# Questions Asked onSeptember 14, 2010

1. ## physics

The speed of a nerve impulse in the human body is about 100 m/s. If you accidentally stub you toe in the dark, estimate the time it takes the nerve impulse to travel to your brain. (Assume that you are approximately 1.8 m tall and that the nerve impulse

2. ## physics

A long, thin straight wire with linear charge density -λ runs down the center of a thin, hollow metal cylinder of radius R. The cylinder has a net linear charge density 2λ. Assume λ is positive. Find expressions for the electric field at the following

3. ## Physics

A child is pushing a shopping cart at a speed of 1.5 m/s. How long will it take this child to push the cart down an aisle with a length of 9.3 m?

4. ## calculus

Assume a substance has a half-life of 11 years and the initial amount is 144 grams. How much remains at the end of 5 years? How long will it be until only 30 % remains?

5. ## spanish

Mari Bocazas is one of those people who often exaggerates. Whatever you do, she says she does it better, and whatever you have, she says she has more. What would Mari say if you were to tell her that you had each of the following? un(a) novio(a)

6. ## finite math

Assume that the student has a cup with 15 writing implements: 8 pencils, 5 ball point pens, and 2 felt-tip pens.In how many ways can the selection be made if no more than one ball point pen is selected?

7. ## molal

the freezing point of ethanol (C2H5OH) is -114.6C. the molal freezing point depression constant for ethanol is 2.00C/m. what is the freezing point (C) of a solution prepared by dissolving 50.0 g of glycerin (C3H8O3, A nonelectrolyte) in 200 g of ethanol.

8. ## AP Stats

The distribution of heights of adult American men is approximately normal with mean 69 inches and standard deviation 2.5 inches. Use the 68-95-99.7 rule to answer the following questions: (d) A height of 71.5 inches corresponds to what percentile of adult

9. ## physics

A particle leaves the origin with an initial velocity v=(2.40 m/s)x hat and moves with a constant acceleration a=(-1.90 m/s ^2)x hat+(3.20 m/s ^2)y hat. How far does the particle move in the x direction before turning around? Answer is 1.48 m. What is the

10. ## algebra 1b

Arianna kicks a soccer ball off the ground and in the air with an initial velocity of 42 feet per second. Approximately what maximum height does the soccer ball reach?

11. ## chemistry

WHAT TYPE OF CHEMICAL REACTION IS FORMED FROM Mg + O2----MgO

12. ## economics

1. 1. Derived demand refers to a) demand curves derived from utility functions b) an individual demand curve estimated from a market demand curve c) a market demand curve estimated from individual demand curves d) demand for a resource derived from the

13. ## Pre Calc!

A drug is eliminated from the body through urine. Suppose that for a dose of 10 milligrams, the amount A(t) remaining in the body t hours later is given by A(t)=10(0.8)^t and that in order for the drug to be effective, at least 2 milligrams must be in the

14. ## chemistry

[Cu(NH3)4]2+ + SO4(aq)2 + H2O [Cu(NH3)4]SO4•1H2O What is the theoretical yield of the products?

15. ## Physics

A child on a sled reaches the bottom of a hill with a velocity of 12.0 m/s and travels 22.0 m along a horizontal straightaway to a stop. If the child and sled together have a mass of 59.0 kg, what is the magnitude of the average retarding force on the sled

16. ## geography

Match the region to its description. 1. climate _defined by agreements between nations creating free trade zones 2. cultural _defined by average precipitation and temperature 3. economic _defined by factors including language, religion, or customs 4.

17. ## lititure

what is the rising action in the story "The School Play' By: Gary Soto

18. ## Physics

A hummingbird hovers motionless beside a flower. You can observe that the wings are moving rapidly up and down. If air pushes upward on the bird with a force of .30N whats the weight of the hummingbird?

19. ## chemistry

1. State one property in which a solution of sugar in water resembles a mixture of sugar and sand, and one property in which it differs from it?

20. ## Chemistry

In which reaction does the oxidation number of oxygen increase? a. Ba(NO3)2+K2SO4--->BASO4+2KNO3 b. HCL+ NaOH---> NaCl+H20 c. Mg0+ H20---> Mg(OH)2 d. 2SO2+02---> 2SO3 e. 2H2O---> 2H2+O2

21. ## Chemistry

Calcium chloride has been used to melt ice from roadways. Given that the saturated solution is 32% calcium chloride by mass, estimate the freezing point. Express your answer in degrees Celsius. Assume that calcium chloride behaves ideally in solution.

22. ## Chemistry

In a mountainous location, the boiling point of pure water is found to be 95 degrees Celsius. How many grams of sodium chloride much be added to 1 kg of water to bring the boiling point back to 100 degrees Celsius? Assume that sodium chloride behaves

23. ## Physics

You are pulling a suitcase through the airport at a constant speed. The handle of the suitcase makes an angle of 45 degrees with respect to the horizontal direction. If you pull with a force of 7.5 N parallel to the handle, what is the force of friction

24. ## chem

400.0g of a metal absorbs 10000.J of heat energy and its temperature rises from 20.0*C to 103.0*C. What is he specific heat of the metal

25. ## chemistry

Analysis of a compound gave 39.50% C, 2.20% H, and 58.30% Cl. When 0.855 g of this solid was dissolved in 7.50 g of napthalene, the solution had a freezing point of 78.0° C. The pure solvent freezes at 80.0° C; its molal freezing point constant is 6.8°

26. ## Pre Calc!

A drug is eliminated from the body through urine. Suppose that for a dose of 10 milligrams, the amount A(t) remaining in the body t hours later is given by A(t)=10(0.8)^t and that in order for the drug to be effective, at least 2 milligrams must be in the

27. ## physics

A certain car is capable of accelerating at a rate of +0.50 m/s2. How long does it take for this car to go from a speed of 45 mi/h to a speed of 85 mi/h?

28. ## English

Can you please help me infer about Mah and her past from what she says and does and from what the narrator says about her. This is relating to the excerpt from Bone.

29. ## math (trig)

from the top of a bridge over the burlington canal, maria looks down at a sailboat at an angle of depression 15 degrees.the bridge is 18m above the water. calculate the horizontal distance from the bridge to the sailboat

30. ## Physics I

A person is attempting to swim directly across a river. They are able to swim at a speed of 0.500 m/s relative to the water. The river is 25.0 m wide and the person ends up 50.0 m downstream from their starting point. How fast is the current in the river?

31. ## chemistry

how many moles of solute is present in 40.0mL of 1.000 M of HNO3

32. ## Biochemistry

Sorry! HEPES, is a commonly used component of physiological buffers. The PKa of the protonated amino group of HEPES is 7.55 at 25C. Describe the preparation of 1.00L of 0.100M HEPES buffer, pH 8.00, from the sodium salt of the basic form of HEPES (MW

33. ## College Chemistry

Phosphoric Acid is usually obtained at an 85% phosphoric acid solution, by mass. If this solution is 15 M, what is the density of the solution? Express your answer in g/ml

34. ## Psych

How does nature and nurture contribute to one’s self-efficacy?

35. ## math

A magazine claims that 25% of its readers are college students. Of a random sample of 200 readers, 42 are college students. Use a .10 level of significance to test Ho: p =.25 and H1: p ≠ .25 Show the hypothesis test procedure.

36. ## chemistry

What is the freezing pint of 0.0091 m aqueous sodium phosphate, Na3PO4? Assume that sodium phosphate is a strong electrolyte and it functions ideally in solution. (express your answer in degrees Celsius)

37. ## calculus

if h(t) represents the height of an object above ground level at time t and h(t) is given by h(t)=-16t^2+13t+1. find the height of the object at the time whent eh speed is zero

38. ## College Physics

A 1200 kg airplane starts from rest and with a constant average forward acceleration of magbitude 5.0 m/s, reaches its takeoff speed in 9.00 s. The runway is 300 m long. What is the plane's takeoff speed?

39. ## calsulus

if h(t) represents the height of an object above ground level at time t and h(t) is given by h(t)=-16t^2+13t+1 find the height of the object at the time when the speed is Zero. h(t)=?

40. ## Physics

Estimate the average force exerted by a shot-putter on a 6.5 kg shot if the shot is moved through a distance of 2.7 m and is released with a speed of 11 m/s.

41. ## chemistry

Propane is widely usid in liquid form as a fule for barbecue grills and camp stoves for 58.5g of propane, calculate the following quantities. The grams of carbon?

42. ## geometry

You have a slice of pizza with a central angle that measures 140° that you want to share with your friend. She cuts it through the vertex into two slices. You choose one slice that measures 60°. How many degrees are in the other slice?

43. ## biology

how does a hypothesis help scientists understand the natural world?

44. ## Physics

An elastic cord is attached to two back teeth and stretched across a front tooth. The purpose of this arrangement is to apply force to the front tooth. If the tension in the cord is 1.2 N what are the magnitude and direction of the force applied to the

45. ## Structural design part 2

The structual technique that includes long vertical studs running from the sill plate to the second floor rppf frame is called_____framing. A.platform B.vertical C.balloon D.post Bulging of exterior walls usually results in. A.sagging of windows B.a rise

46. ## chemistry

You have a 22 g sample of ethanol with a density of 0.7893 g/mL. What volume of ethanol do you have?

47. ## physics

What is the magnitude of the displacement of a car that travels half a lap along a circle that has a radius of 170m ?

48. ## Physics

An airplane flies 200 km due west from city A to city B and then 345 km in the direction of 32.0° north of west from city B to city C In straight-line distance, how far is city C from city A?

49. ## chemistry

2C6H5CL + C2HOCL3 / C14H9CL5 + H2O 114G CHLOROBENZENE IS REACTED WITH 485G CHLORAL. WHAT MASS OF DDT IS FORMED?

50. ## chemistry

How many liters of water must be added to 4 liters of a 6 molar HNO3 solution to create a solution that is 2 molar?

51. ## Physics

A fisher sets out to check his fishing nets and heads 15 km/h [N] for 0.20 h. After stopping for 0.50h, he travels at 12 km/h [E] for 0.10 h to get to the next set of fishing nets. a) What is the fisher's displacement to get to the first set of nets? ( I

52. ## chemistry

CaCO3 = CaO +CO2 after a 15.8g sample of calcium carbonate was heated in an open container to cause decompostition the mass of the remaining solid was determined to be 9.10g. calculate the mass of carbon dioxide produced.

53. ## social studies

write a sentence that explains how the terms tributary and drainage basin are realated

54. ## math word problem

Bill likes pepperoni pizza, and Howard like sausage pizza. Both are willing to eat pizza with sausage and pepperoni both. They order 10 pizzas total, each of which has either sausage or pepperoni and some of which have both. If 6 have pepperoni on them,

55. ## Chemistry

SrH2 +2H2O = Sr(OH)2 + 2H2 You wish to calculate the mass of hydrogen gas that can be prepared from 7.74g of SrH2 and 6.45g of H2O How many moles of H2 can be produced from the given mass of SrH2? How many moles of H2 can be produced from the given mass of

56. ## chemistry

What is the half-life of an isotope if it decays to 12.5% of its radioactivity in 18 minutes?

57. ## chemistry

What is the total vapor pressure4 at 20° C of a liquid solution containing 0.30 mole fraction benzene, C6H6, and 0.70 mole fraction toluene, C6H5CH3? Assume that Raoult’s law holds for each component of the solution. The vapor pressure of pure benzene

58. ## Algebra

Twice Beth's daily pay is the same as her daily pay increased by 45\$. Find Beth's daily pay.

59. ## French

toi / la / aimer / la / moi / fête / mieux / et / nous / faire i am supposed to unscramble and conjugate these and make a sentence i cant figure one out that makes sense

60. ## English

In Handmaid's Tale, What can you tell about the period just from the first sentence? "We slept in what had once been the gymnasium?" What I put was that it was from long time ago because a gymnasium is used for playing sports, not to sleep and in this

61. ## physics

A person is standing at the edge of the water and looking out at the ocean. The height of the person's eyes above the water is h = 1.6m. and the radius of the earth is R = 6.38 X 10^6 m. (a) How far is it to the horizon?

62. ## calculus

Find the average rate of change of the function f(x) = 2x4 + 3x2 ¡ x + 2: (a) on the interval [0; 3] and (b) on the interval [¡2; 0]

63. ## math

Estimating and dividing with greater numbers: 794 divided by 46

64. ## Science

3 elements that have the same properties most like Helium

65. ## physics

Traumatic brain injury such as concussion results when the head undergoes a very large acceleration. Generally, an acceleration less than 800 m/s2 lasting for any length of time will not cause injury, whereas an acceleration greater than 1000 m/s2 lasting

66. ## alegebra

im in 7 th grade but doing alegebra pizzaz riddle why do girls like guys who ear shirts with eight buttons

67. ## Calculus

Many scientists believe that there have been four Ice Ages in the past 1 million years. Before the technique of carbon dating was known, geologists erroneously believed that the retreat of the Fourth Ice Age began about 25,000 years ago. In 1950, logs from

68. ## chemistry

how many moles of Cl2 will be produced from the reaction of 9.61 moles of HCl? MnO2 + 4HCl = MnCl2 +Cl2+2H2O

69. ## geometry

Q is the midpoint of PR. PQ = 3x - 5 and QR = x + 17. What is the value of x?

70. ## College Chemistry

Which of the following changes generally lead to greater reaction rates? (I)Increasing the temperature (II)Decreasing the concentration of a reactant or (III) adding a catalyst I know that change in temperature influences the reaction, in this case it

71. ## chemistry

2Br- + Cl2 = 2Cl- +Br2 how many moles of chlorine gas, are required to react with 169g of bromide(Br-)?

72. ## chemistry

How many milliliters of a 0.50 M solution contain 14.0 g of BaCl2 (Barium Chloride)?

73. ## chem

when K temperature increases, the average kinetic energy of the particles in a sample do?

74. ## bc

20. You are writing to a reader who favors a different solution than the one you recommend. Which of the following is MOST likely to persuade the reader? (Points: 5) Describe your reader's solution first, explain why it won't work, and then go on to

75. ## Chemistry

The rate law of a reaction, A-> B+C is given by the expression: Rate=k, where k=0.0113 mol/L min. If the initial concentration of the reactant is 0.225 mol/L, how long does it take for the concentration to decrease to 0.180 mol/L? I know i have to find the

76. ## Science

A crate is resting on the back of a truck and has a coefficient of of friction of 0.45. What is the maximum acceleration that the truck can undergo before the crate starts to slide off the back of the truck.

77. ## chem

as kelvin temperature increases, the average kinetic energy of the particles in a sample 1.Increase 2.Decrease 3.Remains the same

78. ## geography

The European Union (EU) was formed to advance the economic goals of Europe. Countries of the EU open their borders to member nations. European citizenship is extended to all, allowing people to live, work, and vote in any member nation. Member nations have

79. ## Calculus

Find an expression for the function whose graph is the given curve. The top half of the circle x^2 + (y-2)^2 = 4 Please Help. I don't even know where to start.

80. ## alicia

Okay, write the expression or inequality. : the difference of a number z and 11 is equal to 35 How would I do that? please explain in great detail

what vegetable has these letters? HARBRUB?

82. ## Internal Assessment Topic

I have to come up with an Internal Assessment topic for history, and I want something that focuses on Trotsky, but I'm having trouble thinking of a good topic. I would've liked to compare the roles of Trotsky and Lennin in the October Revolution, but my

83. ## chemistry

Couze The water in the buket has some energy (tempreture) it is absorbed by the water and the ice melts this way water cools...now if you consider the ice outside the bucket water will no longer be in tuch with ice ,since energy of water since must be

84. ## chemistry

How many grams of Li3N can theoretically be produced from 1.77 moles of Li? 6Li+N2 = 2Li3N

85. ## 20th Century World History

I have to come up with an Internal Assessment topic for history, and I want something that focuses on Trotsky, but I'm having trouble thinking of a good topic. I would've liked to compare the roles of Trotsky and Lennin in the October Revolution, but my

86. ## counseling

What do the following scores (Standard score of 130, a T-score of 70, and z score of 2 and a stanine of 9) have in common

87. ## Astronomy

Compared to the Sun's gravitational force on the Earth, what is the Sun's gravitational force on Jupiter. Jupiter's average distance from the Sun=5AU Earth's average distance from the Sun=1AU Jupiter's mass is 300 times larger than Earth. I think the

88. ## statistics

A sample of n = 5 college students yielded the following observations on number of traffic citations for a moving violation during the previous year. Calculate s2 and s. (Round all answers to four decimal places.) s2 = 1 s = 2

89. ## statistics

what is the standard deviation if 12 randomly chosen students were asked how many times they had missed class during a certain semester with this result 2,1,5,1,1,3,4,3,1,1,5,1,8.

90. ## Chemistry

Oxygen reacts 1:2 with sodium and is a colourless gas; chlorine reacts 1:1 with sodium and is a yellow gas; neon does not reacts with sodium and is a colourless gas. Suppose that a new element , pretendium, has been dicovered, and it is noted that this

91. ## Math

A rectangular closet has a perimeter of about 20 feet and a width of about 3 feet. Find the diagonal.

92. ## chem

what is(2.25x10*3)(4.80x10*4)=

93. ## chemistry

how many moles of CO2 are produced from 2.90 moles of C3H8? C3H8 + 5O2 yields 3CO2 +4H2O

94. ## Calc

Find an expression for the function whose graph is the given curve. The top half of the circle x^2 + (y-2)^2 = 4 Please Help. I don't even know where to start.

95. ## Physics

Given VectorA=12i+7j-5k and Vector B= 2i-4j+3k 1)Find angle theta between vector A and vector B? 2)Fine VectorB x VectorA How would I go about doing these problems ?

96. ## chemistry

Which state of matter has the strongest bond? A. liquid B. solid C. gas D. molecule i think B but im not 100% sure

97. ## Math

The sum of 12 and the quanity 8 times a number k is equal to 48.... How would I write an expresion or inequality for that using >

98. ## math

Name two ways to get .60 cents without a 50 cent piece and 3 coins.

99. ## chemistry

What is composed of atoms in fixed proportions? A. mixtures B. compounds C. electrons D. elements

100. ## physics

A cheetah runs a distance of 97 m at a speed of 26 m/s and then runs another 97 m in the same direction at a speed of 34 m/s. What is the cheetah's average speed? ___m/s

101. ## physics

how much work is required to extend an exercise spring by 15 cm if the spring constant k has the value of 800 N/m

102. ## Chemistry

Potassium permanganate reacts with sulfuric acid as per the equation shown below. Indicate the amount of excess reactant after the reaction of 7.24g KMnO4 and 10.32g H2SO4? 4KMnO4+6H2SO4 = 2K2SO4 +4MnSO4 +6H2O + 5O2

103. ## geometry

what is the measure of the vertex angle of an isosceles triangle if one of its base angles measures 58?

104. ## math

Kevin has a rabbit, ferret, a gerbil, and a turtle. He feeds them in a different order each day. In how many different orders can kevin feed his pets?

105. ## Social Studies

How would being located on a lake and river benefit both a fort and traiding post?

106. ## Algebra 2

I've got some homework about ellipses and I am not sure if I am doing these right. So if you could check my answers I would appreciate it. Thanks!! 1.) Write an equation for an ellipse if the endpoints of the major axis are at (1,6) and (1,-6) and the

107. ## calculus

find the arc length from (x1,y2) to (x2,y2) on the graph F(x)=mx+b

108. ## Chemistry

A newly discovered giant planet has an aver- age radius 12 times that of the Earth and a mass 722 times that of the Earth. Calculate the ratio of the new planet’s den- sity to the Earth’s density.

109. ## education

According to Ch. 12 of the text, there are barriers that prevent the implementation of technology in classrooms. Based on your experiences or observations, what barriers exist that are not mentioned in Ch. 12? Discuss possible solutions to these barriers.

110. ## math

Each side of a square is lengthened by 8 inches. The area of this new, larger square is 196 square inches. Find the length of a side of the original square.

111. ## chemistry

In an atom, the maximum number of electrons having the quantum numbers n=5 and §¤ = 3 is: 1. 9. 2. 14. 3. 50. 4. 25. 5. 7. Shouldn't the maximum number be a lot bigger than the answer choices?

112. ## spanish

what does "contesta estas preguntas sobre ti, tu familia, y tus amigos" mean. does it mean answer the questions about yourself, your family, and your friends? does that mean i have to have 3 sentances for each question.

113. ## finite math

Assume that the student has a cup with 15 writing implements: 8 pencils, 5 ball point pens, and 2 felt-tip pens.In how many ways can the selection be made if no more than one ball point pen is selected?

114. ## chei

.0815moles NO are reacted with .0789moles O2 gas to from NO2 gas according to the following equation: 2NO + O2 = 2NO2 determine the molar amounts of NO, O2, and NO2 after complete reaction.

115. ## chemistry

.0815moles NO are reacted with .0789moles O2 gas to from NO2 gas according to the following equation: 2NO + O2 = 2NO2 determine the molar amounts of NO, O2, and NO2 after complete reaction.

116. ## physics

A jet plane lands with a speed of 101 m/s and can accelerate at a maximum rate of -4.60 m/s2 as it comes to rest. (a) From the instant the plane touches the runway, what is the minimum time needed before it can come to rest? ___s b)What is the actual

117. ## chemistry

.0815 moles NO are reacted with .0789moles O2 gas to form NO2 gas according to the following equation: 2NO +O2=2NO2 determine the molar amounts of NO, O2 and NO2 after complete reaction.

118. ## College Physics

A 3.0 kg black is at reat on a horizontal floor. If you push horizontally on the 3.0 kg block with a force of 12.0 N, it just starts to move. What is the coefficient of static friction?

119. ## chemistry

calculate the specific heat (j/g C ) for each of the following: -an 18.5-g sample of tin that absorbs 183 J when its temperature inceases from 35.0 degrees C to 78.6 degrees C

120. ## math

what are the prime factors of a number greater than 5 but less than 13. What is the number?

121. ## chemistry

the # of protons in an atom of sodium-23 is

122. ## Calculus

Find the exponential curve through (7, 10) and (9, 250). Recall that an exponential curve is one given by the equation y = A * bx (i.e. is the set of all points (x,A * bx).

123. ## physics

Peggy drives from Cornwall to Atkins Glen in 37 min. Cornwall is 74.8 km from Illium in a direction 22¡Æ west of south. Atkins Glen is 24.6 km from Illium in a direction 18¡Æ south of west. Use Illium as your origin. Find the displacement during the

124. ## chemistry

Which is an example of an anion? A. potassium B. ammonium C. sodium D. chloride

125. ## en forma estandar

como se escribe 423,090,709,000 en forma estandar

126. ## geometry

what is the formula to find a slope on a graph?

127. ## chemistry

2. 0.300 kilogram chloroform(chlorine calcium3)and 21.0grams eucalyptol(carbon10 hydrogen18 oxygen 3. what is the concentration of a solution of sodium chlorine water containing 1.170grams solute in 100moles solution 4, what is the % by volume of a

128. ## college - chem

how do i find the amount of moles of H2O in a hydrate?

129. ## chemistry

.0815 moles NO are reacted with .0789moles O2 gas to form NO2 gas according to the following equation: 2NO +O2=2NO2 determine the molar amounts of NO, O2 and NO2 after complete reaction.

130. ## statistics

Suppose you sample randomly, without replacement, a number between 1 and 999999, all outcomes have the same probability of being selected.What is the probability that the digits of the number selected add up to 23

y=4x^2-16x+12

132. ## English

can you help me to answer these questions? What lifestyles (lifestyle is a manner of living that reflects the person's values and attitudes) can people lead? What are the main differences among lifestyles? What do you have in mind when you speak about

133. ## algebra

here is the question: I am confused about the steps I need to follow to be able to complete this question some explanation will be appreciated :) In a Multiple - choice examination of 25 questions, four marks are given for each correct answer and two marks

134. ## science

is a firecracker exploding great example of potential energy or can I describe a better example

135. ## home economics

how many carreers can you get by doing home economics

136. ## physics

What is the average time interval between heartbeats? what is the average time between a hummingbird flaps its wing?

137. ## Calculus

Find the exponential curve through (7; 10) and (9; 250). Recall that an exponential curve is one given by the equation y = A ¢ bx (i.e. is the set of all points (x;A ¢ bx).

138. ## calculus

Assume the initial investment was \$6600 and the annual interest rate to be compounded continuously is 5%. Assume also that the target amount is \$7900. If you want the account to contain the target amount given above after 9 years, what yearly interest rate

139. ## algebra

In 1995, the life expectancy of males in a certain country was 70.1 years. In 1999, it was 73.6 years. Let E represent the number of years since 1995. The linear function E(t) that fits the data is E(t) =_____ t +______.(Round to the nearest tenth) Use the

140. ## math

write the multiplication/division fact family for 2, 7, and 14.

141. ## English

The stadium covers nine-and-a-half acres of land. Would the complete predicate be covers nine-and-a-half acres and the verb be covers?

142. ## English

In one room we saw several unusual computers. Would the complete redicate be unusual computers and the verb unusual

143. ## Math

distance problem suzi drove home at 60mph,but her brother jim,who left at the same time, could drive at only 48mph. When suzie arrived, jim still had 60 miles to go. How far did suzi drive?

144. ## Physics

PLEASE HELP!! The x and y cooridinates of an object are given by x(t) = 10t + 5t^2 + 3t^3 y(t) = 20t - 10t^2 + 2t^3 where x and y are in meters and t is in seconds. How fast is the object traveling at t = 1 s? Please explain in detail how to do this

145. ## history

how did the romans built cities and showed us how to organize these?

146. ## sociology

does diamond hurt the enviroment and do we choose profit over ou enviroment when it comesto diaond mining.

Hi i need help with solving this math question.Make an array for each of these number sentences.3*9=27 and 6*7=42

148. ## Math

Please explain why a positive number minus a negative number equals positive and you add it together??? Makes no sense at all. ex 10-(-3)=13

149. ## computer

Please help me with this if you don't mind Web page my home whole document with 2 links first page with 1 link selection with 1 link world travel framed page as shown with 1 link each frame separately with 3 links prices and packages - a single frame with

150. ## physics

How much force is needed to accelerate a 78kg skier 2m/s/s/

151. ## calc bc (condensed

is the limit as x approaches 0 of sin3x over 3x equal to zero? sorry-- basically this is my problem: lim [sin 3x / 4x) x-> 0 ~~~~I multiplied& eventually got to .75* lim (sin 3x / 3x) x-> 0 ~so i figured since (lim (sinx/x) x-> 0 was equal to zero, then

152. ## English

I forgot to include these other sentences. 1)They saw trading stations on the river bank consisting of just a broken-down building and a few white men occupying it. 2) Though the natives were like them, they felt frightened because they couldn’t

153. ## Math

Find: Re[1/(2+j)] Im[2+j/(3+4j)]

154. ## math

60/12x(4-1) 60/12x3 5x3=15

155. ## social studies

who arethe two french explorers who searched for the nortwest passage?/ what areas did they explorers and discover?

156. ## math

4 digit number. numeral in tens place 3 times the numeral in hundreds place. numeral in my ones place is 2 more than numeral in hundreds place. numeral in thousands place is 3 less than number in tens place. number in hundreds place is 3. what is number?

157. ## math

kara needs \$35 for an aquarium for 6 fish. How can she pay with the least ten and one dollar bill?

158. ## Math

find any stationary points of the function g(x) = (2x-3)square root of 5+16x-4x^2 (0 less than or equal to x less than or equal to 4) and use the first derivative test to classify each stationary point as a local maximum or local minimum of g(x) this is

159. ## Chemistry

NaOH+HNO3---> NaNO3+H2O calculate the number of moles of every ion present in solution after the reaction has occurred.

160. ## Calculus

Determine the equations of the following lines: (a) having slope ¡1 and passing through (0; 2) (b) parallel to y=2x-1 and passing through (¡2; 0) (c) passing through (1; 0) and (¡1; 3) (d) with x-intercept 6 and y-intercept 3.

161. ## math

SOLVE THE SYSTEM USING SUBSTITUTION MATH X-4Y=49 3Y-4Y=-66

162. ## chemistry

Which of the following has the greatest effect on the properties of an element? A. the number of ions B. the number of protons C. the number of neutrons D. the number of electrons

163. ## math

find the unknown number in equation 9s=17+1

164. ## MAth

explain how children's concepts of partitioning need to be refined to produce a concept of fractional parts

165. ## calc

Find an equation of the tangent line to the curve at the given point. y = 6 x sin x P= (pi/2 , 3pi) i know the slope of a tangent line is equal to the first derivative. For that I got 6xcosx + 6sinx but idk how to put that into the y-y1=m(x-x1) formula to

Larsen's class collected 137 cans. Schmidt's class collected 87 cans & Lopez's class collected 197 cans. Use mental math to see how many more cans Lopez's class collected than Schmidt's. (Got answer of 110) How many more cans did Larsen's class collect

167. ## 7th grade life science

list 10 importance of lifescince

what is social health? what is mental/emotional health?

169. ## English

Can you please check if the following sentences are grammatically correct? Thank you. 1) He invited him to his room for a drink and he accepted the invitation. 2) He spoke highly of Kurtz because he thought Marlow knew everything about the company. 3) As a

170. ## math

4 digit number greater than 8000 disvible by 5 sum of all digits equals 20?

simplfy (10x^2-6x-x^3)+(9x+x^3+5x^2) please show all work and steps i have been working on this problem for 10 minutes and still cant figure out how to do it.

172. ## Civics and Economics

what was the problem and solution in the Electoral College Compromise?

173. ## chemistry

Light sensitive materials are samples under yellow lighting. Please explain what yellow lighting means.

How did a bill become a law??

175. ## Chem

If the hydroxide ion concentration in a lake is 10‐10 M what is the lake’s pH?

176. ## Physics

at what velocity would a snowball melt before it hit the wall at 32 degrees?

177. ## English

Can you please check if the following sentences are possible? Thank you. 1)He sailed for Africa in a French steamer. At last they came to the mouth of the Congo river. The first company trading post Marlow saw was a depressing place. 2) African people were

178. ## chemistry

A hydrocarbon contains 4.65g of carbon and .382g of hydrogen. how many moles of each element are present in this compound?

180. ## chemistry

Which of these best describes energy? A. the emission of particles from unstable nuclei B. the capacity to do work C. the splitting of a nucleus D. the combining of nuclei

182. ## chemistry

Butlylated hydroxytoluene (BHT) is used as an antioxidant in processed food. (It prevents fats and oils from becoming rancid.) A solution of 2.500 g of BHT in 100.0 g of benzene had a freezing point of 4.880⁰ C. What is the molecular weight of BHT?

183. ## calculus

Suppose that f (x) is a function such that the relationship given below is true. f (3 + h) - f (3) = 9h^2 + 8h What is the slope of the secant line through (3, f (3)) and (7, f (7))? I am stuck on this one , tried every thing in the world. i don't know how

184. ## physics

A long jumper jumps at a 20 degree angle and attains a maximum altitude of .6 m. a)what is her initial speed? b)How far is her jump?

I need a list of 5 basic components of professional behavior. I have only come up with being on time, and respecting your co workers. can someone help me?

186. ## Algebra

need help in solving by substitution. We all have different steps and all arrive at 3 different ordered pairs. please help and show the steps for 7x+6y=15 and -7x+y=27. Thanks

187. ## English

What is the relationship between man and nature?

188. ## Calculus

Suppose that f (x) is a function such that the relationship given below is true. f (3 + h) - f (3) = 9h^2 + 8h (a) What is f '(3)? (b) What is the slope of the secant line through (3, f (3)) and (7, f (7))? Please do not use shortcuts(from future chapters)

189. ## math

how would you use the concepts from chapter 8 in real life situation? Decribe how these concepts might be useful

190. ## English

Every year the Astrodome attracts thousands of tourirts. Would the complete predicate be attracts thousands of tourists and verb be attracts

191. ## Cemistry

Can an object experience both a physical and chemical change at the same time?

192. ## geography

Using your knowledge of Location, Place and Region; you will draw to scale and to the best of your ability a map of the United States. I think I have the regions correct, but how do I label it for location and place?

193. ## English

1. What are your opening hours? 2. When are your opening hours? 3. What is your opening hours? 4. When doe the museum open? 5. We are closed on Mondays? (Would you check the sentences? Are all OK? What is the part of speech of 'closed'?)

194. ## Physics

A student travels 6.0 m [E] in 3.0 s and then 10.0 m [N] in 4.0 s. Draw a vector diagram to determine the resultant displacement. Q: How do you know where the starting point is on the graph?

195. ## Math

using the terms factor, divisor, multiple and divisible by, write as many statements as you can about the number sentence 4X7=28

196. ## chemistry

an organic iron compound consisting of Fe, C, H, and O was found to contain 51.043%C, 5.9886%H, 27.17%O, and 15.80%Fe. how many moles of each element are in 100g of the compound

197. ## IT210

Why do you think the requirements analysis process is so difficult? Describe two things you can do to overcome these difficulties. Post a Hello World pseudocode or coding example in your post.

198. ## sociology

identify two things that were considerd deviant in the past but are not considerd deviant now

Simplify 8(2^x-1)=64

200. ## chemistry

is INH(CH3)3 an acid, base or neutral?

201. ## math

Tonya and Lauren are designing a soccer uniform. They want to use two colorson the shirt. Their choices are green,orange,yellow, purple, blue, and silver.How many ways can they choose two colors?

i am a 3 digit number divisible by 3. my tens digit is 3 times as great as my hundreds digit and the sum of my digits is 15. if you reverse my digits i am divisible by 6 as well as 3. what number am i?

203. ## PreCal

log(5x+1)=2+log(2x-3) log(5x+1)-log(2x-3)=2 (5x+1)/(2x-3)=10^2 what do i do after that?

204. ## Math

What is the average births per day if the average birth per second is 4 1/5? What is the average deaths per hour if the average death per second is 1.7?

205. ## spanish

i need multiple responses to these questions im stuck 1. Hablen sobre los aparencias, creencias y aficiones de: -los hippies, los yuppies, los emo, los Y me 2. Lo que me encanta de ______ es que ... Lo que me fastidia de ______ es que... Lo que me

206. ## inglish

WHat is the relationship between man & nature?

207. ## Chemistry

.4941g of an iron-containing compound yielded .1116g of Fe2O3 upon oxidation. What is the mass percent of iron in the compound?

i need help with this problem what is the mode for the following number? 15,31,32,20,29,32,13 thanks!!

209. ## General information

Does this mean that we are allowed to copy this image and paste it somewhere else? This image may be subject to copyright.

210. ## calculus

Find the limit L. Then find delta > 0 such that |f(x) - L| < 0.01 whenever 0 < |x-c| < delta. lim x -> 4 (4- (x/2))

211. ## English

A: Oh, this is to Germany. How will you send it?+ B: By registered mail. (What is the meaning of 'this is to Germany'? What is the role of 'to' in this sentence?)

212. ## C1`

Use at least five adverbs and five adjectives to write a brief review of a movie, sporting event, musical performance, or television show. Bold each adverb. Underline each adjective. Compare the event to one or more similar events. When comparing, use at

I need the equation for these numbers: 3, 9, 19, 33, 51 I see that the pattern goes up by 6, then 10, then 14, then 18 (4 more each time)

214. ## Astronomy and Space

Using a telescope, which planets acn be observed from Earth in a crescent moon phase?

215. ## Chemistry

Sorry,please ignore my earlier post. Light sensitive materials are sampled in a room with yellow lighting. How is it different from normal white light?

216. ## English

We will be seeing it on our field trip to Philadelphia. would the complete predicate be will be seeing it on our field trip to Philadelphia and the verb be will be seeing?

217. ## Physics/Astronomy

What would a person's weight be on Mars compared to one's weight on Earth?

218. ## To:Ms.Sue

Sorry Ms.Sue but I have a question on the previous answer you gave me and I hope you don't mind answering it,thanks. Earlier you say "What examples do you know about the good that people do who contribute to the community? " Could you explain to me what

219. ## English

I'm writing my english on theme for a certain novel. What would be a good topic sentence to start my introduction off with?

220. ## xmgt216

• Write a 1,050- to 1,400-word paper addressing the following points: o Describe the moral and ethical issues faced by managers dealing with your selected topic. Include how the issue affects other individuals. o Explain how the relationship between

221. ## calculus

Suppose that a colony of fruit °ies is growing according to the exponential law P(t) = P0ekt, and suppose that the size of the colony triples in 11 days. Determine the growth constant k. [You may leave your answer as a fraction, with logarithm(s) in it.]

222. ## math

SOLVE BY SUBSTITUTION MATH...8X+5Y=-7 X=36-8Y

223. ## chemistry

the # of electrons in an atom of Iron-56 is

224. ## physics

If your car decelerates at a rat of 4.5 m/s2 how long will it take for your car to stop?????

225. ## chemistry

what particles with electrical charges repel one another

226. ## english

what is agood sentence for a word cofused

227. ## hist/135

•Submit a 150- to 200-word response explaining how Reagan’s policies reflected conservative politics and contributed to stimulation of the economy. Be sure to mention specific examples of policy

228. ## hist/135

o Describe the social, economic, and political composition of the decade of corporate greed and how it affected the political climate of the 1980s. Keep in mind that Reagan's tax policies favored some people over others.

229. ## algebra

r = 100/7

Ã©crire une expression Ã©gale Ã 2000 en utilisant une seul fois chacun des nombres 1;2;3;4;5

231. ## physics

A 200 kg motorcycle accelerates at 0.02 m/s2. What force produced this acceleration?

232. ## chemistry

Acids and bases react with one another to form compounds called ______? A. salts B. ions C. mixtures D. salts, ions, and mixtures

233. ## math

I don't understand this question so if you don't mind will you help me by showing work so I can understand. Monica has a backyard in the shape of a square. Which of the following is a possible are of the yard? A)32 square feet B)99 square feet C)64 square

234. ## Chemistry

How many moles of H2 can be produced from 7.74g SrH2? equation:SrH2 + 2H2O = Sr(OH)2 + 2H2

235. ## English

On the way home, we stopped at the Astrodome for a tour. Is the complete predicate we stopped at the Astrodome for a tour and the verb stopped?

236. ## preAlgebra

How do you do the problem -4-9

237. ## Astronomy

Do people wear seatbelts to protect themselves from speed or acceleration?

238. ## algebra

the perimeter of a rectangle is 222 inches. the length exceeds the width by 47 inches. what is the length and width

The number of electrons in an atom of Iron-56 is

240. ## math

(24-10)-3x3= 14-3x3 14-9=5

241. ## math

5(35-18)+1 5(17)+1 51+1=52

242. ## chem

one isotope of carbon has the atomic # 6+ the mass #14. An Atom of this isotope contain how many elctrons

243. ## US History

I don't understand what the difference was between the Lodge reservation and the Hitchcock reservation. Both reservations seem to be similar. I have to find a difference.

244. ## Biology

If the hydroxide ion concentration in a lake is 10‐10 M what is the lake’s pH?

245. ## math

why is 23 deficient?

246. ## algebra

Given the function f described by f(x)=12x, find each of the following: f(0) f(-1) f(2)

Simplify (10x^2-6x-x^3)+(9x+x^3+5x^2)

248. ## Physics

PLEASE HELP!! The x and y cooridinates of an object are given by x(t) = (10 m/s)t + (5 m/s2)t2 + (3 m/s3)t3 y(t) = (20 m/s)t - (10 m/s2)t2 + (2 m/s3)t3 where x and y are in meters and t is in seconds. What is the object's acceleration at t = 1 s? Please

249. ## MATH

whats the value of 0.4297

250. ## English

I am writing an essay on the worn path. This time I wrote this by myself. (Apart from a sentence). Could you tell me what I need to improve on? Love, the emotion of strong affection and personal attachment. "It erupts like an earthquake and then subsides."

251. ## calculus

f (4 + h) - f (4) = 4h^2 + 4h (a) What is f '(4)? (b) What is the slope of the secant line through (4, f (4)) and (7, f (7))?

m< =2x+6;m

254. ## physics

newton third law says that action and reaction are equal and opposite but if we throw wet soil on the wall it sticks to wall, it does not returns back, why it happens

255. ## chemistry

what is the freezing point ang boiling point of ah 5.00grams caffune(calcium hydrogen10 nitrogen4 oxygen2)and 250 mole H2O

256. ## math

What number divided by 2, 3, 4, 5, or 6 has a raminder of 1, but when divided by 7 has no remainder?

what's a good sentence for glacier

258. ## Math

Determine the value(s)of k that give the type of solution indicated: 2x^2+5x-2(k-1)=0. Show your work.

260. ## Calc

Find the domain. f(x)= 3 - 1/2x if x less than or equal to 2 = 2x - 5 if x > 2 Please help... an explanation would be wonderful, so I can understand how to do this.

make p the subject in both equtions ap+b=c-dp q - 1/2 p=6-3q

simplify (e is positive) (24e)^1/3 / (3e)^1/3

263. ## EDU

What are the positive and negative influences of the media on adolescents?

264. ## math

in right triangle find length of side not given b=1,c=square root of 26

265. ## English III

where would I look to find out what my last name.What is the country of origin of my last name

266. ## English

I need to write a paper on place. I've come up with a few ideas, but am unable to flesh them out. Some ideas are: imagination as a magical place, Israel, Governor's Island, and Around the watercooler. I need to be able to get 3 body paragraphs out of it.

267. ## 5

43x - 6 for an input of 4

268. ## Weather & Climate (science)

Why is it that an Aneriod Barometer Can be used to measure elevation as well as air pressure?

how will the value of 32,184,567 change if the number 2 is replaced by 9? this will be my last question for today thank you!!

270. ## science

how are alkali metals and alkali earth metals different?

271. ## math

(100-25)x2+25 75x2+25 150+25=175

272. ## Pre Calc

Derive the equation of the locus of all points that are equidistant from the point F(-3,4) and the line y=-2. Leave your answer in general form. [General Form: ax^2+by^2+cx+dy+e=0]

273. ## Sam Sharpe Teachers' College

what is the importance of air in combustion

274. ## math

kelly subtracted 2.3 from 20 and got 17.7.explain how this answer is reasonable

275. ## algebra help

Need help to simplify it. 3{-1+4[4-3(-4+5)]}=

276. ## english

i cant make sentence of excuse

277. ## English Literature

Unferth accuses Beowulf of "wantonly tempting the waves" and risking his life for a "silly boast." Given what Beowulf and the narrator say about Unferth, how is Unferth's comment a reflection back on himself? How does it apply when we think about Grendel?

278. ## pre algebra

evaluate (m+n)-3 power if m=-1 and n=-5

279. ## English

American patriots hid the bell from the British army. What would be the complete predicate and verb?

280. ## social studies

in the first chapter of the book,section 1 review.i need help with number 3 and 4. number 3 is in what ways did native american cultures shares traditions and knowledge. and #4 is how do the mound builder societies provide evidence of the spread of

281. ## algebra

Given the function f described by f (x) - 12x, find each of the following: f(-11) f(12) f(29)

282. ## algebra

Find the indicated outputs for f(x) =4x^2 -4x f(0) f(-1) f(2)

283. ## Healthcare Communication Strategies

I am trying to write a paper on Communication Theory, which was due last night, I got majority of it done but I am stuck, can you help me to finish it please, I currently work In a Primary Care Clinic on a Naval Base, and in this paper I need include how

284. ## calc bc

is the limit as x approaches 0 of sin3x over 3x equal to zero? thank you!

285. ## verb and noun

how do I know where is the noun and verb of this sentences. Guess who came to the party? The dog ranto the window.

286. ## algebra

1/3-4(4/7 + 5)

287. ## Calculus

Suppose that f (x) is a function such that the relationship given below is true. f (3 + h) - f (3) = 9h^2 + 8h (a) What is f '(3)? (b) What is the slope of the secant line through (3, f (3)) and (7, f (7))?

288. ## Math

I need a good explination to understand why a positive number minus a negative number equals a positive or in other words you add it. ex 10-(-5)= 15

289. ## math

how to simplify (x^3-x)/(x-1)

290. ## Interview

I'm going to be interviewing someone on the topic " Contributing to the communities" and then turn it into an essay. So I'm wondering if you guy can give me some ideas and question on what to ask the person( The person I'm interviewing is a teacher)?

291. ## training and development(CHURCH)

hi, may i know what are the training objective of the church?when they train people?how the training is conducted? please i don't know any about church

R = 100/T

293. ## math

i need help on doing 442 mi in 8.5 hr and i don't know how to do it can you help me?

294. ## math

7.36+w=8.94 8.94-7.36=1.58 w=1.58

295. ## English

In 1972, the bell was cracked by its own clapper. What would be the complete predicate and verb?

296. ## chemistry

determine the boiling point and freezing point of the following solution 1. 5.00grams caffune (calcium hydogen10 nitrogen4 oxygen2)and 250moles H2O

The amount you pay for your wants/needs... (5 letters, 4th letter is "e")

298. ## oil spill

Does anybody know if the BP oil spill from this year is over?

299. ## math

What time of function is this? 5x^(-3)+4x^(-2)+4 Power function?

301. ## algebra

Why is it important to simplify radical expressions before adding or subtracting?

302. ## Science

A truck is going from 20 km/h to 59 km/h in .20 hours, has an acceleration of what?

303. ## Math

You and a friend both take a math examination. You score a 98 out of 100 points and your friend scores 96 out of 100 points. Who scored better? Explain

304. ## art/101

· Write a 200- to 300-word summary that answers the following: o Summarize the reaction of the public to Michelangelo’s David and Marcel Duchamp’s Nude Descending a Staircase. o What did contemporary viewers find objectionable about each work? o What

what is the value of x in the equation 25=10+? please! help me one more time.

306. ## math

15-18/9+3 15-2+3 13+3=16

307. ## science

how is it possible to have a negative sun angle?

140/297

309. ## math

m+18=78 78-18=60 m=60

310. ## english

The Pennsylvia Assembly ordered the Liberty Bell. What would be the complete predicate and verb?

311. ## chemistry

how to simplify (x 3-x)/(x-1)?

312. ## math

what do you divide 83 and 100 with to get to 5/6

313. ## english

does anyone know the definition to the word a."extrinsic" b."arousal"

314. ## chemistry

how to simplify ((x^3)-x)/(x-1)

315. ## BIS155

can i get help with this class

2k+3=15 k=4 but prove why this is true using what you already know

317. ## art

who is picasso?

318. ## math

the unit rate for 442 mi in 8.5 hr