# Questions Asked onOctober 23, 2014

1. ## Trig/Pre-Calc...

Please help me with this. The finishing time for a runner completing the 200-meter dash is affected by the tail-wind speed, s. The change, t, in a runner's performance is modeled by the function shown below: t= 0.0119s^2 - 0.308s - 0.0003 Predict the

2. ## CHEM

How many moles of magnesium are needed to react with 16 g of O2? 2 MgO (s) + O2 (g) → 2 MgO (s)

3. ## Physics

Two massless springs (S1 and S2) are arranged such that one hangs vertically downward and the other is vertically upward, as shown in figure (a). When a 0.275-kg mass is suspended from S1, it stretches by an amount Δx1 = 0.062 m, as shown in figure (b).

4. ## Statics

A cantilever beam, made of a material with a Young's modulus, E with a rectangular cross section with a moment of inertia I, is under a uniformly distributed load, q, across the length L of the cantilever at a point load P at the free end of the

5. ## Statics

A rectangular beam, with cross-sectional width b, height h, Young's modulus Erect, has the same flexural rigidity as a circular beam with the same cross-sectional area. What is the Young's modulus, Ecirc, of the circular beam in terms of Erect,b, and h?

6. ## Statics

Four identical pin-pin ended solid concrete cylindrical columns that are L=10m tall need to be able to withstand 6.8×108N of force before Euler buckling. What should be the diameter, d, in meters, of each column if the force is uniformly distributed? The

7. ## Statics

Calculate the elastic buckling collapse stress (the compressive strength), σ∗el, for an open-cell polystyrene foam with a relative density of 0.1. (Es for polystyrene = 3.5GPa). Recall that C2=0.05. Give the results in MPa. σ∗el (in MPa): The energy

8. ## Statics

You have 1kg of aluminum (E=69GPa) to make a cylindrical tube with a high Euler buckling load. The tube must have a length L of 0.5m. You can either make a solid tube, or a thin walled tube with a wall thickness, t=0.5cm. The density of aluminum is

9. ## Statics

You have a stainless steel hollow rod (E=193GPa,ν=0.29) that has an inner radius r of 1.2cm, a wall thickness t of 0.7mm, and a length L of 5cm. Calculate the critical loads, in kN, for local buckling and Euler bucking (Pcr,local and Pcr,Euler,

10. ## Physics

A coil is wrapped with 200 turns of wire on the perimeter of a square frame of sides 20.5 cm. Each turn has the same area, equal to that of the frame, and the total resistance of the coil is 2.01 Ω. A uniform magnetic field is turned on perpendicular to

11. ## Language arts

How should the United States government have behaved in dealing with the disputes between the Cherokees and the white settlers?

12. ## Trig / Calc

What angle (in degrees) corresponds to 18.96 rotations around the unit circle? Enter the exact decimal answer.

13. ## Chemistry

Please help Suppose that 0.250mol of methane, CH4(g), is reacted with 0.400mol of fluorine, F2(g), forming CF4(g) and HF(g) as sole products. Assuming that the reaction occurs at constant pressure, how much heat is released? Substance ΔH∘f (kJ/mol) C(g)

14. ## math

A television set is 36 inches wide and has a diagonal length of 42 inches. To the nearest inch, how tall is the set? A.9 B.13 C.22 D.55 Is the answer D?

15. ## Chemistry

Suppose that 0.250mol of methane, CH4(g), is reacted with 0.400mol of fluorine, F2(g), forming CF4(g) and HF(g) as sole products. Assuming that the reaction occurs at constant pressure, how much heat is released? Substance ΔH∘f (kJ/mol) C(g) 718.4

16. ## Statistics

Assume that X, the starting salary offer to psychology majors is normally distributed with a mean of \$47,507 and a SD of \$5000. 1. The probability that a randomly selected psychology major received a starting salary offer greater than \$52,000 is______. 2.

17. ## English

@ words : 1- curtail 2- devastate 3- digress 4- incentive 5- incorporate 6- indispensable 7- intermittent 8- rigor 9- squander 10-succumb Linda never had to work hard to make good grades in high school. But in college, where the ___(8)___ of course work

18. ## Statics

Compare the Young's modulus E∗ of two open-cell foams. Which Young's modulus is higher? Recall that C1=1. 1. polystyrene: (Es∼3.5GPa), ρ∗/ρs=0.3 2. Al 7075-T651: (Es∼72GPa), ρ∗/ρs=0.1 E∗PS (in GPa): E∗Al (in GPa): Select the correct

19. ## Latin I

6. Select the best translation for "nuntiabant". (5 points) a. They do report b. They are reporting. c. They report. d. They kept reporting. I think it's D.

20. ## Algebra

Write an equation that expresses the relationship. Then solve the equation for c. q varies jointly as c and the square of h.

21. ## Spanish

Sra. are these three correct? I have a short assignment this week. Thank you! Conteste las preguntas utilizando el pluscuamperfecto de indicativo según el modelo. Use el mismo verbo que se usa en la pregunta. Modelo: ¿Por qué no nos ha dicho la verdad

22. ## physics

A 1.0-kg cart and a 0.50-kg cart sit at different positions on a low-friction track. You push on the 1.0-kg cart with a constant 2.5-N force for 0.15m . You then remove your hand, and the cart slides 0.35 m and strikes the 0.50-kg cart. By what amount does

23. ## Chemistry

The Ksp for BaCrO4 is 1.2X10-10. Will BaCrO4 precipitate when 10 mL of 1 X10-5M Ba(NO3)2 is mixed with 10 mL of 1X10-3M K2CrO4? I am not sure where to start

24. ## math asap

if a 40 m rope is cut into two pieces in the ratio 3 : 5, how long is each piece? i tried: x=one piece 3/5 = x/40 x= 3*40/5 x=120/5 x=24 is that right?

25. ## French

How do you respond to "Comment dit-on X en francais?"

26. ## Algebra

Find all complex numbers z such that z^2=2i. Write your solutions in form, separated by commas. So, "1+2i, 3-i" is an acceptable answer format, but "2i+1; -i+3" is not. Thank you!

27. ## Int.science

The rate at which a candle burns in millimeters per minute is: qualitative theoretical quantitative hypothetical

28. ## Int.science

The size of the chosen symbols on a graph may be used to indicate the: location of the data coordinates of the data uncertainty of the data relationship of the variables

29. ## Chemistry

A volume of 100.mL of H2O is initially at room temperature (22.00 ∘C). A chilled steel rod at 2.00 ∘C is placed in the water. If the final temperature of the system is 21.50 ∘C , what is the mass of the steel bar? Use the following values: specific

30. ## math

You are the financial planner for Johnson Controls. Assume last year’s profits were \$760,000. The board of directors decided to forgo dividends to stockholders and retire high-interest outstanding bonds that were issued 5 years ago at a face value of

31. ## Math

Given the following information: current assets = \$400; fixed assets = \$500; accounts payable = \$100; notes payable = \$45; long-term debt = \$455; equity = \$300; sales = \$450; costs = \$400; tax rate = 34%. Suppose that current assets, costs, and accounts

32. ## statistics

An instructor in a large lecture class found at the end of the semester that total points scored by students in his class was approximately Normal with mean 530 and standard deviation 80. If 10% of the class are to receive A's (he grades on a curve), what

33. ## Logic

Use Propositional Resolution to show that the clauses {p, q}, {¬p, r}, {¬p, ¬r}, {p, ¬q} are not simultaneously satisfiable. Proof takes 8 steps including the premises and the goal.

34. ## math

Suppose you take out a loan for 180 days in the amount of \$13,500 at 11% ordinary interest. After 50 days, you make a partial payment of \$1,000. What is the final amount due on the loan?

35. ## Physics

A ball player hits a home run, and the baseball just clears a wall 20.3 m high located 119.0 m from home plate. The ball is hit an an angle of 35° to the horizontal, and air resistance is negligible. Assume the ball is hit at a height of 1.0 m above the

36. ## algebra

There are three real numbers x that are not in the domain of f(x)=1/ 1+ (1+1/x). What is the sum of those three numbers. I think one number is 0. Thank you!

37. ## statisitcs

The combined math and verbal scores for students taking a national standardized examination for college admission is normally distributed with a mean of 560 and a standard deviation of 180. If a college requires a student to be in the top 40 % of students

38. ## calc

A water trough is 7 m long and has a cross-section in the shape of an isosceles trapezoid that is 40 cm wide at the bottom, 100 cm wide at the top, and has height 60 cm. If the trough is being filled with water at the rate of 0.3 m3/min how fast is the

39. ## physic

An object of mass m is at rest at the top of a smooth slope of height h and length L. The coefficient of kinetic friction between the object and the surface, μk, is small enough that the object will slide down the slope if given a very small push to get

40. ## math

write a multiplication equation and a division equation that represent the model shown below.176 *16=d this is correct.how to write a division equation.

41. ## statistics

The physical plant at the main campus of a large state university receives daily requests to replace florecent lightbulbs. The distribution of the number of daily requests is bell-shaped and has a mean of 46 and a standard deviation of 9. Using the

42. ## Logic

Given the premises (p ⇒ q) and (r ⇒ s), use Propositional Resolution to prove the conclusion (p ∨ r ⇒ q ∨ s). Proof takes 8 steps including the premises and the goal.

43. ## algebra

Find the smallest integer x where the expression srt(x-2)/x^2+x-6 is defined. I factored the denominator (x+3)(x-2) and the smallest value is 2 so the whole expression would have a value of 0. But, that is not the right answer. Thank you!

44. ## engligh

Which choice best describes the underlined words in the sentence? Look at the stars and planets on a clear night. (Points : 3) simple predicate complete predicate compound predicate none of the above

45. ## Chem

Solid urea, (NH2)2CO, burns to give CO2,N2, and liquid H2O. Its heat of combustion is -632.2 kJ/mol. Balance the equation for combustion of urea, and calculate the heat generated per mole of H2O formed. (Enter in kJ.)

46. ## Physics

A baseball (m = 149 g) approaches a bat horizontally at a speed of 42.2 m/s (94 mi/h) and is hit straight back at a speed of 48.1 m/s (108 mi/h). If the ball is in contact with the bat for a time of 1.10 ms, what is the average force exerted on the ball by

47. ## help

What government dose One Person Or Small Group Holds All The Power?

48. ## Statistics

The marks of 100 students in an examination are normally distributed with mean of 25 marks and a standard deviation of 10 marks. (a) Given that the pass mark is 20, estimate the number of students who passed the examination. (b) If 5.59% of the students

49. ## physics

A long jumper leaves the ground at an angle of 24.4◦to the horizontal an data speed of 9.52m/s.How far does he jump?The acceleration due to gravity is 9.8m. What maximum height does he reach?

50. ## Chemistry

Constant-volume calorimeters are sometimes calibrated by running a combustion reaction of known ΔE and measuring the change in temperature. For example, the combustion energy of glucose is 15.57 kJ/g. When a 2.500 g sample of glucose burns in a constant

51. ## Language Arts HEL;P!

Which of the following best describes the effect of beginning "Always to Remember" with a description of the memorial competition? A. This technique keeps the essay from being autobiography or fiction. B. This tatic gives background for the importance of

52. ## math

write a multiplication equation and a division equation that represent the model shown below.176 16=d

53. ## Math

123 Inc has a profit margin of 15%. Its total asset turnover ratio is 2 and its dividend payout ratio is 60%. What is the company's internal growth rate? Please show steps

54. ## Math

What is the slope of the line passing through (-3,4) and (2, -1)? 3/5 -1 1 ** -3/5

55. ## Math

You have the following data for the Fosberg Winery. What is Fosberg's return on assets (ROA)? Return on equity = 15%; Earnings before taxes = \$30,000; Total asset turnover = 0.80; Profit margin = 4.5%; Tax rate = 35%.

56. ## Chemistry

26.5 kJ of heat is added to 5.44 g of ice at 0 C. What phase(s) are present and what is the temperature of the system after all the heat is absorbed?

57. ## Algebra

How do I simplify (2a - b)(4a^2 - 2ab + b^2)? I keep getting 8a^3 - 8a^2b + 4ab^2 - b^3, but it shows wrong.

58. ## Math

You plan to make 24 equal quarterly payments (payments are at the end of each period) into an account to pays 8% (per year compounded quarterly). If you need \$5,000 at the end of 10 years (i.e. 4 years after the last payment is made into the account), how

59. ## math

A bottle of juice states that a serving is 1/2 cup. How many servings are in 2-pint container? ( Hint: One pint equals 2 cups?

60. ## Math help

You plan to make 24 equal quarterly payments (payments are at the end of each period) into an account to pays 8% (per year compounded quarterly). If you need \$5,000 at the end of 10 years (i.e. 4 years after the last payment is made into the account), how

61. ## physics

a spring lies on a horizontal table, and the left end of the spring is attached to the wall. the other is connected to a box. the box is pulled to the right, stretching the spring static friction exists between the table and the box

62. ## Math

Pey Soon has taken out a 20-year, \$150,000 mortgage with monthly payments (made at the end of each month) at a stated mortgage rate of 6.8% per year compounded semi-annually. If she makes each payment on time, what will be the mortgage principal remaining

63. ## chemsitry

How many grams of propane (C3 H8 ) will react with 3.29 L of O at 1.05 atm and -34°C? i know the balanced eqn is 1C3H8 + 5 O2 -----> 3CO2 + 4H20 and that PV=nrt , with T= -34 + 273.15 = 239.15K. n=(PV)/(RT) (F=for O2). = 0.176 mol O2 0.176 mol O2 * (1mol

64. ## math Help!!!!!!

Which number completes the Pythagorean triple: 12,16, ? A.18 B.20 C.22 D.24 Is the answer D?

65. ## Algebra

Sound travels at 343 meters per second. How far does it travel in 8 seconds? My answer is 2,744 meters.

66. ## algebra

The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acre-feet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature,

67. ## algebra

A piece of pottery is removed from a kiln and allowed to cool in a controlled environment. The temperature (in degrees Fahrenheit) of the pottery after it is removed from the kiln is shown for various times (in minutes) in the following table. Time(min)

68. ## Algebra

What is the 9th term of the arithmetic sequence defined by the rule below? A(n)=-14+(n-1) (2)

What body part would represent someone who is stubborn with their ideal but is flexible with small details? (Not the brain or heart)

70. ## Algebra

There are three real numbers x that are not in the domain of f(x)=1/ 1+ (1+1/x). What is the sum of those three numbers. 0 is one of them,I don't know the other ones.Thank you!

71. ## physics

A baseball is thrown at an angle of 20◦ relative to the ground at a speed of 25.6 m/s. The ball is caught 42.9416 m from the thrower. The acceleration due to gravity is 9.81 m/s2 . How long is it in the air?

72. ## physics

Consider a railroad carmoving and striking another car at rest. The two cars then become attached by a special hitch. Does the first car have momentum? and why?

73. ## Algebra

(7x^3 + 2x - 1) + (8x^2 - 6 + 2x - x^3) = 6x^3 + 8x^2 + 4x - 7 (-3x^4 + x^6 - 9x^5 + 2x^2 - 7) - (-2x^5 + x - 4x^2 - x^4 + 12) = x^6 - 7x^5 - 2x^4 + 6x^2 - x - 19

What body part would represent someone who is stubborn with their ideal but is flexible with small details? (Not brain or heart)

75. ## Micro economics

What is the optimizing behaviour of the firm?

76. ## Math step by step?

Solve for t. Show all steps. t over 5= 8 T= 40? I think.

77. ## physics

A person is standing on a spring bathroom scale on the floor of an elevator which is moving up and slowing down at the rate of 1.53 m/s 2 . The acceleration of gravity is 9.8 m/s 2 . If the person’s mass is 83.4 kg, what does the scale read?

78. ## biology

why meiosis is named as meiosis 1and2?

79. ## Physics.

A toy car runs off the edge of a horizontal table that is 1.21 m high. The car lands 1.39 m away from the edge of the table How fast was the car moving across the table just before it fell? ____m/s MY WORK: h=1/2gt^2 1.21=1/2(9.8)t^2 1.21=4.9t^2 scuare

80. ## World History (Ms. Sue)

when did camo start being used?

81. ## Chemistry

A 0.84 g sample of caffeine, C8H10N4O2, burns in a constant-volume calorimeter that has a heat capacity of 7.85 kJ/K. The temperature increases from 298.30 K to 303.35 K. What is the molar heat of combustion of caffeine (in kJ).

82. ## celebrating Diversity

To say that all African Americans are fast runners is an example of A. sexism. B. ableism. C. ageism. D. stereotyping. D is my Answer.

83. ## Physics.

A player kicks a football from ground level with an initial velocity of 28.8 m/s and 26 degrees above the horizontal. What is the ball's hang time? ______s What is the ball's maximum hight? ____ i am so confused on what type of equation i use! please help.

84. ## celebrating Diversity

One of the children in your care asks, "Why can't Sonya walk?" in reference to a four-year-old child with cerebral palsy. The best response is A."It doesn't matter, she's still our friend, right?" B."She can't walk, but she can talk and laugh like you."

85. ## Physics.

Bob hits a hockey puck with his stick. What forces are acting on the puck DURING THE ACTUAL HIT? a = weight b = friction c = tension d = forward force e = normal force Write down every letter that applies (in order) and without using any commas. my work:

5 + y/6=8

87. ## algebra

Maria’s garden has 24 meters of fence and she wants to fence the rectangular garden with wall on one side of the garden. She needs no fence along the wall side. Find the largest area of the Maria’s farm that can be fenced.

88. ## Chemistry (urgent)

Hydrolysis of a compound A, C7H6cl2 was carried out by refluxing with excess potassium hydroxide solution. the resulting solution was acidified with dilute HNO3 acid and excess silver nitrate was added to precipitate the chloride ions as silver chloride.

89. ## math

18 sections of fence each 1 meter long. What are the various sizes of rectangular pens using all 18 units of fence?

90. ## celebrating Diversity

Which one of the following qualities do interactions with others? A. Strong self esteem B. Respect for the view point of others C. Closed-mindedness D. Flexibility A is the answer

91. ## math

If a 40 m rope is cut into two pieces in the ratio 3:5, how long is each piece? I tried it but I checked it and it was wrong, please help.

92. ## Health

Which body part would you give to someone who is perceptive. Like, sees what's wrong with the business and changes it for the better. And why?

93. ## algebra

y^1/3(y^4/9-3y^2/9)

94. ## MATH ASAP~

Write an inequality for this sentence: The height h is greater than 15 feet.

95. ## algebra

X= log 3 5 * log 4 27 * log 3 sqrt 2 25

96. ## Math 222

Posted by Monica on Thursday, October 23, 2014 at 6:36pm. Please help me solve these two Rational Expressions? Sorry my addition sign does not work on my keyboard, so that is why I am using the word "plus". 1). g^2-6g-55 __________ g 2). k^3 plus k

97. ## Math

Joe is making a rectangular mosaic with colored tiles. He will use 20 tiles to make his design. What are all the different arrangements of tiles that Joe could use to design his mosaic?

98. ## phyics

_________ was the first to show that all objects fall toward Earth with constant ____________.

99. ## English

1. Twenty years is a long time. 2. twenty years is a long period. 3. 100 kg is very heavy. 4. 100 kg is a heavy weight. 5. Two hundred dollars is a lot of money for me. 6. Two hundred dollars is a great/good sum of money. 7. Twenty miles is a long

100. ## accounting

Blanche invested \$9800 in a savings account with a yearly interest rate of 2% for 15 years. How much simple interest did she earn?

101. ## Language Arts

Why does the author of "Always to Remember" discuss Maya Ying Lin's background? A. To show that she experienced hardships B. To appeal to Chinese-American readers C. To show its influence on her design D. To show her disintrest in architecture Is the

A marathon is and long. Estimate how many strides would be required to run a marathon. Assume a reasonable value for the average number of 3.1 ft/stride.

103. ## asap math

Solve for y. Show all steps. y over 4≤ –16

104. ## Int.science

The size of the chosen symbols on a graph may be used to indicate the: location of the data coordinates of the data uncertainty of the data relationship of the variables

105. ## Psychics

If a railroad car was moving and stroke another car at rest and the two cars then become attached by a special hitch. Does the first car have momentum? Why?

106. ## Biology

1. Mitochondria and chloroplasts reproduce the same way free-living bacteria do—by _____________. My answer: Binary fission. 2. The tropism that allows seedlings to find their way out of the soil and into the sunlight is _________________. My answer:

107. ## geography

what is the term for "products of the human imagination that please and entertain us and teach a cultures values"

108. ## biology

Which characteristic of life is maintaining a stable internal environment. A)Reproducing B)Homeostasis C)Growing and developing D)Responding to stimuli

asked by BBG.D2K need help plzz
109. ## English...

why are people talking about ebola when it started a long time ago? It's a serious question I'm asking and I know it doesn't relate to homework but when i tried searching it up it wont give me the right answer im looking for

y – 5 = –8

111. ## celebrating Diversity

To learn to respect others and develop healthy relationships, children need to A. be told what to think. B. develop strong self-esteem. C. learn to gain control over other children. D. confront people with different ideas. The answer is B.

112. ## english-stories

what are some interesting and detailed short story ideas ?

113. ## Chemistry

A piece of aluminum with mass of 5.0 g is immersed in 30.0 g of water. This system is heated electrically from 20.8 to 42.6°C. How many joules of energy are absorbed by the aluminum? (Cpaluminum = 24.4 J/mol-K; 1 mole of aluminum has a mass of 27.0 g)

114. ## Physics

A sign hangs supported by a rod and cable. The cable is at a 30 degree angle to the sign and the force on the rod is totally horizontal. If the sign weighs 200N what is the tension on the cable

115. ## Math

Can't get it in my head the following problem. Carol needs 10 panels each being 11feet tall. At \$13.75 a yard. How much will it cost to purchase supplies?

116. ## Math

a skateboard with a mass of 1.5 kg moves up a quarter pipe to a height of 5.0 meters. How fast was it moving at ground level?

117. ## Math problem?

Lauren needs at most \$80.00 for gas. How many twenty dollar bills does she need?

118. ## Simple Physics

Which of the following is most appropriate to follow motion in one dimension? -linear scale -solid coordinates -x-y-z coordinates -graph with x- and y-axes

119. ## Int.science

The rate at which a candle burns in millimeters per minute is: qualitative theoretical quantitative hypothetical

120. ## Chemistry

A home swimming pool contains 145 m3 of water. At the beginning of the swimming season, the water must be heated from 20 to 32°C. How many joules of heat energy must be supplied?

121. ## Math

Faucet A fills a sink in 2 hrs. Faucet A and B fill the same sink (together) in 1 hr 15 mins. Faucet B would take how long to fill the sink by itself?" (Faucet B is slower)

122. ## Chemistry

It requires 120 J of heat to raise the temperature of 70.0 g of rhodium from 280.0 K to 287.8 K. What is the molar heat capacity of rhodium?

123. ## Science

A straight line with a positive slope on a velocity-time graph indicates which of the following? no movement constant acceleration toward the reference constant velocity away from the reference constant acceleration away from the reference

124. ## Algebra

There are three real numbers x that are not in the domain of f(x)=1/ 1+ (1+1/x). What is the sum of those three numbers. Thank you!?

125. ## Grammar

I beg you for forgiveness, if there is any incorrect evaluation. He is very young not advisable to assign to bigger tasks in the filed. Pls correct the mistakes.

126. ## chemistry

Calculate the word done in joules when 1.0 mile of water vaporizes at 1.0 atm and 100 degrees Celsius. Assume that the volume of liquid water is negligible compared with that of steam at 100 degrees celcius, and ideal gas behavior.

127. ## Math

Solve 2x^3y^-3*2x^-1y^-3

128. ## Math

6 rectangular sheets of paper with the demensions of o.5m and 0.8m, if they do not overlap what is the total area covered

129. ## physics

A line directed to the west. A plane flies 20 degrees north of that direction ( 90 degrees north of that direction would be north..) if the plane flies for 340 km, determine its displacement toward the west and its displacement toward the north during its

130. ## Math Math!

Marcus buys groceries for no more than \$250.00 each week. He shops 4 times each month. How much should he budget for groceries for the month?

24 mius 13

132. ## Calculus

I need help determining the intervals of increase, decrease and the intervals of upward and downward concavity given f prime. f'(x)=(64x^4 - 125x) ^(-2/3). Im not sure how to solve this. I know that the function has no intervals of decrease, its the rest

133. ## Physics

Two masses, mA = 40.0 kg and mB = 55.0 kg, are connected by a massless cord that passes over a pulley that is free to rotate about a fixed axis. This device is known as an Atwood’s Machine. The pulley is a solid cylinder of radius R = 0.360 m and mass of

134. ## Math.

Is equation is true, false? I'm not sure. 3(4 + –5) = 3(–6 – 2)

135. ## Chemistry

Suppose 300.0 mL of 0.50 M HCl and 300.0 mL of 0.50 M NaOH, both initially at 22.0°C, are mixed in a thermos flask. When the reaction is complete, the temperature is 25.4°C. Assuming that the solutions have the same heat capacity as pure water, compute

136. ## ap calc

two particles are moving along a linear track according to the functions x1=t^2+2t and x2=-t^2+8t+80 for t is greater than or equal to zero. a)at what value of t will the two particles be in the same place b)will they be going in the same or opposite

137. ## physics

A ball is projected upward at time t = 0.0 s, from a point on a roof 10 m above the ground. The ball rises, then falls and strikes the ground. The initial velocity of the ball is Consider all quantities as positive in the upward direction. At time the

138. ## science

Which component of the technological system is achieved when an automobile airbag inflates?

139. ## physics

A brick is thrown upward from the top of a building at an angle of 33.5◦ above the hori- zontal and with an initial speed of 12.8 m/s. The acceleration of gravity is 9.8 m/s2 . If the brick is in ﬂight for 3.4 s, how tall is the building?

140. ## Chemistry

A volume of 100mL of a 0.330M HNO3 solution is titrated with 0.370M KOH. Calculate the volume of KOH required to reach the equivalence point.

141. ## science

Ralph is also swinging at the park. He has a mass of 72.6 kg, and his maximum velocity at the lowest point in his swing is 7.3 m/s. What is Ralph’s maximum kinetic energy?

142. ## science

Ralph is also swinging at the park. He has a mass of 72.6 kg, and his maximum velocity at the lowest point in his swing is 7.3 m/s. What is Ralph’s maximum kinetic energy?

Need help on identifying root word,suffix and prefix for control.

144. ## science

Ralph has the same mass of 72.6 kg, and his maximum velocity is still 7.3 m/s on the swing. What is the maximum height that Ralph reaches on his swing?

145. ## Statics

Calculate the deflection v at the free end, B, for the beams shown below. Both beams have the same rectangular cross section. Give your solution in terms of P,L,E and I.

146. ## Help?

Explain how to use mental math to simplify the expression. 6 • 3 • 5

147. ## Accounting

I need to know how to journalize this in a General Journal, but I don't know if it is required to even write down. Signed a lease agreement to rent office space for \$975 per month, beginning Feb 1st. Nothing was paid today. (This happened on Jan 15)

148. ## Math 12

I could really use some help with this problem. Joe bought 100 shares of stock at \$10.00 per share. When the shares increased to a value of \$N each, he made a charitable donation of all the shares to the Euclid Foundation. He received a tax refund of 60%

149. ## math

A) If x^2+y^3−xy^2=19, find dy/dx in terms of x and y. dy/dx=________ B) Using your answer for dy/dx, fill in the following table of approximate y-values of points on the curve near x=1 y=3. 0.96 ______ 0.98 ______ 1.02 ______ 1.04 ______ C) Finally,

150. ## Georgia Highlands college

Estimate the average force that a baseball pitcher's hand exerts on a 0.145-kg baseball as he throws a 39-m/s pitch. Assume the pitcher accelerates the ball through a distance of 3.0 m, from behind his body to where the ball is released and ignore the air

151. ## math

Given: 3x + y = 1. Solve for y. y = -3x + 1 y = -3x - 1 y = 3x - 1

152. ## english.

When did ebola spread to south africa. Like what month did it happen?

153. ## Finance

24.) For the case shown in the following table, the future value of the single cash flow deposited today at the end of the deposit period if the interest is compounded annually at the rate specified equals Single Cash Flow \$27,000 Deposit Period (years) 20

154. ## history

which best explains why archaeologists believe that native americans living during the mississippian period ( 1 point) A. tribal centers had churches and other symbols of worship B. Legends of an afterlife were passed down from generation to generation C.

155. ## math

if you have a gas tank that is 37" X 10"X 121/2" how many gallons of gas will it hold ?

156. ## chemistry

what is the excess reactant of H2SO4+2NaOH->Na2SO4+2H2O H2SO4: NaOH: n=? n=? c=0.025M c=0.030M v=0.4L v=0.4

157. ## S.S.

9. Under America's second party system, the Whigs stood for A. policies that directly supported commercial enterprises. B. policies that kept government hands off business and industry. C. a "liberally negligent" state. D. a "negative liberal state."

158. ## Math

Find a fraction between 7/9 & 8/9

159. ## English II

Compare the literary and rhetorical devices in Elie Wiesel's Nobel Peace Prize Acceptance Speech and his novel Night. Explain how these elements impact tone and mood. Support your claims with evidence from the text.

160. ## Language Arts HELP!

Which of the following sentences contains a verb that is correctly formed in the perfect tense? A. Susan is spoken at our club before B. Beverly has wanted to be a singer for years C. Desmond has love swimming in the ocean D. Jake have painted in his room

161. ## Int.science

An inverse relationship can be represented by: a straight line a bar chart

162. ## math

How many packs of DVDs can you buy with 198 dollars if one pack costs 18 dollars

The power, P, dissipated when a 6-volt battery is put across a resistance of R ohms is given by P=36R. What is the rate of change of power with respect to resistance?

164. ## math

how do you estimate fractions? I know how to estimate numbers and decimals but the questions wants us to estimate fraction sand have the answer in fraction form. the question is : 2 1/10 divided by 1 1/5= how would these be estimated? without estimating I

165. ## Grammar

1. Choose the answer that identifies the three cases of pronouns. nominative, objective, possessive nominative, antecedent, objective objective, possessive, prepositional objective, indefinite, possessive**** My answer

166. ## Chemistry

How many moles of ammonia are in 1.20E25 molecules of ammonia.

167. ## Algebra

What function represents the arithmetic sequence 3,7,11,15?

168. ## Language Arts HELP!

How fo you form the perfect tense of a verb? A. Use the helping verb (will) and the base form od a verb. B. Use a form of the verb (be) and the past participle of the verb. C. Use a form of the verb (have) and the present participle of the verb. D. Use a

169. ## English

what is another word for coordinating body? The WHO is the international coordinating body for battling the Ebola outbreak which has killed more than 4,500 people in West Africa. I need to change up the sentence so i won't be plagiarizing.

170. ## math

how would you calculate the largest prime number given a number x so for example say someone inputs 8 , the largest prime number is 7.

171. ## Algebra Slope Intercept Form

Write an equation in slope intercept form for each table x -7, 0, 7, 14 y 1, -1, -3, -5 What is the slope and y intercept

172. ## geometry

The volume of a basketball is 448.92 cubic inches, and the volume of a baseball is 12.77 cubic inches. How many baseballs would “fit” inside a basketball?

Choose the answer that identifies the nominative case pronouns. I, you, he, she, it, us, you, they I, you, he, she, it, we, you, they I, you, he, she, it, we, you, them I, you, he, she, its, we, you, they # 3 is the answer?

174. ## Math

Car Rentals charge 20 dollars per day plus a 10 dollar service charge to rent one of its compact cars. The total cost can be represented by the equation y=20x+10 where x is the number of days and y is the total cost Graph the equation What do the slope and

175. ## Math

How do you divide 3/4 by 2/3?

176. ## physics

A 1075 kg van, stopped at a traffic light, is hit directly in the rear by a 705 kg car traveling with a velocity of +2.06 m/s. Assume that the transmission of the van is in neutral, the brakes are not being applied, and the collision is elastic. What is

177. ## Chemistry

Solid urea, (NH2)2CO, burns to give CO2,N2, and liquid H2O. Its heat of combustion is -632.2 kJ/mol. Balance the equation for combustion of urea, and calculate the heat generated per mole of H2O formed. (Enter in kJ.)

178. ## Math Help!

Which set of numbers represents a pythagorean triple? A. 6,9,12 B. 7,10,12 C. 16,18,25 D. 27,36,45 Is the answer A?

179. ## math

Points A and B lie on the graph of the equation y = -4.3x. What are the y coordinates for each point? Point A: (-3, ) Point B: (5, ) Not multiple choice.. confused on how to find the other points

180. ## chem

mole fraction of CHOHCH in H2O calculate molality of solution

181. ## Math

The expression 9a + 6s is the cost for a adults and s students to see a musical performance. A. Find the total cost for three adults and five students. B. find the total cost for four adults and four students.

182. ## Language Arts HELP!

Which of the following sentences contains a verb in the future perfect tense? A. Andy is going to walk home with Beth every afternoon. B. Andy has been walking home with Beth every afternoon. C. Andy will walk home with Beth everyday next week. D. By

183. ## Science

A cell starts with 12 chromosomes, then goes through mitosis. How many cells are produced at the end of mitosis? How many chromosomes are in each of the cells at the end of mitoses? A cell starts with 12 chromosomes, then goes through meiosis. How many

184. ## confederation

William owes \$9,000.00 to a friend who is charging him interest of 1.60% p.m. he is required to settle the amount with 2 equal payments, one today and the other in 2 months. Calculate the size of the payments using 2 months as the focal date. Round your

185. ## Chemistry

When 5.4 g of NaCl and 3.6 g of AgNO3 are dissolved in water and mixed, what ions remain in the solution and how many moles of each will be there?

186. ## Managerial Finance

24.) For the case shown in the following table, the future value of the single cash flow deposited today at the end of the deposit period if the interest is compounded annually at the rate specified equals Single Cash Flow \$27,000 Deposit Period (years) 20

187. ## Math

Vanessa has 3 yards of cotton. She needs 3/4 yard for each skirt she makes. How many skirts can she make?

188. ## math

William owes \$9,000.00 to a friend who is charging him interest of 1.60% p.m. he is required to settle the amount with 2 equal payments, one today and the other in 2 months. Calculate the size of the payments using 2 months as the focal date. Round your

189. ## Trigonometry

Solve the equation cos2θ = 1/2sinθ 0º≤θ≤90º. (Hint: Graph each side of the equation and determine where the graphs intersect.)

190. ## Algebra Slope Intercept Form

Write an equation in slope intercept form for each table x -2, 0, 2, 4 y 12, 6 0, -6

191. ## biology

what is contracting subunit of skeletal muscle called

192. ## math

How do you solve this? -3y + 2 [6 9] [27 -18] [-12 15]=[30 6] -3y + 2 [6 9]- [-6 -9] -3y + 2[0 0] [-12 15] [12 -15] = [0 0] -3y + 2 = [27 -18]= -3y [27*2 -18*2] [30 6] [30*2 6*2] -3y =[54 -36] -3y /-3[54/-3 -36/-3] [60 8] = [60/-3 8/-3] y = [-18 12] [-20

193. ## math

Jack used the digits 4,5,6,7 to make the largest and smallest numbers possible. Then he subtracted the 2 numbers and came up with 2,997. What did Jack do wrong?

194. ## Physics

It takes 6.7 J of work to stretch a spring 4.4 cm from its unstressed (relaxed) length. How much work (in J) is needed to compress the spring an additional 3.8 cm? I found the spring potential energy to be 6.7 J, and the spring constant to be 6921.5. I

195. ## CHEMISTRY

How many moles of magnesium are needed to react with 16 g of O2? 2 MgO (s) + O2 (g) → 2 MgO (s)

196. ## SCIENCE FOR 7TH GRADE

i need to conduct a scientific investigation and i need some ideas. Ex. " how does the amount of sunlight affect a plants growth" I need something like what is listed above. Thank you

197. ## science

a ladder is at rest with its upper end against a wall and the lower end on the ground .Is the ladder more likely to slip,when a man stands on it at the bottom or at the top?gove reason.

198. ## math Help!!!!!!

Which set represents a pythagorean triple? A.27,38,42 B.33,44,55 C.35,38,42 D.68,72,81 Is the answer D?

199. ## Trig calc

A) P is approximately (0.883, 0.469), is a point on the unit circle with angle 28 degrees estimate the following. Sin 152 degrees = Cos 152 degrees =

200. ## MATH

Juan has 28 paperback books. Each book is 1 1/4 inches wide. Will all his books fit on one shelf? If not, how many will fit and how many will have to go on another shelf? If yes, how many more paperback books, if any, will fit on the shelf?

201. ## physics

suppose a soccer player boots the ball from a distance 35 m into the goal. find the initial speed of the ball if it just passes over the goal, 2.4 m above the ground, given the initial direction to be 40° above the horizontal

202. ## Chemistry

Suppose 100.0 mL of 1.00 M HCl and 100.0 mL of 1.00 M NaOH, both initially at 23.0°C, are mixed in a thermos flask. When the reaction is complete, the temperature is 29.8°C. Assuming that the solutions have the same heat capacity as pure water, compute

203. ## physics

the mass of the truckand its contents is 7460kg. find the magnitude of the forces exerted by the ground a) the front wheels b)the rearwheels of the truck.

204. ## Maths Question

the slope of a curve y=f(x) is given by dy/dx= (x-1)(x-2)^2(x-3)^3(x-4)^4(x-5)^5 for what value or values of x does y have a local maximum/miniumum? justify your answer. i tried solving this question but couldn't figure out how to do it. i even asked my

205. ## physics

an object is attached to the lower end of a 100-coil spring hanging from the ceiling.the spring stretches by 0.160m. the spring is then cut into two identical springs of 50 coils each. as the drawing shows, each spring is attached between the cieling and

206. ## Chemistry

An electrical heater is used to add 20.50 kJ of heat to a constant-volume calorimeter. The temperature of the calorimeter increases by 5.42°C. When 1.25 g of methanol (CH3OH) is burned in the same calorimeter, the temperature increases by 7.49°C.

207. ## trigonometry

The angles of elevation of the top of a tower as observed from the bottom and top of a building of height 6th are 60° and 45° respectively.The distance of the base of the tower from the base of the building?

208. ## physic

A pair of students are lifting a heavy trunk on move-in day. (Figure 1) Using two ropes tied to a small ring at the center of the top of the trunk, they pull the trunk straight up at a constant velocity v⃗ . Each rope makes an angle θ with respect to

209. ## physics

in preparation in shooting a pinball machine, a spring(k = 675N/m) is compressed by 0.0650m relative to its unstrained lenght.the ball(m = 0.0585kg) is at rest against the spring at point A. when the spring is released ,the ball

I am reading this article Disease, Wilderness Warfare, and Imperial Relations: The Battle for Quebec, 1759--1760 I need to do critical analysis I believe I know what author is trying to argue but a little more clarification would be great.

211. ## physics

astronauts on a distant planet set up a pendulum length 1.2m. the pendulum executes simple harmonic motion and makes complete vibrations in 280s. what is the magnitude of the acceleration due to gravity of this planet?

212. ## Algebra

Find the slope m=1600-760/60-40

213. ## Science

What arrangement means in Science?...Thank you for your help.

214. ## ap calc

suppose that the position functions of 2 bugs B1 and B2 in motion along the same line are B1=1/2t^2-t+3 and B2=-1/4t^2+t+1 for t is greater than or equal to zero. a) prove the bugs will not collide b)how close do the bugs get to each other? I would greatly

215. ## Science Project: Teeth

What can I write in the discussion center of my paper in APA Style? Before doing an experiment?

216. ## Calculus

Let f be a function such that f(−6)=−6, f(6)=6, f is differentiable for all real values of x and −1≤f'x≤1 for all real values of x. Prove that f(x)=x for all −6≤x≤6 I tried applying the mean value theorem here but I'm not sure where to

217. ## ap calc

I have solved the problem but am not sure it it is right. I would appreciate if you would check to see if my answer is right. The height of the ball thrown upwards from the top of a 20 foot hill is given by h(t)= -16t^2+90t+20 ft (where t is measured in

218. ## celebrating Diversity

Which one of the following qualities do not help children assess situations and assist them in interactions with others? A. Strong self esteem B. Respect for the view point of others C. Closed-mindedness D. Flexibility A is the answer

219. ## Math 222

Please help me solve these two Rational Expressions? Sorry my addition sign does not work on my keyboard, so that is why I am using the word "plus". 1). g^2-6g-55 __________ g 2). k^3 plus k ___________ k^2 plus k-42

220. ## ap calc

suppose that the position functions of 2 bugs B1 and B2 in motion along the same line are B1=1/2t^2-t+3 and B2=-1/4t^2+t+1 for t is greater than or equal to zero. a) prove the bugs will not collide b)how close do the bugs get to each other? I would greatly

221. ## Algebra

The function f(x) satisfies f(sqrt(x+1))=1/x for all x>= -1, x does not = 0. Find f(2). Couldn't you just plug it in? sqrt(3) would be 1/sqrt 3? Thank you.

222. ## relativity

A runs at speed 4c=5 toward B, who is at rest. C is between A and B. How fast should C run so that she sees both A and B approaching her at the same speed? i have tried this but not sure we have to use relativity i thing. else without that i solved and got

223. ## Algebra

Let f(x)-3x-7/x+1. Fidnd the range of f. Give your answer as an interval. Please enter your response in interval notation. I figured out the range, ( -inf,-1) and (-1, inf) Thank you.

224. ## Math (Functions - Word Problem)

The numbers d (in millions) of drug prescriptions filled by independent outlets in the United States from 2000 through 2007 can be approximated by the model d(t)= 10.6t + 699, 0 ≤ t ≤ 4 15.5t + 637, 5 ≤ t ≤ 7 where t represents the year, with t=0

225. ## AP Gov

1. Which of the following is true about the Supreme Court? a. the justices have extended the right to privacy in all areas b. the justices ruled that the right to privacy includes gay and !@#\$%^& consensual relations c. the justices have overturned Miranda

226. ## English

1. The last number of concert was impressive. 2. The last number of the concert was impressive. (Which one is correct? Do we have to use 'concert' or 'the concert'?) 3. Everyone was deeply impressed by the last number on the program. 4. Everyone was deeply

227. ## Algebra

Let f(x)=x^2+4x-31. For what value of a is there exaclty on real value of x such that f(x)=a? Thank you!

228. ## English

1. The crowd was small. 2. The crow were deeply impressed by the concert. 3. The audience was large/big. 4. The audience were began to talk loudly. 5. The family is large/big. 6. The family are all well. 7. The committee is composed of 6 members. 8. The

229. ## Math Help!

If the lengths of the legs in a right triangle are 7 and 8, what is the approximate length of the hypotenuse? A. 1.4 B. 3.8 C. 5.4 D. 10.8 Is the answer D? Thanks

230. ## Algebra

Let f(x)=3x^2-4x. Find the constant k such that f(x)=f(k-x) for all real numbers x. Thank you!

231. ## Math--1 question plz?

Use the Distributive Property to multiply. (x – 9)5

232. ## math algebra

A new shopping is opening this month.before agreeing to open shops, store managers had toconsider monthly rent and whether to pay one time fee to put shop name on sign in front of store. Kikis kupcakes number of months total rent paid 2 9700 5 16750 8

233. ## Algebra

Let f be a function such that f(x+y)=x+f(y) for any two real numbers x and y. If f(0)=2, then what is f(2012)? Thank you!

234. ## Algebra

The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acre-feet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature,

235. ## Algebra

Is the following relation a function? ((0.3, 0.6). (0.4,0.8), (0.3,0.7), (0.5,0.5))

236. ## US History

After the revolution, why were states hesitant to give up power?

237. ## Math Help!

Which set represents a Pythagorean triple? A. 2,5,6 B. 6,8,10 C. 8,8,128 D. 8,10,256 Is the answer D?

238. ## Physics

The helicopter in the drawing is moving horizontally to the right at a constant velocity. The weight of the helicopter is W=54300 N. The lift force L generated by the rotating blade makes an angle of 21.0° with respect to the vertical. (a) What is the

If you had to use a body part to represent that someone is independent. Which body part would you use and why?

240. ## statistics

3. Community Health Center, a new patient clinic in your town serving only underinsured and uninsured patients, has asked you to help its HIM department. Calculate the number of shelving units needed for a medical record filing system based on eight

241. ## Algebra

Mark starts a rock climb when he is 1 mile above sea level. He can climb at the rate of 1.5 miles per hour. Which of the following functions would express Mark's height above sea level over time? f(x) = 1.5x f(x) = 1 + 1.5x f(x) = 2.5x

242. ## math Help!!!!!!

Which set represents a Pythagorean triple? A.1,2,4 B.2,4,6 C.3,4,10 D.5,12,13 Is the answer C?

243. ## Algebra

Complete the range of the function f(x)=sqrt(x^2). Thank you!

244. ## Science

What arrangement means in Science?...Thank you for your help.

245. ## ap calc

two particles are moving along a linear track according to the functions x1=t^2+2t and x2=-t^2+8t+80 for t is greater than or equal to zero. a)at what value of t will the two particles be in the same place b)will they be going in the same or opposite

246. ## Physics

A 1410-kg submarine rises straight up towards the surface. Seawater exerts both an upward buoyant force of 16760 N on the submarine, as well as a downward resistive force of 1080 N. What is the submarine's acceleration?

247. ## arithmetic

The minute hand on a clock is 49mm long. What area does it pass over in 30 minutes.

248. ## Physics

A car is traveling up a hill that is inclined at an angle θ above the horizontal. Determine the ratio of the magnitude of the normal force to the weight of the car when (a) θ = 18o and (b) θ = 30o.

249. ## celebrating Diversity

Which one of the following is not a game designed for helping children with language learning? A. Jumping Fun B. Crack the Whip C. Shopping Game D. Follow the Leader B is the answer.

250. ## physics

i need help setting up the equation. do i break up the problem into two parts? thanks in advance. A 3 kg block travels along a horizontal surface with a coefficient of kinetic friction of 0.18 at a speed of 7 m/s. After sliding a distance of 1.8 m the

251. ## math

A college student is looking at her monthly checking account records. On September 1, 2008, her checking account held a balance of \$1,050. At the end of March 2009, her checking account held a balance of \$800. What is the monthly rate of change for the

252. ## History

During the election of 1936, declaring their party a "millionaire's union," Franklin Roosevelt focused mainly on defeating the A. Liberty League running Father Coughlin. B. Union Party running Gerald K. Smith. (C. Liberty League running Alfred M. Landon.)

253. ## math

If vector u = [1,-3,-2] and vector v = [4,-5,3] find: a) |vector u + vector v - 5j | b) Find Q, where P (-7,5,-1] and vector PQ=2(vector u) c)find vector w which is orthogonal to both vector u and vector v

254. ## GLOBAL HISTORY 10 REGENTS!!

Who (what group) was responsible for making moderate reforms during the French Revolution?

255. ## math

Start from 110 feet away, a person on a bicycle rides towards a checkpoint and then passes it. The rider is travelling at a constant rate of 30 feet per second. The distance between the bicycle and he checkpoint is given by the equation d = |110 - 30t|. At

256. ## Math Help!

What is the hypotenuse of a right trianlgle if the legs are each 20 inches long? Round to the nearest whole number. A. 28 B. 29 C. 30 D. 31 Is the answer B? Thanks

257. ## Math

A decimal number changed to 23.7 after it was rounded. Give a decimal number that is less than 23.7 and another that is greater than 23.7 that each round to 23.7. Explain to what place each number was rounded.

258. ## science!!

A couple has just learned that their daughter has hemophilia. They already have a son who does not have the disease. What are the genotypes of the couple? Explain your reasoning. ---------------- The gene for hemophilia is sex-linked, a recessive on the

259. ## English/help almost due

which writer of early romanticism—Washington Irving, James Fenimore Cooper, and William Cullen Bryant —do you think has had the greatest impact, and why

260. ## French

If I introduce to you "un copain," is the person a boy, girl, or a teacher?

261. ## Chemistry

88-L sample of dry air cools from 197 degree celsius to -48 degrees celsius while the pressure is maintained at 2.93 atm. what is the final volume?

262. ## Math Help!

Which set represents a Pythagorean triple? A. 1,2,4 B. 2,4,6 C. 3,4,10 D. 5,12,13 Is the answer D? Thanks

263. ## science

what is kinetic energy and potential energy? Can u give me an example. thank you.

264. ## Math

Can you also use the LCM of the denominators of the fractions to rewrite the difference 8/15-1/6? What is the difference?

265. ## Accounting

On the balance sheet under current assets there is an amount called Accounts receivables less allowances. Does it mean its already the net accounts receivable? or do i have to subtract it to get the net?

266. ## Physics

A massless pan hangs from a spring that is suspended from the ceiling. When empty, the pan is 50 cm below the ceiling. If a 105 g clay ball is placed gently on the pan, the pan hangs 60 cm below the ceiling. Suppose the clay ball is dropped from the

267. ## Physics

A box slides from rest down a frictionless ramp inclined at 35.0° with respect to the horizontal and is stopped at the bottom of the ramp by a spring with a spring constant of k = 3.50 104 N/m. If the box has a mass of 12.0 kg and slides 3.00 m from the

268. ## Physics

An artillery shell is fired at an angle of 67.4◦ above the horizontal ground with an initial speed of 1560 m/s. The acceleration of gravity is 9.8 m/s2 . Find the total time of flight of the shell, neglecting air resistance. Find its horizontal range,

269. ## Algebra

What is the domain of the function l(y)= 1/(y-2)+(y-8)? Thank you!

270. ## Physics Mechanics

A 2.30 kg block is acted upon by a horizontal force F(x) = 30.0 - 10.0x where the force is measured in Newtons if x is measured in meters. The coefficient of kinetic friction between the block and the flat surface is 0.170. The block is initially at x = 0

Which body part would you give to someone who is perceptive. Like, sees what's wrong with the business and changes it for the better

272. ## History

What did not contribute to the economic growth in the 1950s? A. Baby Boom B. Cold War Spending C. Agricultural Expansion D. Increased Consumer Goods Manufacturing Im stuck between C and D

273. ## algebra

You have 10,000.00 to invest in two types of stock. the expected annual returns for the stocks are: stock A - 10 percent, stock b - 6 percent. You want the overall annual return to be 8 percent. Write a linear system of equations that represents the given

274. ## physics

find by calculation,the resultant two equal forces of 6N each acting at a 4N point at an angle of (a) 60 degree (b)120 degree with each other{hint cos120= -cos60 =1 and half or 1/2

275. ## physics

find by calculation,the resultant two equal forces of 6N each acting at a 4N point at an angle of (a) 60 degree (b)120 degree with each other{hint cos120= -cos60 =1 and half or 1/2 cos 60 =V2

276. ## Chemistry

A home swimming pool contains 145 m3 of water. At the beginning of the swimming season, the water must be heated from 20 to 32°C. How many joules of heat energy must be supplied?

277. ## celebrating Diversity

When do children begin to notice differences in gender, race, and ability? A. Only when adults make them aware of these differences B. From 8 10 years old. C. During the preschool years D. From the moment they're born This answer is C.

278. ## math

if you have 6 cars, 10 trucks, 14 suv, 15 minivan, at this rate how many trucks would pass luann if 90 vehicles passed her. show your work

279. ## algebra

What is the range of the function r(x)-1/(1-x)^2? Express your answer in interval notation. Thank you!

280. ## math

a ream of paper contains 500 sheets how many reams are needed to type a manuscript of 6000 pages explain how you know

281. ## math

a poetry class won a \$325 prize.the 13 students in the class share the prize equally.how many dollars,d,does each student receive?use the area model to help

282. ## Algebra

What are two numbers that add to 615 but multiply to -90000? I'm trying to factor the quadratic x^2+615x-90000

283. ## celebrating Diversity

A basketball team depends on the many talents of its players. This is an example of A. multiculturalism. B. inclusion. C. tolerance. D. diversity. D is my answer.

284. ## Math question?

Solve for t. Show all steps. t over 5= 8

285. ## science

how do the instincts of migration and hibernation help animals to survive

286. ## celebrating Diversity

Understanding culture is critical for anyone who works with young children because A. the children in our care most often have the same cultural beliefs as we do. B. our cultural beliefs effect every interaction that we have. C. we want children to

287. ## science

is this an example of potential energy with household item? t.v