on fuel. You know that your vehicle

226. ## Physics

is force and normal force the same thing? if not what is the difference. for instancee if a problem said given a force of 20 newtons. would normal force be 20 newtons? please answer !!!!!!!!!

227. ## math

ms.goldfarb has 12 turqoise beads and 3 times as many amber beads. she is making 8 pins with the same number of beads on each pin. how many beads will be on a pin?

Is this how I say the spider is smaller than the lizard? La araña es más pequeña que la iguana.

229. ## physics 12

a 1kg satellite has an orbital period of 4 hours. what's the altitude?

230. ## physics

number of pickup trucks and the number of points.What goes on the x axis

231. ## early childhood education

voters have been historically nwilling to underwrite a school age child care system because a)they werent voting because they didn't have time b)two parents staying at home seemed to be a much better idea c)they believe that child care was responibility of

232. ## Math

I have to find the prime factorization of each number and write down the answers with exponents when repeated factors appear. eighteen, four hundred eighty, six hundred forty Next, I need to write this fraction in lowest terms. one-hundred sixty-five over

233. ## science project

abbreviation for HOT

234. ## calculus

if f(x)=25-x^2 and g(x)=5-x, what is the rule for the function (f-g)(x)?

235. ## pre-calculus

a ship passes by buoy b which is known to be 3000 yd from peninsula p. the ship is steaming east along line be and angle pbe is measured as 28 degrees. after 10 min., the ship is at s and angle pse is measured as 63 degrees. how far from the peninsula is

236. ## math

if f(x)=9-x^2 and g(x)=x^2+4, find (g o f)(x) and (f o g)(x)

237. ## English

I left out one more thing. 1) I have a doubt: How is Elizabethan theatre structured (or the Elizabethan theatre) structured?

238. ## chemistry

can someone please show me the steps of setting up the emirical formula for NaN3

239. ## Exchange Rates Help

What are some possible explanations for the differences between the Canadian and American prices of identical items?

240. ## Physics

A mass of 18 kg is being pushed up a frictionless incline with a constant force of 20 Newtons directed parallel to the incline, up the incline. At the top of the incline the mass is moving at 23 m/s up the incline. If the angle of inclination is 58 degrees

241. ## math

How do I solve this problem- how many 2/3 x 3 inch slices can I get out of eight 12 x 6 inch cakes?

242. ## Physics

A mass of 5.6 kg lies at the top of a frictionless incline. It is inclined at an angle such that the normal force on the mass is 30 Newtons. If the length of the incline is 58 meters and the mass is originally at rest at the top of the incline and then

243. ## Physics

A mass of 5.6 kg lies at the top of a frictionless incline. It is inclined at an angle such that the normal force on the mass is 30 Newtons. If the length of the incline is 58 meters and the mass is originally at rest at the top of the incline and then

244. ## physics

To start an avalanche on a mountain slope, an artillery shell is fired with an initial velocity of 350 m/s at 51.0° above the horizontal. It explodes on the mountainside 40.0 s after firing. What are the x and y coordinates of the shell where it explodes,

245. ## Physics

A mass of 8 kg lies on a horizontal, frictionless floor. A force of 72 Newtons pushes to the left (negative x direction) with a force of 72 Newtons. Another force of unknown magnitude pushes the mass in a direction of 21.4 degrees above the positive x

246. ## Chemistry

would you expect calcium to have a higher or lower boiling point than potassium

247. ## Statistics

A national survey of small businesses reports that 70% of all small businesses now have a web-site. Assume that for a randomly selected group of 30 small businesses, the number with a web-site has a binomial distribution. In a random sample of 30 small

248. ## Physics

A mass of 11 kg is placed on a frictionless incline which is inclined at an angle of 69 degrees above the horizontal. It is held in place by a rope which is attached to a wall at the top of the incline. The rope is angled 13 degrees above the direction

249. ## calculus

Find the derivative of the function. y=cos((1-e^x)/(1+e^x)) Please show all work and explain. I am very confused

250. ## algebra

what are rational expressions? Why must we always be mindful of the final value of the denominator in a rational expression? For example, consider the rational expression 3x/(x2 – 16). What values in the denominator must we be mindful of? Explain why.

251. ## Algebra 2 (Distance Problem)

A train leaves Union Station for Central Station, 216 km away, at 9 A.M. One hour later, a train leaves Central Station for Union Station. They meet at noon. If the second train had started at 9 A.M., and the first train at 10:30 A.M., they would still

252. ## Government US

Marx argued that a free-market system is exploitative because a. workers’ wages are lower than the value they add to production. b. consumers pay higher prices for goods than it costs to produce them. c. all private transactions are inherently unjust. d.

253. ## Chemistry

Find the standard entropy (S^0) of ice at 25K. delta Hfus = 6009 J/mol and Cp of ice = 38 J/molK.

254. ## physics

A motorist drives south at 26.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.40 min, and finally travels northwest at 30.0 m/s for 1.00 min. For this 6.40 min trip, find the following values.find displacement, average speed, and average

255. ## Algebra 2

At a county fair, adults' tickets sold for \$5.50, senior citizens' tickets for \$4.00, and children's tickets for \$1.50. On the opening day, the number of children's and senior's tickets sold was 30 more than half of the number of adults' tickets sold. the

256. ## social studies-Amrican History

The studentwill describe the reasons, successes and failures of Englands first attempts to start colonies in North America.

257. ## Algebra 2

At a county fair, adults' tickets sold for \$5.50, senior citizens' tickets for \$4.00, and children's tickets for \$1.50. On the opening day, the number of children's and senior's tickets sold was 30 more than half of the number of adults' tickets sold. the

258. ## Government USA-Help

Supply-side economics, during President Reagan’s administration, involved a. the supply component of the supply-demand equation. b. stressing the importance of tax cuts for businesses. c. stressing the importance of tax cuts for the wealthy. d. an

259. ## calculus

Water is leaking out of an inverted conical tank at a rate of cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height meters and the diameter at the top is meters. If the water level is

260. ## American Government

Which is true regarding the nation’s environmental policy? a. The first major steps by the national government to clean up the environment began in the early 1900s. b. A majority of the public is sympathetic to environmentalism. I would say B is the

261. ## physics

An airplane maintains a speed of 597 km/h relative to the air it is flying through as it makes a trip to a city 759 km away to the north. (a) What time interval is required for the trip if the plane flies through a headwind blowing at 36.0 km/h toward the

262. ## calculus

Water is leaking out of an inverted conical tank at a rate of 1600.0 cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height 10.0 meters and the diameter at the top is 3.5 meters. If the

263. ## Social Studies-Amrican History

Descibe the factors that led to the founding of the colonies such as the escape from religous pesecution, economic oppertunity, release from prison and military adventure Know any good sites???

264. ## Language arts

Is "white as a ghost" an idiom?

265. ## calculus

A street light is at the top of a 20 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 6 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 35 ft from the base of the pole?

266. ## calculus

A particle is moving along the curve y=5sqrt(3x+1). As the particle passes through the point (5,20) its x-coordinate increases at a rate of 3 units per second. Find the rate of change of the distance from the particle to the origin at this instant.

267. ## s.s

how does gps works

268. ## US Gov

The reason a statement specific to state powers was not part of the original U.S. Constitution was that: a. New York delegates refused to allow discussion on the matter. b. it was assumed to be obvious. c. it was deleted under the Virginia Plan. d. no such

269. ## AP macroeconomics

Ok, I have a question. There is a production possibilities frontier graph (it's linear) labeled with 2 products that can be made on the axes for 2 sets of data regarding each person (rancher and farmer.) A point is labeled in the middle of the line of data

270. ## literacy

attentively, is it: A.a\tten\tive\ly B.a\ttent\ive\ly or any other

Please check: 1.Find polar equation of x^2 + y^2 = 10y subbed r^2 for x^2 + y^2 and sin(theta sin for y =r^2=10sin(theta) 2. y=5 r=5/sin 3. x^2+y^2 =x^2 + y^2 =2x+3y

272. ## chemistry 12

Calculate [H3O+] and [OH-] in 0.18M hydrobromic acid, HOBr(aq), having a K of 2.0x10^-9? I got 9.0x10^-8

273. ## Valpo high school

pola develops a new espresso machine, which she means "Quik Shot" she also writes the operating manual. Pola can obtain trademark protection for

274. ## math

got 23 out of 50 where worth is 50, if the final exam is out of 77, how many ,marks need to score to get 50

275. ## statistics

in a class of 40 student,18 pass maths, 19 pass account,16 pass economics 5 pass maths and account only, 6 pass maths only, if each student pass at least one of the subject.find the percentage number who fail in at least one of economics and maths. how

276. ## physics

if i am pulling a wagon full of puppies that are in dynamic equilibrium must be the net force on the puppies

277. ## Physics

A mass of 18 kg is being pushed up a frictionless incline with a constant force of 20 Newtons directed parallel to the incline, up the incline. At the top of the incline the mass is moving at 23 m/s up the incline. If the angle of inclination is 58 degrees

278. ## Physics

The driver of a 1350 kg car, initially traveling at 10.6 m/s, applies the brakes, bringing the car to rest in a distance of 15.0 m. Find the net work done on the car. Not sure how to set this problem up.

279. ## statistics

Nownes (2000) surveyed representatives of interest groups who were registered as lobbyists of three U.S. state legislatures. One of the issues he studied was whether interest groups are in competition with each other. Table 1?10 shows the results for one

280. ## history

When were hunter gatherers around in america? why and when(a date or range would be great) did they settle down?

281. ## Arts and Science of quality of Learning

How to write a objective question

282. ## Physics

how do you find the magnitude of the mass's velocity?

284. ## Satistics

5. Give the standard deviation for the mean and median column. Compare these and be sure to identify which has the least variability? Standard deviation of Mean = 0.476169 Standard deviation of Median = 0.753937

285. ## subtract with decimal

\$546.00 / 10.50 = I am not sure how to do steps in long division with decimal can you show me?

286. ## Enegry

Are there ways to have more enegry. You see during second period yesterday like during gym we were during war ups (ugh I HATE THE WAR UPS) ans when I was running, & skipping I felt so tired & losing enegry so is there any ways I can have MORE MORE MORE

287. ## culinary arts

_________________ is an uncooked mixture of equal parts butter and flour, used as a thicking agent.

288. ## compatable numbers

use compatable numbers to estimate the answers to the following 2 problems. show work 21.98 / 2.56 28.56 / 6.95

289. ## culinary arts

a(n) ___ is a uniform mixtue of two unmixable sustances.

290. ## math

Two twin brothers each have two favorite sweat shirts that they wear every other day. One day, dad decides that all four sweat shirts need to be washed! He takes all four shirts and washes and dries each. After washing the shirts, he cannot tell which

291. ## culinary arts

______ is a cold, uncooked Spanish soup made of pureed raw vegetables.

292. ## spanish

what is the difference gramtically between these two sentences Necesitamos sillas más cómodas. Se necesitan sillas más cómodas.

293. ## calculus

Find the domain of 2x^3-5 divided by x^2+x-6

294. ## Algebra 2 (Diophantine Equations)

Find all positive integer solutions for 13x + 9y = 190 using Diophantine equations.

295. ## Chem

Name the industrial process in the air separation plant that can be obtain oxygen from liquefied air.

296. ## physics

When a 2.50-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 3.13 cm. a)What is the force constant of the spring? b) If the 2.50-kg object is removed, how far will the spring stretch if a 1.25-kg block

297. ## Chem

State the hazard warning label that should be shown on a jar of oxygen.

298. ## science

If a ball rolls North 5 meters in 2 seconds, what is its speed?

299. ## Math

Simplify (2/3)^4

300. ## Chem

State one physical property and one chemical property of oxygen. Physical property: Chemical property:

301. ## math

multiply and combine like terms 5(3x-2y) - (x+6y)

302. ## chemistry

How many moles of sodium bicarbonate are contained in 1mL of a saturated solution of NaHCO3 (approximately 1g of solute is dissolved per 9mL solution)?

303. ## grammar

need to know some examples for the nominative comparative and superlative of irregular words apart from good better best , bad worse worst and little less least

304. ## Literacy

This is a brief story on Jackie Robinson's life and I have to make a sequence of important events in his life and the first one was done for me: Jackie Robinson was the first African American baseball player to play in the modern Major leagues. He played

305. ## GCC

I need to summerize a research paper that is mainly made up of quotes. How do I summerize it when is consist of quoting a quote. How do I structure my paper when the person that wrote the paper has so many quote. I hope this makes sense? Is there a way to

306. ## English

Which of the following would be an example of an emotional appeal that is part of a persuasive message? A. Written agreement are binding. B. There is reliance on nonverbal signs to communicate. C. Oral agreements are not binding. D. There is a preference

307. ## Physics

A shell is fired from the ground with an initial speed of 1.68 103 m/s at an initial angle of 37° to the horizontal. (a) Neglecting air resistance, find the shell's horizontal range. m (b) Find the amount of time the shell is in motion. s

308. ## question

But critical writing like argumentative essays have structure. (can you tell me what is wrong with this message?)

309. ## physics

How to solve: If a man walk with speed of 2km/hour and rain fall became in the shape of 90 degree.then find out velocity n direction of rain if man walk with speed of 4km/hour and angle of rain is 45 degree