# Questions Asked onOctober 24, 2015

1. ## Calculus 1

Find the number c that satisfies the conclusion of the Mean Value Theorem on the given interval. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(x) = sqrt(x), [0,16]

2. ## math

Can someone please help me/ Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is \$2 and the profit on every wrap is \$3. Sal made a profit of \$1,470 from lunch specials last month. The equation 2x +

3. ## Physics!!!!

3. You push your physics book 1.50 m along a horizontal table- top with a horizontal push of 2.40 N while the opposing force of friction is 0.600 N. How much work does each of the following forces do on the book: (a) your 2.40-N push, (b) the friction

4. ## algebra

The difference of a number and 3 is the same as 39 less the number. Find the numbet?

5. ## Mathematics

The first and third term of a Gp are 5 and 80 respectively.what is the 4th term?

6. ## astronomy

The red supergiant Betelgeuse has a surface temperature of 3600 K. a) Using the fact that the Sun's surface temperature is about 5800 K and that its continuous spectrum peaks at a wavelength of 500 nm, find the peak wavelength of Betelgeuse's continuous

7. ## Physics (Biomechanics)

Scott is rolling down a 30° slope on his skateboard.The total mass of Scott and the skateboard is 75 kg. The rolling friction between the skateboard wheels and the concrete is 9 N acting backward against the skateboard. The drag force due to air

8. ## Physics!!!!222

2. A 75.0-kg painter climbs a ladder that is 2.75 m long leaning against a vertical wall. The ladder makes a 30.0° angle with the wall. (a) How much work does is done by gravity on the painter? (b) Does the answer to part (a) depend on whether the painter

9. ## Chemistry

What mass of liquid water at room temperature (25◦C) can be raised to its boiling point with the addition of 43.0 kJ of energy? Answer in units of g.

10. ## Mathematics

If the first term of an Ap is equal to one half of the common differences,d, find the 8th term of the Ap

11. ## Mathematics

The 2nd and 5th terms of a Gp are -5 and 48 respectively.find the sum of the first four terms.

12. ## math

A hollow cylinder with outer radius r0 and inner radius ri is loaded by a uniformly distributed load q across its length L. The beam is supported by a roller at its left end and a pin L5 from its right end. What is the maximum bending moment in the beam?

13. ## Physics

As shown in the figure below, we have three air carts (labeled #1, #2, and #3) on an air track. The carts are equipped with spring bumpers so that all collisions are elastic. The masses of the carts are m1 = 5m, m2 = 2m, and m3 = m. Initially, cart #1 is

14. ## Children Development

In what ways have factors from Microsystems outside the family, from the mesosystem, and the exosystem possibly influenced your child’s development at ages 6, 8 and 10? Find four examples of such influences and make clear why you believe they should be

15. ## math

Suppose N(t) denotes a population size at time t where the dN/dt=0.03 N(t). If the population size at time t=4 is equal to 100, use a linear approximation to estimate the size of the population at time t=4.1.

16. ## History

) How did the federal government use tariffs in the late 1800s to help the United States grow into an industrial power? A) to tax U.S. industry as a source of federal income B) to convince other nations to buy newly available U.S. products C) to support

17. ## Government

How does the public express their political views?

18. ## Physics

Why would a graph of force vs position not be uniform??

19. ## Chemistry

In winemaking, the sugars in grapes undergo fermentationby yeast to yield CH3CH2OH and CO2. During cellularrespiration, sugar and enthanol are "burned" to water vapor andCO2. A) Using C6H12O6 for sugar, calculate ÄH of fermentation and of

20. ## Chemistry

Calculate the change in internal energy of the following system: A 100.0-g bar of gold is heated from 25 C to 50 C during which it absorbs 322 J of heat. Assume the volume of the gold bar remains constant.

21. ## Trigonometry

Two circles, whose radii are 12 inches and 16 inches respectively, intersect. The angle between the tangents at either of the points of intersection is 29'30'. Find the distance between the centers of the circles.

22. ## physics

4. A mover wants to push a box down a hall. The mover applies an ‘action’ force on the box (the push). According to Newton’s 3rd law, there is a ‘reaction’ force applied in the opposite direction. The larger the action force applied by the mover,

23. ## math

Suppose f(t) is the weight (in grams) of a solid sitting in a beaker of water and the solid is dissolving at a rate (in grams/minute) of f'(t) =-4 f(t)(3 + f(t) ). If there is 4 grams of solid at time t=2 minutes, use a linear approximation to estimate the

24. ## English

When would using an image be unnecessary? Give an example. For this assignment, answer the following questions in essay form. Each answer should be in complete sentences and 200--500 words long. ~~ Could someone please help me answer this question? If you

25. ## English

I am writing an essay and my directions say to choose one character from The Call of the Wild and explain how the author created him or her. Does this mean to like explain who the character is and the things they do and say? If not please explain this to

26. ## Thermophysic and electromagnetisme

A tank of volume V = 2.0 l will burst if the pressure exceeds 100 atm. The tank is filled with 6.0 mole of an ideal gas at a temperature of 23 ° C. We heat the tank. a)What is the initial pressure in the tank? b)At what temperature we can heat the tank

27. ## epcc

How many moles of aluminum ions are present in 0.80 mole of Al2(SO4)3

28. ## math

Suppose f(t) is the weight (in grams) of a solid sitting in a beaker of water and the solid is dissolving at a rate (in grams/minute) of f'(t)=-4 f(t)(3 + f(t) ). If there is 4 grams of solid at time t=2 minutes, use a linear approximation to estimate the

29. ## math

Three cards are selected at random without replacement from a well-shuffled deck of 52 playing cards. Find the probability of the given event. (Round your answer to four decimal places.) Three cards of the same suit are drawn

30. ## astronomy

The luminosity of the Sun is 4*10^33 erg/s, and its radius is 7*10^10 cm. What is the flux of sunlight on the Earth? i answer flux = luminosity/4pi*d^2 = 4*10^33/4pi*49*10^20=.....0,0064994151*10^13=6.49*10^10 erg/cm^2/sec thank you .please help me...

31. ## math

Suppose f(x)=ln x. (a) Find the linear approximation of f at a=1. L(x)= (b) Use the linear approximation to estimate ln 1.27. ln1.27=

32. ## geometry

given angle a is parallel to angle b and the measure of angle 7 is 94 find the measure of angle 10 and angle 9 someone please help me on this ! 😫

33. ## Physics

1. A student librarian picks up a 2.2 kg book from the floor to a height of 1.0 m. He carries the book 5.3 m to the shelves and places the book on a shelf that is 0.65 m above the floor. How much work does he do on the book?

34. ## Physics

2. A 75.0-kg painter climbs a ladder that is 2.75 m long leaning against a vertical wall. The ladder makes a 30.0° angle with the wall. (a) How much work does is done by gravity on the painter? (b) Does the answer to part (a) depend on whether the painter

35. ## MAth

2+3m=17 7 6 10 5 use inverse operations to solve each equation. Explain each step and identify the propaty used to reach steps. 19=h/3-8 solve the equation : expiation each step and identify the property used to reach each step 0.6x+0.8=1.4 thanks

36. ## d

twice of a number added to half of itself equals 20. find the number.

37. ## Chemistry

In winemaking, the sugars in grapes undergo fermentation by yeast to yield CH3CH2OH and CO2. During cellular respiration, sugar and enthanol are "burned" to water vapor andCO2. Write a combustion reaction for ethanol. I need help with balancing the

38. ## physics

A body of mass 0.4kg moving with constant speed of 10m/s to north is subjected to a constant force of 8 N directed towards the south for 30s. Take the instant the force is applied to be t=0, the position of the body at that time to be x=0 and t =-5s and

39. ## Physics

A puck of mass 0.03 kg slides across rough ice, experiencing a frictional force of 0.2 N. If it was moving at 36 m/s when I hit the ice patch, A) How long did it take to stop? B) What was the length of the ice patch? I know I have initial velocity, mass

40. ## Math

what is an equivalent ratio for 65:390

41. ## chemistry

an acid-base neutralization is the reaction of a)H2(g) with O2(g) to form H2O(l) b)H2(aq) with OH-(aq) to form H2O(l) c)H+(aq) with o2(g) to form H2O(l) d)H+(aq) with OH-(aq) to form H2O(l) e)Na+(aq) with OH-(aq) to form NaOh(aq)

42. ## chemistry

An aqueous solution contains three solutes. One liter contains: 0.200 moles of calcium chloride, 0.150 moles of magnesium chloride, and 0.750 moles of sodium chloride. How many grams of Cl are there per liter of this solution? a. 39.0 g b. 51.4 g c. 78.0 g

43. ## Math

What is domain for 1/x

44. ## Chemistry

In winemaking, the sugars in grapes undergo fermentationby yeast to yield CH3CH2OH and CO2. During cellularrespiration, sugar and enthanol are "burned" to water vapor andCO2. A) Using C6H12O6 for sugar, calculate ÄH of fermentation and of

45. ## Language arts

Which of the following nouns from the selection is a proper noun? garden*** soil Sandy environment

46. ## physics

projectile l (height) l (canon's velocity>) /--------------------l (distance) I did a mock of the picture provided. Here it is showing a cannon shooting a banana to the monkey on top of a tree. It gives you no numbers. Question: Derive a general equation

47. ## History

Can someone please check my history answers/questions? Thank you very much for your help! 1) How did the federal government use tariffs in the late 1800s to help the United States grow into an industrial power? A) to tax U.S. industry as a source of

48. ## Algebra

A student keeps track of his target heart rate when he is exercising. The range for the number of heart beats per minute R for someone his age is /R-136/ less than or equal to 20. Determine the solution to the inequality. I believe the answer is:

49. ## English

How to do the Calypso (from th odyssey book) GN page

I hsve a hard time understanding this reading: "Mediating Infanticide" by Charles Briggs. I do not understand what he is arguing! What is communicable cartography in Briggs' terms?

51. ## physics

Calvin is pulling Hobbes on his sled with a force of 45 N [30o above the ground]. The mass of Hobbes and the sled is 18 kg and the coefficient of friction between the sled and the ground is 0.25. Determine a) the net force in the vertical. in this case is

52. ## kon

can someone edit my essay?

53. ## AP Physics

A ball is kicked 30º above the horizontal with an initial velocity of 20m/s. A fence 2.3 meters high is located 32 meters away. a. How long does it take to reach the fence? b. Does it goes over the fence? Does it hit the ground before? By how much? I

1/3 3/4 3/10

55. ## English & Comp.

Are these right? I wasn't sure of 2 of them. It'll be in parenthesis. Literary Allusion -(Ross’s line in Shakespeare’s Macbeth): “Let not your ears despise my tongue forever.” 26. - the principle guiding the art of writing effectively, eloquently,

56. ## poetry

What is the meaning of the poam OLVIDO by Octavio Paz

57. ## Physics

A car is traveling North. In which direction are the wheels turning. This is under the torque chapter

58. ## astronomy

A geosynchronous satellite is a satellite whose orbital period matches the rotation of the Earth. Calculate the height above the surface of the Earth which a satellite must have in order to be in a geosynchronous orbit. (Please enter your answer in units

59. ## astronomy

Which of the following two telescopes has a better angular resolution? 1) the Hubble Space Telescope (2.4 meter aperture) at optical wavelengths and 2) the Very Long Baseline Array (VLBA), a radio interferometer with a maximum baseline of 8600 km observing

60. ## History

why is population data an estimate rather than an actual count

61. ## Qibing

Briefly explain why a business would write off depreciation on its assets?

62. ## Child development

n what ways have factors from Microsystems outside the family, from the mesosystem, and the exosystem possibly influenced your child’s development at ages 6, 8 and 10? Find four examples of such influences and make clear why you believe they should be

63. ## Chemistry

Energy in the amount of 479 J is added to a 89.0 g sample of water at a temperature of 8.00◦C. What will be the final temperature of the water? Answer in units of ◦C.

64. ## Pre- Algebra

Error Analysis: Describe and correct the error in the problem below. When asked to translate the following: The difference between 15 and the product of 5 and y, Brandon writes 5y - 15.

65. ## Chemistry

3490 J of heat are added to a 20.4 g sample of iron at 20◦C. What is the final temperature of the iron? The specific heat of iron is 0.449 J/g · K. Answer in units of K.

66. ## Chemistry

In winemaking, the sugars in grapes undergo fermentation by yeast to yield CH3CH2OH and CO2. During cellular respiration, sugar and enthanol are "burned" to water vapor andCO2. A) Using C6H12O6 for sugar, calculate ÄH of fermentation and of

67. ## trigonometry

solve for equation x(give answer in radians using exact values only. 2sin(x)+cot(x)-csc(x)=0

69. ## English

What does President Snow mean when he says, “…you have provided a spark which left unattended may grow into an inferno…”?

70. ## Health

What are five indicators of project failure

71. ## trignometry

Give a list of solutions, in the interval [0, 360°), in degrees, of the equation 2cos^24θ + 5 cos 4θ = 3.

72. ## trignometry

Some equations cannot be solved by symbolic manipulations. Use a graph to find all solutions of the equation sin 8x = 2x - 1. Show the details in a sketch of the graph.

73. ## Physics

A rocket blasts off from rest and attains a speed of 42.3 m/s in 13.8 s. An astronaut has a mass of 70.2 kg. What is the astronaut's apparent weight during takeoff?

74. ## chem

A 1.5-L container of liquid nitrogen is kept in a closet measuring 1.2 m by 1.2 m by 1.8 m . Assume that the container is completely filled to the top with liquid nitrogen, that the temperature is 21.8 ∘C, and that the atmospheric pressure is 1.2 atm .

75. ## physics

Calvin is pulling Hobbes on his sled with a force of 45 N [30 degrees above the ground]. The mass of Hobbes and the sled is 18 kg and the coefficient of friction between the sled and the ground is 0.25. What would the net force be in this case? 0?

76. ## Math

I need help please: Express in symbols:"Six decreased by the product of a number and six is twenty."

77. ## physics

Derive a general equation for the time of flight of the banana en route to the monkey in terms of only the velocity, distance, and height (as labelled in the graph above). hint: if you are doing everything right, there should be a lot of cancellations

78. ## physics

You have two cylindrical solenoids, one inside the other, with the two cylinders concentric. The outer solenoid has length ℓouter = 400 mm, radius R outer = 50 mm, and N outer = 2000 windings. The inner solenoid has length ℓinner = 40 mm, radius R

79. ## Calculus 1

Verify that the function satisfies the three hypotheses of Rolle's Theorem on the given interval. Then find all numbers c that satisfy the conclusion of Rolle's Theorem. (Enter your answers as a comma-separated list.) f(x) = x^3−x^2−20x + 7, [0, 5]

80. ## Physics

A car is traveling North. In which direction are the wheels turning. This is under the torque chapter

81. ## MATH

Simplify the expression. Use only positive exponents. (−2x^−3 y^−2 )^−1 = _________________ (x^3y^3z^3 ) −4

82. ## physics

An 18 kg curling stone sliding on a sheet of ice hits a rough patch on the ice where the coefficient of friction increases from 0.13 to 0.28. It enters this rough patch with a speed of 2.2 m/s and leaves with a speed of 1.4 m/s. How long is the rough

83. ## math

Sum of first 20 tems of an AP is 1/3 of the next 20 terms. If first term is 1. Find the sum of first 30 terms.

84. ## Math🤓

Stanley ordered a pizza that was cut into eight pieces. If he ate 3/7 of the pizza, how much was left? So far the only thing I can think of is multiplying 3/7 by 8

85. ## Physics

what is the total displacement of a runner which finish the 1-km race in just 10 seconds

May has 20coins for icey Karla has 5 times more coins how much coins does Karla have for Icey A. 200 B. 5 C. 100 D. 20 I chose C 100 is my answer correct ??????

87. ## Astronomy

Which process explains why the terrestrial planets do not have hydrogen and helium in their atmospheres? thermal escape (??) condensation out gassing solar wind

88. ## Maths

Find the physical area between the curves y=sin(2x) and y=cos(x) from x=pi/2 to x=3pi/2

89. ## public law N6

The manner in which cases are brought from the lower court for revision purposes

90. ## chemistry

In a standardization titration involving hydrochloric acid and sodium carbonate, a student recoirded the following results for the volume of hydrochloric acid used against 10.00mL of the sodium carbonate solution : 15.60; 14.50; 14.70 aqnd 14.20. If the

91. ## math

If a^4+b^4=23Ã—a^2Ã—b^2, show that log(a^2+b^2)=log 5+log a+log b.

92. ## cava

What is the best order-of-magnitude estimate for 0.00003?

93. ## germain

What is the best order-of-magnitude estimate for 0.00003?

94. ## chemistry

1.43.4 kcal of heat is required to decompose 2 mole of mecury(II) oxide according to the equation 2HgO(s)➡2Hg(l) + O⬇2(g) . What quantity of energy is required to decompose 10.8g of HgO ? (Hg=200.59, O=16)

95. ## Physics

Consider a road over a hill where the top is shaped like a circular bump. This circular arc has its center in the hill below. As a 1200 kg car rounds the top of a hill at a speed of 20.0 m/s, it very breifly loses contact with the pavement. What is the

96. ## chemistry

The molar heat capacity of Al is 24.4j/mol. How much heat is required to heat 100g of Al from 20 to 80? Al=27

97. ## algebra

In a northern European country, the formula y=0.036x 2 −2.8x+62.56 models the number of deaths per year per thousand people, y , for people who are x years old, 40¡Üx¡Ü60 . Approximately how many people per thousand who are 57 years old die each

98. ## simple interest rate

Suppose you borrow RM 5000 today and are required to pay interest of RM 200 for a one year period. What is the simple interest rate?

99. ## use auxilary verb in bracket

i wish to take a break.i'm so tired.(do)

100. ## math

Let L1 be the line passing through the points Q1=(−2, −5, 4) and Q2=(4, −1, 2) and let L2 be the line passing through the point P1=(10, 8, −7) with direction vector →d=[1, −1, 2]T. Determine whether L1 and L2 intersect. If so, find the point of

101. ## physics

A baseball is thrown at an angle of 21 ◦ relative to the ground at a speed of 22 . 7 m / s. The ball is caught 35 . 1474 m from the thrower. The acceleration due to gravity is 9 . 81 m / s 2 . How long is it in the air?

102. ## physics

An astronaut on the Moon throws a stone from the top of a cliff. The stone hits the ground below 21.0 seconds later. The acceleration due to gravity on the moon is 1.6 ms–2. what is the initial vertical velocity?

103. ## ELA

John Quinn does not explain the rule about the paddle to Paul, the narrator of “The Pigman & Me.” How does this one action affect the rest of the essay? SRRY

104. ## english

what is a run-on sentence?

105. ## Chemistry

How many nanoliters of a 1.00 molar solution would be required to react with 5.00 grams of barium nitrate?

106. ## Calculus help plz

Using the first rule of derivative find 8(x-y)12?? And how can i solve these y^x+x^y=17,x+y=5

107. ## Government

Why is the level of voter turnout vitally important in elections?

108. ## Physics

What average power would a 1.20 multiply.gif 103-kg speedboat need to go from rest to 18.0 m/s in 4.79 s, assuming the water exerts a constant drag force of magnitude fd = 5.34 multiply.gif 102 N and the acceleration is constant?

109. ## Math

Solve the equation 2/3 O= n-3m

110. ## Physics

How does an electric motor work, linking to the theory of electromagnetism? I have already identified a few laws: -Ohms -Faraday's

csc^2 x = 5 over the interval 0

112. ## math

The sum of the ages of Diego and Carissa is 67 years. 11 years ago, Diego's age was 2 times Carissa's age. How old is Diego now? Translate the given information into an equation using the variable x = current age of Diego. Your equation should contain 67,

113. ## AP world history help

Which of the following aided in the adoption of Christianity in the Roman Empire? I. there was no painful initiation rite II. Jesus was a human figure III. initiation was done via baptism IV. decline of Hinduism

114. ## Chemistry

In winemaking, the sugars in grapes undergo fermentationby yeast to yield CH3CH2OH and CO2. During cellularrespiration, sugar and enthanol are "burned" to water vapor andCO2. A) Using C6H12O6 for sugar, calculate ÄH of fermentation and of

115. ## C++programming

Write an interactive C program that will accept each student’s name an exam grades as input, determine an average grade for each student, and then display the student’s name, the individual exam grades and the calculated average. The program should

116. ## PHYSICS

An automobile accident causes both the driver and passenger front airbags to deploy. a. If the vehicle travelled at a speed of 88.6 km/h is now at rest, find the change in momentum for both the 68.4 kg adult driver and the 34.2 kg child passenger. b. The

117. ## GN National Public School

If one third of 100 gm of 27% of aqueous solution is taken in a beaker and 10 gm of sugar is added to it,the concentration of resulting solution is.....

118. ## math

A cup of coffee at 173 degrees is poured into a mug and left in a room at 72 degrees. After 6 minutes, the coffee is 137 degrees. Assuming that Newton's Law of Cooling applies: After how many minutes will the coffee be 100 degrees?