# Meg

Most popular questions and responses by Meg
1. ## art

a collector enjoys artwork that includes realistic images of geographic feautres such as rivers, mountain , and plains. Which topic is he most likely to build his collection around? A) land and animal art B) map art C) architectural designs D) landscape

2. ## calculus

A long rectangular sheet of metal, 12 inches wide, is to be made into a rain gutter by turning up two sides so that they are perpendicular to the sheet. How many inches should be turned up to give the gutter its greatest capacity?

3. ## Calculus

A particle moves along a line so that at any time t its position is given by x(t)=2(pi)t+cos(2(pi)t). Determine the particle's maximum velocity.

4. ## Trig

The postal service places a limit of 84 inches on the combined lenght and girth (distance around) of a package to be sen parcel post. What Dimensions of a rectangular box with square cross-section will contain the largest volume that can be mailed?

5. ## chemistry

Give the symbol of the element of lowest atomic number whose ground state has: a) Four f electrons b) a completed d subshell c) six s electrons I don't understand ground state electrons at all? Could you explain them in addition to explaining the questions

6. ## PE

Which of the following organs is where most nutrients are absorbed Large intestine *** Esophagus small intestine Stomach 2. The kidneys contains millions of tiny filtering units called Urine Villi Peristalsis *** Nephrons Help me I do not get it

7. ## Chem - Titration

A 100.0-mL aliquot of 0.100 M diprotic acid H2A (pK1 = 4.00, pK2 = 8.00) was titrated with 1.00 m NaOH. Find the pH at the following volumes of base added and make a graph of pH versus Vb: Vb = 0, 1, 5, 9, 10, 11, 15, 19, 20, and 22 mL

8. ## trig

The number of revolutions made by a figure skater for each type of axel jump is given. Determine the measure of the angle generated as the skater performs each jump. Give the answer in both degrees and radians. a. single axel: 1.5 b. double axel: 2.5 c.

9. ## Chemistry

Geraniol is a compound found in rose oil that is used in perfumes. What is the molas mass of geraniol if its vapor has a density of 0.480 g/L at a temperature of 260.0 degrees Celsius and a pressure of 0.140 atm???

10. ## Math

the probabilities that a customer will rent 0 1 2 3 and 4 DVDs on a single visit to the rental store are 0.15, 0.25, 0.3, 0.25 and 0.05, respectively. construct a probability distribution for the data and draw a graph for the distribution

11. ## Math (Trig)

a ferris wheel has a radius of 10m and is one meter above the ground. If the ferris wheel makes 1 revolution every 20 seconds, write an equation that gives the height above the ground of a person on the ferris wheel as a function of time if that person

12. ## chemistry

When 50 g of silicon dioxide is heated with an excess of carbon, 32.2 g of silicon carbide is produced. what is the percent yield of this reaction? How many grams of CO gas are made?

13. ## I dont know

the idea that religion and government should be seperate is known as A) secularism B) democracy C) communism D) fascism i think it is D but if anyone can help me i go to connexus and i need help

14. ## personal finance

Please help me.... Match the example in Column A to the business structure in Column B. 1.) Doug and Vanessa are friends who want to start a carpet cleaning business together and share the ownership and profits. They are not concerned about personal

15. ## math

What is Jared's favorite six-digit number if the ten digit is his favorite digit, the sum of the hundred thousand digit and the thousand digit in his number from the largest place value to the smallest place value are consecutive numbers?

16. ## Physics

Josh pulls a sled with a force of 100-N at an angle 30° above horizontal axis. The total mass of the sled and Josh’s sister is 60.0-kg. The friction coefficient between the surface and the sled:static= 0.160; kinetic= 0.100 a) Determine if Josh can move

17. ## Math

I need help please. Laurie left home and ran to the lake at 10 mi/h. she ran back home at 8 mi/h. If the entire trip took 27 minutes, how far did she run in all?

Which of the following is a convention that Chinese artists used in paintings? They sketched pencil outlines and then painted over them with black ink. They used one type of brushstroke to give their paintings unity and balance. They painted humans much

19. ## Chemistry

A 2.00g sample of a gas SX6 has a volume of 329.5 cm3 at 1.00 atm and 20 celcius. What element is X?

20. ## Social studies help please

Why did the United States become involved in Mexico’s civil war (select 2 answers) -Relations had weakened between United States and the new government**** -Mexico was unable to end war without US intervention*** -the United States provides troops to

21. ## Physics

Two blocks M1 and M2 are connected by a massless string that passes over a massless pulley as shown in the figure. M1 has a mass of 8.25 kg and rests on an incline of 73.5°. M2 rests on an incline of 15.5°. Find the mass of block M2 so that the system is

22. ## Chemistry-Equation

How many moles of glucose, C6H12O6, can be "burned" biologically when 10.0 mol of oxygen is available?

23. ## Algebra 2

A farmer wants to set up a pigpen using 40 feet of fence to enclose a rectangular area of 51 square feet. Find the dimensions of the pigpen.

24. ## PHYSICS

A sprinkler mounted on the ground sends out a jet of water at a 20 ∘ angle to the horizontal. The water leaves the nozzle at a speed of 11 m/s . How far does the water travel before it hits the ground?

25. ## Vectors

Adam can swin at a rate of 2km/h in still water. At what angle to the bank of a river must he head if he wants to swim directly across the rivver and the current in the river moves at the rate of 1 km/h?

26. ## Physics

your electronics friend needs a 20-ohm resistor but has only 40-ohm resistors. He tells you that he can combine them to produce a 20-ohm resistor. how?

27. ## Chemistry

the specific heat of aluminum is 0.900 J/g degrees celsius. how much energy is required to heat 45.0g of aluminum from 20.0 degrees celsius to 50.0 degrees celsius. a. 2840 J b. 810 J c. 1220 J d. 2030 J

28. ## Chemistry

What is the oxidation states for all three elements in the formula Rb2SO3 ? Is this correct?-1,+8,-2

29. ## Chemistry

Which of the following is a dipole? KrF2, NH2Cl, CH2Br2, and SCN^- I'm pretty sure that KrF2 and NH2Cl are not dipoles, but why? also, what makes something be a dipole?

30. ## Science

Is a medical diagnosis considered a theory or a hypothesis?

31. ## Calculus

A company is designing shipping crates and wants the volume of each crate to be 4 cubic feet, and the crate's base to be a square between 1 and 1.5 feet per side. If the material for the bottom costs \$5, the sides \$3 and the top \$1 per square foot. What

32. ## Chemistry-Equations

Iron(III) oxide is formed when iron combines with oxygen in the air. How many grams of Fe2O3 are formed when 16.7 g of Fe reacts completely with oxygen?

33. ## geometry

On rainy days, Izzy goes from his house to the school by running 1.2 miles on West St, then makes a 90º turn and runs 0.5 miles on North Ave. a. If Izzy runs 7.5 miles per hour, approximately how much time will it take her to run to school on rainy days?

34. ## Physics

In an immersion measurement of a boy’s density, he is found to have an apparent weight of 6.86-N when completely submerged in water with lungs empty. The mass of the boy is 68.0-kg in air. The density of water is 1000-kg/m^3. a)Determine the density of

35. ## Calculus

Mr. Phillips decides to have a completely fenced-in garden. It will be laid out so that one side is adjacent to his neighbor's property. The neighbor agrees to pay for half of that part of the fence which will border his property. The garden is to contain

36. ## Chemistry-Equation

When iron rusts in air, iron(III) oxide is produced. How many moles of oxygen react with 2.4 mol of iron in the rusting reaction?

37. ## Physics

a woman on a bridge 75 high sees a raft floating at a constant speed on the river below.

38. ## Chemistry

Quantitative anaylsis of cl- ion is often performed by a titration with silver nitrate, using sodium chromate as an indicator. As standardized AgNo3 is addded, both white AgCl and red Ag2CrO4 precipitate, but so long as some cl- remains, the Ag2CrO4

39. ## Chemistry

Explain in terms of forces between structural units why H2O2 has a higher melting point than C3H8. Also, which between the two examples has a lower boiling point? NH3 or AsH3 C3H7OH or C2H5OCH3 Can you possibly give me a good website that simply explains

40. ## Math

A fertilizer covers 3/4 square foot in 1/2 hour. What is the unit rate of Square feet per hour?

41. ## math

A recent graduate's student loans total \$13,000. If these loans are at 4.1%, compounded quarterly, for 9 years, what are the quarterly payments

42. ## PHYSICS

A child pushes a merry-go-round with a force of 55.0 N at an angle tangent to the circle (that is, perpendicular to a radius). If the child pushes it through exactly one full circle, and the merry-go-round has a radius of 1.15 m, how much work does she do?

43. ## Geometry

The area of a regular hexagon is 35in.2. Find the length of the side.

44. ## English

Select the word or phrase in the sentence that is not used correctly 1) The physician started to perform the operation, but the patient was not yet completely under anesthesia. a) Started to b) Perform c) Was not d) Completely under 2) Before his death at

45. ## math

express 96 meters in 4 seconds as a unit rate

46. ## Geometry

A tree casts a 36 ft shadow. The angle of depression from the top of the tree to the tip of the shadow is 25°. Find the height of the tree to the nearest tenth.

47. ## HELP!! MATH

A boater finds herself 4 miles fromm the nearest point on a straight shore line whech is 6 miles from a shoreside motel. She plans to row on shore and then walk to a motel. If she can walk at 3 mph, at what speed must she be able to row so that the

48. ## chemistry

suppose you have two 1-L flasks one containing N2 at STP the other containg CH4 at STP how do these systems compare with respect to a)number of molecules B)density c)average kinetic energy of the molecules d)rate of effusion through a pinhole leak?

49. ## Chem

Set up a Hess’s law cycle, and use the following information to calculate ΔH∘f for aqueous nitric acid, HNO3(aq). You will need to use fractional coefficients for some equations. 3NO2(g)+H2O(l)→2HNO3(aq)+NO(g) ΔH∘ = -137.3 kJ

50. ## chemistry

Ammonium nitrate decomposes explosively at high temperatures to form nitrogen, oxygen, and water vapor. 2NH4NO3-->2N2+4H2O+O2. Calculate the number of grams of water formed when 25 L of N2 is produced in this reaction (assume STP)

51. ## Chemistry

Suppose the solubility of PbCl2 (s) 5.6 x 10^-2 M. Calculate the ksp

52. ## chem

How many grams of CH3COOH are needed to make 4.2 liters of aqueous solution of pH=3.4?Be sure to back correct from equilibrium molecular acid molarity to starting molecular acid molarity.

53. ## SCIENCE

Ms. Sue was very helpful with this question,but now one of my friends disagrees. I am more confused than ever. Please help. The use of a plant crop to harness the sun's energy for conversion to energy sources is termed _________. Ms. Sue explained to me

55. ## chemistry

An 80.0-gram sample of a gas was heated from 25 °C to 225 °C. During this process, 346 J of work was done by the system and its internal energy increased by 6365 J. What is the specific heat of the gas?

56. ## math

A is the set of all even natural numbers, and B is the set of all odd natural numbers. Describe a universal set for A and B. Also, with respect to this universal set, give a relationship between A and B.

57. ## Physics

A motorist drives north for 33.0 minutes at 77.0 km/h and then stops for 15.0 minutes. He then continues north, traveling 130 km in 1.80 h. a) What is his total displacement in km? b) What is his average velocity km/h?

A massless spring of constant k =84.8 N/m is fixed on the left side of a level track. A block of mass m = 0.5 kg is pressed against the spring and compresses it a distance d, as in the figure below. The block (initially at rest) is then released and

59. ## Chemistry

Rank the following in terms of increasing ﬁrst ionization energy. 1. Na, Mg, N, O, F 2. F, N, O, Mg, N 3. F, O, N, Mg, Na 4. O, N, F, Na, Mg 5. Na, Mg, O, N, F

60. ## Physics URGENT!!!

: A massless spring of constant k =84.8 N/m is fixed on the left side of a level track. A block of mass m = 0.5 kg is pressed against the spring and compresses it a distance d, as in the figure below. The block (initially at rest) is then released and

61. ## Chemistry-Equation

How many liters of hydrogen gas are needed to react with CS2 to produce 1.25 L of CH4 at STP?

62. ## Chemistry

A researcher studying the nutritional value of a new candy places a 5.80-gram sample of the candy inside a bomb calorimeter and combusts it in excess oxygen. The observed temperature increase is 2.93 °C. If the heat capacity of the calorimeter is 38.50

63. ## chemistry

What is the oxidation state of S in Rb2SO4? is the charge = 0?

64. ## Chemistry

What is the density of carbon monoxide gas at 127 celcius and 763 mm Hg?

65. ## chemistry

In a constant-pressure calorimeter, 60.0 mL of 0.310 M Ba(OH)2 was added to 60.0 mL of 0.620 M HCl. The reaction caused the temperature of the solution to rise from 23.44 °C to 27.66 °C. If the solution has the same density and specific heat as water,

66. ## Statistics

Two dice are tossed. What is the probability that the sum of both dice is a prime number? This is what I have so far Presuming two fair, 6-sided dice, each numbered 1 through 6: You can achieve one of the following results on any given roll: 2, 3, 4, 5, 6,

67. ## Chemistry

Rank the elements B, Al, Na, Mg from largest to smallest atomic radius. Would it be: Al, Mg, Na, B?

68. ## chemistry

A 48.0-g sample of an element has the same number of atoms as 6.00 g Na. What is the element?

69. ## math

Paul spent a half hour practicing piano and 3/8 hour practicing guitar how much time did he sPend in all practicing?

A salad dressing is 30% peanut oil. Rosie Wants To Make 3 CUPS OF DRESSING. How much peanut oil does she need?

71. ## physics

Bob can throw a 540 g rock with a speed of 26 m/s. He moves his hand forward 0.8 m while doing so. What is Bob's maximum power output as he throws the rock?

72. ## math

Prove that if p is a prime number and p is not equal to 3, then 3 divides p^2 + 2. (Hint: When p is divided by 3, the remainder is either 0,1, or 2. That is, for some integer k, p = 3k or p = 3k + 1 or p = 3k + 2.) I thought you might do three cases with

73. ## physics

An object is thrown straight up. At the same instant that the object reaches its maximum height, a second object is dropped from this maximum height. Which object hits the ground first and why? Also, a ball is thrown straight up. If the ball's initial

74. ## physics

Find the position and velocity of a particle at t = 1.92 s if the particle is initially moving east at a speed of 18.4 m/s and experiences an acceleration of magnitude 3.96 m/s2, directed west.

If 3.4 mol of methane is heated so that the temperature of the gas increases 45 K while its pressure remains constant, how much heat is added to the gas?

76. ## trig

the terminal side of an angle theta in standard position coincides with the line y=5x and lies in quadrant 3. find the six trigonometric functions of theta.

77. ## Chemistry- Equation

Aluminum reacts with sulfuric acid to produce aluminum sulfate and hydrogen gas. How many grams of aluminum sulfate would be formed if 250 g H2SO4 completely reacted with aluminum?

78. ## math

How can you use a proportion to solve a percent word problem? Explain in your own words.

79. ## chemistry

Nitrous oxide (N2O) is used as an anesthetic. The pressure on 2.50 L of N2O changes from 105kPa to 40.5 kPa. If the temperature does not change, what will the new volume be? I know the Boyle's law is P1 x V1 = P2 x V2

80. ## College Economics

Assume that it takes four hours of labor time to paint a room and three hours to sand a floor.If all 24 hours were spent painting, how many rooms could be painted by one worker? If a decision were made to sand two floors, how many painted rooms would have

81. ## GOVERNMENT HELP

Another one. Which amendment? Senator Russell argued that the federal government has no right to control marijuana sales since it is not mentioned in the Constitution. I think it's the ninth amendment because it guarantees unenumerated rights. Your

82. ## math

A necklace is 60 centimeters long and the beads on the necklace are 50 milliliters apart. How many beads are on the necklace? Surely you don't mean 50 milliliters. Surely you mean milliMeters. 50 mm = 5 cm. That makes it easy to calculate IF the diameter

83. ## Chemestry

The compound iron (II) chloride trihydrate has ____ mole(s) of water for every ____ mole(s) of ionic compound. three, two two, three three, one one, three

84. ## fin 301

explain how risk is taken into account for a financial instrument.

85. ## Math

523.3 repeating rounded?

86. ## GOVERNMENT HELP

I need to check these answers Mr. Smith and Mr. Jones go to court to settle an argument over a tree that is on Mr. Smith's yard but hangs over Mr. Jones' new cement driveway. Which amendment does this apply? I think it's the Ninth because it guarantees

87. ## Trigonometry

Someone please help!!!? 7. What is 1/cot(x) in terms of sine? This is what I've got so far: sin = 1/csc tan = 1/cot 1+cot2(x) = csc2(x) 1/1+cot2(x) = 1/csc2(x)

88. ## Math

Adding and subtracting rational expressions. 3x/x^2+x-12 - x/x^2-16

89. ## PHYSICS

A skier is gliding along at 2.0 m/s on horizontal, frictionless snow. He suddenly starts down a 10 ∘ incline. His speed at the bottom is 15 m/s . a).What is the length of the incline? b).How long does it take him to reach the bottom? (Please show work)

90. ## CHEM- need help ASAP

An equilibrium mixture in a 10.0 L flask contains 7.0 mol HI(g) and 1.0 mol each of I2(g) and H2(g). If 2.5 mol H2, 5.0 mol I2 and 2.0 mol HI are added to that equilibrium mixture how many moles of each gas will be present when equilibrium is

91. ## physics

Bob can throw a 540 g rock with a speed of 26 m/s. He moves his hand forward 0.8 m while doing so. What is Bob's maximum power output as he throws the rock?

92. ## Physics

A child pushes a merry-go-round with a force of 55.0 N at an angle tangent to the circle (that is, perpendicular to a radius). If the child pushes it through exactly one full circle, and the merry-go-round has a radius of 1.15 m, how much work does she do?

93. ## physics

Consider two cars, a very large one like a Hummer (mass 5m) and a small one like a Mini Cooper (mass m), both starting at the same point race toward the edge of a cliff. Assume that each car is accelerated by a constant force (same size force on each car)

94. ## math

Translate the following English sentence into a symbolic sentence with quantifiers: Between any integer and any larger integer, there is a real number. (universe is real numbers)

95. ## chemistry

If you weighed 5.0 grams of PLA, how many moles of LA monomer residues do you have?

96. ## math

Prove that if x and y are nonnegative real numbers, then (x+y)/2 ≥ sqrt(xy). Use the technique of working backward from the desired conclusion. Where in the proof do we use the fact that x and y are nonnegative?

97. ## Chemistry

In which solution (acidic, basic, neutral water, or doesn't matter) is sodium acetate most soluble? acidic solution Basic solution neutral doesn't matter I already tried basic solution and got it wrong.

98. ## calculus

f(x) = tan^2x+ sinx then f ' (pi/4) =

99. ## math

Find the horizontal and vertical asymptotes of the curve. y = 2x^2+x−1/x^2+x−42 x=? (smaller x-value) x=? (larger x-value) y=?