# Questions Asked onMarch 4, 2012

1. ## Chemistry

If the charge to mass ratio of a proton is 9.58 x 10^7 coulomb/kilogram and the charge is 1.60 x10^-19 coulomb, what is the mass of the proton?

2. ## calculus

Consider the curves y = x^2and y = mx, where m is some positive constant. No matter what positive constant m is, the two curves enclose a region in the first quadrant.Without using a calculator, find the positive constant m such that the area of the region

3. ## math

A park has the shape of a trapezoid. Two of the sides are 25 meters long. The other two sides are 40 meters and 20 meters long. What is the perimeter of the park my answer is 110 meters

4. ## Chem 2

A popular buffer solution consist of carbonate (CO3 2-) and hydrogen carbonate (HCO3-) conjugate acid-base pair. Which, if any of the following such buffers has the highest buffer capacity? A. 0.9M CO3 2- and 0.1M HCO3- B. 0.1M CO3 2- and 0.9M HCO3- C.

5. ## PHYSICS

Two crates , one with mass 4.00 kg and the other with 6.00 kg, sit on the frictionless surface of a frozen pond, connected by a light rope. Awoman wearing golf shoes(so she can get traction on the ice)pulls horizontally on the 6.00-kg crate with a force F

6. ## chemistry

Arrange the species O2, O2^+, O2^-, and O2^2- in order of increasing O-O bond length.

7. ## health 3 ms sue

Resistance exercises improve muscular strength in persons with such conditions as ________. A. Multiple sclerosis and stroke B. Cerebral palsy and spinal cord injuries C. Cognitive disability D. All of the above d

8. ## Math

At a certain time, a verical pole 10 feet tall casts a 14-foot shadow. What is the angle of elevation of the sun to the nearest degree?

9. ## Math

A farmer plans to enclose a rectangular pasture adjacent to a river. (see figure). The pasture must contain 320,000 square meters in order to provide enough grass for the herd. What dimensions will require the least amount of fencing if no fencing is

10. ## statistics

what is the probability of observing three or fewer 6s when rolling a fair die twenty times?

11. ## Stats

When sampling is done for the proportion of defective items in a large shipment, where the population proportion is 0.18 and the sample size is 200, what is the probability that the sample proportion will be at least 0.20

12. ## Early childhood literacy

"Let me in"said the pin.This is an example of: A .Assonance B .A metaphor C .Alliteration D .Personification. I chose A

13. ## geometry

A flower bed in the corner of your yard is in shape of a right triangle. The perpendicular sides of the bed measure 6 feet 8 inches and 8 feet 4 inches. Calculate the area of the flower bed.

A Health Care Administrator has been hired by an, Ambulatory health care setting. What should the health care administrator expect to encounter in this type of health care setting, and how would the health care deal with issues or the different encounters

15. ## calculus

Evaluate the definite integral:

16. ## Math

A plane is flying at an altitude of 12,000 feet and is preparing to land at a nearby airport. The angle from the airport to the plane is 17. To the nearest tenth of a foot, how far is the airport from the plane?

17. ## Chemistry

A sample of gas at 47 C and 1.03 atm occupies a volume of 2.20 L. What volume would this gas occupy at 107 C and 0.789 atm?

18. ## Astronomy

The frequency of a radio transmitter is 90 megahertz. What is its wavelength?

19. ## physics

A subway train is designed with a maximum acceleration of +0.17 m/s2, which allows for both passenger safety and comfort.

20. ## Chemistry

N2(g) + H2(g) -> NH3(g) ; how many moles of NH3 is is produced when 0.67 moles of N2 reacts with H2?

21. ## Chemisty

Let's explore the efficiency of chloride ion precipitation in seperating Ag^+ from Pb^2+ in a solution. Suppose that [Pb^2+]= 0.045 mol/L and [Ag^+]= 0.084 mol/L. Calculate the chloride ion concentraion required to just start precipitation of Pb^2+ ion and

22. ## algebra

Courtney's dog sleeps in a crate that is 40 inches wide, 30 inches tall, and 44 inches deep. What is the volume of the dog crate?

23. ## physics

What is the rms value of the electric field in a sinusoidal electromagnetic wave that has a maximum electric field of 64 V/m?

24. ## Calculus

A sporting goods store sells 100 pool tables per year. It costs $20 to store one pool table for a year, based on the average inventory on hand. It costs$40 for each delivery of pool tables. How many times per year and in what lot size should the store

25. ## geometry

ABCD is a quadrilateralwith vertices A(2;5),B(-3;10),C(-4;3) and D(1;-2).then show that BD and AC bicect each at right angles at M.

26. ## Math

In XYZ, what is the cosine ratio of

27. ## Biology multiple choice question

If a randomly-mating population has an established frequency of 64% for the organisms homozygous dominant for a given trait, what is the frequency of this dominant allele in the gene pool? A. .2 B. .24 C. .36 D. .8 E. .64 I think the answer is D. .8

28. ## 7

What is intensity? A. How hard a person plans to do an activity B. How easily a person is able to do an activity C. How hard a person works to do an activity D. How difficult it is for a person to complete an activity

29. ## Physics

A 933 kg block is pushed on the slope of a 20 ◦ frictionless inclined plane to give it an initial speed of 50 cm/s along the slope when the block is 1.5 m from the bottom of the incline. The acceleration of gravity is 9.8 m/s 2 . 1.5 m 933 kg 20 ◦ What

30. ## algebra

select a set of equations.mary invested one amount a %10 simple invest, and a second amount at %3 interest, earning $21.72 in one year. If she would have earned$15.07. What were the two amounts?

31. ## chemistry

what is the density of a sample of 65.0 ml of automobile oil having mass of 59.82 g

32. ## English

Writeacher,I need you help to work out the questions to the following answers (You have already checked). 1) Which pattern does Robinson's education of Friday recall? What advantages does Robinson have over Friday? Robinson’s education of Friday recalls

33. ## science

A woman sues a man for the support of her child. She has type A blood, her child type O, the man type B. could the man be the fatherÉ Explain.

34. ## chemistry

At 25 C the following heats of reaction are known: 2CIf (g)+ O2(g) -> CL2O (g) + f2O Delta H rxn= 167.4 kj/mol 2CIf3(g) + 2O2 (g)-> Cl2O(g) + 3F2O(g) Delta H rxn= 341.4 2F2(g) + O2(g) -> 2F2O(g) Delta H rxn= -43.4kj/mol at the temperature, use Hess's Law

35. ## Finance

I'm conducting a research paper about financial crisis of 2008 and would like some input. Which is better, regulating banks or deregulating banks? Why?

36. ## algebra

Four friends together earned 128 mowing lawns. After paying an amount g for gasoline, they shared the money equally. Which equation shows the amount of each friend will receive? A. f(g) = 128 - g/4 B. f(g) = 128/4-g C. f(g) = 128-g/4 D. f(g) = 128-g-4

I'm Studying For My Business Cycle Test and I'm finding it for hard to remember all the elements of the micro market and market environment so I was just hopeing someone could have like a catchy sentence for the elements in each environment e.g takeing the

38. ## Physics

A man with a mass of 60 kg skis down a frictionless hill that is h = 2.2 m high. At the bottom of the hill the terrain levels out. As the man reaches the horizontal section, he grabs a 20-kg backpack and skis off a 2.0-m-high ledge. At what horizontal

39. ## Physics

A pole-vaulter of mass 60.2 kg vaults to a height of 6.1 m before dropping to thick padding placed below to cushion her fall. (a) Find the speed with which she lands. (b) If the padding brings her to a stop in a time of 0.52 s, what is the average force on

40. ## algebra

Diene claims that f(x)=3/x is its own undo rule. Is her conjecture correct?

41. ## Science

Determine the genotypes of the parents. One parent has AB blood and the other has type B, but the children, 25% are type A, 25% are type AB, and 50% have type B blood.

42. ## MATH (ASAP)

Jay and Tia are planning to buy snack chips. • Individual bags of chips cost $3.00 each. • Each case of chips contains 10 bags and costs$25.00. a. If Jay buys 1 case of chips, what is the cost per bag? Show or explain how you got your answer. b. How

43. ## physics

If the radius of the Earth somehow bloated to twice its size, with no changes in mass, your weight at the Earth's new surface would be ___A) one-quarter.B) one eighth.C) the same.D) twice.E) half.

44. ## Chemistry

Arrange the species O2, O2^+, O2^-, and O2^2- in order of increasing O-O bond length.

45. ## physics

Which of these three produces a greater tidal effect on you right now—the moon, the Earth, or the sunA) The sun.B) The Earth.C) The moon.

46. ## General Chemistry 1

Gaseous hydrocarbons, which contain only carbon and hydrogen, are good fuels because they burn in air to generate large amounts of heat. A sample of hydrocarbon with mass 1.48 g exerts a pressure of 1.32 atm in bulb with volume 967 mL at 21.5 oC. Molar

47. ## Physical Chemistry

Calculate the value of the change in enthalpy(H) when the temperature of 1 mole of a monatomic gas is increased from 25C to 300C.

48. ## Physics

1) Let's continue to investigate your space vacation from last week. Your spaceship, which has a proper length of 300 m, passes near a space platform while you are moving at a relative speed of 86% the speed of light (so v=0.86*c). What is the length of

49. ## physics question

1) Let's continue to investigate your space vacation from last week. Your spaceship, which has a proper length of 300 m, passes near a space platform while you are moving at a relative speed of 86% the speed of light (so v=0.86*c). What is the length of

50. ## Chem

the standard molar enthalpy and entropy of the denaturation of a certain protein are 512 kj/mol and 1.60 kj/K. mol, respectively . comment on the sign s and magnitudes of these quantities, and calculate the temperature at which the process favors the

51. ## Physics

What is the time it takes a mosquito to flap its wings once if the frequency of their wing beats is 440Hz?

52. ## Physics

A./_\ B.\_/ C.|_| The three tanks shown above are filled with water to an equal depth. All the tanks have an equal height. Tank A has the greatest surface area at the bottom, tank B the least and tank C the middle. (Select T-True, F-False, G-Greater than,

53. ## PHYSICS

A hockey puck with mass 0.160 kg is at rest at the origin (X = 0)a player applies a force of 0.250 N to the puck, parallel to the x- axis; he continues to apply this force until t = 2.00 s. a) What are the position and speed of the puck at t = 2.00 s? b)If

54. ## Math

Darby guesses the answers to six questions on the math portion of her college entrance exam. Each question is a true or false question. What is the approximate probability that at least 4 of her answers are correct? A. 0.23 B. 0.34 C. 0.66 D. 0.78

55. ## 9

What can health care providers do to help promote physical activity initiatives? A. Absolutely nothing, they do enough B. Advise patients on physical activity and how they can do it safely C. Advise patients on how to avoid physical activity D. Advise

56. ## Biology

Individuals whose characteristics are well-suited to their environment survive. Individuals whose characteristics ar not well-suited to their environment either die or leave fewer offspring. This principle Darwin called survival of the fittest. how i

57. ## algebra

When graphing the equations y = 2x – 2, y = 2x, and y = 2x + 3, what observation can you make about the graphs. Can you make the same observation before graphing the lines? How?

58. ## com/156

Part 2: Paraphrasing and Quoting Review the following passage and paraphrase the long passage in the following box. Use the reference to create an appropriate APA-formatted, in-text citation. Additionally, include one direct quotation. One of the most

59. ## physics

A pendulum with 1kg weight is set in motion from a position .04 m above the lowest point on the path of the weight. What is the kinetic energy of the pendulum at the lowest point?

60. ## Internet Basics

A unique feature of which browser is an opening screen that features a different image each day with embedded links? A. Chrome B.Internet Explorer C. Bing D. Safari I chose C

61. ## L.O

What,according to the BCEA applies with regard

62. ## health 4 sue

What is premature death? A. Dying at the average age of death for a specific population group B. Dying after the average age of death for a specific population group C. Dying earlier than the average age of death for a specific population group D. Dying

63. ## Geometry

Two rectangles are similar the ratio of the lengths of their corresponding sides is 1:2 find the ratio of the peremeters of the two rectangles the find the ratio of the areas explain your answers

64. ## physics

The angle through which a rotating wheel has turned in time t is given by \theta = a t - b t^2+ c t^4, where \theta is in radians and t in seconds.

65. ## statistics

Class frequency 5-29---------------2 30-54--------------------3 3 55-79--------------------4 80—104 5 105-129 2 130-154 1 155-179 1 PC =3(X-Median)/s median = L +((N/2) – CF)/f *(h) L=55 (N/2)=9 h=24 f= 4 It is says that median is 77.5, and I could not

1-The roots of x2 - 6x + m - 3=0 are x1 and x2.If 2x1 - 3x2= 2 is given, find m? 2-Given the inequalities x-2 ______ < 0 and x2 - 4x - 5

67. ## algebra

a pond surface has a diameter of 200 ft. around it is a walkway of 10 ft. what would be the area of the walkway?

68. ## Chemistry(Please check, thank you!)

I completed a lab to find the determination of Kc. I have to find the concentrations of reactants at equilibrium using an ICE table. The equation that were are using is Fe^3+(aq) + SCN^-(aq) -> Fe(SCN)^2+(aq) I have to create 5 ICE tables because we used 5

69. ## Chemistry

What concentration of chloride ion is required to precipitate 99.9% of the lead ion from a solution with [Pb^2+]= 0.045 mol/L ?

2x=y+1/2 how do you turn this equation into an equation that is ax+by=c? Please help and explain. Thank you.

71. ## Algebra 1

In 1993, the life expectancy of males in a certain country was 67.2 years. In 1999, it was 70.3 years. Let E represent the life expectancy in year t and let t represent the number of years since 1993. The linear function E(t) that fits the data is E(t)=_t

72. ## Calculus

The fuel efficiency, E, in litres per 100 km, for a car driven at speed v, in km/h is E(v)=1600v/(v^2+6400). a) Determine the legal speed speed that will maximize the fuel efficiency if the speed limit is 50 km/h. The answer is 50 km/h but my teacher said

73. ## geometry

you want to buy a pickup truck and are interested in one with a large carrying capacity. One model features a rectangular prism-shaped cargo space, measuring 6ft by 10ft by 2ft;another has a space with dimensions 5ft by 11ft by 3ft. Which truck provides

I'm trying to figure out what the answer would be to this question... a single serving container of yogurt has a capacity of 8 ____. My choices are oz,lb, T,fl oz, c, pt, qt,or gal. I was originally thinking oz but that is weight and not capacity. Then I

75. ## Chemistry

Why can a buffer be created by the addition of sodium hydroxide to acetic acid, but not from the addition of sodium hydroxide to hydrochloric acid?

76. ## Chemistry

Consider the following electron configuration. (σ3s)2 (σ3s*)2 (σ3p)2 (π3p)4 (π3p*)4 Select four species that, in theory, would have this electron configuration.

77. ## calculus

If u = log(r), where r^2 = (x-a)^2 + (y-b)^2, and (x-1) and (y-b) are not zero simultaneously, show that d^2u/dx^2 + d^2u/dy^2 = 0. I first used some of the properties of log and made u = 1/2 * log((x-a)^2 + (y-b)^2) Then made u = 1/2 * ln((x-a)^2 +

78. ## Hearne High

Find the exact value of each of the other 5 trigonometric functions for the angle of theta (without finding theta) when cos theta is 3/5

79. ## math, algebra

Tina is trying to drop a water balloon from her balcony onto a rectangular raft in the pool below. The pool is 25 feet long and 15 feet wide. The raft is 6 feet long and 2 feet wide. What is the probability that Tina will hit the raft with the water

80. ## volume,mass,weight

if you travelled to a planet that had twice the force of gravity of earth and you have taken a small mass that is 1kg what is the mass weight and volume of the 1kg object on the new planet compared to earth

81. ## Math/116 week seven

solve by the substitution method. 2m+n=1 m-9n=10

82. ## MGT/350

Are there differences in the tools and techniques between big and small companies?

83. ## math HELP PLZ DO MINE

There are 64 kids in the swimming pool there are 8 more girls than boys How many Boys are there?

84. ## Chemistry II

For the titration of 50.00 mL of 0.106 M NH3 with 0.225 M HCl, calculate (A) the initial pH and when the pH neutralization is (B) 25.0% complete (C) 50.0% complete (D) 100.0% complete

85. ## Chemistry

Write the net ionic equation for the precipitation reaction between ammonium sulfide and cadmium nitrate.

86. ## physics

Two charged particles of equal magnitude (+Q and −Q) are fixed at opposite corners of a square that lies in a plane (see figure below). A test charge +q is placed at a third corner. +Q +q −Q What is the direction of the force on the test charge due to

87. ## physics

The relative humidity is 55% on a day when the temperature is 30.0°C. Using the graph below, determine the number of moles of water vapor per cubic meter of air

88. ## chemistry

How many grams of water are required to dissolve 27.8g of NH4(NO3)(MM=80.05 g/mol)to make a 0.500M solution?

89. ## Biology

I'm confused on the rule of multiplication and the rule of addition. When do I use each to determine the probability of a genetic trait being inherited.

90. ## physics

A fuzzy die (m = 0.2 kg) hangs from the ceiling of a car. When the car accelerates forward along a horizontal road, the die swings backward so the the string supporting it makes an angle of 4o with the vertical. What is the acceleration of the car?

91. ## physics

A 5 kg magnet exerts a constant force of 3 N on a 0.25 kg magnet. What force will the smaller magnet exert on the larger magnet?

92. ## physics

A 5 kg magnet exerts a constant force of 3 N on a 0.25 kg magnet. What force will the smaller magnet exert on the larger magnet?

93. ## physics

A 5 kg magnet exerts a constant force of 3 N on a 0.25 kg magnet. What force will the smaller magnet exert on the larger magnet?

94. ## English

Thank you, Writeacher. I left out these other sentences. Can you please check them? I left out these other sentences. 1)Macbeth urges her husband to put on his nightgown and pretend he has just awakened. 2)She wanted to defeat her main rival: Spain. 3)She

95. ## Physics--Newtons Second Law

A high diver of mass 60.0 kg steps off a board 10.0 m above the water and falls vertical to the water, starting from rest. If her downward motion is stopped 1.80 s after her feet first touch the water, what average upward force did the water exert on her?

96. ## Physics Help

What is the energy stored in the inductor shown in the figure after the switch has been closed for a very long time? Take V = 15 V, R = 600 §Ù and L = 10 mH.

97. ## Physics

The force exerted by the wind on a sailboat is approximately perpendicular to the sail and proportional to the component of the wind velocity perpendicular to the sail. For the 792-kg sailboat shown in the figure below, the force exerted by the wind on the

98. ## math

If a student's percentile rank in a class of 400 students is 87, find the student's class rank.

99. ## calculus

A plane flying horizontally at an altitude of 1 mi and a speed of 500 mi/h passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it is 2 mi away from the station. I drew a diagram and

100. ## APUSH help reqired ASAP

Describe the growth in America's postwar economy. The answer must include the following terms. 1) Taft Hartley Act. 2) GI BillofRights. 3) Suburbs. 4) Levittown. 5) Sunbelt.

101. ## math

There is a lap swimming pool is a rectangle with the depth of 4.5 feet. If the water is doubled is it the width, length, and depth doubled?

102. ## health

Regular physical activity appears to reduce symptoms of ________ for children and adolescents. A. Anxiety and depression B. Low self-esteem C. Identity or role confusion D. All of the above i goty c

103. ## college algebra

use properties of logarithms to find the exact value of the expression. sqrtlog81 3

How do you turn these equation into a standard form? this is the standard form: ax+by=c here are the following equations: 2x = y + 1/2 y - 2 = 1/4x + 1 3y + 3 = 6x - 15 Please help and explain. Thank you.

105. ## calculus

F(x)= ((x^2+2x)/(x^2-1) )^3 *(3x^2 – 2x + 4)^5

how do you make an equation that is parallel to another equation? how do you make an equation that is perpendicular to another equation? please help and explain. Thank you.

A sporting goods store sells 100 pool tables per year. It costs $20 to store one pool table for a year, based on the average inventory on hand. It costs$40 for each delivery of pool tables. How many times per year and in what lot size should the store

108. ## physics

Mars Rover When the Mars rover was deployed on the surface of Mars in July 1997, radio signals took about 12 min to travel from Earth to the rover.How far was Mars from Earth at that time?

109. ## Legal Environment of Bus

Ethics Question (Legal Environ of Bus)? Various industries have lobbied for legislative restrictions on tort liability. The nuclear power industry has long been protected by a statute that limits its upper-dollar liability in the event of a serious

110. ## chemistry

Arrange the species O2, O2^+, O2^-, and O2^2- in order of increasing O-O bond length.

111. ## English - Native speakers

Question: Which 2 answers are correct? Which is not and why? 1. Sorry, I can't. I'm seeing my grandmother. 2.Sorry, I can't. I'm going to see my grandmother. 3. Sorry, I can't. I'll see my grandmother.

An example of a muscle strengthening activity includes ___________. A. Zumba fitness B. Jumping jacks C. Aerobics classes D. Lifting weights IT GOT B

113. ## chem

calculate the delta Hf of c6h12o6 (s) from the following data: Delta H combustion= -2816 kj/mol delta Hf of Co2 = -393.5 kj/mol delta Hf= of H2 O= -285.9kj/mol

114. ## 1

Which age groups benefit from physical activity? A. Children B. Middle aged adults C. Older adults D. All of the above d

115. ## physics

A physics student playing with an air hockey table (a frictionless surface) finds that if she gives the puck a velocity of 5.30 m/s along the length (2.80 m) of the table at one end, by the time it has reached the other end the puck has drifted 5.19 cm to

116. ## 2

Exercise can help prevent _________. A. Heart disease B. Colorectal cancer C. Type 2 diabetes D. All of the above d

117. ## chemistry

the thermochemical equation for th edissocation of hydrogen gas into atoms may be written : h2-> 2H delta H 1824.2 what is the ration of the energy yield on combustion of hydrogen atoms to steam to yield ion combustion of an equal mass of hydrogen

I completed a lab to find the determination of Kc. I have to find the concentrations of reactants at equilibrium using an ICE table. The equation that were are using is Fe^3+(aq) + SCN^-(aq) -> Fe(SCN)^2+(aq) I have to create 5 ICE tables because we used 5

119. ## math

Evaluate the expressions: 15*(80 +170)/5^2= 160/2^4+2^7-75=

120. ## 3

Resistance exercises improve muscular strength in persons with such conditions as ________. A. Multiple sclerosis and stroke B. Cerebral palsy and spinal cord injuries C. Cognitive disability D. All of the above d

121. ## algebra

M times 2/3 equals 1 - 13/15

122. ## physics

work done by force is given w=f.s.show that w=delta k?

123. ## chemistry

Suppose you run a total of 4.35 miles in 58.75 minutes. If you want to determine your average running speed in units of km/hr, how many significant digits will your final answer have?

124. ## Calculus 3

Find the limit, if it exists, or show that the limit does not exist. lim of x+y/y^2-x^2 as (x,y) approaches the point (-1,1).

125. ## Calculus

Could someone help me with these questions. If an equation s(t)=t^3 - 2t^2 + 1 describes an object's motion in metres, at what time t, in seconds, will the object be stationary? a) 1s b) 0s and 4/3s c) 0s d) 4/3s -------------------------------------- A

126. ## Chemistry

There are _______ oxygen ions in 1 mole of Na2O. A. 6.0 x 10^23 O2 ions B. 1.2 x 10^24 O2 ions C. 3.0 x 10^23 ions D. None of these

127. ## Chemistry

In 1 mole of CaCl2 there are ____ moles of chloride ions. A. 1 B. 2 C. 0.5 D. None of these

128. ## Chemistry

How many moles of water are in 1.0g of water? (Give number only in space below to the correct number of significant figures)

129. ## Highline Community College

Suppose that the marginal revenue for a product is given by the following, where x is the number of units and revenue is in dollars. MR = −28 (2x + 2)2 + 28 Find the total revenue.

130. ## 4

What is premature death? A. Dying at the average age of death for a specific population group B. Dying after the average age of death for a specific population group C. Dying earlier than the average age of death for a specific population group D. Dying

131. ## Statistics

The average age of vehicles registered in the united states is 96 months, with a standard deviation of 16 months. If a random sample of 36 vehicles is selected, find the probability that the mean of their ages is between 90 and 100 months. Provide four

132. ## 5

What can architects do to help promote physical activity initiatives? A. Construct buildings with active options such as, access to stairs B. Create buildings that do not allow handicap access C. Avoid providing efficient methods of walking within and

133. ## correct a sentence

I asked Shirley If she would ever have any problems, she would call us imediently

134. ## Physical Science

An athlete wants to finish a 5K face in 25 minutes. If she runs at a constant speed of 3.4 m/s, will she meet her goal?

135. ## english

im doing an essay on why success can be bad or change someobody for the worst & im using two celebrity examples. my first example is lindsay lohan. whats another example of a celebrity that has changed for the worst because or success, or a celebrity that

136. ## statistics

the correlation between two tests given to 100 students in the junior clas is .70 the mean for the first test was 125 with standard deviation 20 the mean of the second test is 80 with standard devation 10 a student took the first test and scored 100. what

137. ## geometry

you want to buy a pickup truck and are interested in one with a large carrying capacity. One model features a rectangular prism-shaped cargo space, measuring 6ft by 10ft by 2ft;another has a space with dimensions 5ft by 11ft by 3ft. Which truck provides

138. ## Piz Help Anyone !!!!!!!!!!!!!!!!!

Is women's history month capitalization?

139. ## Physics

How do i determine the mass of ice initially in the calorimeter when dry saturated steam is passed into 250g of a mixture of ice and water in a calorimeter of thermal capacity 45J/K when all the ice has just melted,and the mass of the content in the

140. ## 6

The best physical activity is one that is ________. A. Enjoyable enough to bring along a snack B. Enjoyable enough to be lulled to sleep C. Enjoyable enough to do regularly D. All of the above c

141. ## statistics

Here are some statistics using GSS 2008 data: RACE OF RESPONDENT n 2023 Mean 1.32 Median 1.00 Mode 1.00 Standard deviation 0.631 Variance 0.399 Explain what is wrong with this output.

142. ## Math

Find the point on the graph of the function that is closest to the given point. Function Point f(x) = x^2 (16, 1/2) (x, y) = ( ) ?

143. ## calculus

Find the intervals on which the f(x)= cos^2x is concave up and concave down.

144. ## English

Write a passage using rhetorical device on aperson,idea or ideology in about 300words

145. ## Physics

Calculate the gravitational force between two identical 100-kg masses separated by 1 m.

146. ## college algebra

solve the equation below. Please show all work. log3(x/2-9)=4

147. ## english

Use the following words in sentences as directet:1-rain(verb)2-water(verb)3-light(adjective)4-trip(noun)5-air(noun)

148. ## ALG WORD PROBLEM

Loan Mixture: A student takes out a total of $5000 in three loans: one subsidized, one unsubsidized, and one from the parents of the student. The subsidized loan is$200 more than the combined total of the unsubsidized and parent loans. The unsubsidized

149. ## geography

how the hydrological cycle takes place

150. ## Physics

A ball is throwing downward with an initial velocity of 10 m/sec. If the final velocity is 20 m/s, what is the time?

151. ## Physics

Two vectors are at right angle to each other as shown. Find the resultant vector (the sum of the two vectors).

152. ## golf view

Explain how the graph of sin2 theta relates to y=sin theta

153. ## Physics

A Ferris Wheel with a radius of 15 meter makes one complete rotation every 10 seconds.

154. ## physics

If the height of the water slide in the figure below is h1 = 1.55 m and h2 = 1.35 m, and the person's initial speed at point A is 0.593 m/s, at what location does the swimmer splash down in the pool?

155. ## college algebra

solve the logarithmic equation. Please show all work. log5x+log5(x-3)=log5(x+5)

156. ## English

Thank you, Writeacher. Here are some other sentences I need you to check. 1) Your paragraphs show a poor knowledge of grammar as well as of word accuracy (correctness, property) and cohesion. 2)The choice of tenses is often wrong since you mixed present

157. ## Physics

At a given instant in time, a 10-kg rock is observed to be falling with an acceleration of 7.0 m/s2. What is the magnitude of the force of air resistance acting upon the rock at this instant?

158. ## Physics

For a rider with a mass of 50 kg, what is the magnitude of the centripetal force required to keep that rider moving in a circle? Is the weight of the rider large enough to provide this centripetal force at the top of the cycle?

159. ## chemistry

How many grams of ice at -11.2 degrees C can be completely converted to liquid at 29.8 degrees C if the available heat for this process is 4.12×10^3 kJ? For ice, use a specific heat of 2.01 J/(g*degrees C) and delta H_fus = 6.01 kJ/mol.

160. ## chemistry

A buffer is prepared by adding 300.0 mL of M NaOH to 400.0 ML of 2.0 M CH3COOH. What is the pH of this buffer? ks=1.8X10^-5

161. ## hindi

what type of an introduction and completion will be good for an essay?

162. ## English

I included the mistakes as well as the corrections. Can you please have a look at them, Writeacher? Thank you. 1) "Elizabeth I applied a strong policy and she could repulse the Spanish Armada." Elizabeth I adopoted a vigorous foreign policy, which enabled

163. ## reimbursement methodologie

you've been hired as the inpatient coderin the hospital's health information management department.Explain how your job will affect hospital billing and reimbursement. 2.You've just taken a job as a billing specialist,Describe the step-by step process that

164. ## english

I need help writing an illustration paragraph on the topic: saying no. I have to include the following devices 1 acyndeton, 1 polysyndeton, 2 interrupted movement, 2 parallel, 1 freight-train

165. ## English

I did some of the corrections myself. I find it really hard to check all the grammar mistakes. Could you please help me, Writeacher? Thank you. 1) Lady Macbeth doesn't show typical female character because she is the driving force of the play. 2) She

166. ## test

If you used the rule (1/2x,1/2y)to to transform the original figure,how would the angles and sidelengths compare.

167. ## English Literature

Can I please get help on the mood and atmosphere created by Allen Curnow in his poem "Continuum"? Thanks.

168. ## calculus

Find the first derivative for, (e^(x)+ e^(-x))^2

Which economic system is the best solution to handling a crisis of epic proportion

170. ## calculus

find the volume of the solid of revolution obtained by revolving the region bounded above by the curve y=f(x) = √16-x^2 and below by the curve y=g(x) from x=0 to x=x√2 about the x-axis

171. ## math

Bob’s Barber Shop estimates their gross revenue for the second quarter to be given by the polynomial 7x3 + 6x2 – 6x – 3. The shop estimates their costs for that quarter to be given by 6x2 – 9x + 9. For the second quarter, find and simplify a

172. ## Calculus

Could someone help me with these questions. If an equation s(t)=t^3 - 2t^2 + 1 describes an object's motion in metres, at what time t, in seconds, will the object be stationary? a) 1s b) 0s and 4/3s c) 0s d) 4/3s -------------------------------------- A

What is a good way to start a essay for admninstrative justice class?

174. ## Chemistry

What is the Henderson-Hasselbach equation? Use the equation to determine the ratio of [A-] to [HA] necessary to create an ammonium chloride/ammonia buffer with a pH of 8.50. Describe how to make this buffer given a solution of 0.1 M NH3 (aq) and a bottle

175. ## Math

Determine the representation in the frequency domain function f (t) below, through the table of Laplace transforms: f (t) = 6e ^ -(0,2+3t ) f (t) = e^-t sen(3t)

176. ## math

If you used the rule (1/2x,1/2y)to to transform the original figure,how would the angles compare. How would the side lengths compare.

177. ## Algebra

The vertices of a kite have coordinates (14,2), (10,-4), (6,2), and (10,y). If the kite has an area of 64 square units, what is the value of y?

178. ## physics

Ricardo and Jane are standing under a tree in the middle of a pasture. An argument ensues, and they walk away in different directions. Ricardo walks 22.0 in a direction 60.0 west of north. Jane walks 10.0 in a direction 30.0 south of west. They then stop

218. ## ap chemistry

how do you do an ice table?

219. ## math/ geometry

1. Determine the truth value of the following statement: Rome is a city in France or all numbers are divisible by 1. True False

220. ## Physics

A 10 kg block rests on a frictionless table and is whirled in a circle and kept in a radius of 1.6 m by a rope attached to a peg. What is the tension in the rope if the block has a linear speed of 18 m/s? __N

221. ## trig

Verify the trigonometric identity. Please show all steps. tanx-cotx/tanx+cotx=sin^2x-cos^2x

222. ## spanish

what time do restaurants open and close in Mexico? I'm making a menu for a restaurant in Mexico and I need to know what time it opens and closes. What is the usual time

223. ## Engish

I need to find the statment of life in the call of the wild by jack london

224. ## math

a flagpole cast a shadow that is 26ft long. At the same time, a yardstick cast a shadow that is 4ft long. How tall is the flagpole

225. ## physics

A rescue airplane is flying horizontally at a height of 3.0 km with a speed 272 m/s when it releases a package of emergency food supplies. How far horizontally in meters does the package travel while it falls before it hits the ground?

226. ## physics

A major league pitcher can throw a baseball in excess of 41.3 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 16.1 m away from the point of release?

227. ## calculus

show that an integral of the form ∫00,a e^(-px) dx is convergent if p>0 and divergent if p

228. ## physics

Why is your weight not one-quarter as much when you climb to the top of a twice as tall tree? A) Because, quite simply, of Newton's law of action and reaction.B) Because parts of the tree itself gravitationally attract you.C) But it is, in accord with the

229. ## English

These are other sentences I need you to check, Writeacher. Thank you. 1) Lady Macbeth was tired to be (better: of being ) just Lady Macbeth because she really wanted to be the queen (queen). 2) "Lady Macbeth is a very strong character because she ignored

230. ## physics

Two horse pull horizontally on ropes attached to a stump. The two forces f1 and f2 that they apply to the stump are such that the net(RESULTANT) force R has a magnitude equal to that of F and makes an angle of 90 with F1. Let F1=1300 N and R =1300 N also.

231. ## trig

if cot(x-10)=tan(4x) what does x equal?

232. ## statistics

John drives to work each morning and the trip takes an average of µ = 38 minutes. The distribution of driving times is approximately normal with a standard deviation of ó = 5 minutes. For a randomly selected morning, what is the probability that John’s

233. ## chemistry

1)100ml sample of solution that is 0.2m in both Naf and Hf has 4.0 ml of 1.0m hcl added to it. calculate the ph change of this soultion .ka =7.2*10^-4 2)40 ml of 0.32m benzoic acid if titrated with 60 ml of 0.2 m naoh. clacilate the ph of the resulting

234. ## math

if i have a 34 foot vehicle that needs to enter a building throw a 15 foot door and there is a slope of 2 feet to 0 feet what is the distance the slope must have to allow the vehicle to enter

235. ## Biology

my sister still be sick so i still helping her post questions. i write paragraph from her textbook that go with question. Ultimately, Darwin recognized in nature a process that operates in a manner similar to the way artifical selection worked on farms and

236. ## algebra

solve by using the square root method: (5y+4)^2+100=0

237. ## math

a bag contains one red and one white marble.A second bag contains two red marbles and a white one.How many different outcomes are possible if a marble is picked from each bag?The marbles are replaces each time.PLS help :)

238. ## Probability

Thank you for the explanation MathMate! Would the answer to this question be A? Darby guesses the answers to six questions on the math portion of her college entrance exam. Each question is a true or false question. What is the approximate probability that

239. ## chemistry

True or false? Constitutional isomers and conformations have the same molecular formula.

240. ## astronomy

What is the tempertaure range for objects whose wavelength at maximum falls within the visible spectrum, 400 to 700 nm?

241. ## life orientation

What according to the basic conitions of employment act applies with regard to the contraventions that you have identified?

242. ## math

12 students wanted to go on a field trip. that was 3/4 of the class. how many students are in the class

243. ## Science-Physics

A pendulum with 1kg weight is set in motion from a position .04 m above the lowest point on the path of the weight. What is the kinetic energy of the pendulum at the lowest point?

244. ## life orientation

What unethical behaviour is taking place in the case study? Name two

245. ## Humanities/World Literature

Why, according to the Quran, does God cause Israel to wander the desert for 40 years?

247. ## Humanities/World Literature

1.Why does the demon collect her lovers' rings in _1001 Nights_? 2.What is the purpose of Shahryar and Shahzaman's journey in _1001 Nights_?

248. ## Physics

If a ball were to fall off a 180cm table,how fast would it be going halfway to the ground?

249. ## Mat/117 App F

1. Suppose you are an event coordinator for a large performance theater. One of the hottest new Broadway musicals has started to tour and your city is the first stop on the tour. You need to supply information about projected ticket sales to the box office

250. ## maths

If I have a 3 didgit number - a 3 didgit number = a 3 didgit number but the numbers used are 1-9 and only can be used once what are the numbers? please help me i have been trying all week

251. ## Mat/117 Concept

• If you are looking at a graph of a quadratic equation, how do you determine where the solutions are? Please provide and example.

252. ## Astronomy

What is the Lorentz factor for a spaceship traveling at 0.5c?

253. ## chemsitry

1)100ml sample of solution that is 0.2M in both Naf and Hf has 4.0 ml of 1.0M hcl added to it. calculate the ph change of this soultion .ka =7.2*10^-4 2)40 ml of 0.32M benzoic acid if titrated with 60 ml of 0.2 M naoh. clacilate the ph of the resulting

254. ## math(mechanics 1)

a car traveling on a straight road accelerates uniformly at a meter per second square from its initial speed of 20 meter per second until it reaches a speed of 30 meter per second. the car travels at this speed for 600 meter and then decelerates uniformly

255. ## chemistry

"Following the reaction of zinc with hydrochloric acid, a secondary reaction can occur if a product of the first reaction is ignited. Write the complete reactions for both reactions." "If 2.75g zinc with 0.15 moles HCL, how much flammable product can be

256. ## Math

What is the final step to determine the product of 3/8 and 4/5?

257. ## Biology

two negative effect of direct artificial selection?

258. ## science

compare&contrast warm front &cold front

259. ## Chem

determine the final temperature of a system after 100.0g of zinc ( specific heat .3876 J/g c) at 95.0 C is immersed into 50.0 g of water at 15.C

260. ## math

Emory is mounting 3 shelves of 12 3/4 in apart on a wall. If each board is 3/4 in. thick, what is the total vertical space occupied by the set of shelves?

261. ## astronomy

How fast must a spacecraft travel to reach the center of our Galaxy (26,000 ly away) in 100 tears "ship time"?

262. ## chemistry

3. Complete the following word equation and write the balanced formula equations: a. Zinc(s) + iodine(g) b. Hydrogen peroxide(l) c. Magnesium(s) + lead(IV) nitrate(aq)

263. ## chemistry

1. Heat can initiate reaction as well as be a product of chemical reactions. Cite the specific sample from the experiment that show heat acting in the manner 2. Aluminum chloride was a product in step 6. How could you instruct your lab partner to recover

264. ## physics

how much force can be applied to the top block without the blocks slipping apart

265. ## physics

how much force can be applied to the top block without the blocks slipping apart

266. ## math

Show me the fully formula for 3x+4y=10 2x+y=5 simultaneously solve x and y

267. ## Math

At a certain time a verical pole 10 feet tall casts a 14-foot shadow. What is the angle of elevation of the sun to the nearest degree?

268. ## math

find the circumfrence of a compact disk having a diameter of 4 and 3 4ourths in.

269. ## Math

A steamer goes 91 mi up a river in 6.5 h. The return trip is scheduled for 3.5 h. What is the rate of the water?

How do the surface proteins on a virus help it to invade a host cell?

271. ## Math

In Triangle XYZ, what is the cosine ratio of

272. ## math / geometry

Write the argument below in symbols to determine whether it is valid or invalid. State a reason for your conclusion. Specify the p and q you used. Submit your full detailed solution to the dropbox. If the gazebo is made of wood, then the vine is growing on

273. ## physics

Placing a tube, with a radius of .30 cm, vertically into a barrel with a radius of 21 cm it was found that when the barrel was filled with water and the tube filled to 12 m the barrel burst. Calculate the mass of water in the tube and the net force exerted

274. ## science

if you add 100mL of water at 20 degree celisus to 200mL of water at 20 degree celisus what does the thermal energy do for the combined mixture?

275. ## chemistry

True or false? Constitutional isomers and conformations have the same molecular formula.

How do I Calculate the final temperature of 299ml of water initially at 31 degrees upon absorption of 19kj of heat?

277. ## physics

Consider the low-speed flight of the Space Shuttle as it is nearing a landing. If the air pressure and temperature of the shuttle are 1.2 atm and 300 K, respectively, what is the air density? Note: 1 atm = 101325 N/m^2. Hint: Use ideal gas law!

278. ## chemistry

Choose the type of shape that best matches to CH4. Linear Trigonal planar Bent Tetrahedral Pyramidal

279. ## chemistry

a 205 mg sample of diprotic acid is dissolved in enough water to make 250 ml of solution. The pH of this solution is 2.15. A saturated solution of calcium hyrdoxide (Ksp=1.3*10^-6) is prepared by adding excess calcium hydroxide to water and then removing

280. ## algebra

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -8x – 2y = -28 -3x + 5y = 47

281. ## 10 ms sue

How can communities and government help promote physical activity initiatives? A. Raise taxes B. Lower taxes C. Create walking trails D. Eliminate sidewalks i got c

282. ## 11 ms sue

What is bone strengthening? A. Activities that produce a force on the bones that promote bone growth and strength B. Activities that produce greater elasticity of joints C. Activities that heal injuries and diseases associated with the bones D. None of the

283. ## Probability

Darby guesses the answers to six questions on the math portion of her college entrance exam. Each question is a true or false question. What is the approximate probability that at least 4 of her answers are correct? A. 0.23 B. 0.34 C. 0.66 D. 0.78

284. ## physics

A 0.125 kg cart rolls along a metal track with a kinetic energy of 0.25 J. How high up an inclined metal track will the cart roll?

285. ## Physics

When standing erect a person's weight is supported chiefly by the larger of the two leg bones. Assuming this bone to be a hollow cylinder of 2.5 cm internal diameter and 3.5 cm external diameter, what is the compressive stress on the bone (in each leg) in

286. ## 12

The new Physical Activity Guidelines for Americans allows a person to accumulate 150 minutes a week ________. A. By engaging in 30 minutes of physical activity for 5 days a week only B. By engaging in 50 minutes of physical activity for 3 days a week only

287. ## 13

Children and adolescents are considered to be reflected in which age group? A. 6-17 years old B. 3-17 years old C. 5-17 years old D. 10-17 years old c

288. ## Early Childhood Literacy

Words are : A . Convenient Communication shortcuts B .Not arbitrary symbols C .Unique to each individual in English D .Thoughts written down. I chose D

289. ## geometry

the shadow of a tree is 8 feet long. How long of a shadow does a 6 foot man cast?

290. ## 14

The key to using a pedometer to meet the Physical Activity Guidelines for Americans is to _________. A. First set a time goal and then calculate how many steps are needed each day to reach that goal B. First set a time goal and then calculate how rigorous

291. ## 15

An example of a muscle strengthening activity includes ___________. A. Zumba fitness B. Jumping jacks C. Aerobics classes D. Lifting weights b

293. ## physics

A diver with a mass of 70.0 kg stands motionless at the top of a 3.0 m high diving platform. Calculate his speed when he enters the pool. Thanks so much for helping!

294. ## 16

If older adults are at risk of falling, they should do exercises that maintain or improve ________. A. Flexibility B. Muscle strengthening C. Mobility D. Balance d r b

295. ## Probability

Darby guesses the answers to six questions on the math portion of her college entrance exam. Each question is a true or false question. What is the approximate probability that at least 4 of her answers are correct? A. 0.23 B. 0.34 C. 0.66 D. 0.78

John is making a sundae. If there are 13 flavors of ice cream, 9 different toppings, and 4 types of nuts, how many different sundaes can he make if he chooses one of each?

297. ## 17

People who regularly engage in at least moderate intensity aerobic activity have a significantly lower risk of developing ________ than do inactive people. A. Lung cancer B. Type 2 diabetes C. Hip fractures D. Breast cancer b

298. ## Algebra 2

What is the probability when you roll 2 dice and you roll a number greater than 4 on the first dice and a 2 on the second dice? pls help :)

299. ## 18

What is an example of how adults can develop knowledge to attain goals if running is a goal: A. Learn how to reduce the risk of running injuries by selecting an appropriate training program and proper shoes B. Purchase clothes that appeal to the opposite

Sarita works 2 days each week. If her office is open 7 days each week, use pascal's triangle to find the probability that she will be scheduled for Wednesday and Saturday next week. A. 2/7 B. 1/14 C. 1/21 D. 1/42

301. ## 19

Healthy pregnant and postpartum women should get at least ________ of moderate-intensity aerobic activity a week. A. 60 minutes B. 150 minutes C. 30 minutes D. 200 minutes b

302. ## physics

A wire 453 m long is in a 0.2 T magnetic field. A 2.56 N force acts on the wire. What current is in the wire? Answer in units of mA